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I will develop backend apis in java, node or python
Sahil C
About this gig
Need a reliable backend built by an engineer who has shipped production systems at scale? I build clean, secure and well-documented REST APIs in Java (Spring Boot), Node.js or Python.
About me: IIT Kharagpur graduate and backend engineer since 2019 at Tesco and Concentric.ai. I've built Kafka services processing 1M records a day across 500 stores, pipelines over petabyte-scale data, and fixed database bottlenecks for 10-100x faster writes.
What I can build for you:
- REST APIs and microservices
- Database design (MySQL, MongoDB, Couchbase, Redis)
- Authentication and role-based access (JWT)
- Third-party API integrations
- Event-driven systems with Kafka
- Docker setup and deployment on AWS
What you get:
- Clean, commented source code
- API documentation (Swagger/OpenAPI)
- Setup and deployment instructions
- Clear, regular updates
Not sure which package fits? Message me before ordering and I'll help you scope it.
Get to know Sahil C
Sahil C
Senior Software Engineer
- FromIndia
- Member sinceOct 2026
- Avg. response time1 hour
Languages
Hindi, English
I am a Senior Software Engineer with extensive experience in architecting distributed systems and microservices. I specialize in building scalable data pipelines using Kafka, Spark, and Spring, and have a proven track record of optimizing complex workflows and improving system performance for petabyte-scale data.
FAQ
Which language should I choose for my project?
If you already have a codebase, I'll match it. For new projects I usually recommend Java Spring Boot for large or enterprise systems, Node.js for fast lightweight APIs, and Python for data-heavy or ML-related work.
What do you need from me to get started?
A short description of what the API should do, the main data it handles, any existing code or database, and where it will run. If you're unsure about any of this, message me first and we'll scope it together.
Can you work on my existing codebase?
Yes. I can add features, fix bugs, improve performance or refactor existing Java, Node.js or Python backends. Share access to the repository and a short summary of what you need, and I'll review it before we start.
Do you also deploy the backend?
The Premium package includes Docker setup and a deployment guide so you can run it anywhere. If you'd like me to deploy it to your own AWS account, message me before ordering and we'll agree on the details.
Will I own the source code?
Yes. Every package includes the full source code, and once the order is complete it's yours to use, modify and deploy however you like.
