Web Design Engineer (Games UI)

Senior Web Design Engineer (Games UI)

Crytek

At Crytek we're building a scalable UI platform powered by a Design System implemented in Coherent Gameface (HTML, CSS, JavaScript). Instead of building UI screen-by-screen, we are creating reusable components and architecture that power Hunt: Showdown and future Crytek titles. We’re looking for a Senior Web Design Engineer to help build this system - translating Figma components into production-ready UI and shaping how UI is developed across Crytek. This is an opportunity to build the UI foundation for multiple games, not just individual screens. We welcome candidates from a variety of backgrounds and experiences who are excited about building thoughtful, scalable UI. This position is based in Frankfurt, Germany. An online portfolio with updated work samples is necessary. Your portfolio should demonstrate the following: The scope of your contribution on each project Visual polish and attention to detail A strong sense of UX, both in your work and how your portfolio itself is organized Clean, well-structured code Thoughtful use of modular UI components

Senior QA Engineer

Holocene

YOUR MISSION We're a fast-moving, lean EU team looking for a high-agency QA engineer based in Kosovo, with zero middle management. You'll work alongside our founder and our Kosovo engineering team, report directly to the Head of Engineering, and own quality end-to-end. We already have a Playwright/TypeScript E2E suite covering our core flows, but it needs a real owner. Your job is to own quality across the whole product: our Next.js web app, our backend APIs, and the AI document-extraction engine underneath. You'll broaden coverage across the app, make the suite trustworthy (fast, stable, and run on every change), and extend it into an AI-driven evaluation pipeline, so neither an everyday feature change nor a prompt or model change can silently break what we ship. Note: CVs filled with LLM slop will be immediately disqualified. We want to see your actual experience in your own words. WHAT YOU'LL DO * Own quality across the product: Full E2E and regression coverage of our Next.js frontend and backend APIs, from critical user journeys to the edge cases, so every release ships with confidence. * Make the suite trustworthy: Take ownership of our existing Playwright/TypeScript suite, drive down flakiness, and get it green and trusted as a CI gate the team relies on. * Harden the email → extraction → downstream pipeline: We have early coverage of our email-to-document flow. You'll turn it into the rock-solid regression backbone that protects extraction accuracy and downstream processing. * Build AI evaluation, not just pass/fail: Use Langfuse to build eval harnesses for extraction quality, golden datasets, scoring against ground truth, and drift detection that gates on quality, not just green checks. * Use AI to test faster: Lean on AI to generate cases and synthetic documents, triage failures, and review diffs, wherever it makes the suite broader and faster than hand-written tests alone. * Make testability a first-class concern: Partner with engineers so features ship testable by design, with clear, actionable failure reporting. YOUR PROFILE * Full-stack app testing: You test real web apps end to end, UI flows, API contracts, and data integrity, and you know what makes a suite flaky and how to fix it. Strong with Playwright and comfortable in TypeScript and/or Python. * 3+ years in QA / test engineering: We hire experienced QA only. What matters is depth of ownership: you've built and run automation strategy and frameworks yourself, not just executed someone else's test plans. A sharp engineer who's shipped real automation beats a coaster with twice the tenure. * High Agency: You don't wait for perfectly scoped tickets. You unblock yourself, make pragmatic decisions, and take extreme ownership of quality. * AI-first instincts: You actively use AI in your testing workflow, and you're keen to take on the harder problem of testing non-deterministic AI output, or can show real aptitude for it. NICE TO HAVE * Experience testing non-deterministic systems: evaluating LLM/ML outputs, building eval sets, reasoning about quality metrics over pass/fail. * Data/ML pipeline testing or MLOps background. * Document processing, OCR, or data-extraction domain experience. * Familiarity with Prisma, async/queue-based systems, or complex event patterns. WHY US? * High Ownership & Influence: You'll define how Holocene does QA. Your test strategy directly protects the product and the roadmap. * Elite, Lean Team: Work with highly technical peers in an environment where experimentation is expected and red tape is nonexistent. * Fast Decisions: We respect your time. Just 2 interviews, with a final decision within 48 hours.

Senior React/React Native Engineer

Trading 212

OUR MISSION IS TO ENABLE EVERYONE TO BUILD WEALTH We reinvent how trading and investing work by creating exceptional products people love. Fostering a culture of excellence and high velocity is the key to our success. Today, we serve over 6 million clients, with more than €38 billion in assets under management, a testament to the scale and trust we’ve built in just a few years. Our frontend platform is built for performance, scalability, and real-time interaction, using React/React Native, Typescript, and modern build tools. WHAT YOU’LL DO * Impact millions of users with every change you ship to production, your work directly affects real trading activity at scale. * Drive technical excellence across our frontend platform, building a unified monorepo that powers iOS, Android, and Web, with a strong focus on efficiency and code reuse. * Partner with design and engineering to turn complex backend logic into pixel-perfect interfaces. Champion UI consistency and intuitive UX to deliver a world-class experience. * Take ownership of the codebase and its long-term health, maintainability, scalability, and disciplined engineering are non-negotiable in a product built to last.   WHAT YOU NEED TO HAVE * TypeScript experience * React Native or React or Next.js experience * Experience with at least one global state management solution - TanStack Query (FKA React Query), Zustand, Redux/RTK, Jotai, XState, Context API, MobX or similar * Experience with RESTful-based APIs NICE TO HAVE * Experience with native mobile development (Swift/Kotlin) * Experience with CI/CD * Experience with Reanimated/RNGH * Experience with WebSockets OUR TECH STACK * React Native * TypeScript * State management - TanStack Query (FKA React Query), zustand * Reanimated, RNGH * Vite * Monorepo setup using nx and pnpm * Other tools - Figma, Amplitude, Sentry * Other packages we heavily use - zod, immer   WHAT WE OFFER * Challenges that will help you grow and realise your potential * Opportunity to make a big Impact - you will build innovative services used by millions of investors to build wealth * Work with smart, spirited, helpful, high-performing colleagues with a common goal * An environment where nothing is set in stone * Appreciation for your talent and ideas * Generous remuneration package including annual bonuses * Excellent social benefits package, including private health insurance, sports card and 25 days of paid vacation per year * Delicious treats and a spacious game room Are you ready to accelerate your career with us? We'd love to hear from you! We process applicant data confidentially and in accordance with applicable data protection laws. We may use AI-powered tools to help review applications, but all hiring decisions are made by our human recruitment team. Where required by law, we rely on your consent to use these tools. You may withdraw this consent or exercise your data protection rights at any time by contacting us.