Principal Machine Learning Engineer

This isn’t your regular job. Almedia is a place where those who want to push harder can accelerate their careers faster than anywhere else. We’re aiming to become Germany’s second bootstrapped unicorn. Almedia is already Europe’s #3 fastest-growing company in 2025 (FT1000). We are building the future of marketing by rewarding our community of over 70 million users for engaging with our advertisers’ products. We are offering a new way to acquire users for the biggest companies in the world.

You'll take ownership of the hardest ML problems across Almedia's products and growth. This is a hands‑on role for someone who identifies what matters most, sets the technical direction, and drives it end to end with minimal oversight.

Types of problems you'll be solving:

• Designing and owning the strategy for user reward schemes at scale, across behaviour signals and market dynamics
• Architecting real-time personalisation systems for reward values that operate at production scale
• Defining how we detect and diagnose underperforming campaigns, and building the systems that act on it

Your role:

• Own end-to-end delivery of high-impact ML systems: from problem framing through to production and iteration
• Set the technical bar for ML across the org, establishing best practices and raising the quality of decisions
• Define where ML creates the most business value and align the roadmap accordingly
• Apply advanced statistical and causal inference methods with rigour and production-readiness
• Partner with product and engineering leadership to shape how technical capability maps to strategic priorities

You have:

• A strong track record of taking ambiguous, high-impact problems from first principles to production independently
• Deep expertise in statistics, causal inference, and experimentation at scale
• Mastery of Python and SQL, with extensive hands‑on cloud and production systems experience
• A history of setting technical direction and raising the bar for engineering teams around you
• The communication range to influence both engineers and senior business stakeholders

Bonus points for:

• Passion for gaming and a strong intuition for player behaviour
• Experience in adtech, monetisation platforms, or the gambling industry
• Familiarity with gaming KPIs such as pLTV, retention, and ROAS

Why Almedia?

• Scale With Almedia: Have a real impact and grow alongside a startup that has been profitable from day one.
• High‑Growth Environment: We encourage all staff to take ownership of projects and consistently raise the bar.
• Do More, Get More: Generous bonus scheme to ensure great, proactive work is valued.

We believe in fostering talent, evaluating all skill levels during the hiring process, and providing a clear path for growth. Almedia is an equal opportunity employer. We embrace and celebrate diversity, and encourage individuals from all backgrounds to apply.