An Tran
Senior Software Engineer
Summary
Senior Software Engineer with expertise in React/Next.js, Typescript, Go, and observability platforms. Passionate about building user-facing applications with focus on web performance and product growth. Led SSR migration cutting load times ~30% for the SumUp's merchant dashboard, delivered a First-Time User Experience funnel driving €14M projected annual revenue, and re-architected dashboard UX enabling self-service and multi-team contributions.
Technical Skills
Frontend
TypeScript, React, Next.js, HTML5, CSS3, Tailwind, Accessibility
Backend
Go, Node.js, Express.js, PostgreSQL, MongoDB, REST APIs
Platform / Performance / Observability
Kubernetes, CI/CD, Jest, Playwright, Grafana, Honeycomb, Core Web Vitals
Professional Experience
Senior Software Engineer
SumUp, Berlin
2022 – Present
- Led Next.js Server-Side Rendering (SSR) migration of merchant dashboard (App Router/Server Components/Caching); cut LCP ~30%, TTFB −25% across thousands of daily active merchants.
- Sole web engineer for the First-Time User Experience funnel (React/Next.js + Go APIs); delivered €14M projected annualized revenue +4.5% TPV per new-merchant cohort within 1 year.
- Re-architected dashboard profile/settings/navigation/support to enable merchant self-service; resulted in a 9% reduction in support tickets; created contribution model for 10+ product teams.
Development Engineer
Midge Medical, Berlin
2018 – 2021
- Designed and built engineering prototypes that secured investments and contributed to scaling the company from 5 to 50 employees within 2 years.
- Led experiments, feasibility studies, and cross-functional collaborations to develop safe, effective, and innovative medical device solutions.
- Managed lab operations, equipment onboard and develop new engineers.
Memory Development Engineer
Synopsys, Vietnam
2014 – 2015
- Developed SRAM/TCAM memory systems focusing on power optimization and timing characterization.
Education
MSc, Smart Systems Integration
Heriot-Watt University, United Kingdom
2015 – 2017
BEng, Electronics & Communications
Da Nang University of Technology, Vietnam
2008 – 2013