Keven Chhen

Software Engineer at Ahold Delhaize

Delivered full-stack features for a nationwide grocery order fulfillment platform, collaborating with UI/UX, QA, and product teams. Built a Python microservice for real-time inventory syncing between stores and warehouses, supporting accurate availability across thousands of SKUs. Recognized as the most productive engineer in the first 6 months after delivering a reusable fulfillment scheduler module adopted across services. Automated repetitive workflows with custom GitHub/Jira tooling and streamlined CI pipelines, improving release flow for a 30+ engineer team.

Full Stack Web Developer at Astriata

Built responsive pages with Next.js, TypeScript, and Tailwind, tightly integrated with a powerful Keystone CMS backend for dynamic content management. Created reusable components and design system in Storybook. Improved UI performance and usability across screen sizes.

Full Stack Engineer at Energy Raven

Built a user-friendly dashboard for an AI-powered energy platform using React, TypeScript, and D3.js, ensuring significant engagement boost. Designed onboarding for inspectors and shipped greenfield tools using Python and OpenAI to parse emails, web pages, and PDFs. Integrated third-party APIs with strong test coverage to ensure reliability. Automated CI/CD with GitHub Actions and Terraform, generating energy reports from inspection results. Collaborated daily with ops and resolved production issues through on-call support.

Senior Software Development Engineer at Thoughtworks

Migrated a SaaS e-learning platform to event-driven microservices on AWS using Lambda, EventBridge, SQS/SNS, and DynamoDB. Improved user experience and admin dashboard with React, TypeScript, and D3.js. Built high-volume REST APIs with Express.js and secured them using OAuth, Okta, and JWT. Optimized data fetching with GraphQL and boosted performance using caching, CDNs, and load balancing. Mentored full stack devs and encouraged a culture of continuous improvement.

Full Stack Engineer at TheoremOne

Built a custom e-commerce platform with React and Node, delivering pixel-perfect UI from Figma designs. Developed a SaaS booking engine for hospitality with Google Maps integration. Launched an on-demand mental health app with AWS and Stripe for payments. Created responsive 3D graphics using Three.js, driving strong user satisfaction. Cut load time by 91% (4s → 0.35s) using lazy loading and memoization.

Software Engineer at Ahold Delhaize

Delivered full stack features for a nationwide grocery order fulfillment platform, collaborating with UI/UX, QA, and product teams. Built a Python microservice for real-time inventory syncing between stores and warehouses, supporting accurate availability across thousands of SKUs. Recognized as the most productive engineer in the first 6 months after delivering a reusable fulfillment scheduler module adopted across services. Automated repetitive workflows with custom GitHub/Jira tooling and streamlined CI pipelines, improving release flow for a 30+ engineer team.

Full Stack Web Developer at Astriata

Built responsive pages with Next.js, TypeScript, and Tailwind, tightly integrated with a Keystone CMS backend for dynamic content management. Created reusable components and design system in Storybook. Improved UI performance and usability across screen sizes.

Full Stack Engineer at Energy Raven

Built a user-friendly dashboard for an AI-powered energy platform using React, TypeScript, and D3.js, ensuring significant engagement boost. Designed onboarding for inspectors and shipped greenfield tools using Python and OpenAI to parse emails, web pages, and PDFs. Integrated third-party APIs with strong test coverage to ensure reliability. Automated CI/CD with GitHub Actions and Terraform, generating energy reports from inspection results. Collaborated daily with ops and resolved production issues through on-call support.

Senior Software Development Engineer at Thoughtworks

Migrated a SaaS e-learning platform to event-driven microservices on AWS using Lambda, EventBridge, SQS/SNS, and DynamoDB. Improved user experience and admin dashboard with React, TypeScript, and D3.js. Built high-volume REST APIs with Express.js and secured them using OAuth, Okta, and JWT. Optimized data fetching with GraphQL and boosted performance using caching, CDNs, and load balancing. Mentored full stack devs and encouraged a culture of continuous improvement.