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Hi, I'm Stevil Lee, a Senior Full Stack Engineer with over a decade of experience building impactful digital products. I specialize in modern web technologies like React, Next.js, and Node.js, and love working on both frontend and backend to deliver seamless user experiences. Whether it's launching MVPs or scaling platforms to millions of users, I thrive in fast-paced environments where I can solve complex problems with clean architecture and great collaboration. I have worked across various industries including AI, healthcare, fintech, and retail, and am passionate about integrating emerging technologies like AI chatbots and cloud-native microservices into applications. When I’m not coding, I enjoy mentoring other engineers and continuously improving developer workflows to boost velocity without sacrificing quality.…Hi, I'm Stevil Lee, a Senior Full Stack Engineer with over a decade of experience building impactful digital products. I specialize in modern web technologies like React, Next.js, and Node.js, and love working on both frontend and backend to deliver seamless user experiences. Whether it's launching MVPs or scaling platforms to millions of users, I thrive in fast-paced environments where I can solve complex problems with clean architecture and great collaboration. I have worked across various industries including AI, healthcare, fintech, and retail, and am passionate about integrating emerging technologies like AI chatbots and cloud-native microservices into applications. When I’m not coding, I enjoy mentoring other engineers and continuously improving developer workflows to boost velocity without sacrificing quality.

Stevil Lee

Full Stack Developer, Developer, Front-End Developer, +7

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Hi, I'm Stevil Lee, a Senior Full Stack Engineer with over a decade of experience building impactful digital products. I specialize in modern web technologies like React, Next.js, and Node.js, and love working on both frontend and backend to deliver seamless user experiences. Whether it's launching MVPs or scaling platforms to millions of users, I thrive in fast-paced environments where I can solve complex problems with clean architecture and great collaboration. I have worked across various industries including AI, healthcare, fintech, and retail, and am passionate about integrating emerging technologies like AI chatbots and cloud-native microservices into applications. When I’m not coding, I enjoy mentoring other engineers and continuously improving developer workflows to boost velocity without sacrificing quality.…Hi, I'm Stevil Lee, a Senior Full Stack Engineer with over a decade of experience building impactful digital products. I specialize in modern web technologies like React, Next.js, and Node.js, and love working on both frontend and backend to deliver seamless user experiences. Whether it's launching MVPs or scaling platforms to millions of users, I thrive in fast-paced environments where I can solve complex problems with clean architecture and great collaboration. I have worked across various industries including AI, healthcare, fintech, and retail, and am passionate about integrating emerging technologies like AI chatbots and cloud-native microservices into applications. When I’m not coding, I enjoy mentoring other engineers and continuously improving developer workflows to boost velocity without sacrificing quality.

Available to hire

Hi, I’m Stevil Lee, a Senior Full Stack Engineer with over a decade of experience building impactful digital products. I specialize in modern web technologies like React, Next.js, and Node.js, and love working on both frontend and backend to deliver seamless user experiences. Whether it’s launching MVPs or scaling platforms to millions of users, I thrive in fast-paced environments where I can solve complex problems with clean architecture and great collaboration.

I have worked across various industries including AI, healthcare, fintech, and retail, and am passionate about integrating emerging technologies like AI chatbots and cloud-native microservices into applications. When I’m not coding, I enjoy mentoring other engineers and continuously improving developer workflows to boost velocity without sacrificing quality.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Sr. Full Stack Engineer at Work & Co

August 1, 2022 - Present

Architected and launched a generative AI-powered health information platform for Pfizer, scaling to 50,000+ daily user requests at sub-200ms latency. Developed full-stack features with Next.js, TypeScript, and TailwindCSS in a modular micro-frontend system and streamlined CI/CD workflows with GitHub Actions and AWS CodePipeline, reducing deployment times by 35%. Engineered secure authentication using AWS Cognito and integrated third-party data platforms. Delivered real-time interfaces for global sports/media clients, improving mobile load times by 40%. Migrated legacy e-commerce platforms to Next.js & Vercel, increasing organic traffic by 30%. Implemented backend systems with Node.js, Express, PostgreSQL, Redis, Kafka, and tRPC, embracing serverless infrastructures to lower costs by 15%. Collaborated with ML teams to integrate AI and analytics modules, fine-tuned SEO, and constructed comprehensive test suites with over 95% code coverage. Mentored engineers and championed TDD and agile

Frontend Lead Developer at Raisa Energy LLC

June 30, 2022 - July 24, 2025

Led development of scalable enterprise web apps for investment evaluation within a $2B+ oil & gas portfolio. Modernized frontend architecture from Vanilla JS/Vue.js to React, Next.js, and TypeScript, improving performance and scalability. Established a reusable component library using Storybook, enhancing UI consistency across 10+ products. Developed lead evaluation tools with React, Node.js, and PostgreSQL, cutting latency by 30%. Implemented user-centered design and accessibility, consistently achieving >90 Lighthouse scores. Managed full SDLC and integrated backend services using Flask, Express, and Python. Automated CI/CD processes and deployed applications on AWS, introducing serverless architectures and monitoring. Maintained 90%+ test coverage using Jest and Cypress and mentored junior engineers.

Senior FullStack Engineer at Invitae

January 31, 2020 - July 24, 2025

Developed and launched accessible, high-quality web applications and design systems for Invitae's Customer Experience Portal, achieving WCAG compliance and a 30% reduction in load times. Modernized frontend with React and Redux, and delivered scalable backends with Node.js and Python for personalized risk reporting. Built lead evaluation tools improving latency by 30%. Implemented comprehensive testing with Cypress and Storybook, achieving 95% test coverage. Automated one-click safe deployments, reducing deployment time by 40%. Collaborated with cross-functional teams to maintain code standards and deployed applications on AWS with CI via GitHub Actions.

Full Stack Engineer at Trust & Will

March 31, 2018 - July 24, 2025

Contributed to scaling digital legal/fintech platform for estate planning, supporting 50,000+ users and secure monthly transactions. Developed responsive, WCAG-compliant UIs with React, Redux, Next.js, and TailwindCSS, improving onboarding and customer satisfaction. Built RESTful APIs and backends using Node.js, Express, TypeScript, and PostgreSQL with compliance for SOC2 and GDPR. Integrated payment and e-signature services with Stripe and HelloSign. Automated legal workflows via AWS Lambda and Step Functions, reducing manual processes by 60%. Introduced rigorous testing practices maintaining 90%+ code coverage. Led CI/CD implementation with GitHub Actions and Terraform infrastructure management. Ensured security and privacy with vulnerability remediation and code reviews.