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Top freelance Big Data developers available to hire

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Freelance Big Data Developer - Qaiser Mehmood
Freelance Big Data Developer5.0 (7 reviews)

I define the architecture. For 21 years, I've been the person CTOs and lead developers call when systems fail under load, migrations are at risk or AI integration needs to work right the first time. With expertise in .NET, Python, Blazor, ASP.NET Core, SQL and agentic AI architecture (LLMs, reasoning engines, Semantic Kernel, LangGraph, tool-calling agents), I design systems where performance, reliability, and intelligent automation aren't optional—they're the baseline. I deliver AI in production, not prototypes. I’ve architected and deployed AI-powered systems across financial platforms, education and exam automation, and real estate market intelligence, including enterprise-grade solutions for organizations such as The New York Times, Project Management Institute (PMI), Walmart, Merit Wealth, Namfus and BlueberryCMS. --- **Here's where I'm most useful to you:** - **The AI Integration Trap** — You've been asked to add AI to your existing .NET system but don't know whether to use *Semantic Kernel*, raw OpenAI APIs, or a Python sidecar. I've made that decision dozens of times. I'll make it faster and safer for you. - **The Blazor Bottleneck** — Your Blazor app is slow, state management is tangled, and you're unsure if you chose *Server or WASM* incorrectly. I can diagnose what went wrong and map a clean path forward — often in a single session. - **The Legacy Modernization Cliff** — You have a 10-year-old .NET system that needs AI or modern tooling but wasn't designed for it. I specialize in *incremental refactoring paths* that don't require a full rewrite and don't break what's already working. --- **What I Do Best:** - **Software Architecture & System Design** — scalable, maintainable systems from greenfield to enterprise - **AI Agent Development** — production-grade agents with Semantic Kernel, LangGraph & AutoGen — *not demos* - **Blazor & ASP.NET Core** — Server, WASM, hybrid — full-cycle development and performance tuning - **Python & AI Automation** — RAG pipelines, workflow automation, voice AI, LLM integrations, chatbots - **Legacy .NET Modernization** — refactoring strategy, migration paths, incremental upgrades - **Architecture Audits** — identifying structural risk before it becomes a production incident, not after - **Debugging Complex Systems** — when the stack trace doesn't tell the whole story **If any of this sounds like your current situation — DM me. I respond to every message.**

Freelance Big Data Developer - Albert Li
Freelance Big Data Developer5.0 (12 reviews)

I’m an experienced software engineer with many years in the industry, including time at Google. I have strong expertise in Java, Python, and AWS, and I enjoy solving complex problems. I focus on building the right solutions, simplifying systems, and reducing complexity and cost. I’m looking to work on projects where I can use my skills and problem-solving mindset to create efficient and scalable software.

Freelance Big Data Developer - Ajay Sadhu
Freelance Big Data Developer

My journey with technology started with my bachelors in Computer Science. I had got good understanding of Linux Operating Systems and Networking during my stint at College and it paved way for my future specialisations. In my first job - Infosys, developed Products and Platforms on Big Data and later joined my close friends and started Knowledge Lens, after that moved to USA for Masters in Data Science and worked for Siemens in Product Lifecycle Management R&D. Had an opportunity to build IoT platform and mentor interns/new joiners in various aspects of Products & Platform development. In my opinion, Technology is a means to better our day-to-day life events, so my focus is in building Solutions to existing problems. In that respect, I do not contain my self to trending technologies/specific languages or programming styles but look for best technologies that can help build Solutions at per necessitates (Scalable, Resilient, De-couple/Coupled, Cloud/On-Premise, Secured, Cost Effective, Sustainable and Faster operations).

Freelance Big Data Developer - Pavneet Singh
Freelance Big Data Developer5.0 (2244 reviews)

I am an adept **Full Stack Software Engineer and Architect** and with a wealth of experience in frontend, backend, and Data Structures and Algorithms (DSA) solution development. My expertise spans **clean architecture, TDD(test driven development), code reviews, debugging, and profiling**, enabling the delivery of high-quality solutions within constrained short timeframes. I have worked and collaborated with numerous prominent global blue chip corporations, startups, and international clients. Additionally, have made substantial contributions to Pluralsight and Stack Overflow, boasting a reputation exceeding 37k+ and ranking within the top 0.30% of users on the latter platform. Motto: Full refund in case of no help. Discounts: - Student discount is applied automatically. • Senior software engineer, have worked as a Subject Matter Expert and lead with the primary role to develop features, solve complex bugs, architecture refinements, feature integration, and development. • I intent to deliver a top-quality experience by delivering the most optimal solutions and guidance to enlighten the learners. • I have helped many developers to fix critical bugs and implement complex features on the Codementor platform. • Teaching is one of passing and I have helped numerous mentees on their journey to become successful developers in various fields such as web, native mobile, and big data. • I have expertise in curating and simplifying the content to deliver the best experience with different analogies. • I am deft at feature implementation, debugging, and refactoring. If you have any questions, Feel free to reach out, looking forward to meeting you.

Freelance Big Data Developer - Duc Duy Bui
Freelance Big Data Developer5.0 (452 reviews)

Freelancer, Professional with over 13 years of experience specializing in developing solutions for finance and insurance companies. My strength is learning new technologies fast and I'm a technology enthusiast.

Freelance Big Data Developer - Aman khurana
Freelance Big Data Developer5.0 (144 reviews)

More than 6 years of Analytics experiences across Retail, telecom and manufacturing domains.

Freelance Big Data Developer - Jonathon Bell
Freelance Big Data Developer5.0 (39 reviews)

Superb C++, Haskell, Scala, FP, and OO design chops. Expert at designing compilers, type systems, frameworks, and embedded programming languages. Strong background in pure mathematics, computer science, functional programming, and category theory.

Freelance Big Data Developer - Jonathan Kanaan
Freelance Big Data Developer5.0 (27 reviews)

Do you need someone that knows the ins and outs of AI, Cloud, Software Engineering, System Scaling, and Design? I'm an experienced AI Engineer, Cloud Expert, Coder, and User Experience Researcher that has worked for JPMorgan Chase, the United Nations, American Express, AT&T, and Lockheed Martin as well as for several startups and small businesses. Additionally, I've mentored people running successful startups and working in companies like Anthropic.

Freelance Big Data Developer - Anthony Carnevale
Freelance Big Data Developer5.0 (9 reviews)

My name is Anthony and I am excited to share with you what I have learned over the years learning and writing code. I myself began learning here on Codementor and I am excited to share that with others. I understand how difficult it was getting started and patience and being sure we understand before moving on are my priorities. I always offer the first 15 minutes without charge so you can see for yourself if I am a good fit! Thank you and happy coding, Anthony

Freelance Big Data Developer - Manish Samriya
Freelance Big Data Developer5.0 (16 reviews)

I have 11 year of experience in software development. I can provide any solution related to software. My key skill python, Mysql,oracle sql , plsql, informatica,tableau, reporting , data analysis, Machine learning etc. All kind of database activity I can done.

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Frequently asked questions

How long do Big Data 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 Big Data 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 Big Data request on Codementor, check out our article.

How much does it cost to hire a freelance Big Data developer?

We don’t charge anything when you post a freelance hiring request for Big Data 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 Big Data developers different?

We do a comprehensive technical and communications screen of all Big Data 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 Big Data 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 Big Data 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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