# Stephen L. > Sr. Software Engineer Location: San Francisco, California, United States Profile: https://flows.cv/stephenl2 https://mr-perfection.github.io/ ## Work Experience ### Software Engineer @ Meta Jan 2026 – Present ### Software Engineer - Rufus AI / LLM training infra @ Amazon Jan 2024 – Jan 2025 | Palo Alto, California, United States Worked on training infra/framework to train LLMs at scale. ### Software Engineer @ Amazon Web Services (AWS) Jan 2022 – Jan 2024 ECS Fargate Worked on automated AMI builder, security patching, and Fargate Task manager systems. ### Software Engineer @ Ambient.ai Jan 2021 – Jan 2022 Product team Built product & infrastructure for the AI application. ### Software Engineer @ Facebook Jan 2020 – Jan 2021 Customer Care Platform Built tools for content moderation. ### Software Engineer @ Yelp Jan 2018 – Jan 2020 | San Francisco Bay Area Monetization team ### Software Engineer @ Fleetsmith Jan 2017 – Jan 2018 Early employee. ### Software Engineer @ Paladin Cyber Jan 2017 – Jan 2017 | San Francisco Bay Area First employee. ## Education ### Bachelor of Science (B.S.) in Computer Engineering UC Irvine ## Contact & Social - LinkedIn: https://linkedin.com/in/stephensungsoolee - Portfolio: http://stephenslee.weebly.com --- Source: https://flows.cv/stephenl2 JSON Resume: https://flows.cv/stephenl2/resume.json Last updated: 2026-03-31