Education ERP – Multi-Tenant SaaS Platform
Koushik Ahmed
New talent@koushik_ahmed17
Backend Software Engineer
New talentDhaka, BangladeshHires and manages projects0 views
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0
Projects done
New
Talent rating
Open
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About
Backend-focused Full Stack Engineer with 2 years of experience building secure, multi-tenant APIs and data-intensive systems with NestJS, TypeScript, and PostgreSQL. Sole backend owner of a 25+ module Education ERP, plus a live sports-data ingestion platform and a 45+ module vehicle marketplace. Strong in concurrency-safe transactions, event-driven design, and background jobs (BullMQ/Redis).
Experience
Junior Full Stack Developer (Backend Focus)
Startsmartz Technologies
2024-12 – Present
• Deliver backend systems for 3 production products (multi-tenant ERP, sports-data platform, vehicle marketplace) with NestJS, PostgreSQL, and Redis, owning features from requirements to deployment. • Built JWT (access + refresh), OAuth, and OTP auth with data-driven RBAC and Redis-cached permission checks on every endpoint. • Modeled schemas of up to 129 entities in PostgreSQL/TypeORM with versioned migrations and seed pipelines; improved query performance via keyset pagination and indexing. • Implemented Socket.IO gateways, BullMQ queues, and cron workflows to keep heavy work off request paths. • Hardened APIs (rate limiting, validation, central error handling); shipped with Swagger docs, Docker, and Jest tests; aligned API contracts with frontend engineers.
Software Developer Intern
Excite AI Limited
2024-03 – 2024-05
• Built backend features and integrated third-party APIs; worked in Git-based code review and delivery cycles.
Education
Independent University, Bangladesh
B.Sc. in Computer Science and Engineering
2020 – 2024
Portfolio
Koushik Ahmed
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