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Sai Venkata Varun Danda
Mid-Level Software Engineer specializing in full-stack, AI/LLMs, and Android
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About
Backend/AI engineer who built a Spring Boot timesheet API on AWS (Postgres, Docker, Nginx) used by hundreds of daily users and resolved severe deadline-driven latency/5XX incidents via query optimization, connection pool tuning, and Redis caching. Also shipped application-layer LLM features (Mistral + LangChain chatbot) and designed a Planner/Executor/Verifier troubleshooting agent with verification-based guardrails to prevent hallucinated root-cause analyses.
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Key Strengths
- Debugged and resolved production latency/5XX spikes by eliminating Hibernate N+1 queries and tuning DB/connection pool
- Database performance tuning using query logs and EXPLAIN ANALYZE (indexes, explicit joins, pagination)
- Designed and shipped an LLM chatbot with context management, prompt orchestration, memory, and guardrails
- Built reliable multi-step troubleshooting agent with Planner/Executor/Verifier, retries/backoff, verification, and escalation
- Strong production observability practices (structured logging, metrics, tracing) enabling fast on-call diagnosis
- Operationalized AI with offline evals, prompt/output constraints, monitoring metrics, and fallbacks to prevent hallucinated outputs
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