Senior Front-end Developer

We're looking for a Senior Front-End Developer to join the team building the web products behind Artec 3D's scanners and 3D-scanning software — our customer-facing storefront, our internal CRM, and our shared design system. This is a hands-on, autonomous role across a real-world mix of modern and legacy code: there is no front-end lead above you — you own technical decisions, and mentoring more junior teammates is part of the role. You'll ship greenfield features on a cutting-edge React 19 stack while incrementally retiring and modernizing the codebase it's replacing. What you'll work on
- My Artec — our customer storefront. A Ruby on Rails app (HAML/ERB templates, jQuery, vanilla JS) that we're progressively migrating to a React 19 SPA (TanStack Router/Query, Rspack, Vanilla Extract). You'll both build new feature slices in the greenfield React app and maintain the legacy frontend.
- Artec CRM — our internal customer-relationship platform: a mature React SPA (React 18, Redux Toolkit, Vite), currently migrating its routing to TanStack Router.
- Artec UI — our shared component library and design system (React 19, Vanilla Extract, Storybook, Chromatic visual regression), consumed by the products above.
- Occasionally, internal tooling (a Next.js portal). About Artec 3D Tasks:
- Build new features end-to-end on a modern React + TypeScript stack, and maintain/refactor legacy template-and-jQuery code where it still lives — including occasional edits to old Ruby (HAML/ERB) templates.
- Drive incremental migrations from legacy to greenfield — making them safe, reviewable, and shippable in small steps.
- Work autonomously and own front-end technical decisions
- Collaborate closely with backend, QA, project management, and design teams to plan, agree on API/permission contracts, and deliver features end-to-end.
- Contribute to and consume the shared design system; uphold accessibility and visual consistency.
- Take part in code reviews, write tests, and own the quality of what you ship.

We offer
:
- A great office, modern equipment
- Autonomy and creativity in the area of your responsibility
- Official salary, medical insurance
- Hot lunches in the office
- Flexible schedule
- A collection of board games Required skills and competence:
- Strong JavaScript/TypeScript fundamentals and solid HTML/CSS.
- Deep, production-level experience with React and its modern ecosystem (hooks, routing, server-state/data-fetching, forms).
- Hands-on experience with modern build tooling (Rspack / Vite / webpack).
- CSS-in-JS / CSS Modules styling
- Comfortable working in a large existing codebase: reading, refactoring, and safely changing code you didn't write — including older/legacy frontends, and not shying away from occasional fixes in legacy Ruby templates.
- Experience leading legacy-to-modern migrations in production.
- Ability to work autonomously with little supervision, and to mentor less experienced engineers.
- Experience writing automated tests and collaborating through code review.
- Able to work effectively in a distributed, asynchronous team and communicate clearly in English. Will be a plus:
- Experience with TanStack Router / TanStack Query (or React Query / RTK Query) and Redux Toolkit.
- Building or maintaining a design system / component library (Storybook, visual regression testing).
- i18n / localization experience.
- Some comfort with backend work alongside Ruby on Rails / PHP backends.