Harshit Kumar

I’m a backend engineer with 3 years building Go-based fintech infrastructure and distributed systems. I focus on designing production-grade services end-to-end—booking, payments, and document workflows—while keeping systems auditable, accurate, and resilient.

At Finplify, I architected Go-based fintech backend systems for high-value transactions and built reconciliation and ledger systems to ensure consistency of user funds across 10+ daily transactions. I manage AWS infrastructure (EC2, ECS, ALB, S3, Secrets Manager) to improve deployment reliability—reducing incident frequency by 30%—and I built monitoring, logging, and alerting pipelines that cut MTTD from hours of debugging to 1–2 minutes. I also automated operational workflows, reducing manual ops effort by ~80%.

Previously at Grappus, I shipped 10+ production backend services in Go and Node.js serving 50k+ users, optimized MongoDB query/index strategies to reduce read latency by ~4x and infra costs by ~50%, and migrated EC2 to ECS with ALB to eliminate deployment downtime and cut deploy time from 10 to 1 minute. I’m also deeply interested in AI infrastructure and agent systems—most notably through Engram (open-source cognitive memory for AI agents, including belief dynamics and temporal decay) and production-ready Go APIs backed by PostgreSQL with pgvector.