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Somya Upadhyay
Senior Software Engineer specializing in cloud infrastructure and large-scale data pipelines
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About
Backend engineer on Amazon’s Geospatial Data team (Amazon Maps) who built a real-time road-layer service ingesting third-party and internal signals to deliver road closures/traffic overlays to delivery drivers on a ~3-minute cadence while minimizing mobile data egress. Demonstrates strong production reliability skills (rate limiting, idempotency, cache stampede prevention) and security depth (IAM, RBAC, tenant row-level security), plus careful handling of edge cases like manual override protection against automated feed overwrites.
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Key Strengths
- Designed and delivered real-time road-closure overlay service for Amazon Maps with ~3-minute refresh cadence
- Optimized high-scale read path by precomputing third-party to internal segment ID mappings at ingestion time
- API reliability engineering: rate limiting (token/leaky bucket) and idempotent write operations to prevent duplicate actions
- Led Redis/ElastiCache scaling migration with dual writes and cache warm-up to prevent cache stampede
- Implemented tenant-aware row-level security using RBAC and database policies
- Proactively identified race condition where bulk updates could override manual safety closures; implemented TTL + priority/version locking
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2 publications
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