Ren Wilson

Builds and maintains application features in TypeScript and React for a distributed product team. Integrates third-party services via REST APIs and GraphQL using adapter layers to keep external data formats out of core code. Develops backend services in Python and Node.js and breaks older modules into smaller microservices. Runs Docker-based services and GitHub Actions CI/CD pipelines, addressing flaky build steps that stall releases. Supports AI-enabled product features by wiring model endpoints and handling timeouts and invalid responses. Improves performance by tuning PostgreSQL queries and adding indexes from execution plan review. Writes Jest and Cypress tests for frequently failing flows, debugs production incidents using logs and dashboards, and documents post-incident learnings. Helps secure internal APIs with OAuth and JWT and reviews pull requests by explaining tradeoffs clearly.

Built web applications using React, Node.js, and Python for internal and customer-facing teams. Designed REST APIs and documented them so other teams could integrate without constant back-and-forth. Led a migration of multiple services to AWS and containerized services with Docker. Established CI/CD pipelines using Jenkins, later moving to GitHub Actions. Optimized database performance by rewriting slow SQL Server and PostgreSQL queries and cleaning up schema design. Integrated payment and messaging provider APIs with robust retry/failure handling. Added Pytest and Selenium regression suites before releases. Troubleshot and fixed a long-running memory leak in a Node.js service, used Power BI and Excel to analyze product usage data, mentored newer engineers through code reviews and API design guidance, and participated in on-call rotation including incident fixes and short postmortems.

Developed Java and Python services for enterprise applications using Spring and Flask. Built internal tools with jQuery, JavaScript, and AngularJS on top of REST APIs. Used Jenkins and Git for source control and builds. Worked with MySQL and PostgreSQL, tuning queries and indexes. Reproduced and fixed customer-reported bugs locally before patching. Wrote JUnit tests and Selenium scripts for regression runs. Packaged applications for deployment using early Docker and Linux shell scripts, and collaborated with support engineers to identify root causes of recurring tickets.