CURRENT DIRECTIVE
Data/Backend Engineer · Co-founder, Boringrats (acquired) · Building OPNCODEHUB,OpenDPP,RAVEN & JUSTAPI
Co-founded Boringrats and scaled its backend, data infrastructure, and API layer to 1M+ active users, leading to its acquisition. Currently building OPNCODEHUB, a self-hosted GitHub alternative for developers. Also working on production data pipelines using modern data engineering tools. Building OpenDPP, an enterprise product life-cycle data platform
At a Glance
Selected work
Projects are being published — check back soon.
Get in touchCapabilities
35 core · 30 working
Python 
TypeScript 
Rust 
Go 
Mojo 
JavaScript 
SQL 
Django 
FastAPI 
Node.js 
Apache Airflow 
Apache Spark 
dbt 
Kafka 
AWS Glue 
AWS Redshift 
AWS Athena 
Azure Data Factory 
Google Dataflow 
Google Dataproc 
Google Cloud Composer 
Apache NiFi 
Apache Cassandra 
Apache Druid 
Apache Superset 
Metabase 
MinIO 
Airbyte 
Dagster 
Confluent 
Apache Flink 
Prefect Summary
Right now I'm heads-down on data pipelines and backend infrastructure. Open to mid-level Data Engineer or Backend Engineer roles at EU companies happy to go remote or relocate. I can interview within two weeks.
Work history
Free, self-hosted alternative to GitHub with SSH access, CI pipelines, and AI-assisted code review, plus a community layer for discovering and sharing projects. Users host their own code; OpenCodeHub never stores or touches user files.
Co-founded and scaled BoringRats to 1M+ active users. Designed real-time event ingestion pipelines, user analytics warehouses, and MLOps workflows. Built scalable backend systems and led infrastructure management before successful acquisition in Nov 2025.
Delivered 8+ full-stack projects for US and UK SaaS/e-commerce clients. Reduced page load times by 40% with React optimization. Built REST APIs serving 10K+ daily requests using Django and PostgreSQL.
Hiring me
FAQ
Testimonials
"Deeply curious, very sharp in technical skills, and always eager to dive into complex problems."
"Hardworking and dependable — learns quickly, takes responsibility seriously, and always maintains a positive attitude."
"Swadhin's ability to architect scalable data systems was instrumental in scaling BoringRats to 1M+ users. His technical leadership and hands-on approach to infrastructure were key factors in our successful acquisition."
Blog
JustAPI is a Python web framework where the web server, the router, the TLS termination, the request validation, the JSON serialization, and the database access all run in Rust. Your Python code handles the application logic. That is the entire premise, and it is the one sentence that explains every design decision in the project.
We built Boringrats for open source developers, scaled to 1M users on donations alone, and eventually had to let it go. This is the honest version of what that actually looked like.
OpenCodeHub is an open-source, self-hosted GitHub alternative built with Astro, TypeScript, and Drizzle ORM. Features SSH, stacked PRs, CI/CD pipelines, and AI code review — on your own server.
Contact
Best way to reach me is email. I'm interested in backend systems,Data Engineering, AI product work, research tooling, and serious technical collaborations.
Email swadhinbiswas.cse@gmail.com Book a call