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Sunil Chinthaparthi
Mid-level Python Developer specializing in AWS microservices and cloud automation
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Backend engineer focused on Python/FastAPI microservices running on Kubernetes (AWS EKS) with strong GitOps/CI/CD ownership (GitHub Actions + ArgoCD). Demonstrated measurable performance wins (p95 latency cut from >1s to <200ms) and production reliability work across Kafka/Redis streaming and cloud-to-on-prem migrations (RDS/S3 to Postgres/MinIO) using parallel validation and checksum-based consistency checks.
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Key Strengths
- Owned end-to-end FastAPI microservice (API design, data models, WebSockets, integrations, background workers)
- Performance optimization: identified N+1 queries and reduced p95 latency from >1s to <200ms via eager loading and indexing
- Kubernetes/EKS production deployment with Helm, probes, autoscaling, and resource tuning
- Built GitOps CI/CD with GitHub Actions + ArgoCD enabling predictable deployments and clean rollbacks
- Resolved ArgoCD drift/rollback loops by enforcing config-as-code and PR-based Helm values updates
- Cloud-to-on-prem migration execution (RDS/S3 to Postgres/MinIO) with parallel validation, checksums, and rollback plan
- Kafka streaming reliability: handled out-of-order/duplicate events using versioning + Redis atomic idempotency; mitigated consumer lag by scaling/partitioning
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