
Sergei Müller
Senior full-stack engineer • TypeScript/JavaScript • Architecture & performance • UK
About
I'm a senior full-stack engineer with 20+ years of experience building data-rich web apps and leading front-end/platform initiatives. I love clean architecture, pragmatic testing, and wringing performance out of complex UIs.
My toolbox: TypeScript, React/Vue, Node/Express, GraphQL/REST, Jest/Cypress, and Mapbox/Leaflet.
Outside of work I tinker with ethical-tech ideas, play guitar, and chase sunny places to work remotely.
Work
Shipping & maritime data platform • 2023 — present
Lead front-end work on voyage & freight calculators, emissions costs, dynamic fuel-consumption tables, and multi-leg route planning. Improved management and performance across large codebases.
Java, PHP and Full-stack roles • 2000s — 2020s
Delivered production systems across web and data domains, mentored engineers, and shipped features end-to-end from API design to pixel-perfect UI.
Contact
Not currently open to new roles, but always open to new connections.