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ken lee

Senior Software Engineer specializing in distributed systems and FinTech

RidgelineUC Berkeley14 Years ExperienceSenior LevelWorks On-Site

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About

JavaScript/TypeScript engineer from Ridgeline who built a retry feature for failed staging-to-production promotions with pre-promotion health checks. Brings a backend-scaling mindset to runtime performance work (metrics-first bottlenecking, Big-O analysis, async/parallelism, caching) and leverages Cursor/AI tooling to ramp quickly on large codebases.

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Key Strengths

  • Improves runtime performance via metrics-driven bottleneck identification
  • Applies algorithmic analysis (Big O) and selects optimizations (async, parallelism, caching)
  • Able to ramp quickly on large existing codebases using modern tooling (Cursor/AI)
  • Pragmatic documentation approach emphasizing simple, usable code examples
  • Structured user-issue diagnosis (screenshots, logs, repro steps, core files)
  • Effective in unstructured environments through stakeholder communication and iterative delivery

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Experience

Full Stack EngineerRidgeline · Sep 2024 – Oct 2025
Backend EngineerEarnin · Jun 2021 – May 2024
Backend EngineerXcalar · Jun 2020 – Nov 2020
Backend EngineerPetuum · Aug 2019 – Jun 2020
Staff EngineerVMware · Jun 2011 – Aug 2019
Full Stack EngineerTAGGED · Jan 2009 – Jan 2010

Education

UC Berkeleybachelor, EECS
UC Berkeleybachelor, EECS

Skills

A/B TestingAmazon EC2Amazon EKSAmazon SQSAPI DesignAWSBackend DevelopmentClusteringC++CypressDistributed SystemsDockerFull-Stack DevelopmentGitHub CopilotJava

Languages

English

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ken leeSenior Software Engineer specializing in distributed systems and FinTech