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Debasis Tripathy
Mid-level Software Engineer specializing in AI, backend systems, and FinTech
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Full-stack engineer with hands-on ownership of a production expense management platform built on Next.js, NestJS, PostgreSQL, and MongoDB. Stands out for solving real production scale issues—optimizing 2M+ record query performance, redesigning cross-database sync with an outbox/event-driven approach, and cutting API latency from 2-3 seconds to under 300 ms.
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Key Strengths
- End-to-end ownership of full-stack expense management features in production
- Strong full-stack architecture across Next.js, NestJS, PostgreSQL, and MongoDB
- Designed cross-database consistency strategy using PostgreSQL as source of truth
- Implemented event-driven synchronization with reliable retries
- Drove architectural shift from synchronous processing to asynchronous workflows
- Improved API response times from 2-3 seconds to under 300 ms
- Diagnosed database bottlenecks using logs, APM, and EXPLAIN ANALYZE
- Optimized large-scale PostgreSQL queries on datasets reaching 2 million records
- Improved performance with composite indexes and reduced unnecessary SELECT * usage
- Applied Redis caching to reduce repeated dashboard computations
- Built proactive monitoring with slow query logs, latency alerts, and performance dashboards
- Experience supporting high-volume approval and expense workflow systems
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