25 Tools Every Software Developer Should Master
A list of useful tools for Software Developers that could make their lives easier
...Automation / Full-Stack Developer to build a self-hosted AI Business Operating System that automates email management, CRM, sales, marketing, customer support, and business workflows. This is a long-term project with multiple milestones. Phase 1 – Infrastructure Install and configure: Debian 12 Webmin Docker & Docker Compose Nginx SSL (Let's Encrypt) PostgreSQL PGVector Redis Python Node.js Git n8n Ollama Claude API OpenAI API Automated backups Monitoring Phase 2 – AI Knowledge Base Create a searchable AI knowledge base that can ingest: Websites PDFs Word documents Excel files SOPs Product catalogs Pricing Technical manuals Features: OCR Document parsing Chunking Metadata Embeddings Version control PostgreSQL + PGVector Phase 3 – AI Email Assist...
...used without permission. All registrations within the 90-day publishing timeline; so statutory damages and fee shifting are on the table. I need counsel admitted in Texas federal court who is comfortable taking the matter on a contingency basis. The immediate objective is to file suit for copyright infringement, and negotiate the strongest monetary recovery possible. I already have the dated Git history, HAR records, third-party time-stamped video records and other code-comparison analysis. The case is wilful (legal notices already sent from India - defendant denied and asked for evidence, once given, went silent) Defendant has deep pockets, has raised funding couple of weeks ago (in his personal-other company but he is personally liable under IP Infringement - Tort; as well ...
...Absolutely zero API keys, private keys, or RPC URLs are to be hardcoded. Use strictly typed . templates. Error Handling: Ensure no raw stack traces or internal contract reverts are exposed directly to the DOM without user-friendly, accessible sanitization wrappers. 5. Acceptance Criteria for Handover To consider this milestone complete and ready for payouts, you must deliver: A Clean Git Repository: Containing a logical commit history, free of clutter or backup files. 100% Type-Safe Connecting Code: Complete TypeScript coverage across all Web3 hooks and component properties. Accessibility Verification: Proof of keyboard navigation compatibility across the entire wallet connection and token purchase pipeline. The "Gain" Check: A fully functional localized staging enviro...
I’m looking for...required for a smooth deployment flow (dev, staging, production). • Collaborate with me to refine any missing feature details and map them into a clear sprint plan so that we keep velocity high. I can share the domain concept and user flows on kickoff; you’ll translate that into backlog tickets and begin shipping. Continuous communication (Git commits, brief daily updates) is essential because timing is critical. Deliverables: 1. Source code in a Git repository with readable commits. 2. A running demo on my chosen host (Heroku, Vercel, or similar). 3. A concise README explaining setup, env variables, and deployment steps. If you thrive in fast-moving projects and can demonstrate previous Node.js web applications you’ve built...
...its next phase and I need a seasoned Python developer to write production-ready machine-learning algorithms that slot straight into our existing codebase. The heavy lifting is pure code development—no data wrangling or system plumbing—so I expect clean, well-documented Python modules that import neatly and respect our current project structure. You’ll work against the latest commit in our private Git repo, build out the ML logic we’ve specced (classification and ranking models to start), and deliver passing unit tests so the CI pipeline stays green. Feel free to lean on scikit-learn, PyTorch, or TensorFlow if they keep things elegant and maintainable; the end goal is fast, accurate models that can be called from Dynamo’s core services with minimal o...
...interfere with production resources. • Clean deployment of the site’s codebase and assets to that new environment. I’m open to EC2, S3, a managed database, or any combination you recommend, as long as the final result matches the live site’s behaviour. • Best-practice security (private key access, least-privilege IAM roles, HTTPS). • A straightforward way for me to push updates to staging—Git-based or any other repeatable method you suggest. • Written instructions (or a small walkthrough call) so I can reproduce the process in the future. If additional AWS services such as RDS, CloudFront, or Route 53 will make the setup smoother, please outline that in your proposal. I’m happy to follow your lead on the exact architectur...
I have a functioning website whose code base was generated with CODEX. The underlying logic works well, yet the front-end experience needs to be friendlier and fully accessible. My immediate goal is to refine the use...tool—whichever fits best with the existing CODEX stack. • Light navigation tweaks: while search is the priority, feel free to suggest small menu or breadcrumb adjustments if they improve overall clarity. • Clean, maintainable code: keep the repository tidy, document any new components, and ensure future updates can be handled smoothly. You will gain full access to the current CODEX-generated repo in Git. Please confirm your familiarity with accessibility best practices and outline your preferred search implementation so I can grant credentials and...
I’m planning a new utility-style Android application and want to team up with a developer who can turn the concept into a polished product. The goal is a single code-...basic analytics hooks and crash reporting for post-launch insight. What I’ll supply • Initial sketches, user stories, and brand assets. • Timely feedback and access to any third-party APIs we decide to integrate. Ideal partner Someone comfortable optimising for multiple form factors, familiar with Jetpack components, and open to periodic strategy calls. Deliverables 1. Source code in a private Git repo. 2. Installable APK/AAB ready for Play Store submission. 3. A concise setup guide and README. If this sounds like a project you’d enjoy, tell me about a recent utility app you buil...
I’m ready to kick-off the utility-focused iOS app we spoke about and would like you to tak...we outlined during our earlier chat, wired up to real data and thoroughly tested. • Basic local notifications, error handling, and settings screens where relevant. • Clear build/run instructions and inline comments so future maintenance is easy. Acceptance criteria 1. The app passes TestFlight review with no critical crashes or UI regressions. 2. Source code is handed over in a private Git repo with commits logically organized. 3. A short README explains setup, third-party libraries (if any), and how to trigger key functions. Timing and milestones are flexible; let me know your estimated schedule and we’ll lock in deliverables accordingly. Looking forward ...
...marketplace trust. Deliverables I expect: 1. Production-ready website with an admin dashboard for user, payment, and dispute management. 2. Android app (Kotlin or Java is fine) mirroring all user-facing features of the site. 3. RESTful API documentation so the system can be extended later, plus basic technical documentation for deployment. 4. Clean, well-commented source code handed over via Git. Acceptance criteria: a test transaction using each payment method must move through deposit, hold, dispute, and release states without manual intervention, and I must be able to view logs in both the admin panel and the user’s transaction history. I’m flexible on the tech stack—choose whatever language and framework you’re fastest and most confident...
...Spring Boot, REST APIs, and either React or Angular. The ideal candidate must have successfully completed Karat certification/assessment and should have prior experience delivering corporate training to professionals. Required Skills: Core Java & Advanced Java Spring Boot, Spring MVC, Hibernate/JPA RESTful API Development React.js or Angular HTML, CSS, JavaScript, TypeScript SQL (MySQL/PostgreSQL) Git, Maven/Gradle Microservices (preferred) Good understanding of software development best practices Mandatory Requirements: Karat Certified (or successfully completed the Karat assessment) Proven experience as a corporate trainer or technical mentor Strong communication and presentation skills Ability to conduct interactive virtual training sessions Experience preparing hands-...
I'm seeking assistance with setting up a GitHub repository for a programming assignment. Ideal skills and experience: - Proficiency in Git and GitHub - Experience with repository setup and management - Familiarity with command line and version control concepts Looking for someone who can guide me through the setup process or set it up for me. Please provide examples of previous work.
I am looking for a skilled Frontend Developer to build clean, responsive, high-performance interfac...Zustand) Ensure cross-browser compatibility and mobile responsiveness Write maintainable, well-documented code Must-have skills: 5+ years with React.js and modern JavaScript (ES6+) Strong HTML5, CSS3, Tailwind CSS Experience with TypeScript and REST API integration Solid understanding of responsive/mobile-first design Nice to have: , React Native, or Redux experience Familiarity with Git and CI/CD workflows To apply, please share your portfolio or GitHub, a short note on relevant React work, and your availability. Shortlisted candidates may be asked to complete a small paid test task. Skills / tags to add: React.js, JavaScript, , TypeScript, HTML5, CSS3, Tailwind CSS, Redux
...working, demonstrable environment. Key elements I expect • AWS foundation (networking, identity, security, cost-aware resilience) • Kubernetes cluster production-hardened for multi-service workloads • Jenkins pipelines covering build, test, container image creation, and progressive delivery • GitOps model for cluster state and app releases • Infrastructure defined in code and stored in Git (CloudFormation or Terraform—your call) • Centralized logging, metrics, alerting, and dashboarding wired into the cluster • Automated security scanning (images, code, dependencies, and runtime) • Blue/green or canary style rollouts with rollback safety • Clear runbooks and README-level documentation so another engineer can re...
...icons and graphics so the interface feels modern and consistent across all pages. • Feature expansion: add a couple of small but useful data-display features (for example, quick sorting, simple filtering, or basic drill-downs). I’m open to your suggestions on what will boost usability the most. The current codebase is clean Flask with Jinja templates, Bootstrap, and Chart.js. You’ll work in a Git branch, keep commits tidy, and make sure existing routes, authentication, and API calls remain untouched. Deliverables: 1. Updated templates, static assets, and CSS/SCSS files. 2. New or modified Flask routes / JS snippets for the added features. 3. Brief install & test instructions so I can run a quick `flask run` and see everything working. If you have an ...
...PHP/Laravel or Node/React with a MySQL or Postgres database are perfectly acceptable. The finished site should be easy to host on a standard VPS and ready for Google Search Console submission the same day we launch. Acceptance criteria 1. Desktop and mobile PageSpeed score 90+. 2. All specified features working end-to-end and demoed on your staging server. 3. Clean, documented code handed over in a Git repo. 4. Final migration to my server plus one week of post-launch support. I will award the project to the freelancer who can commit to the shortest realistic timeline and the most competitive price while still meeting every point above. Please outline your proposed stack, development schedule and any similar work you have live right now when you place your bid....
...modern JavaScript or Python frameworks—React, , Node.js, Express, or Django, for example), and agree on a clean architecture that’s easy to scale and test. You’ll handle both front-end and back-end coding, design a well-structured database, and set up CI/CD so each push automatically deploys to a staging environment. Deliverables I’d like to see at each milestone: • Source code in a private Git repository with clear commit history • Documented REST or GraphQL APIs • A responsive UI that works smoothly on desktop and mobile browsers • Automated unit and integration tests with coverage reports • Deployment scripts or Docker files plus instructions for production rollout Final acceptance criteria: the app passes all agreed...
...plan to keep inference costs under control, and how you will secure the API keys. Because I need the first public build live within a month, I’m looking for someone who is comfortable setting clear milestones, moving fast, and handing off clean, readable code that I can maintain in-house after launch. Deliverables (all source code and assets): • Fully functional FlutterFlow project synced to my Git repository • Firebase backend configured for Auth, Firestore, and any Cloud Functions used for AI calls • At least one polished AI feature (e.g., chat assistant, content generator, or tailored recommendation engine) demonstrated on-device • Short hand-off documentation covering environment setup, deployment, and ongoing AI cost management Send a deta...
...Containerised deployment (Docker) and CI/CD pipeline for smooth staging and production releases. • Strong security practices—OAuth where supported, encrypted credentials, and rate-limit handling. What I will provide • Access keys for sandbox environments. • Basic UI wireframes and branding guidelines. • Sample product datasets for testing. What I expect to receive • Source code in a private Git repository. • A running demo on a cloud instance. • Setup documentation in English and Spanish. • Two short video walkthroughs (one per language) showing the main flow. Spanish communication is a must because most end users are Latin-American sellers. If you have proven experience with multi-vendor SaaS platforms, marketplace API...
...Stripe) and channel-manager/OTA APIs Requirements: Strong React/ and Node.js/Express experience Solid PostgreSQL (schema design, migrations, query optimization) REST API design, JWT auth, multi-tenant/role-based access control Experience integrating third-party APIs (SendGrid, Twilio, payments) Comfortable with Linux deployment (nginx, PM2, Let's Encrypt/HTTPS) Clean, well-documented code and Git workflow Nice to have: Airbnb/ API integrations, Stripe payments, TypeScript best practices....
...with kick-off to full-time whistle • Real-time ball physics tuned for mobile performance • Smart outfield AI plus dedicated goalkeeper logic • Passing, shooting, player switching and goal detection • Responsive virtual joystick controls (Android & iOS) • Dynamic third-person camera that adapts to play • In-match UI elements: timer, score, pause, etc. • Clean, modular C# codebase under Git—full source transferred to me Tech expectations Unity 6 proficiency is non-negotiable, and prior mobile football work will put you at the front of the queue. Optimisation for both iOS and Android is essential. Long-term roadmap Once this slice is solid, I’ll roll straight into Career Mode, Stadium Builder, Club Management, Tr...
...the backend. Your main task will be to implement and refine our internal APIs so the existing frontend can finally talk to the server smoothly. You will be shaping the data flow between the client app and the database layer: creating clean, well-documented endpoints, handling authentication hooks already stub-built, ensuring robust validation, and returning responses the UI expects. I am using a Git-based workflow and will grant access to the repo plus a small set of Postman collections that describe the calls I need. Key deliverables • Fully working internal API endpoints that mirror the current Postman specs • Brief inline documentation and a short README so future contributors can extend the service • A set of unit tests proving each endpoint’s hap...
...local-first, developer-grade automation. You describe an automation in plain English and RailCall builds a real, governed workflow that runs on your own machine - not a vendor cloud. Nothing executes until a human approves it, and every run is sealed with a signed receipt you can verify offline. Free tier: 500 flows/month, no card required. Site: - audience is developers (CLI, git, MCP users). THE CONTRIBUTOR REWARDS PROGRAM (build your strategy around this) We give 10% of RailCall's monthly revenue back to our top community contributors every month, ranked on a public scoreboard. The better your contributions rank, the larger your share of the pool. Your strategy should show how to turn this program into a self-reinforcing growth engine. WHAT YOUR ENTRY MUST INCLU...
...Develop RESTful APIs for frontend and backend communication. Build a searchable knowledge base. Implement user authentication and role-based access. Optimize application performance and security. Test the application before final delivery. Required Skills AI application development. Python or Node.js. React or Next.js. Experience with LLM API integrations. PostgreSQL or MySQL. REST API development. Git. Preferred Experience Previous AI chatbot or SaaS projects. Knowledge of retrieval-augmented generation (RAG). Docker and cloud deployment experience. Strong communication skills. Deliverables Fully functional AI web application. Complete source code. Installation and deployment documentation. Basic user documentation. Bug fixes during the agreed review period. Budget USD $1,000&n...
...Participate in code reviews. Troubleshoot and resolve software issues. Optimize application performance and security. Collaborate with cross-functional teams using Agile methodologies. Required Skills 4+ years of professional software development experience. Strong knowledge of JavaScript and TypeScript. Experience with React. Experience with Node.js and Express. SQL or PostgreSQL database experience. Git and GitHub. REST API development. Docker fundamentals. Excellent problem-solving skills. Strong written English communication. Nice to Have AWS or Azure experience. CI/CD pipelines. Kubernetes. GraphQL. Automated testing with Jest or Cypress. Employment Details Remote position. Full-time. Flexible working hours. Long-term collaboration. Compensation USD $35–50 per hour (d...
...fitness topics and a clear disclaimer (not medical advice). Include your approach to cost control (caching, rate limits per user). CRM backend (admin panel): web dashboard for the client to manage users, view subscription status and revenue, send announcements/push campaigns, edit workout & meal templates, and view basic analytics (retention, DAU, churn) Deliverables: Source code in a private Git repo (full ownership transfers to us) Deployed backend + published apps in both stores (we'll provide developer accounts) Basic documentation (setup, architecture overview, how to edit templates) 30 days of post-launch bug fixing included...
...smooth 60 fps or better on a multi-screen setup running native 4 K. • Tooling: Blueprints are welcome, but any heavy lifting that impacts frame time must be implemented in C++ or optimized Niagara systems. • All shaders, materials, and particle systems should be authored with scalability tiers so we can adjust quality on lower-spec trainer rigs. • Source control: you will commit to our private Git repository; regular, small merges are preferred over large drops. Deliverables 1. UE5 project with: • Real-time sun & moon system (accurate azimuth/elevation calculations). • Seamless skybox and cloud layers that blend across the full 24-hour cycle. • Weather modules for rain, fog, and snow, each switchable at runtime via exposed...
...web-based or baked into the app—should let me add products, change pricing, and view orders in real time. Deliverables 1. Universal codebase for iOS and Android (React Native, Flutter, or similar) fully compiled and deployable to App Store and Google Play 2. API documentation or Postman collection covering every endpoint 3. Tested payment flow in sandbox and live modes 4. Source code in a private Git repo with clear build instructions 5. A short video walkthrough of the finished app Acceptance criteria • App installs and opens without crashes on recent iOS and Android devices • Catalog, cart, and checkout work end-to-end, processing at least one live transaction • UI matches supplied Figma designs within reasonable pixel tolerance • All text and ...
...analytics and reporting pipelines so end-users can visualise key metrics in-app. • Wire the application to several third-party services (payment, email, and one proprietary REST API) with clean, maintainable integrations. Tech landscape Frontend will be React with modern hooks; backend services will run on Node/NestJS, exposing REST (and possibly GraphQL) endpoints backed by MongoDB. TypeScript, Git, and CI/CD pipelines (GitHub Actions) are already in place. Acceptance criteria • All listed features work end-to-end and are covered by unit/integration tests. • Code follows NestJS & React best practices, fully typed. • API documentation is generated (Swagger/OpenAPI). • Deployment scripts run successfully on our staging server. If you have 5+ years d...
I’m ready to build a native iOS app and need an ex...handle the entire build in Swift/SwiftUI within Xcode, implement core functionality, integrate any required APIs, test across current iPhone and iPad devices, and prepare the final App Store submission package (screenshots, description, provisioning profiles). Deliverables should include: • A short discovery report summarising requirements and suggested architecture • Source code in a private Git repository with clean, documented commits • A fully functional TestFlight build for review • Final App Store-ready build and deployment support If you can map out what you need from me and then turn that into a polished iOS application, I’d love to hear how you would approach the project and an es...
...sources, and patch them without introducing regressions. 2. Clean up the React components so each interface feels consistent and responsive. 3. Harden the Node.js API layer—proper error handling, logging, and unit tests are essential. 4. Work with me on a rolling basis; please state your hourly, daily, or weekly rate so we can choose the most practical model. 5. Commit all changes through Git with clear, descriptive messages and open pull requests for review. Acceptance criteria • Zero critical crashes after a full testing cycle covering the booking, questionnaire, and certificate flows. • All three interfaces load without visual or functional defects on the latest Chrome, Firefox, and Edge. • Automated test suite passes in CI before any deploy...
I am looking for a skilled Frontend Developer to build clean, responsive, high-performance i...Integrate REST APIs and manage app state (Redux / Context / Zustand) Ensure cross-browser compatibility and mobile responsiveness Write maintainable, well-documented code Must-have skills: 5+ years with React.js and modern JavaScript (ES6+) Strong HTML5, CSS3, Tailwind CSS Experience with TypeScript and REST API integration Nice to have: , React Native, or Redux experience Familiarity with Git and CI/CD workflows To apply, please share your portfolio or GitHub, a short note on relevant React work, and your availability. Shortlisted candidates may be asked to complete a small paid test task. Skills / tags to add: React.js, JavaScript, , TypeScript, HTML5, CSS3, Tailwind CSS, Redux
...React/Next, Laravel, Django, or comparable) with REST or GraphQL APIs you can maintain indefinitely. • Advanced search and filtering—ElasticSearch or similar—so results load under a second even at scale. • Secure authentication, role-based access control, and GDPR-compliant data handling. • Fully responsive front-end, cross-browser tested, and optimized for Core Web Vitals. • Source code in Git, CI/CD pipeline to my cloud host, and clear documentation so future devs can jump in. Deliverables 1. Production-ready website deployed on my server/domain. 2. Admin and employer dashboards matching the feature set above. 3. Source code repository with readme, environment setup, and database schema. 4. Post-launch: lifetime support agreement...
We are looking for an experienced developer to deploy and test a new scheduling platform. The scope includes application deployment, configuration, bug fixing, functionality testing, performance validation, and ensuring a smooth production launch. The ideal candidate should have experience with web application deployment, QA testing, troubleshoo...configuration, bug fixing, functionality testing, performance validation, and ensuring a smooth production launch. The ideal candidate should have experience with web application deployment, QA testing, troubleshooting, and resolving issues before release. Project Skills: Deployment, QA Testing, Web Application Testing, Bug Fixing, Performance Testing, API Testing, DevOps, CI/CD, Linux, Docker, Git, Node.js, PHP, MySQL, AWS, Azure, Troubl...
Seeking Versatile Web & Mobile Developer (WordPress, Shopify, PHP, Angular, React, Node.js, React Native, Flutter) We are looking for an experienced Full Stack Web & Mobile Developer to join our team on a long-term freelance basis. The ideal candidate should have hands-on experience developing WordPress and Shopify websites, modern web applications, and cross-platform m...mobile apps. You will work on new projects, feature enhancements, API integrations, bug fixing, and ongoing maintenance while collaborating with our team to deliver high-quality solutions. Project Skills: WordPress, Shopify, PHP, Angular, React.js, Node.js, React Native, Flutter, JavaScript, TypeScript, HTML5, CSS3, MySQL, MongoDB, REST API, API Integration, Mobile App Development, WooCommerce, Git, Full ...
AI-Powered Chatbot Using LangGraph Developed an intelligent AI chatbot capable of handling natural language conversations and providing context-aware responses in real time. The chatbot leverages advanced Large Language Models (LLMs) and LangGraph workflows to manage multi-step interactions, maintain conversation context, and deliver accurate answers to user queries. Th...• Intelligent query processing and response generation • Multi-step workflow orchestration using LangGraph • FastAPI-powered backend for high performance • Responsive and user-friendly web interface • Docker-based deployment for scalability and portability • Secure API integration and environment management Technologies Used: Python, LangGraph, FastAPI, Groq LLM, HTML, CSS, JavaScript, Doc...
...and custom reports. Budgeting and Forecasting should be woven into the module so that each lab project or test batch shows projected versus actual spend and upcoming resource requirements. Core tech will be the usual stack—Python, Frappe framework, ERPNext API hooks, MariaDB, and a little client-side JavaScript where it improves the UI. I already have a staging server; push your work there via Git so we can review it together. Deliverables • Installable Frappe app with all doctypes, scripts, and page builders • Budgeting & Forecasting logic tied to lab projects and items • Two custom reports (budget variance, consumption forecast) • Basic test suite plus setup/seed data so I can demo instantly I’ll consider the job complete once th...
...well-documented Kotlin or Java code that can be handed over seamlessly. • Connect to the back-end APIs that I will provide (REST/JSON) and handle local data caching for offline use. • Implement standard security best practices and follow the latest Android design guidelines so the UI feels familiar to users. Deliverables I’ll review 1. Interactive APK for iterative testing. 2. Source code in a Git repository with meaningful commit history. 3. Brief setup notes and a one-page architecture overview. 4. A short hand-off call or video walkthrough at the end. Timeline matters: once we agree on milestones I expect timely builds and candid status updates every few days—nothing lengthy, just enough so I always know what’s done and what’s ...
...software development - Proven expertise in data science, Python and SQL - Experience in API integration - Based in Mumbai - Experienced in building data-driven solutions and implementing algorithms - Skilled in Windows desktop application development - Familiarity with machine learning frameworks such as TensorFlow or scikit-learn - Experience with project management and version control tools like Git - Ability to create data visualizations and dashboards - Experience in writing unit tests to ensure code quality - Skilled in optimizing applications for better performance - Proficient in designing user-friendly UI/UX for desktop applications - Knowledge in developing cross-platform applications - Ability to integrate third-party libraries and tools - Knowledge in implementing secu...
...cohorts, retention curves) with basic filtering and date ranges • Simple admin panel to manage data sources and view system health • Responsive UI so the same codebase serves desktop and mobile users Acceptance criteria • A deployed MVP reachable on a public URL (cloud of your choice) • Demo dataset demonstrating at least three visualizations on the dashboard • Code pushed to a private Git repo with clear README for local setup When you reply, please highlight similar analytics or SaaS projects you’ve delivered and note any relevant stacks you feel comfortable with (React, Vue, , Django, Node, Go, Postgres, ClickHouse, AWS, GCP, etc.). I care less about the specific language and more about your experience shepherding an analytics idea from...
...mobile) with secure sign-up/login. • Dashboard for Customers to build, brand, schedule, and manage quizzes. • Admin panel for user management, leaderboard review, and reward approval. • Participant interface with real-time timers, instant feedback, and a profile showing accumulated points. • Leaderboard that updates as soon as the admin confirms the results. • Source code in a private Git repo, basic README, and deployment script. Please outline your approach to the timer logic, anti-cheating safeguards, and the reward approval workflow when you respond, along with milestone estimates for an MVP followed by the fully featured release. Clarifications / Answers 1. Branding Each customer/event should support its own branding: logo, colors, b...
I’m rea...– just keep it clean and well-documented) • Front-end checkout integration that matches our current UI and supports UPI, card, and wallet flows seamlessly • Webhook endpoint for payment status updates, retries, and reconciliation • End-to-end sandbox tests, followed by production roll-out and proof of successful live transactions • A short hand-over guide and commented code pushed to our Git repository Acceptance Criteria Payments complete successfully across all three methods, signatures validate, duplicate callbacks are handled idempotently, and the user never sees raw error codes—only friendly messages and updated wallet balances. If you’ve integrated Razorpay into high-traffic apps before and can turn this around ...
...are looking for someone who can help maintain, improve, and evolve an existing platform over time. ## Project Status The project is already well established: * Existing iOS application * Existing PHP backend * MySQL database * Development, Staging, and Production environments * CI/CD pipeline with automatic deployment * Git-based development workflow ## Tech Stack * iOS Development * PHP (Yii2 experience is a strong advantage) * MySQL * Linux Server Environment * Git * CI/CD ## Responsibilities * Handle weekly development and maintenance tasks * Implement new features and business requirements * Maintain and improve the iOS application * Refactor and improve the PHP backend when appropriate * Database modifications and optimization * Investigate and fix bugs * Maint...
...testing before every delivery. Providing a summary of all completed work for each phase. Required Skills 5+ years of professional PHP experience. Strong experience with large legacy codebases. Excellent refactoring skills. Experience improving production systems without breaking existing functionality. SOLID Principles. Design Patterns. Clean Architecture. Yii2 experience is highly preferred. MySQL. Git. Strong debugging and troubleshooting skills. Working Model This project will be completed in multiple independent phases. Each phase will have: A clearly defined scope. A specific objective. A review before implementation. A review after completion. The workflow will be: Receive the assigned phase. Review the implementation plan. Implement the required changes. Perform compr...
...Forgot Password with Email OTP. - Improve Admin Panel. - Maintain database and APIs. - Deploy and maintain the application. - Write clean, scalable, and well-documented code. - Test features before delivery. - Coordinate with us for future feature development. ## Required Skills - Strong React / knowledge. - Node.js & Express.js. - PostgreSQL. - JWT Authentication. - API Integration. - Git & GitHub. - Deployment on VPS/Cloud/Linux/Windows Server. - Debugging and problem-solving. ## Nice to Have - Experience with Dealer Management Systems, CRM, ERP, or Inventory software. - Experience with email services and security best practices. - Knowledge of performance optimization. ## Engagement - Long-term project. - Available for future maintenance and feature development. - ...
...using the MERN stack. My focus is on creating clean architectures, secure backend systems, and responsive user interfaces that are easy to maintain and extend. ### Core Skills * React.js * JavaScript (ES6+) * Node.js * * MongoDB & Mongoose * REST API Development * Authentication (JWT) * Role-Based Access Control * Cloudinary & Multer File Uploads * CRUD Applications * MVC Architecture * Git & GitHub ### Types of Projects I Build * consumer data Management Systems * Admin Dashboards * Inventory Management Systems * CRM Applications * Business Management Software * E-commerce Backends * Authentication Systems * File Upload & Media Management * Custom REST APIs * Full-Stack MERN Applications ### What You Can Expect * Clean and well-structured code * Scalable p...
...stable) as the framework • Responsive layout that looks perfect from mobile to desktop • High-resolution gallery with lightbox or similar for project photos • SEO-ready metadata, open-graph tags, and clean URLs • Google Analytics (or Plausible) integration • Deployment to Vercel or another modern host with a one-click workflow Deliverables • Fully documented codebase in a private Git repo • Styled, production-ready pages: Home, Portfolio/Gallery, Contact (plus any approved extras) • Optimised images and SVG icons • Brief hand-over guide outlining how I can add new projects myself Acceptance criteria • Lighthouse performance score ≥ 90 on mobile and desktop • No CLS or layout shifts on first render ...
...search and category filters. • Live chat support: real-time messaging that links to our Zendesk account (or an equivalent Firebase/Socket setup if you have a better idea). Customers should receive push notifications when agents reply. Nice-to-have for phase two is order tracking, so structure the code and database calls with that future module in mind. Deliverables 1. Source code in a private Git repo with clear commit history. 2. Testable builds (.apk and TestFlight link). 3. Brief setup documentation covering environment, build steps, and how to point the app at staging vs production endpoints. 4. Final signed releases ready for App Store and Google Play submission. Acceptance • Smooth 60 fps scrolling on a device as old as iPhone 8 / Android 10. • C...
I need a web developer who can create a modern, minimalist site that becomes the central hub for our college program’s upcoming events. The key objective is to showcase event details clearly and allow visitors to register through an intuitive online form that feeds directly into our internal spreadsheet or database. The sit...package) that passes mobile-first checks. • A working registration form storing submissions to a Google Sheet, database, or similar. • Basic CMS or markdown instructions so staff can edit event dates and descriptions without touching code. • Brief walkthrough or screen-share to ensure I can manage the essentials. If this sounds straightforward to you and you’re comfortable collaborating through Git, Figma, or any workflow you ...
...dashboard that flags non-conformities and stores evidence for later audit. I’ll supply the civil engineering standards and the specific formulas the reckoner should reference; you convert that into a clean, offline-capable Flutter interface with local data storage and the ability to export PDF or Excel summaries. Deliverables 1. Flutter/Dart source code (well-documented, pushed to a private Git repo). 2. Tested release builds (APK + iOS IPA/TestFlight). 3. A brief hand-off session so I’m comfortable maintaining the codebase. Acceptance criteria • All three core functions operate without crashes on mid-range Android and recent iPhones. • Data persists offline and syncs when connectivity returns. • Generated reports match the standards I pr...
A list of useful tools for Software Developers that could make their lives easier
Step by step guide for using MySQL database engine from Node.js