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Freelance Api Developer Jobs (NOW HIRING)

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Drupal Developer

Atlanta, GA · On-site +1

Georgia Tech Professional Education is looking to utilize freelance developers to assist our in ... Form API, Batch API, Entity API, Field API in addition, solid PHP and MySQL experience are ...

Wegacha

You have proven work experience as a Shopify developer ... Proficient with Shopify Liquid template language, Shopify API and webhooks * You have strong skills ...

Anagh Technologies, Inc.

Lead React Developer

Louisville, CO · On-site

$60.75 - $77.75/hr

... not freelance / hobby experience) • Solid understanding of fundamental programming concepts • ... via REST API's • Experience with reactive programming concepts and RxJS • Eagerness to ...

Quidient

Staff iOS Engineer

Columbia, MD · On-site

$165K - $200K/yr

Our flagship GSR product, Quidient Reality ® , is a powerful API that enables anyone with a mobile ... freelance acceptable but must include experience with large, complex codebases (not simple sandbox ...

SysMind, LLC

The engineers should also have hands-on experience We need individuals who can hit the ground ... NET Web API * Strong understanding of Clean Architecture , dependency injection, middleware, and ...

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Freelance Api Developer information

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How much do freelance api developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for freelance api developer in the United States is $59.89, according to ZipRecruiter salary data. Most workers in this role earn between $54.57 and $67.31 per hour, depending on experience, location, and employer.

What is a freelance API developer?

A Freelance API Developer is a self-employed software professional who specializes in creating, integrating, and maintaining Application Programming Interfaces (APIs) for clients on a contract or project basis. They work with various programming languages and frameworks to enable different software systems to communicate with each other. Freelance API Developers often collaborate with businesses, startups, or other developers to design APIs that meet specific needs, troubleshoot issues, and ensure secure and efficient data exchange. They typically manage their own schedules and work remotely or on-site, depending on the client’s requirements.

What skills and qualifications are needed to thrive as a freelance API developer?

To thrive as a Freelance API Developer, you need strong programming skills (often in languages like Python, JavaScript, or Java), a solid understanding of API design principles (REST, SOAP), and experience with authentication and security standards. Familiarity with API development tools such as Postman, Swagger, and version control systems like Git is typically required, along with knowledge of cloud platforms and relevant certifications. Excellent problem-solving, client communication, and time management skills help you stand out in delivering tailored solutions and managing multiple projects. These capabilities are crucial for building reliable APIs, meeting client needs, and succeeding in a competitive and dynamic freelance environment.

How do freelance API developers typically coordinate with clients and other team members during a project?

Freelance API Developers often collaborate remotely with clients, project managers, and other developers using tools like Slack, Trello, or Jira. Clear communication and regular check-ins are vital to ensure alignment on project requirements, timelines, and deliverables. Developers are usually responsible for providing updates, documenting their code, and sometimes participating in code reviews or integration meetings. This collaborative approach helps ensure the API integrates smoothly with other systems and meets the client's needs.

What is the difference between Freelance Api Developer vs Freelance Software Engineer?

AspectFreelance Api DeveloperFreelance Software Engineer
Required SkillsAPI design, RESTful services, JSON/XML, programming languages like Python, JavaScriptBroad programming skills, software architecture, various programming languages
Work EnvironmentProject-based, remote or on-site, client-specificProject-based, remote or on-site, diverse industries
Industry UsageTech companies, startups, API-centric projectsTech, finance, healthcare, and many other sectors

Freelance Api Developers specialize in designing and implementing APIs, often working on specific integrations and data exchange projects. Freelance Software Engineers have a broader scope, working on entire software solutions across various industries. Both roles are project-based and often remote, but Api Developers focus more on API-specific tasks, while Software Engineers handle comprehensive software development.

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Freelance Api Developer jobs near you
Infographic showing various Freelance Api Developer job openings in the United States as of August 2026, with employment types broken down into 82% Full Time, 2% Part Time, and 16% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $124,567 per year, or $59.9 per hour.

Freelance Full-Stack Web App Developer

Mindrift

Austin, TX • Remote

$60/hr

Part-time

Posted 14 days ago

Job description

Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project (https://tendem.ai/) and build interactive browser-based applications for real-world use cases.

In this role, you'll apply your full-stack engineering expertise to design, build, and maintain functional, robust, and user-friendly web applications. This part-time remote opportunity is ideal for professionals with hands-on experience in modern frontend frameworks, backend APIs, databases, and shipping interactive web products end-to-end.

What We Do 

The Mindrift platform connects specialists with innovative technology projects. Our mission is to help develop high-quality AI technologies by combining real-world expertise from professionals across the globe with advanced AI development efforts.

About the Role

This is a freelance role for a Tendem project. As a Full-Stack Web App Developer, you'll design, build, and refine browser-based applications with real logic, state, persistence, and user input - from habit trackers and budgeting tools to internal dashboards, mini-SaaS tools, and AI-powered apps. You may also work on standalone Python applications and data-processing scripts that sit alongside or behind these products.

Key Responsibilities  

  • Build interactive web applications with frontend (React, Next.js, Vue, or similar) and a backend API (Python/FastAPI/Flask or Node/Express).
  • Design and implement data models, schemas, and persistence layers using SQL (PostgreSQL, SQLite) or NoSQL stores.
  • Implement authentication, sessions, and basic role-based access where needed.
  • Integrate third-party APIs and AI/LLM services (OpenAI, Anthropic, or similar) into product features.
  • Handle state management, user input validation, error states, and loading states cleanly.
  • Build standalone Python tools and scripts where required by the task (data processing, API clients, lightweight backend utilities).
  • Review, debug, optimize, and refactor full-stack applications to improve correctness, security, performance, and maintainability.
  • Write clear, testable code and debug end-to-end issues across frontend, backend, and database.

Educational qualifications

  • At least 3 years of relevant experience in full-stack web development or shipping interactive web applications (required).
  • Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus.

Academic and/or Professional Experience

Candidates should have a strong foundation in full-stack web development, modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end. We are looking for specialists who can confidently work across frontend, backend, databases, and APIs, design robust application logic, and build production-ready web applications. Strong problem-solving skills, attention to detail, and the ability to independently architect and ship complete features are essential.

Technical Skills (Essential)

  • Strong command of JavaScript/TypeScript and at least one modern frontend framework (React, Next.js, Vue, Svelte, or similar).
  • Solid backend experience in Python (FastAPI, Flask, Django) and/or Node.js (Express, NestJS).
  • Hands-on experience with relational databases (PostgreSQL, MySQL, SQLite) and basic schema design.
  • Experience implementing REST APIs, request validation, error handling, and authentication flows.
  • Familiarity with deployment platforms (Vercel, Netlify, Render, Fly.io, Railway, or similar).
  • Experience integrating LLM APIs or other AI services into product features is a strong plus.
  • Comfortable with version control (Git) and basic testing practices.

Additional requirements

  • Strong attention to detail and commitment to building working, robust products - not demos.
  • Self-directed work ethic with the ability to architect, build, and ship features independently.
  • Portfolio of shipped web applications (required).
  • English proficiency: Upper-intermediate (B2) or above (required).

Project time expectations 

For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.

Compensation 

On this project, contributors can earn up to $60 per hour equivalent, depending on their level and pace of contribution.

Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.

Why this freelance opportunity might be a great fit for you? 

  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform.
  • Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

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