JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

Here's some projects that our expert Javascript Developers made real:

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!

From 663,437 reviews, clients rate our Javascript Developers 4.9 out of 5 stars.
Hire Javascript Developers

JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

Here's some projects that our expert Javascript Developers made real:

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!

From 663,437 reviews, clients rate our Javascript Developers 4.9 out of 5 stars.
Hire Javascript Developers

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    623 jobs found
    Resolve WordPress PHP Errors
    6 days left
    Verified

    Four of my WordPress installs are showing a mix of warnings, deprecated calls, “Doing it Wrong” notices, duplicate queries and—on one site—a persistent cURL 28 timeout. I have Query Monitor logs for each domain: • – 4 warnings, 2 deprecated, 4 “Doing it Wrong”, 45 duplicate queries • – 20 deprecated, 6 “Doing it Wrong”, 28 duplicate queries • – 1 deprecated, 16 “Doing it Wrong”, 45 duplicate queries, cURL error 28 • – 1 deprecated, 1 “Doing it Wrong”, 35 duplicate queries What I need from you 1. Analyse the Query Monitor output, locate the root causes and clean every warning, deprecated call and notice without disrupting live traffic. 2. Optimise or refactor...

    $95 Average bid
    $95 Avg Bid
    68 bids

    I already have a JavaScript-based publisher broadcasting a feed ID; now I need the matching subscriber side written, wired up, and proven to work. The subscriber must listen for the incoming feed ID, retrieve the corresponding Janus feed ID that is stored on the backend, and make it available for the rest of the app. You can assume the publishing endpoint and message format are stable; the gap is entirely on the listening side. I’ll share the existing publisher code and the backend route that exposes the Janus feed map so you can test end-to-end. Deliverables • Clean, well-commented JavaScript subscriber code that connects, listens, and reacts to the publisher’s messages • A concise demo or test script showing the feed ID arriving and the correct Janus feed ID b...

    $91 Average bid
    $91 Avg Bid
    22 bids

    Project: Build an End-to-End E-Commerce Website for a New Clothing Brand We are a brand-new e-commerce clothing brand and we’re looking for an experienced web developer or team to build our online store from scratch (or using a robust ecommerce framework), with a modern user experience and full e-commerce functionality. We want a site that matches or exceeds the features and experience offered by The Souled Store, including clean product presentation, intuitive navigation, modern UI/UX, and scalable backend. If you’re experienced with ecommerce, responsive design, payment gateways, and building performant & maintainable sites — we want to hear from you. Key Features & Requirements Product & Catalogue Features Grid-based product listing (category pages, fi...

    $131 Average bid
    $131 Avg Bid
    70 bids

    I need a small, fuss-free utility that produces 10 – 50 valid email addresses with truly random usernames. Don’t worry about marketing, transactional, or newsletter formatting—I only care about the address itself. Here’s the flow: I’ll hand you a text file containing seed words that you can shuffle, splice, or combine however you like. Your code (Python, JavaScript, Bash, or anything lightweight) should turn those seeds into unique usernames, append a placeholder domain such as @, and hand the results back to me in a single CSV or TXT file. Acceptance check • Exactly the quantity requested (I’ll confirm the final count before you run). • No duplicate usernames. • Each address is RFC-compliant: lowercase letters, numbers, optional...

    $29 Average bid
    $29 Avg Bid
    16 bids

    I run my site on BludIT with the “bpers” theme and now need a skilled developer who can take it beyond the vanilla look-and-feel. I need following modifications: BludIT-CMS Modification: a. One can't select multiple categories during a blog-post writing, this functionality is by default in the BludIT CMS. I want you to program it so, that I can select and open the single post in different categories. b. There is no comment box, I want a comment box to be shown below just after every post. to control spams, reCAPTCHA must be installed after every comment box Theme Modification: I am using "Bpers" Theme and I need few modifications. a. The Menu-Part: must have a drop-down menu b. footer: must be divided into 4 parts. 1. 1st part company-logo, below an A...

    $70 Average bid
    $70 Avg Bid
    12 bids

    I already run my public-facing site on Google Sites and now need a lightweight queue-booking tool so patients can reserve a slot and watch their place update live. I would like you to build the entire workflow with nothing more than Google Sheets and Google Apps Script, keeping everything inside the free Google Workspace tier. Core flow • A patient opens an embedded form or mini-app inside my Google Site, enters a phone number for one-time verification, chooses an available slot and confirms. • Their entry is written to a Google Sheet that acts as the single source of truth for the queue. • On a separate “Now Serving” screen (also embedded), every patient instantly sees real-time updates to position and estimated wait through in-app pop-ups or dynamic page...

    $121 Average bid
    $121 Avg Bid
    36 bids

    I’m ready to move a Retrieval-Augmented Generation chatbot from concept to production and need a developer who can own the entire flow—from data retrieval right through to a polished, corporate-grade interface. Here’s what I’m looking for: • Front-end: Build a modern UI in Python (e.g., Streamlit, FastAPI with Jinja, or a comparable Python-based framework). The look should feel clean and professional, matching a corporate design language. If you prefer React, Angular, or Vue, that’s fine as long as it cleanly talks to the back-end and preserves the corporate aesthetic. • RAG pipeline: Implement a robust retrieval layer (vector store or hybrid search), connect it to the LLM of choice, and ensure responses are properly grounded in the source documen...

    $211 Average bid
    $211 Avg Bid
    21 bids

    I have a fully-finished static HTML multipage site and need it rebuilt on WordPress while preserving every visual and functional detail. The layout, typography, colours, images, links, and responsive behaviour should look and feel exactly the same—no redesign, no new features, just a faithful replication. I’ll take care of hosting and final deployment once you hand over the completed WordPress package. Deliverables • Custom theme or child theme that mirrors the current HTML design pixel-perfectly • All existing pages, menus, and assets migrated and linked correctly • Clean, well-commented PHP, CSS, and JavaScript so I can maintain it easily • Responsive behaviour matching the original site across modern browsers Before signing off, I’ll tes...

    $186 Average bid
    $186 Avg Bid
    282 bids
    Need Front end dev
    6 days left
    Verified

    We need an expert HTML, CSS and JS developer for static html page

    $4 / hr Average bid
    $4 / hr Avg Bid
    84 bids

    I need a browser-based karaoke application that runs smoothly on both desktop and mobile browsers. The core flow is simple: users land on the site, upload their own song or backing track, hit “Sing,” perform in real time, and receive a mixed recording (their vocal plus the track) to download or share. Key requirements • Web platform only – no native mobile or desktop builds. • User-supplied content – there is no internal song library; every session starts with an upload. • Integrated recording – record the backing track and microphone simultaneously, then output a single audio file. Low latency and volume balancing are essential. Implementation details I’m happy to leave tech stack choices open, but the front end must be responsive...

    $21 Average bid
    $21 Avg Bid
    10 bids

    I need a browser-based karaoke application that runs smoothly on both desktop and mobile browsers. The core flow is simple: users land on the site, upload their own song or backing track, hit “Sing,” perform in real time, and receive a mixed recording (their vocal plus the track) to download or share. Key requirements • Web platform only – no native mobile or desktop builds. • User-supplied content – there is no internal song library; every session starts with an upload. • Integrated recording – record the backing track and microphone simultaneously, then output a single audio file. Low latency and volume balancing are essential. Implementation details I’m happy to leave tech stack choices open, but the front end must be responsive...

    $445 Average bid
    $445 Avg Bid
    53 bids

    I’m kicking off the Finternet App—the first of two products in our roadmap—and I need a front-end specialist who can translate heavyweight finance and cryptography into an experience that feels light, clear, and agentic. Tech stack & collaboration You’ll lead the React, and TypeScript front-end, plugging into APIs from our blockchain, cryptography, and settlement teams. Expect daily access to domain experts who can clarify protocol-level details so you can stay focused on UX. Scope of work The initial milestone concentrates on four pillars: • Financial transaction management with real-time status updates • Cryptographic operations management—signing, verification, and key handling surfaced cleanly to users • Unified representation...

    $13 / hr Average bid
    $13 / hr Avg Bid
    44 bids

    I’m ready to give our current website a complete overhaul so it feels fresh, professional, and unmistakably corporate. The new front-end should communicate credibility at a glance—clean grids, strong typography, and a colour palette that aligns with a modern corporate brand. Alongside the visual facelift, I need a secure, intuitive admin panel so my team can keep the site alive without touching code. From that dashboard we must be able to: • add or edit page content • upload and organise gallery images • publish, archive, and sort activities and ongoing projects Whether you build on a custom Laravel or React solution, or suggest another reliable framework, the key is a smooth workflow and future-proof code. Please factor in responsive behaviour, fast...

    $101 Average bid
    $101 Avg Bid
    104 bids

    My website is already live and I need a fresh set of eyes to confirm that every key feature behaves consistently in Google Chrome, Mozilla Firefox and Microsoft Edge. I’m interested in a concise but thorough walkthrough that flags anything that breaks the user journey—whether that’s an element that refuses to load, a button that fails to respond, or a form that behaves oddly. Here’s what I expect from the engagement: • Reproduce everyday user flows across the three browsers and note any discrepancies. • Document steps to replicate each issue, adding screenshots or short screen-captures where helpful. • Provide a summary sheet that clearly separates critical blockers from minor annoyances. You’re free to use whichever testing extensions or...

    $46 Average bid
    $46 Avg Bid
    42 bids

    I already have a fully functional TravelNDC-compliant flight booking engine. The core modules for flight booking, fare-rule application, and the automated reservation emails to both the traveller and our admin mailbox must stay exactly as they are—no regressions. What I need now is an extension that lets users plan complex itineraries in one go. • Search: Accept up to six legs in a single request, surface layover options, and let travellers toggle flexible dates (±3 days) or lock in exact dates. • Filters: Add a class-of-service selector (Economy, Premium, Business, First) that threads all the way through to the NDC OrderCreate payload. • UI: Expand the current single-/round-trip form into a multi-city layout while preserving visual consistency and our ex...

    $149 Average bid
    $149 Avg Bid
    59 bids

    I need every video from a password-protected course saved locally for offline study. The site is a private learning platform that lets me in with a straightforward username-and-password login—no SSO or 2FA. Once inside, the lessons play in the browser; there’s no visible download button. Here’s what I’m after: a reliable, repeatable way to grab all the lesson videos in their original quality. A lightweight Python script that leverages yt-dl, ffmpeg, or a similar tool would be ideal, but I’m open to other approaches if they get the job done cleanly. Command-line is fine; a simple UI is a bonus. I’ll supply working credentials as soon as we start. The solution must: • Log in automatically with those credentials • Capture every video in the c...

    $38 Average bid
    $38 Avg Bid
    23 bids

    I’m ready to launch a fully-featured e-commerce site and I want it built on WooCommerce. I already run WordPress hosting, so you’ll be working directly in that environment to craft a polished storefront that feels trustworthy and modern from the first click all the way through checkout. Here’s what I need from you: • A custom, mobile-friendly design that showcases products clearly and keeps load times low. • Complete WooCommerce setup—categories, product pages, cart, checkout and user account areas configured and styled to match the new theme. • Payment gateway integration (Stripe, PayPal or similar) with test transactions to prove everything works before going live. • Essential security, SEO basics and performance tuning so Google and sh...

    $19 / hr Average bid
    $19 / hr Avg Bid
    262 bids

    I need a seasoned WordPress developer to craft a clean, corporate-style online presence for my import–export company. The site must include the following core pages: Home, About Us, Products, Export Countries, Certifications, Contact, and an Inquiry Form. All product copy, images, and export-focused layout elements should be populated by you so the site feels complete when handed over. Key requirements • Fully responsive design that loads fast on mobile and desktop • SEO-ready architecture, from permalinks to on-page headings • WhatsApp chat integration plus email-based contact and inquiry forms • Inquiry Form must feature a Captcha for spam protection and easily customizable fields for future tweaks • Corporate and professional visual approach&mdash...

    $106 Average bid
    $106 Avg Bid
    91 bids

    I have a high-resolution world-map PNG and need a lightweight JavaScript solution that automatically places each country’s flag icon on the correct coordinates, writes the country name just beneath the flag, and then animates a straight line that extends out from that label to the exact spot on the map. All data—flag assets, map image, and the coordinate list—will be supplied as soon as we start; you only need to wire everything together with clean, well-commented JS, HTML, and CSS. The animation must follow the Straight line style, play smoothly on page load, and remain responsive on modern desktop and mobile browsers. Similar working demo url will be given for reference to ideal candidate. Deliverables • One self-contained HTML file (plus any linked JS/CSS) ...

    $81 Average bid
    $81 Avg Bid
    19 bids

    Develop a wordpress site including design/template for I will attach the logo. site design must reflect the logo and its colour scheme Key features are Website must appear in English and Thai. Features to be is our competitive site.. please install a free plugin where the site content is changed english and thai flags clicked. use the same menu structure as and once the site is built if you give me a login, I will add the finalised content Contact us page to have google map of the location Make a booking to have an enquiry form that gets emailed We will need to integrate to our facebook and Instegram pages with key hash tags . we need a free plugin. we dont want to pay monthly subscriptions. show images and reels that are on facebook on the website via plugn. ...

    $166 - $332
    Sealed
    $166 - $332
    151 bids

    My existing Node.js workflow (built in n8n) stitches video clips with FFmpeg, runs OpenAI Whisper to generate transcripts, then saves the final file to cloud storage. automation needs design change and direct social upload facility. Everything eg code will be handed after i get the price in milestones activated.

    $23 Average bid
    $23 Avg Bid
    44 bids

    My site is already live on Webflow and the heavy lifting on the back end is done: an Edge Function in Supabase pulls and compiles data from several finance APIs, returning a clean JSON report. What I now need is the front-end layer that makes this data useful to visitors and stores key records back into Webflow. Here is the scope in plain terms: • Build a Reports page inside my existing Webflow project. • On the Reports page, render the report objects returned by the Edge Function . • Use the official Supabase JavaScript client (or lightweight fetch calls, if you prefer) to pull the data in real time and push any required fields back to Webflow’s CMS collections. • Keep everything responsive and stylistically consistent with my current Webflow design. Accep...

    $95 Average bid
    $95 Avg Bid
    47 bids

    I need a full-stack developer to build a browser-based webform application that is both secure and feature-rich. The form will span several pages, guiding users through a structured workflow while keeping performance snappy on Chrome, Safari and Edge. Access starts with a classic username-and-password login. Once inside, users will encounter dynamic tables they can edit, sort and run formulas against—think lightweight spreadsheet behaviour embedded directly in the form. Additional functions I must have: • File uploads that automatically compress images to keep storage lean and page loads quick. • Address-powered map generation showing a pinpoint or route as soon as the user types an address. • An AI helper that analyses early input (descriptions, addresses, e...

    $2850 Average bid
    $2850 Avg Bid
    223 bids

    I’m building ReFocus, a digital-wellness web app for students, and I need an experienced Node.js / Express / MongoDB developer (full-stack is a plus) to finish and fix the backend + role-based flows. Current status Frontend: React + Vite, deployed on Vercel (working). Backend: Node.js, Express, Mongoose, JWT auth, MongoDB Atlas. Basic auth routes exist but are incomplete/buggy. User roles: admin, coach, user. What I need Review and clean up existing backend code and API structure. Fix and finalize authentication & authorization: Login / register Email / password rules (simpler rules) Proper role-based access so each role only sees their own dashboard and pages (admin dashboard, coach dashboard, normal user pages). Implement / complete main features: User profile &...

    $184 Average bid
    Urgent
    $184 Avg Bid
    52 bids

    I already have a fully working browser-based script, but the registration page now throws an hCaptcha challenge that stops users from completing the flow. I’d like you to wire in a reliable, automated solution so the rest of my code keeps running exactly as it does today. My first choice is still hCaptcha, yet I don’t have an hCaptcha site key or secret set up and would rather avoid managing an account. Instead, please hook the script to a solver API such as 2captcha (or any comparable service you recommend) that can break the hCaptcha on the fly. The key requirements are: • The registration page submits successfully every time, even when hCaptcha appears. • The change is limited to the captcha section; no other functionality or UI should be altered. • Your...

    $2 / hr Average bid
    $2 / hr Avg Bid
    6 bids

    I need a simple, well-structured fitness tracker built with Django REST Framework on the back end and ReactJS on the front. Authentication should be classic email-and-password. Once signed in, a user must be able to create and view workout logs only; diet and sleep tracking can stay out of scope for now. Goals will be set by activity type—for example “swim 20 laps” or “cycle 15 km.” As users record workouts, they should see clear progress charts rendered with Chart.js. The layout has to stay clean and uncluttered; think intuitive navigation, restrained colour palette and responsive design. No deployment is necessary, just runnable source code and a short README explaining local setup (virtual env, dependency install, sample .env, and npm start). Primary deli...

    $108 Average bid
    $108 Avg Bid
    25 bids

    I'm seeking an experienced web developer to create a personal portfolio website. The site will primarily showcase my software development work and projects, and should include the following sections: - About Me - Projects - Contact - Skills The ideal freelancer will have: - Proven experience in building portfolio websites, especially for tech professionals. - Strong design skills to ensure the site is visually appealing and user-friendly. - Expertise in web development technologies (HTML, CSS, JavaScript, etc.). - Ability to create responsive designs that work on both desktop and mobile devices. Please share examples of similar work done.

    $90 Average bid
    $90 Avg Bid
    100 bids
    Fix CPT Permalink 404s
    6 days left
    Verified

    CPT Plugin conflict . We are using this plugin in wordpress to create post types : And have 9 different post types. I want to achieve a particular permalink structure that works fine with custom url under post type settings. but when we open pages with the updated slug pages shows 404 error. Experience with WordPress rewrite rules, CPT UI, and debugging 404 errors is essential. I’d like this fixed ASAP, so please let me know how quickly you can jump in and sort it out.

    $12 Average bid
    $12 Avg Bid
    23 bids

    Backend Developer I need a backend/full-stack developer to finish and deploy the backend and CRM dashboard for my real estate SaaS platform. The frontend is already built — this job is mainly backend development, integrations, and server deployment. Work Includes: Build and connect all backend APIs (auth, leads, properties, team, analytics). Integrate PayPal subscriptions + seat billing + webhooks. Connect CRM dashboard (Admin + User panels) to backend APIs. Set up Mapbox, WhatsApp API, AI assistant, push notifications, and cloud storage. Implement reporting system (weekly + monthly). Configure and deploy backend on a server (Render/Railway/AWS). Add all environment variables. Connect backend to frontend (Netlify) and complete final QA testing. Goal: A fully working backend ...

    $512 Average bid
    $512 Avg Bid
    183 bids

    I’m building the MVP for “XY Guide”, a mobile city-guide that blends a street map, points-of-interest highlights, and a light AR mode. I already have the POI dataset ready to go; what I now need is a React Native specialist who can wire up Mapbox so that the core map experience is production-ready. Your focus will be threefold: • Map view – initialise Mapbox GL in React Native, centre it on the target city, enable smooth zoom/tilt, and keep performance solid on both iOS and Android. • POI markers – ingest my existing JSON/GeoJSON dataset, plot each location with custom icons, and expose a callback so tapping a marker opens a placeholder details pane. • Simple AR mode – switch from the standard map to a basic augmented-reality overla...

    $548 Average bid
    $548 Avg Bid
    91 bids

    I’m building a project on Replit and need an engineer who already knows their way around API. The goal is to wire everything up so that, from within the Replit workspace, I can: • Schedule posts ahead of time (including captions and media). • Pull reliable analytics for each post and the overall account. • Surface user–engagement data such as likes, comments and follower changes in near-real-time. Your code should run natively on Replit without work-arounds, respect Instagram’s current rate limits, and be easy for me to extend later. If you have previous, hands-on experience doing similar integrations, let me know—the more specific your background with Replit and Instagram, the better. I’ll test the deliverables directly in my Replit p...

    $100 Average bid
    $100 Avg Bid
    27 bids

    Integrated user interface compatible with React.js website Introduction DO NOT APPLY UNLESS YOU ARE FULLY CONVERSANT WITH THIS TYPE OF SPECIFICATION. All AI generated or generic replies will be immediately dismissed and consideration only given to bespoke replies. Our tailored advertising platform empowers professionals to run, manage, and optimise campaigns with ease. Built for flexibility and performance, it puts brands in front of engaged audiences—locally, nationally, or internationally. The system must be built to interact seamlessly with website built in React.js for 11 different countries which include 10 different currencies and 9 different languages Key Benefits: • Highly targeted campaigns with geo-fencing • Flexible ad formats for desktop and mobile • Trans...

    $133 Average bid
    Guaranteed
    $133
    34 entries

    I need a skilled Python developer to create traditional number draw lottery software. Key Requirements: - Participants select 6 numbers - Implement features as per my guidelines Ideal Skills: - Proficiency in Python - Experience with lottery or gaming software - Strong attention to detail - Ability to follow detailed guidelines Please share relevant experience in your bids.

    $323 Average bid
    NDA
    $323 Avg Bid
    75 bids

    I need a new informational page added to our website. The content will consist of text and images. I already have a design/template for the layout. Requirements: - Add a new page as per my design/template - Integrate text and images based on provided content - Ensure the page is responsive and matches the existing site design Ideal Skills and Experience: - Proficiency in web development - Experience with php and nextjs - Strong attention to detail and design fidelity Please provide samples of similar work. Looking forward to your bids!

    $14 Average bid
    $14 Avg Bid
    50 bids

    I’m building “Tees That Talk,” a premium T-shirt brand that lets each buyer mint or claim an NFT as part of the purchase flow. The core stack is Solidity (ERC-721/1155), Thirdweb (React / ), Wallet Connect, and the Shopify storefront API. I already have the brand assets and basic Shopify theme; what I’m missing is an engineer who has actually shipped production-grade NFT contracts and can wire everything together end-to-end. From my own discovery work, NFT metadata management is likely to be our trickiest hurdle, so deep experience pinning images and JSON to IPFS or Arweave, handling provenance, and keeping metadata immutable after mint is essential. In parallel, I need clean, audited smart contracts, seamless wallet flows, and a checkout that feels native inside S...

    $33 Average bid
    $33 Avg Bid
    14 bids

    I’m starting from a blank slate and need a complete website that will let me roll out a brand-new service to the public. Because nothing exists yet, you’ll be handling everything from the initial concept all the way through launch. The finished site has to look polished, load fast on both desktop and mobile, and make it effortless for visitors to understand and use the service. I’m flexible on the tech stack—WordPress, a modern JavaScript framework, or a lightweight custom build—as long as it’s secure, easy for me to update later, and search-engine friendly. Deliverables • Wireframe or visual mock-up for approval • Fully coded, responsive website with the agreed-upon pages and features • Basic on-page SEO setup (titles, meta tags, cl...

    $438 Average bid
    $438 Avg Bid
    170 bids

    I’m putting together a small web application and need a solid email-and-password sign-in module. The tech stack is set: Java will drive the back-end, a compact C library (already written) handles our custom hashing routine, and the screens can stay simple with vanilla HTML/CSS. Here’s what I’m after: • Java endpoints for register, login, logout and session management, built with Spring Boot, plain Servlets or a framework you’re comfortable with. • JNI (or another clean bridge) that calls the provided C hashing library, with step-by-step build instructions. • Lightweight HTML pages—sign-up, sign-in, password reset—styled just enough to be readable. • Secure storage in MySQL or Postgres, using salted, hashed passwords. • ...

    $296 Average bid
    $296 Avg Bid
    22 bids

    Title: Web Specialist Needed – Strong Technical Skills + Fluent English Description: We are looking for a reliable and skilled web professional who can support us with various ongoing technical tasks. This role requires strong communication skills and solid experience in web technologies. Responsibilities: Perform website updates, optimizations, and troubleshooting Assist with frontend or backend tasks (depending on your skills) Communicate clearly and professionally in English Follow instructions accurately and deliver work on schedule Requirements: Fluent English (written and spoken) Strong technical skills in one or more areas: HTML, CSS, JavaScript WordPress, Webflow, or other CMS React, Node.js, or similar frameworks Basic server or hosting knowledge is a plus Atte...

    $32 / hr Average bid
    $32 / hr Avg Bid
    178 bids
    Micro-SaaS Tool Development
    6 days left
    Verified

    We’re looking for a freelance developer who can help us build small, fast, practical SaaS tools from idea to launch. You should be comfortable turning simple concepts into working products with clean code, clear UX, and reliable performance. Most projects will be short cycles, so the ability to ship quickly is important. Responsibilities Build end-to-end Micro SaaS tools using modern frameworks Handle front end, back end, and basic dev ops for lightweight deployments Translate requirements into technical scope and timelines Create simple, intuitive user interfaces Integrate APIs, third party services, and automation where needed Write maintainable code and documentation Test, debug, and iterate based on user feedback Support updates and improvements after launch

    $281 Average bid
    $281 Avg Bid
    46 bids

    Phase 1 starts with a deep dive into our current stack. The most urgent pain point is Twilio: messages simply never reach some users or reach them far too late, and the pattern seems tied to certain carriers. I need you to trace the root cause, implement a reliable fix, and document what changed. While you are inside the codebase, upgrade Node.js to the latest stable LTS, profile the app for slow-loading pages, and squash the intermittent login failures that keep appearing in our logs. I’m looking for clear, reproducible steps that prove each issue is resolved and a short write-up that flags any other weaknesses you spot. Phase 2 shifts to strategy. Our content team struggles with Prismic slices; routine edits turn into dev tickets. I want an informed recommendation on whether we s...

    $3909 Average bid
    $3909 Avg Bid
    64 bids

    We're working with a monorepo setup powered by 14, TypeScript, Supabase, and TurboRepo, configured for multiple subdomains. I’m seeking an expert to: - Build and structure the environments for staging and production efficiently. - Set up seamless development workflows integrated with our GitHub repository. - Configure automatic deployment to Vercel for both staging and production from GitHub. - Provide clear documentation of the setup process to ensure smooth hand-offs and future updates. - Include test cases demonstrating the deployment success. Looking forward to someone who has hands-on experience with monorepos, GitHub Actions for CI/CD, and Vercel deployment pipelines.

    $47 Average bid
    $47 Avg Bid
    21 bids

    I’m extending our in-house HRMS with aa pms fully-functional module and need a developer who can take them from specification to production-ready code, integrate them cleanly into the existing stack, and hand over well-documented deliverables. Performance Management The new performance module must go far beyond simple reviews. It should give managers and employees a structured flow for setting goals, tracking progress, and closing each cycle with data-driven reports. Concretely, I need: • Goal setting and tracking with bulk upload options for goals, reviews and 360-feedback questions • Task assignment plus automated check-in reminders • A complete CFR layer (Conversation, Feedback & Recognition) • Goal, competency and questionnaire libraries to spee...

    $104 Average bid
    $104 Avg Bid
    24 bids

    I need a polished, professional web presence that allows prospective clients to explore our consulting services with confidence. The site’s main purpose is to showcase what we do, who we help, and the value we bring, all wrapped in a clean, corporate aesthetic that speaks to C-suite decision-makers. Here’s what I have in mind: • WordPress will be the core platform so my team can update content easily, yet I still want the freedom of custom HTML/CSS to sharpen details and ensure we aren’t boxed into a generic theme. • The visual language must feel professional and corporate—think clear hierarchy, restrained colour palette, and typography that balances authority with readability. • Smooth navigation is essential; visitors should reach Services, About, ...

    $144 Average bid
    $144 Avg Bid
    182 bids

    I'm seeking an experienced Java developer to debug some back-end code. I'm encountering error exceptions that need to be resolved. Ideal Skills and Experience: - Proficiency in Java - Strong debugging skills - Experience with back-end development - Familiarity with logging tools and error tracking Please provide your approach and estimated time for completion.

    $10 / hr Average bid
    $10 / hr Avg Bid
    21 bids

    I’m extending our in-house HRMS with two fully-functional modules and need a developer who can take them from specification to production-ready code, integrate them cleanly into the existing stack, and hand over well-documented deliverables. Performance Management The new performance module must go far beyond simple reviews. It should give managers and employees a structured flow for setting goals, tracking progress, and closing each cycle with data-driven reports. Concretely, I need: • Goal setting and tracking with bulk upload options for goals, reviews and 360-feedback questions • Task assignment plus automated check-in reminders • A complete CFR layer (Conversation, Feedback & Recognition) • Goal, competency and questionnaire libraries to speed ...

    $139 Average bid
    $139 Avg Bid
    11 bids

    I want a Telegram bot that fully automates responses for a shopping flow. The bot must behave as an interactive store assistant inside any chat, guiding customers from their first query all the way through secure checkout without human intervention. Key features I need delivered: • Product search & smart recommendations based on user keywords or menu browsing • Seamless order placement, capturing quantity, variations, and delivery details inside the chat • Integrated payment processing so buyers can pay and receive instant confirmation right in Telegram Please build on the official Telegram Bot API and choose any reliable payment gateway that works globally and keeps PCI-compliant data off my server. The final hand-off has to include: well-commented source co...

    $202 Average bid
    $202 Avg Bid
    46 bids

    I need the full WhatsApp Business API stack configured around a new virtual number so I can run marketing campaigns directly from my CRM. The core goal is to automate three message types—promotional offers, product updates and event invitations—and have them reach contacts through reliably approved template messages. Here is what I expect to receive: • A fresh virtual number registered and verified for the WhatsApp Business API, including any Facebook Business verification steps that are required. • API endpoints activated and documented so my developers can trigger sends from the CRM. • Ready-to-use template messages for the three campaign categories, each submitted and approved. • An automation flow that links the CRM to WhatsApp—new or upda...

    $84 Average bid
    $84 Avg Bid
    17 bids
    Canva Bulk Video Template
    6 days left
    Verified

    We are looking for help creating a Canva Video Template, that works with Batch content integration Via Canva Bulk Create Plugin or a custom solutions as you see fit & can be executed in Canva. The exact style/theme we are looking for is the same used in this Youtube video : please check the questions displayed from 00:23:00 We are open for any suggestions if there are better solutions possible without CANVA. If you don't even understand what I'm looking for here, please don't blind bid.

    $130 Average bid
    $130 Avg Bid
    62 bids

    We are looking for a highly skilled Automation Developer / AI Engineer to build an end-to-end intelligent system for a digital news platform. The core task is to automatically fetch the latest breaking news from major international agencies (e.g., Reuters, AFP, AP News, etc.), rewrite the articles in a fresh, human-sounding, SEO-optimized style, generate catchy headlines, and publish them directly on my website. Additionally, I need a WhatsApp chatbot that allows me to manually send news updates, which the system will convert into a publish-ready article. 1. Automated News Aggregation & Publishing Fetch breaking news from multiple trusted news providers (Reuters, AFP, AP News, etc.) using APIs or scraping. Automatically rewrite each article using AI (unique, high-quality, SEO-friendly...

    $447 Average bid
    $447 Avg Bid
    114 bids

    I already finished a pixel-perfect, high-fidelity layout in Adobe Illustrator. The artboards are static—no interactions baked in—so I now need clean, responsive code that reproduces the design exactly in the browser. What I will hand over: • the original .ai file with all layers neatly named • a quick PDF export that shows intended breakpoints What I expect back: • HTML, modern CSS (Flexbox/Grid), and lightweight JavaScript only where strictly necessary • responsiveness that matches the PDF across desktop, tablet, and mobile • assets optimised and organised in a clear folder structure • code commented well enough that a future developer can extend it easily I am flexible on frameworks; plain HTML/CSS works, but if you prefer a utility libr...

    $264 Average bid
    $264 Avg Bid
    22 bids

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