# Oliver Carlson > Software Engineer at Flex Location: Berkeley, California, United States Profile: https://flows.cv/olivercarlson Product-focused backend engineer passionate about driving growth initiatives ## Work Experience ### Software Engineer @ Flex Jan 2025 – Present ### Software Engineer @ Waterford.org Jan 2021 – Jan 2025 Designed and implemented REST API endpoints with Node.js (JavaScript/TypeScript), Spring Boot, and Java to evaluate children’s reading and writing abilities, enhancing the scalability and accuracy of Waterford's educational platform. Integrated backend microservices with AWS SNS, SQS, PostgreSQL, and Elasticsearch to deliver data reliably and at scale, reducing latency and improving customer satisfaction. Ensured code quality and regression-free releases by implementing comprehensive unit and integration tests using JUnit, Jest, and Karma/Jasmine. Deployed code and infrastructure to production through our CI/CD pipeline using Git, Jenkins, Terraform, Serverless, and various infrastructure such as Lambda and EC2. Built reusable frontend libraries and an Electron application with JavaScript and lit-element, enhancing user engagement through interactive educational activities. Increased crash-free sessions from 92% to over 99% by implementing logging and error monitoring with Sentry.io and Matomo, enabling faster issue diagnosis and resolution. Improved the performance of high-traffic features by implementing caching, reducing API calls per session from over 7 to 1, and enhancing user experience. ### Software Engineer @ Million Marker Jan 2020 – Jan 2020 | Berkeley, CA Developed and deployed a cross-platform mobile application from scratch using React Native and Expo, successfully published on iOS (TestFlight) and Google Play. Designed and implemented scalable API endpoints with AWS API Gateway, Lambda, and S3, enabling users to seamlessly upload and store meal data and photos. Successfully managed technical scope and stakeholder expectations, delivering a functional product on a tight deadline, resulting in a successful VC pitch presentation. ### Software Engineer, Front-end focused @ SunPower Corporation Jan 2019 – Jan 2019 | Berkeley, CA Developed a React/Redux web application with interactive visualizations, enabling customers to better understand energy bills and potential savings from switching to solar. Built API endpoints using Python, AWS S3 and Lambda's to support energy bill and savings visualizations, optimizing data retrieval for a seamless frontend user experience. Partnered with Product and Design teams to iterate and deploy new features based on customer feedback. ### Medical Scribe @ California Emergency Physician Jan 2016 – Jan 2018 Provide full medical charting to emergency department physician ### Relief Counselor @ Progress Foundation Jan 2013 – Jan 2018 Provide 1-on-1 and group counseling services to support clients dealing with mental health and substance abuse issues. ### Sales Associate @ Exploratorium Jan 2008 – Jan 2013 | San Francisco, CA ## Education ### Integrative Biology University of California, Berkeley ### Biology/Biological Sciences in General UC Berkeley Extension ### Bachelor of Arts - BA in Biology University of California, Berkeley ## Contact & Social - LinkedIn: https://linkedin.com/in/olivercarlson --- Source: https://flows.cv/olivercarlson JSON Resume: https://flows.cv/olivercarlson/resume.json Last updated: 2026-04-11