Praxis
Role description
Stockholm / 2026
Open role

Member of Technical Staff

MTS is a generalist who owns one of our hardest problems end to end from day one. No middle managers, no tickets handed down. You take the track that fits you: data and ingestion, AI/ML, or full-stack. Small senior team, on-site in central Stockholm, high pace.

Data and ingestion, AI/ML, or full-stack  ·  Central Stockholm, on-site  ·  Full-time  ·  Start now
What you would build

We are making medical truth accessible for every doctor in Europe. That is an engineering problem before it is a mission, and it is the one you would own:

Make the world’s medical knowledge answer in seconds. Every guideline and reference ingested at full fidelity, structured, ranked by authority, kept current, so a doctor mid-consultation has the whole of NICE, CKS and BNF answering in plain English.

Turn retrieval into a safety system, not a search box. Here the right passage is a correct dose and the wrong one is harm. You build the grounding that earns a clinician’s trust on the very question they already know the answer to.

Prove it safe on every release. Clinician-authored rubrics, continuous evaluation, drift detection, and safety gates that fail closed, held to a bar above general frontier models.

Scale it across a continent. The UK this quarter, then country by country, each on its own authoritative sources. You help build the platform that carries medical truth across Europe.

You

Strong software generalist. Really good with backend, capable of doing frontend, and you understand how RAG and agentic systems are designed and built. You ship fast and own a problem without supervision. You want to be in the office with the team, not tolerate it.

Stack

Async Python · MongoDB · Kubernetes · AWS · LangGraph · Prefect

EU-hosted and built as a regulated medical device: UK MDR, GDPR, EU AI Act.

About Praxis

Praxis is Sovereign AI for European doctors — a regulated clinical knowledge platform that answers doctors’ questions with sources they already trust (in the UK: NICE, CKS, BNF), fully traceable from answer to source.

We launch in the UK this quarter and are building the category leader for clinical AI in Europe. Backed by Creandum and Balderton.

Interview process
01

Intro conversation. With our CEO.

[30 minutes, video]
02

Second conversation. With our CTO.

[30 minutes, video]
03

Working session and team conversations. On-site in Stockholm, on a Saturday or Sunday — a working session, then conversations with the wider team and founders.

[one afternoon]
04

Reference check.

05

Offer.

Location

On-site in central Stockholm, with the team.

Compensation

High comp, high expectations.

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