Rohan Karan
Senior Software Engineer at Lighthouz AI
Kolkata, West Bengal, India
Summary
👤
Senior🎓
Top SchoolRohan Karan is a Senior Software Engineer based in Kolkata with six years of experience building scalable backend systems, currently focused on Go services at a YC‑backed AI startup. He has a strong track record in event-driven architectures and real‑time pipelines—designing Flask and Lambda-based systems that cut latency and backend load while meeting strict SLAs. Rohan built an intelligent procurement chatbot that automated 80% of manual tasks and developed modules for data extraction, ERP entry, and invoice auditing that prevented overbilling. He’s contributed to open source backend projects (adding JWT auth and core fixes to a popular self-hosted fitness tracker) and routinely combines FastAPI, ChromaDB, Postgres, and task schedulers to enable production-ready LLM and document Q&A services. Known for pragmatic engineering, he blends hands-on API design with operational thinking to deliver reliable, secure systems at scale.
6 years of coding experience
3 years of employment as a software developer
Bachelor of Technology - BTech, 8.22, Bachelor of Technology - BTech, 8.22 at Indian Institute of Engineering Science and Technology (IIEST), ShibpurHigher Secondary, High School/Secondary Diplomas and Certificates, Higher Secondary, High School/Secondary Diplomas and Certificates at Bawali High School
English, Bengali, Hindi
Stackoverflow
33reputation
4kreached
4answers
2questions
Github Skills (25)
api-rest10
python10
apidoc10
api-design10
restful-api10
django10
rest-framework10
web-token10
user-authentication10
authentication10
api10
jsonwebtoken10
jwt10
rest-api10
mongodb6
Programming languages (8)
Github contributions (5)
wger-project/wger
Oct 2022 - Oct 2022
Self hosted FLOSS fitness/workout, nutrition and weight tracker
Role in this project:
Back-end Developer
Back-end DeveloperContributions:21 commits, 4 PRs, 11 comments in 22 days
Contributions summary:Rohan primarily contributed to back-end development, focusing on implementing and integrating JWT (JSON Web Token) authentication for the REST API. They modified settings, URLs, and API view files to incorporate JWT functionality. Additionally, the user added documentation for JWT usage and deprecated the existing /login/ endpoint. Further contributions included adding the user's name to the AUTHORS.rst file and modifying core functionalities such as date of birth validation.
pythontrackerdjangohostedfitness
RohanKaran/certificate-generator-frontend
Jan 2022 - Jan 2023
Certificate Generator website created using React and Python FastAPI.
Contributions:3 reviews, 88 commits, 11 PRs in 1 year
reactpythoncertificate-generatoronline-certificatepython-fastapi
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