Machine Learning Engineer

Workplays; Kraków; Hybrid; PLN 120,000 - 210,000; Full time

Benefits offered by this job

Mentorship program

Top-notch equipment provided

Central Kraków office in iconic train-

Job summary

Reality Games Polska Sp. z o.o. is seeking a Machine Learning Developer to join our Kraków office.

You will design, build, and optimize ML models to improve game features and player experience, while developing scalable data pipelines and collaborating with cross-functional teams. Ideal candidates have 2+ years of ML experience, strong Python skills, hands-on work with TensorFlow/PyTorch/Scikit-learn, and familiarity with Spark or Hadoop in a cloud environment.

Qualifications

• At least 2 years of experience designing and building machine learning systems.
• Strong programming skills in Python or a similar language.
• At least 1 year of experience with ML frameworks such as TensorFlow, PyTorch, or Scikit-learn.
• Experience with Big Data technologies such as Apache Spark or Hadoop.
• Experience with cloud-based ML services, such as Amazon SageMaker or Google Cloud AI Platform.
• Very good command of English.

Responsibilities

• Design, develop, and optimize machine learning models to enhance game features and player experience.
• Implement and maintain data pipelines for collecting, processing, and analyzing large-scale game data.
• Collaborate with data scientists, game designers, and engineers to integrate ML solutions into the game.
• Improve the performance and scalability of ML systems using cloud-based services.
• Monitor, test, and fine-tune machine learning models to ensure accuracy and efficiency.
• Research and apply the latest advancements in machine learning and artificial intelligence.
• Work with Big Data technologies to process and analyze complex datasets.
• Ensure the security and compliance of data used in machine learning applications.

Skills

Python

TensorFlow

PyTorch

Scikit-learn

Apache Spark

Hadoop

AWS SageMaker

Google Cloud AI Platform

English

Job description

This role will report to the Head of Analytics. This is a full-time, in-office position based in the iconic railway station building in Kraków.

If you thrive on solving complex challenges, love working with cutting-edge technology, and want to be part of a team shaping the future of gaming, this opportunity is for you.

Position:

We are looking for a Machine Learning Developer to join our team!

Key Responsibilities:

• Design, develop, and optimize machine learning models to enhance game features and player experience.
• Implement and maintain data pipelines for collecting, processing, and analyzing large-scale game data.
• Collaborate with data scientists, game designers, and engineers to integrate ML solutions into the game.
• Improve the performance and scalability of ML systems using cloud-based services.
• Monitor, test, and fine-tune machine learning models to ensure accuracy and efficiency.
• Research and apply the latest advancements in machine learning and artificial intelligence.
• Work with Big Data technologies to process and analyze complex datasets.
• Ensure the security and compliance of data used in machine learning applications.

Job requirements:

• At least 2 years of experience in designing and building machine learning systems.
• Strong programming skills in Python or a similar language.
• At least 1 year of experience with machine learning frameworks such as TensorFlow, PyTorch, or Scikit-learn.
• Experience with Big Data technologies such as Apache Spark or Hadoop.
• Experience with cloud-based machine learning services, such as Amazon SageMaker or Google Cloud AI Platform.
• Very good command of English.

Why Join Us / Benefits:

• Leader's support – mentorship, feedback, and career growth guidance.
• Knowledge sharing and investment in employee development.
• Fast-paced career with clear growth opportunities and performance reviews.
• Top-notch equipment provided.
• Beautiful, spacious office in the city center (iconic railway station building in Kraków).
• Flexible hours.
• Open kitchen with coffee, juices, fruits, stocked fridge.
• Team gatherings (pizza, games, company events).

Data processing / Legal:

I consent to process my personal data by Reality Games Polska Sp. z o.o. with headquarters in Kraków, Plac Jana Nowaka-Jeziorańskiego 3, 31-154 Kraków for the purpose and scope necessary in recruitment. The posting references the company's privacy policy for recruitment.