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    625,728 backend development jobs found, pricing in USD

    I need below APIs: 1) API which will return all coins list with their price like below: 2) API which sends me wallet addresses for selected coins 3) Webhook which sends confirmation once payment is received. It must be json API to be used in all programming languages (PHP, WordPress, Node.js, Python, Ruby on Rails, C++, Angular, JavaScript, React.js, Java, mobile apps languages, and others). A reference platform would be Delivery must be within 48 hours.

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    Development of an online brouchure

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    I am looking for a European or American who is good at English with some knowledge of Web development. Need a long-term relationship and salary will be monthly-based. Not Asian!!!

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    I need to hire 3-4 Strong Front-End developers for a 6-8 month project. Must be able to do 20+ hours per week. Need very strong Javascript/Typescript CSS/LESS/SCSS, responsive skills. Backend for Frontend is also very important.

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    Looking for a writer able to understand the impact of Gentrification, Eminent Domain, Property and Real Estate investing, COOPeratives and Share structures, Tenant Unionizing, and Assumption of Liabilities and Risk able to support the editing of a draft press release that needs to be edited and published within 24 hours! Ideal candidate wil...and Assumption of Liabilities and Risk able to support the editing of a draft press release that needs to be edited and published within 24 hours! Ideal candidate will be reading the crude write up and editing it into a better drafted release to be published! Must have financial as well as real estate accumen in understanding the importance of rejuvenation and tenant unions within community development and growth to support the position of the ...

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    Preferred tech stack: Web : React, NodeJs and MySql Mobile: React Native or Flutter (Performance is the key factor) Requirement: to build both front and backend of the project from the scratch. The app will have 2 types of user login 1. organiser 2. Attendee Organiser will have a Monthly and daily calendar view where he can view all his appointments, attendees for the slot. Organiser can have one or more attendees for the slot Organiser can add the attendees to the slot. Appointments can be one time or recurring Appointments can have one or more attendees Attendees can also book the slot from available organisers. Email confirmation Mobile Notification / reminder to the slot Payment due reminder for both organiser and attendee Request payment button for the organiser to ...

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    I want to make a website that would be composed of the following: - login page for members - database viewer for the sales orders the database viewer should look like Google sheet I will provide the design as a UI pictures however i am looking for a full stack developer Arabic language mastery is a must

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    ...the project manager and blockchain developer to ensure proper and hassle-free implementation. To be successful in this role, you will need to have excellent visual design skills and be proficient in front end web development, AWS, and node.js. Web Designer/developer Responsibilities: Designing sample pages including colors and fonts. Preparing design plans and presenting the website structure. Create Responsive landing page Utilize node.js to collaborate with blockchain developer Web Designer Requirements: A relevant diploma in a related field. Proficiency in front-end development web programming languages such as HTML and CSS, JQuery, javascript, and node.js. Experience with AWS Proficient understanding of cross-browser compatibility issues. Excellent visual design sk...

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    ...as users and also others which admin requires to manage complete contents in cms. What you will delivery / do ? Design basic design ( no tough design very simple HTML5 Latest light weight because we will be covering lots of records to fetch and traffic in future ) we will be using pre defined pages from themes / designs available with little tweaks to look not same. Secure Object oriented Development based on framework like CodeIgniter or Laravel ( prefer CodeIgniter ) Database design with careful steps an security measurements CMS API MOBILE APP, suggest me which language / framework to use and why ? and what's beneficial on long run. ( I will help you to publish app ) as I have published many apps for clients already Note: You will not disclose project in any of you...

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    Hello I need a developer for sneaker project

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    looking for a develop to work with us to create cheats for a russian video game . A secure licencing panel must be created for distribution of the cheat, we have alot of clients in place. We are happy to work with a new developer and have a large testing group inplace to test the updated and development.

    $250 - $750
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    I need a professional software developer to build me lead generating software that work perfectly. Tell me is it what you can build without error? What process will you use to get this done?

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    Only expert in custom theme development!!! Do not bid company or agency or Shopify generalist! We have a ongoing custom shopify theme development project. Unfortunately, the developer had personal thing so that he should leave. We need a Shopify expert who had a lot of experience in custom theme development using liquid code. Please attach the evidence that you developed custom theme from scratch in the past. Only serious candidates will be considered for future long term job. Regards

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    Technologies Used: Ruby on Rails HTML, CSS, and JavaScript Sendgrid Heroku Rspec/ Capybara Git Codeship CI/CD PostgreSQL (Database) Redis AngularJS. Qualifications include: · 5+ years of professional experience in backend software development · Strong experience with complex Rails applications · You thrive in a fast-paced, ever-changing environment and love to partner with smart hard-working people through new opportunities and growth.

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    ooking for someone to help me develop a Zoom like invitation system for a Django project I am working on. I have the backend built (based off of Red5). I originally had a front end that worked off of user accounts but I want to scratch that and create the following. Basic features needed: Invitation system that allows user who creates room to input email addresses and send invite to join room/session. System that allows the creator of the room to accept users as they join. Scheduling system that allows creator of the room to set time room becomes active and send invitations early.

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    Dear all We're looking for an Blockchain/NFT/Smartcontract developer, who can help us by integrating following things on our NFT website: - NFT Mint Engine (ETH Network) - Smart Contract Development for Minting - Wallet Connection - Whitelist function - AirDrop function - Reveal Mode - PreSale Mode - Reserved NFTs Looking forward to hearing from you. Best regards

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    Azarc is looking for a highly-skilled, self...management, project management, and QA to meet goals and deadlines Write well thought out, researched, readable, simple, maintainable code which the rest of the team will enjoy working with Take ownership of the project Technical Roadmap, specifications, release cycles, and features to ensure all applications and components and fit-for-purpose and meet specifications. Provide estimations of development effort to be provided as feedback to the Product Team, and Management Ensure project documentation is completed on time and maintained as part of the project lifecycle Key Skills Required: The ideal candidate has in-depth knowledge of, and experience working with the following methodologies and technologies: Golang TDD Docker AWS Gith...

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    Hey everyone! I'm looking for a solid flutter dev with an affinity with design to develop a breakthrough app! I will provide self-development through the codes of cinema and eSport. I've been working with a lot of coachs, experts, investors, therapists and I regret that most of them have a 100% "teacher" approach. To me, life is like a video game, that's why my project is called "Be Your 0wn Hero". This project is all I am. I provide self-development, while being curious and learning more everyday, challenging myself to get out of our comfort zone day after day. I know we all have our own powers, superpowers, and that's what make us unique. My goal is to do an app because I think a website is "has-been" for that purpose no...

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    Three.js Expert -- 3 6 days left
    VERIFIED

    Hello, How are you I have project and the development is almost done. But the style is yet needed to fix. Please check the below google drive document. Hope to finish alert box in $150 and if that is going okay, then for lines problem will be $150 And total budget is $300. If you have experiences, let me know. And I will create milestone1 for alert box first and if that is going well then we can work in next milestones. All auto bid will be reported. Thanks,

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    A Hotel, Restaurant, Artisan Shops, and residential development in a rural area adjacent to a Indian reservation to incorporate the native wood and shrubs into the archetectural design.

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    Please read the attached in detail and ask any questions you may have

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    I am developing a flutter project and need help for little improvement and deploy to both os...

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    An existing mobile app has google authentication and now we are adding apple login. Apple login does not work and app breaks. i'm looking for someone who can 1. Work with current developer to understand the login mechanism for google login. 2. Understand existing APIs used for authentication of users 3. Fix backend APIs to ensure that Apple login can work in the same way as google login

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    Retail branding design and development. Work with our company to develop design ideas to present to our retail clients. Logos, icons, signage, window graphics.

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    We need someone to develop website and react native app. We have HTML template from Envato Market purchased you need to convert to React Native and Build Frontend and Backend. Write if you have any doubts.

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    Website Development (Purchased from themeforest to be in WordPress) and support one year

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    Jackson, MS mural art 6 days left
    VERIFIED

    Interested in doing some mural art at our commercial mixed use development in Jackson MS. We have a few small art placement areas and one large one. I’m interested in finding some artist who we like their work and who want to come to our area for a commissioned piece.

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    Local
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    Hi - we are looking for back-end or full-stack developer to complete a project. The developer must have the following experience: 1. Node.js 2. Has integrated applications with Quickbooks Online (QBO) and Xero. These are accounting systems that provides API's. Thank you

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    Website Development 6 days left
    VERIFIED

    Need a free Lancer or a team who can help me build my stock market simulator website along with knowledge on making some fresh graphics to support the website

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    Looking for an experienced and passionate individual/team for a Brand Strategy & Design project. We are a new-age startup trying to build a brand that aims to better the life of all the proud pet owners and their beloved pets. The project scope is divided into two phases as detailed below. 1) Brand Strategy - Brand Story - Positioning - Proposition - Personality & Values 2) Brand Expression - Logo Identity - Design Language - Typography & Color palette - Basic brand manual (considering above listed elements) A portfolio showcasing similar work experience is a must. We can take it forward from there if it fits our requirements.

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    ...have to do some. - we won't ask for a custom design for now but we will ask for a few edits in the theme. - it will be only a website project. - it will be in Arabic Language ONLY and we will help with any translations. - it must be completed within 1-3 MONTHS ( if you need more you have to tell us from the beginning ) - the developer must deal with the project as a full development project from : frontend , backend , development , designs .... etc MOST important notes that we will not except other than them : - the project will be with a FIXED price ONLY and we WON'T agree on milestones. - the full project must be delivered and we will not accept 90 or 99% completion. Note that : the developer who will work with us will be needed in other projects an...

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    ...Developer to be responsible To do fixing error and some upgrade for the coding, innovative design and layout of our website. Web developer responsibilities include building our website from concept all the way to completion from the bottom up, fashioning everything from the home page to site layout and function. Responsibilities Write well designed, testable, efficient code by using best software development practices Create website layout/user interface by using standard HTML/CSS practices Integrate data from various back-end services and databases Gather and refine specifications and requirements based on technical needs Create and maintain software documentation Be responsible for maintaining, expanding, and scaling our site Stay plugged into emerging technologies/industry t...

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    I have already got a manged hosted wordpresss installation , I need a developer to work with me to build the website using wordpress . Hosting and domain is already there I just need wordpress development skills

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    I am looking for somebody to develop some simple use-cases I need for my project using the yii2 framework, since I myself lack the time, since I'm full of work. Roles: Visiter (anybody who views the page) [can view reviews on public page] User [ can create and edit reviews about -stations- ] Station [ can view and comment on reviews written about oneself ] Use-case overview: *Visiter - can view reviews on public review page (home page) * User - can create, remove and edit and comment reviews about a specific -station- * Station - can view and comment on reviews written about oneself Demo structure: - register and login for either: -User- or -Station- - dashboard for -User- and -Station- - public home page to view published reviews Create review content/details: - mode: dra...

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    Hello, We are looking for experienced flutter Developer for modification in existing developed mobile App. Candidate should have experience of Flutter, Laravel, Google Maps, Firebase, PHP too. Because App is developed in Flutter and Admin Panel is developed in Laravel and PHP. You should have experience of developing and connecting APIs also. Location API needs to be developed on backend and it should be connected with frontend. Whatever changes are required in Merchant Panel Web , should be saved in Admin panel code also and needs to be connected with each other. Payment will be made in milestones. Below work is to be done at present. 1. Show Automatic ETA on Products like on Swiggy Zomato show on all of their items by adding Google Maps API with exact location by taking use...

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    I Want An App With Live Scores Of Cricket Matches

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    Looking for someone to help me develop a Zoom like invitation system for a Django project I am working on. I have the backend built (based off of Red5). I originally had a front end that worked off of user accounts but I want to scratch that and create the following. Basic features needed: 1. Invitation system that allows user who creates room to input email addresses and send invite to join room/session. 2. System that allows the creator of the room to accept users as they join. 3. Scheduling system that allows creator of the room to set time room becomes active and send invitations early.

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    We are looking for a developer to work on an already designed project. You will have to work with the project manager which will provide you the already converted to HTML/CSS project. The project is composed of 4 pages with dynamic content with a cart system and the need to save data in the indexedDB of browser. We need to end up with a fully front-end react app. Warning : You won't ...work with the project manager which will provide you the already converted to HTML/CSS project. The project is composed of 4 pages with dynamic content with a cart system and the need to save data in the indexedDB of browser. We need to end up with a fully front-end react app. Warning : You won't have to work on the back end. It will be done by our team. This job is only about the front-end ...

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    Build me a fully working e-commerce website In React & Node Js. I want exactly like with some changes fully frontend & backend.

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    Work done on "Script" WooCommerce site so far, thanks.

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    ...API. 4) Can you also confirm that you agree this project must finish within 30 days max or else the project will terminate without any payment? This is because we were previously let down by another company a few months ago which is why our client had stopped this entire project a few months ago and we want to resume the development. 5). Can you also send us a clear project plan explaining how you will work on this project and how you will keep us informed of the development etc. 6) Can you confirm that you do understand that once the Web portal issues are fixed then you need to move it to the Live Portal from the test environment and you need to ensure it uses the latest PHP updates and the PHP on Cpanel should also be updated because right now the Plesk Cpanel says th...

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    unity car game development 6 days left
    VERIFIED

    please bid if you have a already experience in unity car game development.

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    We have created a 3D Product Configurator for an e-commerce website for a company that has about 10 SKUs with multiple customization options. We need continued development.

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    We have web app. The back is in Node, the front is in Vue. We have completed 2 sprints over 5. We are looking for a subcontractor for the 3 last sprints because we have several projects which overlaps. We don't have enough internal human res...in Vue. We have completed 2 sprints over 5. We are looking for a subcontractor for the 3 last sprints because we have several projects which overlaps. We don't have enough internal human ressources to complete simultaneously all these projects. Beware: this project is complex. It requires advanced skills, especially for the backend and the thinking of the overall software architecture, the processing pipelines and the data model. Also, we have very strict development processes. If you love clean code and functional programmi...

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    Sealed
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    Airdrops 6 days left

    ) Airdrops: [login to view URL] (arround 400 airdrops) For every airdrop you have to find the start date when the airdrop started and enter the correct start date in the backend (check all airdrops) For every airdrop you have to find amount of tokens which have been airdroped and enter the correct amount of tokens (check only where airdrop has NA) Create new Airdrops which are missing Update data for Airdrops under upcoming airdrops ICO data entry [login to view URL] (arround 400 ico) Find ICO which are missing and create the ICO in the backend Find ICO with missing stages and all other missing data and enter the stages etc. in the ICO For all entries we will pay 40 usd Timeline: 2 days so you have to be very quick in completing the task in a very good quality. If ev...

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    Need help on Wix front end development on a new platform for furnished rentals Need help with the payment options and other things

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    DEADLINE: ASAP, someone who can start immediately. I am writing an application related to pet adoption. Unfortunately I got stuck in several places and made some mistakes, which seem easy on the surface, but unfortunately I can't solve them. Maybe there is a library missing in some cases? I am looking for a developer who can help me solve them and leave a comment on how he did it so I can learn. CARD: (attached screenshot Card) 1. I don't know why the buttons are coming to the top of the screen, now they are forcefully added to the bottom by margin-top, I need to solve this problem. 2. Pressing the center key should open CardExtended, navigate does not work. CARD EXPANDED: (attached screenshot CardExtended) 1. I made a view for this screen with hardcoded text, I want it (for n...

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