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Kaustubh Rai
Junior Software Engineer specializing in scalable distributed systems and cloud platforms
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Backend engineer with experience at UnitedHealth Group redesigning a high-traffic Spring Boot microservice from blocking to reactive architecture during peak season, cutting median latency by 47% for a service used by ~10M customers annually. Strong in Kubernetes-based deployment/scaling and pragmatic rollout strategies (blue-green/incremental traffic shifting) with performance and database troubleshooting.
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Key Strengths
- Redesigned a high-traffic UnitedHealth Group service from blocking to reactive architecture
- Reduced median latency by 47% on a service used by ~10M customers annually
- Handled peak-season performance incident by scaling pods, then executing post-season redesign to address root causes
- Applied blue-green deployment with incremental traffic shifting and rollback strategy
- Identified redundant duplicate DB calls contributing to elevated DB pod memory utilization
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