United States
Backend Engineer with 5+ years building high-performance microservices and REST APIs in Go and Java — systems that move money, people, and goods at scale. Currently at Optum, building Go-based backend services that power healthcare operations workflows in a HIPAA-aware environment. Previously at United Airlines, architected Go microservices on AWS EKS supporting high-concurrency airline data pipelines with sub-100ms P95 latency. At Costco Travel, integrated 15+ third-party hotel supplier APIs with circuit breaker and retry logic, cutting P95 response time from 280ms to 95ms. At PepsiCo, implemented OAuth2 + RBAC securing access for 200+ operators across 50+ warehouses. What I bring to your engineering team: 🔹 Go (4+ yrs) — Gin, gRPC, microservices, high-concurrency API design 🔹 Cloud-native delivery — Kubernetes (AWS EKS), Docker, Helm, CI/CD pipelines, Prometheus/Grafana 🔹 Data layer — PostgreSQL, MongoDB, MySQL, Redis; query optimization, indexing, connection pooling 🔹 Security fundamentals — OAuth2, RBAC, API authentication (M.S. IT with Cybersecurity concentration) 🔹 Observability — Distributed tracing, alerting, on-call incident response I write clean, testable Go code with real coverage discipline — took one service from 62% to 88% test coverage. I've held on-call rotations and resolved production incidents under pressure. Open to Senior Backend / Platform Engineering roles in Healthcare Tech, Fintech, Travel Tech, or Logistics where Go and Kubernetes are first-class citizens. Prefer full-time positions (open to contract-to-hire). 📩 [email protected] 🔗 github.com/rajbolamala-star
- Architect and deliver distributed Go microservices powering critical healthcare operations workflows, supporting 200+ daily care delivery touchpoints with end-to-end ownership from design through production. - Lead technical direction across the team — driving design reviews, code reviews, and architecture discussions while mentoring engineers and championing engineering standards in a HIPAA-aware environment. - Designed event-driven processing pipelines on Apache Kafka, AWS SQS, and SNS with idempotent consumers to ensure reliable async workflows across patient-facing and provider-facing services. - Provisioned cloud infrastructure as code using AWS CDK and CloudFormation; shipped services on AWS EKS via Docker, Kubernetes, and Helm with end-to-end CI/CD coverage. - Carry production ownership through on-call rotations, instrumenting services with Prometheus, Grafana, and CloudWatch for distributed tracing, structured logs, and proactive alerting on mission-critical systems. - Tuned PostgreSQL query performance through targeted indexing and refactoring, cutting P95 latency from 420ms to 290ms for high-volume healthcare data lookups. - Technologies: Go, Python, AWS (EKS, ECS, Lambda, SQS, SNS, DynamoDB, S3, CDK), Kafka, PostgreSQL, Redis, Docker, Kubernetes, Jenkins, Prometheus, Grafana, Git
🚩Architecting Go-based microservices for healthcare data processing pipelines, serving X concurrent requests with sub-100ms P95 latency on AWS EKS 🚩Designed RESTful and gRPC APIs integrating downstream health plan services; implemented circuit breaker patterns reducing downstream failure blast radius by ~40% 🚩Built comprehensive test suites (unit + integration) raising code coverage from 62% to 88% across core service modules 🚩Implemented Prometheus metrics and Grafana dashboards enabling real-time SLO tracking and proactive alerting for on-call teams 🚩Participating in Agile sprint cycles, code reviews, and weekly architecture design sessions with cross-functional teams
🚩Integrated 15+ third-party hotel supplier APIs using Go with circuit breaker and exponential retry logic, reducing P95 response time from 280ms to 95ms (66% improvement) 🚩Built fault-tolerant booking and cancellation workflows handling peak travel booking seasons with zero data-loss guarantees 🚩Implemented Redis caching layer on high-traffic search endpoints, reducing database read load by ~35% and improving cache hit rate to 89% 🚩Collaborated with product and QA teams in an Agile environment, delivering 3 major feature releases on schedule
🚩Implemented OAuth2 authorization framework and RBAC model securing API access for 200+ operators across 50+ warehouses in supply chain logistics platform 🚩Migrated legacy Java monolith modules to Go microservices, reducing service startup time by 60% and memory footprint by 40% 🚩Optimized PostgreSQL and MySQL queries through indexing strategies and query rewrites, cutting average query execution time from 420ms to 290ms 🚩Built RESTful APIs powering real-time warehouse inventory tracking integrated with ERP systems