Senior Backend Engineer – Agentic Systems

We're looking for a Senior Backend / Platform Engineer to join an AI-first digital consultancy that helps large enterprises deploy agentic AI solutions across Europe. You'll build the core backend platform and orchestration layer that lets the company's Forward Deployed Engineers ship secure, reliable and reusable AI workflows to customers. If you've taken LLM or agentic features into production and enjoy the hard parts (orchestration, tool calling, state, observability, integrations), this role is for you.

Details:
Location: Remote, within Europe (EU-based)
Employment: Full-time, B2B contract only
Seniority: Mid-Senior
Core stack: Python, TypeScript, distributed systems, APIs, queues, databases, OAuth, webhooks, LLMs, agentic AI, observability, data pipelines

What you'll do
Design and build the backend platform and orchestration layer for agentic AI solutions
Create scalable, asynchronous, queue-based systems in Python and/or TypeScript
Implement LLM and agent patterns: tool calling, orchestration, state management
Build enterprise integrations (OAuth, webhooks, REST APIs, SDKs) and data ingestion/normalisation pipelines
Set up observability and evaluation for AI workloads: latency, cost, trace capture
Enable Forward Deployed Engineers to reuse secure, reliable building blocks for customer projects

Must have
4–6 years in backend engineering, platform engineering or distributed systems
Strong hands-on Python and/or TypeScript
Practical production experience with LLM or agentic applications (tool calling, orchestration, state management)
Experience with enterprise integrations: OAuth, webhooks, REST APIs, SDKs, data pipelines
Degree in Computer Science, Software Engineering or a related field
Based in the EU, available on a B2B basis

Nice to have
Additional European languages beyond English
Deep experience with enterprise integrations at scale

Interview process
Prepared technical assessment with the engineering team (1 hour)
Follow-up discussion (1 hour)