Full-Stack Creative Developer (React / )
Full-Stack Creative Developer (React / )
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Job Description
Hello were PHONT a startup from Frankfurt on a mission to make subtitles feel as rich as spoken dialogue. Our AI-driven platform captures tone emotion and tempo then paints those cues straight onto the screenso every viewer everywhere can sense the full story while watching subtitled content.
Were now looking for a full-stack engineer to own the UI layer and the glue that binds it to our audio-analysis engine. Youll spearhead code-migration from experimental prototypes to a robust production stack shaping the product architecture as decisively as the visuals themselves.
Tasks
- Lead the migration of our existing front-end prototypes into a production-grade 14 codebase.
- Design a type-safe API layer (tRPC / GraphQL or REST) that talks fluently to our Python audio-analysis backendoptimizing for low-latency real-time data streaming.
- Collaborate with design and machine-learning teams to prototype emotion-driven animations in the browser shipping quick experiments and folding lessons back into the core code.
- Establish CI/CD pipelines automated testing (Playwright Vitest) and infrastructure-as-code practices.
- Mentor junior contributors in coding standards that balance creative freedom with software development.
- Optionally: Implement responsive accessible and emotionally-aware subtitle components using React and motion libraries (Framer Motion or GSAP).
Requirements
- Hands-on experience shipping full stack React/ apps in a startup or similar settingcomfortable with ambiguity rapid iteration and wearing many hats.
- Demonstrated success migrating prototypes into coherent component libraries with an eye for progressive refactor over rewrites.
- Solid command of TypeScript modern state-management paradigms (Zustand React Query or Redux Toolkit) and CSS-in-JS or utility-first frameworks.
- Fluent in HTTP fundamentals WebSockets and crafting secure performant data contracts between front- and back-end.
- A portfolio that shows both coding skills and visual flairwe want to see side-projects generative art or anything that proves you care about pixels.
- Startup mindset: you default to action validate assumptions with lightweight experiments and know when good enough today beats perfect next month.
Nice-to-haves:
- Familiarity with audio/video pipelines Web Audio API or FFmpeg.
- Experience with cloud platforms (AWS Azure) for building scalable high-performance web apps
- Contributions to open-source design-systems or creative-coding libraries ( ).
- Experience with media encoding MediaRecorder and WebGL.
- 2 years of full stack engineering experience.
Benefits
- Ownership from day one with significant influence on architecture design language and product roadmap.
- A culture that prizes both build / design quality and rapid MVP testing.
- Flexible hours and remote-friendly workflow with an office space in Frankfurt.
- Next to a base salary the option for virtual shares to participate directly of success.
- (Time-)Budget for conferences hardware and experimental side-projects in the realm of humancomputer expression and creativeness.
Our goal at PHONT is To Bring Subtitles to Life. If you thrill at the idea of turning audio sentiment into living breathing UI - we cant wait to see what youll build. Write
Send us your form-less application with projects that you built in the past your GitHub handle and optionally a breakdown of the boldest migration creative-coding or full stack application youve pulled off. Lets create the next generation of subtitles together!
Employment Type
Full Time
