Senior Full Stack Engineer

Senior Full Stack Engineer

Join to apply for the Senior Full Stack Engineer role at Caffeine
.

At Caffeine.ai
, we are building the world’s first platform that turns natural language into full-stack 인간 applications that are deployed to a sovereign cloud, the Internet Computer. Our mission is to make building software as simple as a conversation—transforming ideas into live, production systems in minutes.

A core part of Caffeine is the App Marketplace
: a place where applications created through conversation can be published, discovered, remixed, and extended

Lyrics by other users. We are building both the platform and initial high‑quality applications that populate it.

• Design and ship end‑to‑end features: design architectural decisions that span the data model, API, and UI using Type Script, Node.js, and React.
• Build the "AI‑Native" experience: collaborate with AI researchers to integrate LLM capabilities, manage complex state required to stream AI responses while maintaining a responsive, seamless UI.
• Own backend and frontend quality: optimize API latency, data access patterns, background workflows, React render performance, state complexity and bundle size.
• Operate with high autonomy: take features from vague problem statements to production, clarifying requirements, proposing solutions, implementing and validating.
• Drive engineering standards: champion code quality, add unit, integration and e2e tests, logging, tracing, and user analytics for observability.
• Partner on product decisions: work closely with product and design kukhala shape platform capabilities, challenge assumptions and iterate.

• 7+ years of experience building production web applications and distributed systems.
• True full‑stack: highly proficient in both backend (Node.js, SQL/No
  
  SQL, API design) and frontend (React, modern CSS, state management).
• Type Script native: leverage Type Script across the entire stack.
• Strong product sense: care deeply about UX and pragmatically build with performance in mind.
• Curious & adaptable: excited by the intersection of AI‑driven development and sovereign web technologies.
• High ownership: thrive in fast‑moving environments, taking ideas from concept to independent deployment.
Bonus Skills
• Experience with Postgre
  
  SQL and event‑driven architectures.
• Familiarity with marketplaces, app platforms, SSR, SPA trade‑offs and SEO.
• Knowledge of Dev Ops (Docker, Kubernetes, observability).
• Interest in Web3 or blockchain‑based systems.
Location & Work Arrangements

This is a hybrid role based in our Zurich office, with a requirement of 3+ days in the office per week.

Employment Details

Seniority level: Mid‑Senior level

Employment type: Full‑time