Full Stack Software Engineer – Nopex Platform

# Full Stack Software Engineer – Nopex Platform Hybrid (Karlsruhe)
Full-time €5,000 – €5,800 gross/month

Posted June 2, 2026

Apply now## About the role Nopex is an AI-agent-native platform for software delivery. We turn requirements into running production systems by orchestrating swarms of specialised AI agents that plan, code, test, review, deploy, and operate software — with humans in the loop where it matters.

As a Full Stack Software Engineer, you'll work across our five products:
Console (requirements and document SaaS), Swarm (multi-agent orchestration daemon), Hive (control plane), Stack (AI-native CI/CD), and Billing Gateway. You'll build features whose users are both humans and AI agents — and you'll work side by side with our own agents while doing it.## Your responsibilities
* Build end-to-end features:
Next.js 16 / React (shadcn/ui, Nopex Design System)  Fastify / NestJS APIs  PostgreSQL (Drizzle)  Redis/BullMQ
* Design product surfaces that both humans and AI agents consume — REST APIs with Zod, MCP tools, SSE/Web Socket streams
* Extend the Swarm: write new persona plugins, tools, workspace drivers, or transport adapters
* Touch the platform plumbing: pipelines in Stack, deployment drivers in Hive, webhook flows in Billing Gateway
* Own production:
Sentry instrumentation, Playwright/Vitest coverage, k8s manifests, on-call when things wobble
* Pair with our own AI agents — reviewing PRs from Swarm as often as you write them yourself## What you bring
* 4+ years building production Type Script across frontend and backend
* Solid Next.js / React and at least one Node backend framework (Fastify or Nest)
* Comfort with PostgreSQL, an ORM (Drizzle/Prisma), and Redis-based queues
* Working knowledge of Docker and Kubernetes — no SRE bar, but `kubectl describe` shouldn't scare you
* Opinions about API design, type safety, and where validation belongs
* A pragmatic stance on AI tooling — neither hype-driven nor allergic## Nice to have
* LLM/agent experience (Anthropic, OpenAI, MCP, prompt caching, tool-use protocols)
* Monorepo tooling (pnpm work spaces, Turbo)
* Drizzle migrations, Zod-first API contracts, OpenAPI 3.1
* Observability deep-dives (Sentry, OTel, trace UIs)## What we offer
* A platform where your code is amplified by an army of agents
* Small senior team — few meetings, lots of write-access, decisions in days
* Modern stack with no legacy weight: TS strict, Drizzle, Fastify, Next 16, K8s-native
* Karlsruhe office with home-office on selected days
* 30 days vacation, top equipment
* Conferences & events — we want you connected### Interested?

Send us your CV and a short note. We'll get back to you within 5 business days.
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