Senior Machine Learning Engineer

United States Digital Space LLC; Warsaw (IN); On-site; USD 90,000 - 150,000; Full time

Benefits offered by this job

26 days paid holiday + holidays

20 days remote work

Regular company events

Private Medical Cover

Daily Free Lunch

Multisport Plus Card

Employee Assistance Program

Family Forming Support

Continuous Professional Development

English & Polish Classes

Job summary

Tripledot Studios is one of the world's leading independent mobile games companies, with a global team and award-winning portfolio. The AI group drives personalization, experiments, and production ML across main titles to improve retention, revenue, and player experience.

You will work with ML engineers, data engineers, analysts, and product owners in Warsaw to ship impactful features. The role emphasizes prototyping, production deployment, ML lifecycle, and close collaboration with

Qualifications

• Bachelor's degree or higher in a quantitative field (CS, maths, stats) or equivalent experience.
• Strong understanding of ML techniques from classification to reinforcement learning and generative methods.
• Experience applying ML algorithms to real-world problems.
• Experience with CI/CD, version control, containers (Docker & Kubernetes) and deploying ML models to production.
• Proficiency in SQL and Python and visualization tools (matplotlib) and related platforms (git, MLFlow, Kubernetes, Kubeflow, Trino, AirFlow).
• Strong statistical concepts (hypothesis testing, sampling, distributions).
• Excellent communication and collaboration to bridge technical and non-technical teams.
• Experience with generative AI copilots/agents in daily development work.
• Passion for mobile gaming and creating engaging player experiences.

Responsibilities

• Implement cutting-edge ML algorithms for personalization in gaming and test for effectiveness.
• Design experiments and prototypes to test viability and efficiency of new AI models.
• Translate research findings into production-ready code and prototypes in the codebase.
• Convert prototypes into production-level code for ML lifecycle deployment.
• Design, develop, and evaluate A/B tests to measure personalization impact.
• Continuously monitor player data to identify opportunities for personalization and improve algorithms.
• Document work clearly to foster knowledge sharing within the team.

Skills

Bachelor's degree

ML techniques

ML algorithms

CI/CD

Docker

Kubernetes

SQL

Python

Matplotlib

Git

MLFlow

Kubeflow

Trino

AirFlow

Statistics

Communication

Generative AI copilots

Education

Bachelor's degree in CS/Math/Stats or equivalent

Tools

CI/CD tooling

Docker

Kubernetes

Job description

Who are we?

Tripledot Studios is one of the largest independent mobile games companies in the world.

We are a multi-award-winning organisation, with a global 2,500+ strong team across 12 studios.

Our expanded portfolio includes some of the biggest titles in mobile gaming, collectively reaching top chart positions around the world and engaging over 25 million daily active users.

Tripledot’s guiding principle is that when people love what they do, what they do will be loved by others.

We’re building a company we’re proud of. One filled with driven, incredibly smart and detail-orientated people, who LOVE making games.

Our ambition is to be the most successful games company in the world, and we’re just getting started.

The role is working within our AI group

The group AI team is a central function that works both with other central groups like marketing and game solutions and the game studios which are part of Tripledot. Within the group AI team, you’ll be working with other AI/ ML Eng, Data engineers, analysts and product owners.

Role Overview

Within the various studios and other central teams, you will interact with data, engineering, and product teams. The role will be directly contributing to main games KPIs such as retention, revenue, player experience, as well as to company efficiency and time to market in developing games and features. Progression opportunities will be within the AI group or to studios in the group.

Key Responsibilities

• Implement cutting-edge ML algorithms for personalization in gaming, staying abreast of the latest advancements in the field, and testing to see what works best for our games and data.
• Designing experiments and prototypes to test the viability and efficiency of new AI models.
• Translate research findings into real-world applications by creating algorithm prototypes in our codebase.
• Convert prototypes into production level code that can be easily managed and deployed through the ML Lifecycle.
• Design, develop, and evaluate A/B tests to measure the effectiveness of personalisation algorithms and optimise player experience.
• Continuously monitor and analyse player data to identify new opportunities for personalisation and improve existing algorithms.
• Document your work clearly and concisely, fostering knowledge sharing within the team.

What we’re looking for

• A Bachelor's degree or higher in a quantitative field (e.g., computer science, mathematics, statistics), another quantitative applied field or equivalent experience.
• Strong understanding of industry standard ML techniques (from classification to reinforcement learning and generative methods)
• Experience in applying machine learning algorithms to solve real-world problems.
• Experience with software development concepts like CI/CD, Version Control, Containers (Docker & Kubernetes) and proven track record of deploying ML models to production and established MLOps concepts.
• A good command of analytical programming and visualisation languages and libraries (SQL, python, matplotlib, etc.) as well as some of the supporting tools and platforms (e.g. git, MLFlow, Kubernetes, Kubeflow, Trino, AirFlow).
• A strong understanding of statistical concepts (hypothesis testing, sampling, probability distributions).
• Excellent communication and collaboration skills to effectively bridge the gap between technical and non-technical teams.
• Experience with using generative AI copilots or agents in daily development work.
• A passion for mobile gaming and a strong desire to create engaging player experiences and drive business results.

Bonus points if you also have:

• Experience with more complex ML techniques (e.g. Reinforcement Learning).
• Experience with A/B testing methodologies in an online gaming context.
• Experience working in the games industry.

Working at Tripledot

• 26 days paid holiday in addition to bank holidays to relax and refresh throughout the year
• 20 days remote working: Work from anywhere in the world, or use the time to cover mandatory office days to WFH, 20 days of the year.
• Regular company events and rewards: Join in regular events and rewards that celebrate cultural events, our achievements and our team spirit.
• Private Medical Cover with Luxmed: Have peace of mind with private medical cover, ensuring your and your family's health is in good hands.
• Daily Free Lunch: When working in the office order free food from Pyszne.pl
• Multisport Plus Card: Enjoy access to various sports facilities across Warsaw with the Multisport Plus Card.
• Employee Assistance Program: Anytime you need it, tap into confidential, caring support with our Employee Assistance Program, always here to lend an ear and a helping hand.
• Family Forming Support: Receive vital support on your family forming/ fertility journey with our support program [subject to policy]
• Continuous Professional Development: Propel your career with continuous opportunities for professional development.
• English & Polish Classes: Improve your language skills with access to English and Polish classes.

This organization operates in compliance with the Whistleblower Act, for more information or to report violations please email -----