Engineering Department (all applications) - m/w/d

Build AI infrastructure that powers how Europe's largest companies work

Build something that matters.

Every day, thousands of knowledge workers across 5,000+ companies open Langdock to think, research, and automate with AI. You will build the systems that make those moments seamless.

What You Will Actually Do

• Ship features across our AI engine that orchestrates the newest model releases from all relevant AI labs through a unified abstraction layer, handling everything from prompt caching to automatic failover, and enabling capabilities at the forefront of AI including voice interfaces, real time transcription, text generation, image generation, and multimodal workflows.

• Build and extend our workflow automation system where agents can pause for human input, extract structured outputs from free form conversations, and chain together actions across hundreds of integrations.

• Work on cutting edge infrastructure including Model Context Protocol with OAuth dynamic client registration, agent to agent communication, and retrieval augmented generation pipelines with multiple vector stores.

• Solve problems like context window management while preserving tool call integrity, or token refresh callbacks that happen transparently mid execution.

• Design and maintain the infrastructure that runs Langdock across dozens of environments on Azure, AWS, GCP, and bare metal servers. You will build the systems that keep these deployments secure, up to date, and reliable across tenants.

• Own domains end to end. We ship daily.

What Makes This Role Different

You will work on a production grade AI platform with enterprise features like multi tenant observability, connection pooling for external services, sandboxed code execution, and queue based scaling.

This is not a single cloud deployment. Langdock runs across dozens of isolated environments on Azure, AWS, GCP, and bare metal servers. Enterprise customers expect strict data boundaries, regional deployments, and seamless upgrades. Designing systems that operate reliably across this landscape is a real distributed systems challenge.

The codebase demonstrates patterns that will become industry standard. We grew from €1M to €15M+ ARR in one year because the technology works. You will help scale it further.

You Might Be a Fit If

• You have built something technically exceptional and can explain what worked, what did not, and what you learned along the way.

• You do not just use AI tools daily. You actively nerd about your setup. You experiment with different models, prompts, workflows, and automations. You have strong opinions about what works and why.

• You care about the craft. Good abstractions, clear code, thoughtful architecture. You know when to ship fast and when to build foundations.

• You are comfortable across the stack. TypeScript, React, Node, databases, queues.

• You are a kind person who cares about the people around you.

The Environment

We work from our office in Berlin, Greifswalder Strasse 212. Everyone is here, because Everyone works together in person because the hardest problems get solved faster at a whiteboard than in a Slack thread. Conversations happen faster, problems get solved quicker, and we actually know each other.

Days start at 8:30. Lunch & dinner are together. We run, go to the gym, and take care of ourselves. Health is not separate from work here, it is part of how we work well.

The vibe is calm but intense. No one is yelling or panicking. But everyone is working hard on things that matter.

Compensation

We pay top of market rates. Transparent salary levels tied to scope, not negotiation. All roles include equity. Levels are about the work you own, not title or years of experience.

How To Apply

We move fast. Most processes complete within two weeks.

If this sounds like your kind of work, apply.