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Top freelance Back-End developers available to hire

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Freelance Back-End Developer - Kodaolu Idris Aremu
Freelance Back-End Developer5.0 (136 reviews)

Engineer with a strong sense of appealing user interfaces, efficient software design, and outstanding online platforms. I use my stack to create scalable and high-performing web solutions. I am a full-stack software engineer who is passionate about creating amazing products and collaborating with other exceptional engineers to find quick fixes for issues.

Freelance Back-End Developer - Dami Ogunmoye
Freelance Back-End Developer5.0 (31 reviews)

I'm Damilola Ogunmoye, a tech enthusiast, passionate result-driven solution provider, and the Co-founder and CTO at a Technology company that focuses on developing products and digital solutions; to empower forward-thinking businesses. I have a Bsc. in Computer Science with Economics and graduated with honors. I have over ten years of experience building digital products in different industries using various tools and technologies. My focus is on leading a team that delivers clean, maintainable, scalable, secured, and robust products with great architecture. I've worked with Javascript frameworks/libraries like React, Vue, ReactNative, Svelte, etc. CSS frameworks and libraries such as TailwindCSS, SASS, LESS, etc., Programming languages such as PHP, Go, Python, Javascript, etc., as well as relational and No SQL databases not limited to MySQL, MSSQL, MongoDB, Redis, PostgresSQL. I've helped build APIs for products and love building out tools for fun. I believe in continuing to innovate. One must always strive to improve by learning every day. I am currently enjoying working with Laravel, Tailwind, VueJS, and InertiaJS at the moment. Diving deep into Coding Smart Contracts in Solidity and Building Machine Learning Algorithms for Fun. Feel free to chat with me about any issues you might encounter in subjects not limited to Product Design and Architecture, Deployment (CI/CD), Detailing Technical Specifications, etc. I'll be more than willing to help.

Freelance Back-End Developer - Carlos Aguilar
Freelance Back-End Developer4.9 (67 reviews)

I’m a senior mobile + backend engineer with 20+ years in software (PHP since 2002; professional since 2005) and 10+ years building mobile apps. I help teams ship and stabilize real products—especially apps that are “almost done” but stuck on crashes, performance, flaky networking, or release blockers. What I can help you with (fast, practical): • iOS (Swift, SwiftUI, UIKit): crash fixes, performance/memory, concurrency issues, architecture cleanup • Flutter (iOS/Android/macOS): reliability, state consistency, networking/retry behavior, release readiness • Backend stability (PHP/Laravel or custom, Python/Django, Rails): idempotency, queues, DB performance, webhook safety • Firebase + mobile reliability: Auth/Firestore rules, Cloud Functions patterns, analytics/instrumentation • Monetization + shipping: RevenueCat/IAP reliability, App Store Connect/Play Console, CI/CD, rejection handling Recent work includes taking a messy iOS codebase (CakeClub) to production-ready with a Firebase Cloud Functions v2 backend, stronger security patterns, CI/release automation, and RevenueCat integration; and delivering major cross-platform Flutter work (BillBlaster) including design refinements, admin tooling, and push notification features. If you come with logs/screenshots (Crashlytics traces, network errors, repro steps), I’ll give you a clear diagnosis and a prioritized fix plan—and if it makes sense, I can execute the fixes as a focused sprint.

Freelance Back-End Developer - Abdullah Al Masud Tushar
Freelance Back-End Developer4.5 (2 reviews)

# 👋 How Do I Help? Just like a good doctor with a patient. I listen carefully, analyze deeply, and work toward the best solution. When mentoring, I approach with extra care, empathy, and patience. --- # ⚖️ My Work Ethic - **Honesty first**: No false promises, no wasted time. - **Client satisfaction matters most**: I only accept payment when clients are happy with the outcome. --- # 🔗 Find More Details - **LinkedIn**: [linkedin.com/in/rctushar07](https://www.linkedin.com/in/rctushar07) --- # 🌟 Why Choose Me? - **6+ years** in Full-Stack, Cloud & Data Engineering within the tech industry - Contributed to **5 industrial projects**, collaborating within large teams - **10 years of coding experience** and **2000+ competitive programming problems solved** - **10 LinkedIn recommendations** from international clients & teammates - **100+ aspiring professionals mentored** throughout my journey - Featured as **Top Full-stack Python Developer** in Prog.AI Analysis 👉 [Prog.AI Feature](https://www.linkedin.com/posts/prog-ai-hiring_python-python3-javascript-activity-7296196512563257345-Fx11) --- # 🎯 What Do I Offer? ## 💻 Development Services - **Web apps** using Django, Flask, FastAPI, React, NextJs - **N8N Automation** - **Cloud infrastructure development** & serverless apps - Database design & **performance optimization** - Troubleshooting & debugging with clear communication - **Data Engineering** & ETL pipelines - Web scraping, data collection, and visualization - Data ingestion, processing, and transformation for analytics - Workflow automation with **Python scripts** - Custom **Python libraries** & reusable Django apps - Third-party API integration (Stripe, social media, etc.) ## 👨‍🏫 Personalized Mentorship - Guidance for college/university projects & assignments - Short & long term mentorship on **backend, cloud, or data engineering** - Live **1:1 resume review** - Mock **DSA coding interviews** - Code reviews with professional insights - Project planning & management guidance (methodologies, challenges, team dynamics) - Advice on handling **stress & challenges** at work (deadlines, communication, disagreements, etc.) ---

Freelance Back-End Developer - Jignesh Patel
Freelance Back-End Developer5.0 (59 reviews)

Tech Lead and Mentor with ten years of experience in various domains and tech stacks following the industry's best practices, architecture, testing, code reviews, debugging, profiling, and CI/CD pipelines. **I have something special for you - let's discover:** - Student discount is applied automatically. - Displayed rate is not pocket friendly - no worries - I have something special for you. <br/> **Highlights:** - Mentoring is one of my passions, and I have helped numerous mentees on their journey to become successful developers in various fields such as web, native mobile, and cross-platform development. - I have helped many developers to fix critical bugs and implement complex features on the platform. - Proficient in working with teams on software development life cycle(SDLC) from requirement gathering or planning, defining, designing technical architecture, building or developing, testing, deploying, and maintaining applications - Well verse with development process/tools like Github Actions, CircleCI, CodeMagic, Fastlane, Jenkins, BuddyBuild, Git workflow, Github workflow, Agile PM tools, Continuous integration, and continuous deployment(CI & CD), Test/Domain-driven development with keeping healthy test code coverage, etc. - Proficient in creating and working with different kinds of APIs - REST / GraphQL - Proficient in working with databases SQL and NoSQL - Proficient in object-oriented design, data structures, problem-solving, complexity analysis, and debugging. - Proficient in writing efficient, maintainable, reusable, testable code that preserves privacy and security. - Proficient with different platform/services integrations - Right knowledge of toolset and libraries for effective and productive work.

Freelance Back-End Developer - Arpit Agrawal
Freelance Back-End Developer5.0 (8 reviews)

Available for: - Technical Mentorship / Career Consulting - Interview Preparation Mock Interviewing (especially with respect to FAANG and similar rated companies). Around 15 years of experience primarily in Backend Development but extended to Front-End (HTML/CSS, JS, React, Angular etc) and Mobile App Development (iOS/ Android). I have worked primarily with Java but have experience working on many other languages like Javascript, Python, Ruby, Objective C, Swift etc.

Freelance Back-End Developer - Ethan Reynolds
Freelance Back-End Developer5.0 (2 reviews)

Developer with 10 years of hands-on experience and nearly 6 in professional roles. I work across the stack and usually work in C, Go, Python, C#, Java, Kotlin, JavaScript, and TypeScript — with a strong preference for C and systems-level work. I enjoy helping others build a solid understanding of fundamentals instead of just getting them unstuck.

Freelance Back-End Developer - Chris Bryant
Freelance Back-End Developer

I provide expert-level guidance for developers building high-scale, design-forward applications. With over a decade of professional experience in the JavaScript ecosystem, my primary expertise lies in **Frontend Frameworks and UI/UX Design**, backed by deep full-stack and DevOps proficiency. ### My Core Expertise: * **Frontend & Design:** Expert mastery of **React, Vue, and Angular** with a focus on polished UI/UX and clean **TypeScript** architecture. * **Backend & Data:** Robust development with **Node.js, GraphQL, REST, and Kafka**. * **Infrastructure & DevOps:** Professional experience with **Kubernetes, AWS, Jenkins, and BuildKite**. In addition to my engineering background, I have previously served as a **Full-Stack Mentor for Thinkful.com**, helping developers bridge the gap between learning and professional-grade production. Whether you’re a bootcamp student or a working professional, I’ll help you navigate the complexities of the modern stack with the confidence of a 10-year veteran.

Freelance Back-End Developer - Carine Lawson
Freelance Back-End Developer5.0 (28 reviews)

I have 12 years experience working in software development. My strength is in front end development and user experience, however I am considered a generalist because I have been a full stack developer as well as worked in databases using SQL.

Freelance Back-End Developer - Aasif Khan
Freelance Back-End Developer5.0 (14 reviews)

Experienced Software Engineer specializing in distributed systems and scalable architectures. Skilled in React, Next.js, TypeScript, Golang, and backend scheduling systems. Passionate about backend performance optimization and open-source contributions, with contributions to dicedb and open-feature/flagd.

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Frequently asked questions

How long do Back-End 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 Back-End 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 Back-End request on Codementor, check out our article.

How much does it cost to hire a freelance Back-End developer?

We don’t charge anything when you post a freelance hiring request for Back-End 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 Back-End developers different?

We do a comprehensive technical and communications screen of all Back-End 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 Back-End 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 Back-End 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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