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Sam Sharif
Senior Full-Stack Engineer specializing in React and Python
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About
Backend/data engineer focused on production AWS systems: builds multi-tenant FastAPI services on ECS behind API Gateway/ALB with serverless orchestration (Lambda, SQS, Step Functions) and strong reliability practices (JWT/JWKS auth, idempotency, backoff retries, structured logging). Also delivers AWS Glue/PySpark ETL pipelines with schema/data-quality controls and has modernized legacy analytics logic into Python with parity validation; improved a key dashboard SQL query from ~12–25s to ~2–3s.
Experience
Education
Key Strengths
- Designed and operated production AWS architectures combining FastAPI/ECS with Lambda, SQS, Step Functions, RDS, and S3
- Built multi-tenant SaaS backends with tenant scoping and JWT/JWKS-based authentication
- Reliability engineering: timeouts, retries with exponential backoff, idempotency keys, structured logging with correlation IDs
- Production deployment maturity: immutable Docker images, dev→stage→prod promotion, rolling/blue-green/canary releases, Lambda versioning with weighted aliases
- ETL/data platform delivery with AWS Glue (crawlers, catalog, PySpark jobs) including schema validation and data quality/reconciliation checks
- Modernized legacy business logic into Python services with parallel runs and parity validation (hash comparisons, statistical summaries, reconciliation reports)
- SQL performance optimization: reduced a dashboard query from ~12–25s to ~2–3s via predicate rewrite and composite indexing
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