Staff AI/ML Engineer (all)

XO Life GmbH; München; On-site; EUR 120,000 - 180,000; Full time

Job summary

Personio is seeking a Staff AI/ML Engineer to take technical ownership of our AI/ML work end-to-end. You’ll lead projects from idea to implementation and help shape how we build and scale AI across the company.

You’ll bring hands-on experience building and leading projects end-to-end, with the ability to dive into technical decisions, edge cases, and trade-offs. This role impacts healthcare and enterprise workflows across a diverse, international team.

Qualifications

• Proven experience leading AI/ML projects end-to-end in a startup/product environment.
• Strong AI/ML and Data Science expertise including GenAI with a solid software engineering foundation.
• Understanding of data and ML infrastructure including data quality, feature pipelines, model serving and observability.
• Strong system design and architecture skills.
• Proactive, ownership-driven and results-oriented with a strong product mindset.
• Open to feedback and comfortable challenging technical decisions constructively.

Responsibilities

• Solve complex problems using the right AI/ML approach, from classic ML to GenAI and LLMs.
• Design AI/ML systems and architecture, including greenfield projects.
• Evaluate, monitor, and maintain AI/ML pipelines in production with reliability.
• Audit our AI setup and help define AI strategy and roadmap.
• Lead cross-functional AI initiatives and drive them from idea to implementation.
• Challenge existing technical decisions constructively while focusing on product and outcomes.

Skills

AI/ML Leadership

End-to-End Delivery

GenAI & LLMs

Data Infrastructure

Software Engineering

System Design

Tools

Python

Model Serving

ML Frameworks

Job description

Who we are looking for

We’re looking for a Staff AI/ML Engineer to take technical ownership of our AI/ML work end-to-end. You’ll work on complex AI/ML problems, lead projects from idea to implementation, and help shape how we build and scale AI across the company. You’ll bring hands-on experience building and leading projects end-to-end, along with the ability to go deep into technical decisions, edge cases, and trade-offs.

Your mission

• Solve complex problems using the right AI/ML approach, from classic ML to GenAI and LLMs, depending on the problem.

• Design AI/ML systems and architecture, including greenfield projects.

• Evaluate, monitor, and maintain AI/ML pipelines in production— not only build AI/ML solutions, but also assess their performance and keep them reliable over time.

• Audit our current AI setupand help define the AI strategy and roadmap.

• Lead cross-functional AI initiativesand drive them from idea to implementation.

• Challenge existing technical decisions constructivelyand stay focused on the product and the result.

Your background

• Proven experienceleading AI/ML projects end-to-end in a startup/product environment.

• StrongAI/ML and Data Science expertise, includingclassic ML and GenAI, with a solidsoftware engineering foundationand hands-on experience building AI/ML solutions.

• Understanding ofdata and ML infrastructure, includingdata quality, feature/data pipelines, model serving, observability, deployment, and lifecycle management.

• Strongsystem design and architectureskills.

• Proactive, ownership-driven, and results-oriented, with a strongproduct mindset.

• Open to feedback and comfortablechallenging technical decisions constructively.

Why us?

• Top Tech company in Digital Health: Work in a fast-growing, innovative environment where your impact is visible.
• True impact in healthcare: Contribute to a unique platform with the potential to improve health for millions.
• International team: Join colleagues from 14+ nationalities, united by a shared vision.

Hiring Process

• Recruiter Screening
• Leadership Interview
• Technical Deep Dive
• Decision