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Kevin Lee

Senior Backend Engineer specializing in Python and AWS serverless/data pipelines

DosenNorthwestern UniversityChicago, IL6 Years ExperienceSenior LevelWorks Flexible

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About

Serverless-focused backend/data engineer who has delivered production Python services on AWS (FastAPI on Lambda/API Gateway) plus Glue-based ETL pipelines from S3 to relational databases. Strong in operational reliability (timeouts, retries, monitoring/alerts) and modernization work, including parallel-run parity validation for migrating legacy batch logic to Python services. Demonstrated measurable SQL tuning impact (15 min to under 3 min).

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Key Strengths

  • Built and operated production serverless Python APIs on AWS (FastAPI on Lambda behind API Gateway)
  • Reliability-focused design: explicit timeouts, small functions, Step Functions for long workflows, layered retries
  • Delivered IaC + CI/CD deployments using CloudFormation with automated testing/deployments
  • Implemented IAM-based authentication/authorization at API Gateway with defensive permission checks in services
  • Built AWS Glue ETL from S3 to relational databases with data quality checks and schema evolution handling
  • Incident ownership for failed batch/ETL runs using CloudWatch alerts and Glue logs; restored pipelines and added schema validation to prevent recurrence
  • SQL performance optimization: reduced aggregation query runtime from ~15 minutes to <3 minutes via indexing and batching

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Experience

Senior Software EngineerDosen · Jul 2024 – Present
Software DeveloperGoogle · Aug 2021 – Jul 2024
Software DeveloperJPMorgan Chase & Co. · Jul 2020 – Jul 2021
Software Engineering InternThe Aerospace Corporation · May 2019 – Jul 2020internship

Education

Northwestern Universitybachelor, Computer Science (2018)

Languages

English

Memberships

  • IEEE

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Kevin LeeSenior Backend Engineer specializing in Python and AWS serverless/data pipelines