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EPAM Systems

Mobile Game Development Principal Engineer

EPAM Systems
Australia · Full-time · Mid-Senior
We are seeking a Principal Engineer to lead the development of our groundbreaking dynamic difficulty system. In this role, you'll optimize the player experience by dynamically adjusting game difficulty in real-time, leveraging initial rule-based algorithms, and subsequently integrating advanced Machine Learning and Large Language Models. The impact of this work will extend across multiple mobile word puzzle games within our portfolio, significantly enhancing player engagement and retention.

Responsibilities

  • Design, develop, and implement the system, transitioning from rule-based logic to ML/LLM-driven solutions with robust unit testing
  • Build tools to generate and optimize game data for seamless integration into mobile titles
  • Collaborate with data engineers & scientists to refine data pipelines for dynamic difficulty tuning
  • Partner with game teams to integrate our system, ensuring a clean, well-documented API for game logic
  • Create technical specs for algorithm design, data flow, and API contracts
  • Drive Agile development-iterating on design, implementation, and testing
  • Analyze game performance to identify optimization opportunities
  • Communicate technical concepts clearly to both technical and non-technical stakeholders

Requirements

  • 7+ years in mobile game development, with deep expertise in game architecture & systems
  • Experience launching and operating at least one commercial mobile game
  • Expert in Unity (C#), including architecture, scripting, and best practices
  • Strong API design skills (scalable, documented, and maintainable)
  • Excellent written/verbal communication — able to simplify complex ideas
  • Experience writing technical design docs
  • Agile/iterative development mindset with a track record of delivery

Nice to have

  • Experience with Machine Learning concepts and applications
  • Familiality with Unity Sentis or on-device ML inference engines
  • Experience working with large datasets and data-driven systems
  • Knowledge of NLP/LLMs (Natural Language Processing or Large Language Models)

We offer

  • By choosing EPAM, you're getting a job at Great Place To Work-Certified™ in 2024, Glassdoor’s Top 100 Best Places to Work in 2023 & one of Most Loved Workplace, as recognized by Newsweek, 2021 - 2023.
  • Employee ideas are the main driver of our business. We have a very supportive environment where your voice matters.
  • You will be challenged while working side-by-side with the best talent globally. We work with top-notch technologies, constantly seeking new industry trends and best practices.
  • We offer a transparent career path and an individual roadmap to engineer your future & accelerate your journey.
  • At EPAM, you can find vast opportunities for self-development: online courses and libraries, mentoring programs, partial grants of certification, and experience exchange with colleagues around the world. You will learn, contribute, and grow with us.

How We Hire

  • Here, we summarize the typical journey to finding a job within EPAM.
  • Apply and tell us about yourself!
  • Go through some standard interviews:
  • - General interview with a recruiter
  • - Technical interview with our technology experts
  • - Manager interview or Offer interview with a hiring manager
  • Get ready to join the team!
  • Not sure if you meet all the requirements? No problem. Let's talk anyway and find out more!
  • It takes 1 min of application to start the journey with us. Apply now!

Life at EPAM

  • We are a leading global provider of digital platform engineering and development services that has rapidly grown in Australia since 2013.
  • We adopt a global growth strategy, thinking and acting like start-ups, working in multi-disciplinary teams, and delivering results. With a multinational talented team, we have been delivering innovative solutions for cloud migration, cyber security, digital transformation, etc.  
  • You will work in an open and friendly work environment where your professional skills and experience can stand out.

Key Skills

Ranked by relevance

machine learning unity natural language processing algorithm design cyber security cloud c
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Country Guide

Australia

Skilled migration pathways & strong salaries

Posted
Jul 22, 2025
Type
Full-time
Level
Mid-Senior
Location
Australia
Company
EPAM Systems

Industries

Software Development IT Services IT Consulting

Categories

Information Technology Engineering Business Development

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