Deeresh Gajjala

About

Senior software engineer with Amazon experience who owned end-to-end improvements to a real-time payment authorization service, rebuilding it as a reactive Spring WebFlux microservice with saga orchestration and Kafka event streaming, deployed on AWS EKS with strong observability. Also built React+TypeScript and Node/Express full-stack workflow apps (onboarding, campaign management, admin review) and has experience shipping quickly in ambiguous startup environments while maintaining reliability and data correctness.

Experience

Education

Key Strengths

• End-to-end ownership of production services (API design, backend implementation, containerization, deployment, operations)
• Low-latency, high-reliability payment/authorization system design under peak load
• Event-driven microservices architecture with Kafka and saga-based transaction orchestration
• Strong production observability using Prometheus/Grafana and SLO-style metrics (P95 latency, error rate, throughput, availability)
• Designs resilient systems with idempotency, retries/backoff, circuit breakers, rate limiting, and bulkhead isolation
• Builds modular full-stack apps (React/TypeScript + Node/Express + Postgres) with layered validation and safe schema migrations
• Operates cloud-native workloads on AWS EKS with IaC (Terraform), Helm-based deployments, and CI/CD pipelines
• Ships quickly in ambiguous startup environments by designing flexible workflows and extensible validation/document requirements