Senior Machine Learning Engineer

Place of work: Zagreb Office

ABOUT SOFASCORE

Sofascore is a leading provider of live scores and advanced sports insights. Some tell stories with words, and we tell ours with numbers. 

We developed a mobile app and website that cover over 20,000 tournaments for 25 sports in 40+ languages. Our goal is to provide sports fans with superior insights about their favourite players, clubs, leagues, and competitions.

The info we provide, whether it's live results, stats, or data, is delivered in real time, so you never miss a beat. It's your seat at the world's biggest stadium. 🏟️

The Sofascore team counts more than 300 experts, primarily in our homecourt in Croatia but also worldwide. 🇭🇷 🌐

ABOUT THE ROLE

At Sofascore, we are passionate about redefining the sports experience for millions of users worldwide through cutting-edge technology. We are looking for an experienced Senior Machine Learning Engineer to join our AI Team. This is a key role for someone eager to apply advanced ML techniques in production at scale, contributing to projects that directly impact our users: recommender systems, personalized feeds, sentiment analysis, and semantic search.

As a Senior ML Engineer, you will be responsible not only for developing state-of-the-art models but also for ensuring their robustness, scalability, and seamless deployment into production environments. You will work closely with other engineers, data scientists, and product teams to deliver intelligent, reliable, and high-performing solutions.

Your responsibilities

• Design, build, and deploy production-ready ML systems with high reliability and scalability.
• Develop, evaluate, and optimize recommender systems, feed systems, and NLP-driven solutions (e.g., sentiment analysis, semantic search).
• Implement robust MLOps practices using Docker, Kubernetes, and cloud platforms.
• Collaborate on system design, data pipelines, and end-to-end lifecycle management of ML models.
• Write clean, maintainable, and high-quality code following engineering best practices.
• Mentor and support less experienced colleagues, setting standards for technical excellence within the team.
  

What we are looking for

• 5+ years of industry experience working on machine learning projects, with a proven track record of delivering models into production.
• Strong knowledge of recommender systems, NLP methods, and modern ML architectures (including transformers and LLMs).
• Proficiency in Python (or similar), with excellent coding and debugging skills.
• Hands-on experience with containerization, orchestration, and deployment technologies (Docker, Kubernetes).
• Strong understanding of MLOps, CI/CD pipelines, monitoring, and model lifecycle management.
• Ability to design scalable solutions, from prototype to production.
• Strong problem-solving mindset, curiosity, and passion for innovation.

What sets you apart

• Experience working on large-scale consumer-facing ML systems.
• Familiarity with cutting-edge LLM applications and their integration into production systems.
• Research background, evidenced by impactful contributions, publications, or applied innovations.
• Experience mentoring and providing technical leadership in a collaborative team environment.

What we offer

• The opportunity to work with a cutting-edge sports platform impacting millions worldwide
• Family benefits package
• Education - internal and through international conferences and workshops
• Top quality equipment and budget for Mobile phone
• Paid package of general physical examination once a year
• Sofascore Canteen (lunch options) 
• Sofascore Bar (coffee and drinks on us)
• Numerous other benefits that we would verbally communicate to you