AI role · Open offer

ML Engineer — fraud detection

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N26

Full-time
Senior
Risk ML
Hybrid
Voltairestraße 8, 10179 Berlin, Germany · Hybrid
EUR 80k–105k/year + equity

This listing is optimized for AI-native talent: clear skills and tools so candidates know if they fit before they apply—and so you spend less time screening mismatches.

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At a glance

How you'll work, where, and key listing dates.

Employment: Full-time
Workplace: Hybrid
Location: Voltairestraße 8, 10179 Berlin, Germany · Hybrid
Compensation: EUR 80k–105k/year + equity
Experience level: Senior
Team: Risk ML
Benefits & perks

About this role

What the team is looking for and how this position fits.

N26 is hiring a Senior ML Engineer — fraud detection on the Risk ML team (Hybrid · Berlin, Germany). This is a hands-on role in LLM & generative AI—not a generic “AI enthusiast” post.

You will own LLM features, retrieval, agents, and evaluation end to end: problem framing, offline evaluation, safe rollout, and iteration from production signals. Success is measured with clear metrics (quality, latency, cost, or business KPIs)—not slide decks alone.

N26 is a leading European digital bank with ML for fraud, AML, and customer trust.

Improve real-time risk models on streaming data from Berlin engineering hubs.

What you will do

Ship production fraud and risk ML with offline evals, monitoring, and safe rollout.
Work with product and domain experts on requirements and trade-offs.
Improve data pipelines, labeling, and metrics tied to business KPIs.
Document runbooks for on-call and customer-facing teams.

What we look for

Strong Python and modern ML/LLM stack with shipped features.
SQL, experimentation, and clear communication to stakeholders.
Eligible to work in the listed country; professional English required.

Skills we're hiring for

What each capability means for this role—not a keyword checklist.

Python
Production Python for data pipelines, model code, APIs, and automated tests—not notebook-only workflows.
PyTorch
Training and inference with PyTorch: reproducible experiments, checkpointing, and deployment-minded exports.
SQL

Tools & stack

Platforms and products mentioned for this role (APIs, IDEs, vector DBs, CRMs, design tools, etc.).

KafkaTool
Streaming features or scores with ordering, idempotency, and monitoring for real-time systems.

You're a strong fit if…

Tailored to this listing—use it as a self-check before you apply.

You can show evidence in your application: Real-time fraud or AML model with class imbalance story.
Several of these show up in recent shipped work—not only on your CV: Python, PyTorch, SQL, and Kafka.
You have owned LLM features, retrieval, agents, and evaluation in production: debugging live issues, running postmortems, and iterating from real user or business signals.
You are comfortable with the hybrid rhythm (Hybrid · Berlin, Germany)—onsite collaboration when it matters, deep work when remote.
You explain trade-offs (quality, cost, latency, safety) in plain language—with numbers or examples, not buzzwords.
You read the full listing (comp: EUR 80k–105k/year + equity, benefits in At a glance) and your expectations align.

Apply

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What the employer asked for

Real-time fraud or AML model with class imbalance story.

Register, add a headline and bio, then you can attach a CV link or PDF on My account before you apply. That keeps applications tied to your profile and makes it easier for employers to review your background.

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