Senior frontend engineer.
Angular & TypeScript, 20+ years.
B2B contracts: rescue work on stuck features, frontend performance, and data visualization — both 2D and 3D. Remote from Poland (CET), delivered across finance, pharma, and healthcare in the USA, Canada, Switzerland, Germany, Denmark, and Ireland — including validated systems.
TRACK RECORD
Goldman Sachsbanking · PL
Roche ×4pharma · CH·PL
BMObanking · CA
Avaloqbanking · CH
HaiiloB2B SaaS · DE
Let's Get Checkedhealth · IE
DataXuadtech · US
Rescue
The feature that's been stuck for months, the performance nobody can crack, the migration everyone avoids. I've untangled problems like these many times — fresh eyes, inventive solutions, no attachment to how it got this way.
Reinforcement
Embedded senior in your team, 3–12+ months. Beyond the code: strong UX judgment, plus working knowledge of backend, dev-ops, and the connective roles — PM / BA / SM.
Rendering specialty
Canvas 2D/3D, WebGL, WebGPU & Three.js. Web Workers, data-viz charts, performance profiling, Core Web Vitals.
Live demos
proof — not adjectives
$ git log --oneline --author="Paweł"
a1c4f2e Cross-framework pub-sub bus: Angular, Backbone, Ember + native JS on one page // DataXu
b2d80a1 Refactored critical systems, zero production disruption // Roche
c3e19bf Configurable questionnaire system: branching + decision trees // BMO
d4f7c02 Headless widget library in 2013, before the pattern had a name // Self
e5a9d13 HTML port of the Civ VI game map, high-performance rendering in Angular // Self
f6b2e40 Shared library adopted team-wide, replaced duplicate logic // Avaloq
→ nicknamed "FedEx" — features delivered on time, every time.
STACK
- TypeScript
- Angular
- RxJS
- NgRx
- Signals
- NGXS
- Node.js
- Vue
- Vitest
- Jest
- Playwright
- Storybook
- Canvas 2D
- Canvas 3D
- WebGL 2
- WebGPU
- Three.js
- Web Workers
- WebSockets
- Profiling
- Core Web Vitals
- API design
- Nx
- Docker
- Claude Code