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Preetham Dandu
Junior Software Engineer specializing in backend, distributed systems, and cloud platforms
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MS candidate with strong backend/data engineering focus who builds research and data systems with production-grade rigor (reproducibility, observability, restartability). Has hands-on experience securing and scaling FastAPI-based gateways in front of Java microservices, leading SQL Server→Snowflake migrations with dual-write/feature-flag rollouts, and hardening Kafka-based fleet-tracking systems against out-of-order and duplicate events.
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Key Strengths
- Designed reproducible ML/data research pipeline with production-like reliability, observability, and restartability
- Makes pragmatic architecture tradeoffs (velocity vs rigor; compute/storage cost vs determinism) to optimize outcomes
- Strong API reliability and security practices (contract-first validation, idempotency, versioning, rate limiting, JWT/RBAC)
- Improved security and debuggability on FastAPI gateway + Java microservices by closing auth gap and adding end-to-end traceable logs
- Led SQL Server to Snowflake migration with risk controls (containerized reproducible runs, schema casting, checksums, dual-write, feature-flagged rollout, parity checks)
- Deep understanding of distributed failure modes (Kafka re-delivery/out-of-order) and mitigation (dedupe, idempotency keys, monotonic sequencing) to reduce inconsistent states
Reference Highlights
- Very good ownership of backend systems end-to-end
- Strong judgment on architecture, security, and long-term decisions
- Successfully anonymized and cleaned data across multiple projects
- Built applications to visualize medical data
- Able to implement an entire visualizer
- Performs very well in ambiguous/early-stage (zero-to-one) environments
- Trusted to lead backend evolution for a critical product
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