Backend engineer with production ownership experience (sole backend engineer at Zatch, a live social commerce app) — payments, real-time systems, and AI-augmented backend architecture. Looking for Backend or AI Engineer roles.
Open to opportunities
Nishitha Singh N
@nishithasinghn
Backend Engineer | Node.js, Python | APIs, Databases, and Scalable Server Systems
IndiaWhat I'm looking for
Backend Engineer with 1+ years of production experience. Sole engineer behind a live social commerce app (App Store + Play Store) — built from scratch with Node.js, Redis, WebSockets, and payment infrastructure. Also shipped event-driven pipelines, real-time chat systems, and RAG systems with strong eval scores. I own backend systems end-to-end, from design to deployment. Open to backend and Python backend roles at startups.
Experience
Work history, roles, and key accomplishments
ZA
zatch
zatch
Sep 2025 - May 2026 (8 months)
Built and operated backend platform services from scratch for a live social commerce platform using Node.js, Express, MongoDB, Redis,
and BullMQ, serving real users on App Store and Play Store
Engineered Razorpay payment flows with robust webhook reliability — persist-first on receipt
and dead-letter queue for permanently failed events;
Built and optimized REST APIs handling 10,000+ requests/day at sub-150ms latency;
reducing response times by 40%
Designed and deployed microservices with PostgreSQL and Redis caching, improving system scalability and performance for large-scale
backend services
Improved platform resilience through automated testing,and zero downtime releases on tight startup timelines
Education
Degrees, certifications, and relevant coursework
PB
Presidency University, Bangalore
Bachelor of Computer Science Engineering, Data Science
2022 - 2026
Grade: 8.3 CGPA
Activities and societies: Led the Enkindle Club as President, driving impactful student initiatives and leadership activities.
Completed a Bachelor of Computer Science Engineering (B.Tech) with a focus on Data Science. Achieved a CGPA of 8.3
Tech stack
Software and tools used professionally
Availability
Open to opportunities
Location
IndiaAuthorized to work in
Job categories
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