Resume
Harshit Raj · Backend Engineer
Distributed systemsKafkaObservabilityJava / GoAWS
Summary
Backend engineer with 3 years of experience building high-scale Kafka pipelines, distributed systems, microservices, and observability platforms at Amazon and AdPushup. I optimize for correctness, operational stability, and sustainable pace.
Experience
Software Development Engineer I (FTC) — Amazon (Transport Tech)
Oct 2025 – Present
- Owned backend features for order exchange, returns, and OTP delivery; handled production issues (service connectivity, queue delays, timeouts).
- Containerized a 250MB+ Lambda service into a Docker image; improved deployment consistency and reduced cold-start latency by ~40%.
- Reduced DB footprint 24GB → 600MB via compliant 30‑day TTL for stale order events; cut storage cost and removed false-positive signals.
- Migrated a large Lambda service to AWS CDK and enabled integration tests in Gamma.
Software Engineer — AdPushup
Mar 2023 – Sep 2025
- Engineered a Kafka-based feedback infrastructure processing 3.2B+ daily requests with high reliability and fault tolerance.
- Built a multi-threaded ingestion pipeline for Google Ad Manager; reduced report processing lag by ~90%.
- Implemented Kafka Streams anomaly detection to flag traffic deviations in real time.
- Built Prometheus + Grafana + PagerDuty observability; improved MTTR by ~50%.
Skills
Languages
Java, Go, TypeScript/JavaScript, SQL
Systems
Kafka, Kafka Streams, microservices, distributed pipelines
Observability
Prometheus, Grafana, alerting, logging
Infra
AWS, Docker, CI/CD, Terraform
Open Source
- node-cron: fractional-offset scheduling, UTC parsing refactor, docs improvements.
- charmbracelet/huh: unit tests + CI integration for spinner components (Go).
- glasskube: UX fixes and release-stability improvements (Go + HTMX).