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Top freelance API Integration developers available to hire
Freelance API Integration Developer5.0 (59 reviews)
Seasoned Web Developer and Blockchain enthusiast with a proven track record in the IT and services industry. Expertise in Research, PHP, HTML, JavaScript, and Blockchain development, including Smart Contracts. Skilled in automation, application testing, and cybersecurity analysis for web and mobile apps.
Technical leader with 9 years building scalable solutions across auction platforms, content management systems, and enterprise applications. Currently leading AI-First development at Pickles Auctions, helping teams adopt GitHub Copilot and modern development practices. Strong background in microservices, CLI tools, and data engineering with a focus on mentoring developers and designing systems that solve real business problems.
Freelance API Integration Developer5.0 (259 reviews)
With over 15 years of experience across software engineering, architecture, and product leadership, I specialize in building high-performing engineering teams, architecting scalable systems, and driving strategic product delivery. As a Tech Lead and adjunct faculty member, I combine hands-on technical expertise with leadership, mentorship, and education to deliver enterprise-grade solutions while developing the next generation of engineers.
Technology Stack:
Mobile & Web: Flutter/Dart, React, Multi-tenant Architectures
Cloud & Backend: AWS (AppSync, Amplify, Lambda), Firebase, GraphQL, REST APIs
Languages: C/C++/C#, Dart, Java, Python, JavaScript/TypeScript
Specialized: IoT, Embedded Systems, Edge AI, Information Security
Architecture: Clean Architecture, Microservices, Event-Driven Systems
Leadership & Roles:
Tech Lead / Chapter Lead – Leading cross-functional teams of 8+ engineers
Product & Engineering Manager – Driving product strategy and delivery
Solutions Architect – Designing enterprise systems and multi-tenant platforms
Educator & Mentor – Adjunct faculty + 300+ mentees on Codementor
Key Expertise:
Teaching computer science fundamentals and advanced topics
Leading distributed engineering teams and establishing technical standards
Architecting and delivering complex SaaS platforms
Strategic product roadmapping and stakeholder management
Building developer assessment frameworks and quality systems
Mentoring engineers from junior to senior levels
Educational Background:
PhD Candidate, Computer Engineering (Edge AI Research)
Master of Computer Engineering
Master of Business Administration (MBA)
Postgraduate Diploma, Software Development Skills (UNIX)
Bachelor of Computer and Information Sciences
Current Focus:
Building scalable multi-tenant platforms, AI-driven development workflows, team capability development, and strategic consulting and education.
Freelance API Integration Developer5.0 (45 reviews)
Senior Full‑Stack Developer with over seven years’ experience designing, building and maintaining large‑scale web applications.
Track record of delivering end‑to‑end solutions by partnering with stakeholders to translate business and user needs into reliable software.
Committed to clean, maintainable code, performance tuning, security best practices, and automated CI/CD pipelines.
Nearly two years of hands‑on AI experience, integrating machine learning models and automation to boost product intelligence.
I’ve contributed as a developer at global leaders Adobe and Newgen, as well as at high‑growth startups MoveInSync and Zillious Solutions.
Skills
Advanced:
Java, MySQL, PostgreSQL, Spring, Hibernate, Spring Boot, Maven/Gradle, Microservices, Multithreading & Concurrency Control, Web Services (SOAP & REST), RPC, Git, Google Cloud Platform (GCP), Database Modeling & Schema Design, SQL (Stored Procedures/Functions, Triggers), Docker, Kubernetes.
Intermediate:
TypeScript, Python, Angular, React, API Gateway, Service Discovery, Load Balancer, ELK Stack, Kafka, RabbitMQ, Redis Cache, RAG (Retrieval-Augmented Generation), AI Agents, LangGraph, Vector Databases, AI Workflows, Fine‑Tuning.
Core Strengths:
Scalable system design, back‑end architecture, data structures & algorithms.
How I Can Help You
– I’m here to tackle your toughest technical challenges with expertise and dedication.
Special Offer
– Enjoy your first session free! (Terms & Conditions apply — let’s discuss your needs during our requirement-gathering call.)
Satisfaction Guaranteed
– Not satisfied? Request an instant refund, no questions asked.
For a comprehensive overview of additional technologies and frameworks tailored to your needs, please refer to the Expertise section of my profile.
* 15+ years of experience in software development.
* 7 years of building apps with NodeJS, React and Angular.
* 5 years of hands-on work with cloud-based.
* Solid background in computer science and software development.
* Proficient in important practices like Clean Code, Refactoring, Test Automation, and CI/CD.
* Exceptional at solving problems and learning new technologies quickly.
With over a decade of experience in full-stack development, I specialize in **Ruby on Rails, custom eCommerce solutions** (Spree, Solidus), **ReactJS**, and **DevOps**. My expertise spans designing and developing scalable, distributed cloud-based applications with a strong foundation in **database architecture** and **system refactoring**.
As a technology leader, I’ve successfully delivered complex, high-impact projects across industries including **Real Estate, Finance, Healthcare, Marketing**, and **eCommerce**. My portfolio includes building sophisticated eCommerce marketplaces, **SaaS platforms**, and multi-channel selling applications. I am passionate about crafting innovative, robust software solutions tailored to meet diverse business needs.
**Key Expertise:**
- **Backend:** Ruby on Rails, building and scaling RESTful APIs.
- **Frontend:** ReactJS, JavaScript, responsive UIs with Tailwind CSS, and Bootstrap.
- **eCommerce Solutions:** Spree, Solidus, custom marketplaces, multi-tenant SaaS platforms.
- **Database Architecture:** MySQL, PostgreSQL, MongoDB, Redis, Cassandra, optimized for high performance and scalability.
- **DevOps:** CI/CD pipelines (CircleCI, AWS Pipeline), containerization (Docker), cloud platforms (AWS, GCP, Heroku, DigitalOcean).
- **Test-Driven Development:** Expertise in TDD using RSpec, ensuring high code quality and maintainability.
In addition to my technical expertise, I have a strong commitment to **open-source contributions** and have developed multiple **Ruby/Rails/Spree extensions**. I also bring a wealth of experience in **refactoring legacy code bases**, implementing **performance optimisation**, and improving **scalability** and **security**.
My passion lies in helping businesses unlock their full potential through technology, and I am always eager to collaborate on long-term, impactful projects.
Let’s build the future, one line of code at a time.
Best regards,
Rahul Singh
Freelance API Integration Developer5.0 (101 reviews)
I'm an accomplished polyglot developer with over ten years of extensive experience specializing in design innovation, crafting clean and maintainable code, managing multiple databases and caches, orchestrating CI/CD pipelines, and adeptly resolving even the most challenging production issues through impeccable debugging and analytical skills. Here's more about me https://malaymehta.com
My expertise extends to a diverse range of areas, making me a valuable resource for your software development needs:
- **Application Development:** Whether you're launching a new project from the ground up or seeking guidance on selecting the most suitable technology stack and adhering to best code quality practices, I can provide valuable insights and assistance.
- **Complex Problem Solving:** I excel in crafting intricate coding solutions and swiftly tackling critical bugs that can ablaze your production environment.
- **Clean Coding and Testing:** I'm committed to promoting clean coding practices and achieving comprehensive test coverage to ensure the robustness and maintainability of your software.
- **CI/CD Pipeline Setup:** I deeply understand setting up CI/CD pipelines on various widely recognized platforms, streamlining your development process.
- **Cost-Effective Deployments:** When deploying your application, I prioritize cost efficiency in the cloud environment, helping you transform your ideas into reality without breaking the bank.
- **Security Analysis:** My knowledge includes conducting thorough security analyses to fortify your applications against potential threats.
My dedication to continuous learning has allowed me to accumulate knowledge in many technologies. My diverse experience equips me to assist you on various fronts of software development.
If this resonates with your needs and you recognize that my skills align with your requirements, I encourage you to connect with me. When reaching out, please provide a brief summary of the assistance you're seeking. I stand by the quality of my mentoring sessions, and if you're unsatisfied with the resolution, I'll issue a full refund.
For students with unverified profiles, I offer discounted rates as a gesture of support for your learning journey.
Thank you for considering me as a potential partner in your software development endeavors.
Freelance API Integration Developer5.0 (4 reviews)
I do it all, I do iOS (swift and Obj C) , Android (Kotlin and Java), front end (I use my own JS framework, although I know vue or react), and Node Js for my back end, I prefer MongoDB, but I can use SQL like Postgres, Been programming for nearly 20 years so I know the ups and downs. I have clone Uber, Twitter , Tinder and other major apps for clients, like "tinder for job matching between employers and candidates".
Freelance API Integration Developer5.0 (51 reviews)
I'm a **polyglot fullstack software developer** (*I'm able to effectively work with multiple languages, tools, and frameworks*) with over 13+ years of industry experience in web application development. I'm also an instructor and mentor in various bootcamps having lead class cohorts, mentored groups of students and 1:1 tutoring sessions. I'm experienced in **Python**, **ECMAScript** (Javascript or Node.js), **Java**, **C#** **Ruby**, **PHP**, and even **Scala**. I work in both frontend and backend spectrums of the web stack, so whether you're debugging something in React.js or you're stuck on a complex SQL query, I'm more than happy to help in your code debugging adventures.
My instruction style is that I like to guide the student towards learning *how* to solve rather than simply giving you the solution - I don't believe a student should be stuck on always referring back to a senior developer to get unblocked, but should be empowered to solve their own problems. Now that's real mentorship!
Freelance API Integration Developer5.0 (24 reviews)
Technology leader with over 20 years of experience across cloud engineering, software architecture, cybersecurity, and technical management. I specialize in designing and securing enterprise-grade Azure environments, modernizing applications, implementing Infrastructure as Code, building CI/CD pipelines, and leading teams through complex technology initiatives. My background combines hands-on engineering expertise with strategic leadership, allowing me to bridge cloud, software development, and security to deliver reliable, scalable, and business-focused solutions.
* Microsoft – Azure Administrator
* Microsoft – Azure Fundamentals
* Microsoft – Azure AI Fundamentals
* Microsoft – Azure Data Fundamentals
* CompTIA CASP+
* CompTIA Security+
* EC Council – Certified Application Security Engineer .NET
* EC Council – CEH Certified Ethical Hacker
* eLearnSecurity – eCRE Certified Reverse Engineer
* IITAC – Certified Reverse Code Engineering Professional
* IACRB – Certified Reverse Engineering Analyst
* Embarcadero Certified Delphi Developer
How to hire a freelance API Integration developer on Codementor
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Frequently asked questions
How long do API Integration projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance API Integration project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance API Integration request on Codementor, check out our article.
How much does it cost to hire a freelance API Integration developer?
We don’t charge anything when you post a freelance hiring request for API Integration developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
What makes Codementor API Integration developers different?
We do a comprehensive technical and communications screen of all API Integration developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing API Integration developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
As a platform, we strive to ensure you’re always happy with your API Integration project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.
For more answers to frequently asked questions, see here.
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