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Freelance Data Engineering Developer - Kodaolu Idris Aremu
Freelance Data Engineering Developer5.0 (126 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 Data Engineering Developer - Alper Nebi Kanlı
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 Developer - Dami Ogunmoye
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 Developer - shubhanshu
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 Developer - Shahid Thaika
Freelance Data Engineering Developer5.0 (17 reviews)

Senior data engineer and BI specialist with 17+ years of experience building scalable data warehouses, reliable pipelines, and high-impact reporting solutions across advertising, retail, real estate, and supply chain. Brings strong business understanding across marketing and sales, finance, and logistics, with a strong track record of modernising legacy data environments and optimising large-scale workloads.

Freelance Data Engineering Developer - Anjali Gupta
Freelance Data Engineering Developer5.0 (4 reviews)

Senior Software Engineer with 8 years of experience building backend applications and enterprise software. Experienced in Java, Spring Boot, Microservices, REST APIs, System Design, and Distributed Systems. Worked on scalable applications, performance optimization, production support, and software architecture. Currently working at Microsoft, contributing to the WPF framework and leading initiatives around modernization, automation, accessibility, and performance improvements. Previously worked at Siemens Healthineers building backend services and APIs for medical imaging systems. Skilled in designing reliable, scalable, and maintainable software solutions while collaborating with cross-functional teams. Core expertise: • Distributed Systems & Microservices • System Design (HLD + LLD) • Java, Spring Boot, C#, .NET, [ASP.NET](http://asp.net/) • REST APIs & Backend Engineering • Performance Optimization & Scalability • Concurrency, Reliability, and Production Debugging • CI/CD and Release Engineering Conducted 50+ design/code reviews and contributed to engineering best practices across teams.

Freelance Data Engineering Developer - Dan DiGangi
Freelance Data Engineering Developer

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 Developer - Minesh A Jethva
Freelance Data Engineering Developer

Data Scientist, Cloud Solution Architect, Machine Learning Algorithm Research Engineer, Kaggle Competition Expert #553 (Top 0.5 %), with extensive experience with developing algorithms, statistical models and deep learning architectures using Python in a Big Data environment. Currently working as a Data Scientist with TimeSeries (IoT) domain, design machine learning experiments and developing efficient sequence models for Time-Series segmentation and classification. I have 8+ yrs. experience with Data Science & AI challenges. • A developer and researcher with expertise in data mining , visualization, modeling and evaluation using Python, Pyspark or R on Cloud Platforms. Intermediate experience with SQL and Java. • Curious and enthusiastic to learn and adapt new ideas, concepts, methods, and technology • Experienced with solving variety of interdisciplinary data problems, designing and managing algorithms/models and data science APIs in cloud based scalable way • Interested in sequence modeling for TimeSeries, NLP, Computer Vision and discrete optimization in biomedical, IT product, operation research, supply chain, or energy domain #DataScientist #MachineLearningEngineer #CloudArchitecture #DataEngineer #SoftwareEngineer #DataScienceConsultant #ResearcherAndAnalyst ✆ Contact at minesh[dot]1291@gmail.com for Consultancy or Positions

Freelance Data Engineering Developer - Jason
Freelance Data Engineering Developer5.0 (181 reviews)

AI Systems Architect, CSA, SRE, and Fractional CTO helping organizations leverage custom AI, autonomous agents, and cloud infrastructure to build products faster, automate operations, and scale efficiently. Expert in custom AI model development, fine-tuning, RAG implementations, multi-agent systems, AI-powered workflow automation, LLM integration, cloud architecture, cybersecurity, and high-availability SaaS operations. With decades of hands-on engineering experience and deep expertise in modern AI tooling, I bridge the gap between traditional software engineering and next-generation AI systems. I build production-ready AI solutions that deliver measurable business outcomes—not demos, prototypes, or hype. From custom AI platforms and autonomous agent ecosystems to cloud-native SaaS infrastructure and mission-critical production environments, I help organizations deploy secure, scalable systems that create immediate operational leverage. Extensive NDA obligations limit what I can publicly share, but my experience spans startups, growth-stage companies, enterprise organizations, and large-scale SaaS platforms operating under demanding uptime, privacy, and security requirements.

Site Reliability EngineeringPrompt EngineeringData MigrationAWS Data PipelinesData Center OperationsData parsingRubyPHPPythonSQLMySQLServerMongoDBMeteorFacebookPostgreSQLLambdaAutomationElasticsearchTypeScriptYAMLJiraGitLabSESSNSStrategyDynamoDBCloudWatchCloud9Adobe PhotoshopDocumentDBTerraformLinux System AdministrationIllustrationAPI GatewayCI/CDLinux Server AdministrationAws route 53Aws elastic beanstalkElasticacheFargateJira/confluenceCustomer CareDesign PrinciplesSecurity softwareAIDevOpsAWS Cloud InfrastructureHTML/CSSNode.jsWordPressLinuxBashAPIShellHTTPUbuntuLoggingAzureVimHerokuNginxSSHAmazon EC2ProxyAmazon S3CentOSMigrationDebianCloudUnderscore.jsSSL CertificateAmazonnpmCorsScalabilitycPanelBootstrapLodashUnderscoreMemcacheVarnishHAProxyRed HatFirewalliptablesAuthPumaDockerUnicornReverse proxyEs6GSAPReactAmazon SESDeployGoogle Cloud PlatformAmazon SQSWiresharkMEAN.ioAmazon vpcFirewallsSpdyCacheBootstrap 3MEAN StackMEAN.jsAmazon RDSPhusion PassengerAws swfRHELJavaScriptLoad BalancingMintNginx 1.6Resource optimizationECMAScriptViDigitalOceanInfrastructureAWS OpsWorksAmazon SNSProxyserverAmazon EBSpfSenseHttp cachingAmazon RedshiftFedoraAshMemcached phpApache ConfigurationAmazon elbBSDPenetration toolsWebminDeployment automationDisaster recovery planningWHMAWS CloudFrontAWS PoliciesAWS VPCAws sdkAWS DynamoDBAmazon elastic beanstalkAmazon linuxAWS LambdaInfrastructure as CodeTLSOpenBSDBackendlessAWS IoTAws sesAws snsMandrivaAmiAmazon machine imageAws amiAmazon amiNmapMetasploitNetfilterAWS EMRAws CodepipelineAws CodebuildAws iamBootstrap 4New RelicRESTful APIWebsite migrationApache HTTP ServerExpress.jsAWS+161
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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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