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Top freelance Data Engineering developers available to hire
Freelance Data Engineering Developer5.0 (57 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.
Freelance Data Engineering Developer5.0 (3 reviews)
Senior Data Scientist with expertise in machine learning, natural language processing, information retrieval, and data engineering.
Extensive experience in developing advanced algorithms and solutions across various industries.
And, years of tutoring experience!
Freelance Data Engineering 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 Data Engineering Developer5.0 (291 reviews)
Application Developer in a wide variety of business applications. Particularly interested in server side technologies.
Experienced in Java J2EE web application development including Content Management System (Alfresco), Portal Applications (Liferay and SharePoint).
Experience in interfacing different business application using middleware servers (BizTalk, SSIS).
Experience in Big Data Implementation using Spark, Scala, Hive, Hbase, and Pig.
Experience in various domain like banking (credit card application), media & entertainment, Logistic and manufacturing.
Specialties: Big Data Application implementation in Scala and spark using Horton works platform. Design and Implemented projects with data load up to 1 TB per hour with complex transformation.
Freelance Data Engineering Developer5.0 (6 reviews)
I am a seasoned an engineering leader and platform architect who views coding as both a craft and a creative outlet. My passion for product thinking and emerging technologies drives me to continuously explore innovative tech stacks, fueling my curiosity and commitment to learning. Over the years, I have designed and built platforms from the ground up—scaling them to serve millions of users.
My expertise range from building {𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬} to {𝗺𝗶𝗰𝗿𝗼-𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀, 𝐝𝐚𝐭𝐚 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠, 𝐚𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 & Gen AI Pipelines}.
Developed product at scale leveraging below stacks/framework:
💻 Full-Stack Frameworks
• MEAN (MongoDB, Express, Angular, Node.js)
• MERN (MongoDB, Express, React, Node.js)
🌐 Web Frameworks
• FastAPI
• Pyramid
• Django
• Fastify
• Hono (for modern TypeScript/JavaScript edge apps)
📊 Big Data & Streaming
• Apache Kafka
• Apache Samza
• Apache Spark
• AWS Kinesis
• ELK Stack (Elasticsearch, Logstash, Kibana)
☁️ Cloud & Serverless
• Serverless Framework (AWS Lambda, Google Cloud Functions)
• Supabase
• Firebase
🗄️ Databases
• MongoDB
• Couchbase
• PostgreSQL
• MySQL
• AWS RDS
📱 Mobile Development
• Flutter (Android & iOS)
• React Native (Android & iOS)
🔐 Authorization & Policy Engines
• Open Policy Agent (OPA)
• OpenFGA
🧠 AI & Generative Tech
• Generative AI (Gen AI)
• Retrieval-Augmented Generation (RAGs)
• AI Agents
• Prompt Engineering
🧬 Vector Databases
• Weaviate
• Chroma DB
• Supabase (pgvector)
🛠️ AI Frameworks & Orchestration
• LangChain
• LlamaIndex
• CrewAI
• Haystack
Freelance Data Engineering Developer5.0 (4 reviews)
Senior DevOps, DevSecOps, and Enterprise Architect with over 10 years in Architecting and Impementing Highly Performant, Highly Scalable and Highly Secure Systems that conform to Industry Best Practices.
I have had the privilege of serving in the Health, Finance, Insurance, Manufacturing, Educational and Power sectors. I have also had hands on experience in designing and implementing Zero Trust Infrastructure, ISO 27001 and SOC II Compliant Architcture and Processes.
I take pride in mentoring the younger generation and I have many success stories. I am very compatible with working within GMT -8 to GMT +3 timezones with 6 to 8 hour overlaps.
Skills and Technology: C#, Python, Node.js, .Net Core, [ASP.Net](http://asp.net/) MVC, Worker Services, Django, Express.js,
Microservices, Docker, APIs, Git, Jenkins, Octopus, CircleCI, Kubernetes, MongoDb, SQL Server, Elasticsearch, Redis, Service Bus, RabbitMQ, MySQL, PostgresDB, AWS, GCP, Azure, Agile, NoSQL, TDD, DevOps, DevSecOps, CICD, Biometrics, Team Management, System Admin, Mentor, ClickUp, JIRA, Terraform
20 year software engineer, 10 years engineering manager. Extensive experience in Javascript/React for coding mentorship. Mentoring for 15 years a mix of technical, leadership, and professional skills. I do this for fun on the side so I don't charge much.
https://www.dandigangi.com
https://linkedin.com/in/dandigangi
https://x.com/dandigangi
Freelance Data Engineering 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 Data Engineering Developer5.0 (64 reviews)
I am an expert Data Engineer having 10 years of experience with exposure on in-house, hybrid & AWS, GCP cloud services. I hold **Data Architect Nanodegree from Udacity**. My Primary skills include -
- Languages - Python, PHP, Ruby, Javascript, HTML, CSS
- Packages - PySpark, Pandas, Numpy, Flask, Jquery, Bokeh
- Tools - Spark, Hadoop, Hive, Mysql, Postgres, Airflow
- File Formats - json, csv, txt, Parquet
- GCP - Cloud functions, DataProc, Bigquery, GCS
- AWS - Lambda functions, API Gateway, Athena, Cloudwatch, Glue, DataBrew, Kinesis, S3, Redshift, Redshift Spectrum, SNS, SQS
I mostly worked on developing, maintaining, optimising ETL/Data pipelines, used variety of tools & process during pipeline execution. Apart from building pipelines i holds good hands on building custom scripts or solutions.
I am a quick learner & having positive mindset which helps me to tackle a complex problem in easy way. During my experience i optimised numerous pipelines where improved time by ~70% & saved cost with magnitude of 10th part.
If you are looking for any help in learning, solving complex data problem, you are at right place. I am happy to help here.
Thanks.
Freelance Data Engineering Developer5.0 (33 reviews)
Independent consultant with 6 years industry experience. Ex-Google AI, buyside quant.
I've been working on technically complex projects for some sixteen years, and explaining them to others for about as long. Whether that's an exposition of a high-school level math problem or educating a startup CEO on technology topics as they relate to their business, I both enjoy and am effective doing it.
My core expertise is in Machine Learning, from basic research, some of it published and patented, to direct applications.
Some tools and concepts I have experience using: Python, C++, PyData ecosystem (numpy, scipy, pandas, numba, etc.), pytorch, optimization (for ML and other problems, such as scheduling), SQL databases, Arrow, Parquet.
Happy to help with your problems!
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Frequently asked questions
How long do Data Engineering 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 Data Engineering 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 Data Engineering request on Codementor, check out our article.
How much does it cost to hire a freelance Data Engineering developer?
We don’t charge anything when you post a freelance hiring request for Data Engineering 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 Data Engineering developers different?
We do a comprehensive technical and communications screen of all Data Engineering 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 Data Engineering 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 Data Engineering 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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