Founding Engineer, Merantix

• Strong experience with TypeScript (Next.js) and Python (FastAPI), including async systems
• Proven ability to ship production-grade software in a fast-moving environment
• Comfort designing and building backend systems: APIs, databases, queues, integrations
• Product mindset: you simplify, you prioritize, you build what matters
• Ownership + urgency: you see problems, you fix them, you communicate clearly
• Based in Berlin and up for regular in-person work with the founding team

Desirable

• You are Technical Hire #1 - the founding engineer who helps build the core product and platform from scratch
• Build the Xpreso platform end-to-end (product + infrastructure), shipping weekly
• Own core systems in our stack:
• TypeScript / Next.js (app, API routes, backend services where it makes sense)
• Python / FastAPI (async services, pipelines, ML/LLM-adjacent logic)
• Turn messy inputs (job needs + candidate intent) into structured signal
• Design ranking / scoring logic and iterate it fast with real outcomes
• Create feedback loops so the system gets smarter over time
• Schemas, data models, retrieval, embeddings, evaluation, analytics
• Clean interfaces between conversation capture → insight → match decisions
• Job data feeds, ATS/HR tooling, calendars, messaging, whatever removes friction
• Join customer calls, understand pain, translate it into product
• Keep the system pragmatic, reliable, and secure without over-engineering