ML AI Engineer

Relocation | Greece

Strikerz Inc.

We are looking for a ML Engineer to join our AI Assist team and help us bring our game to new platforms.

What you will do:

• Build and train machine learning models that replicate football players’ behavior in a simulated or game-like environment;
• Apply Imitation Learning, Reinforcement Learning, Decision Transformers, and their hybrids to model realistic and dynamic agent behavior;
• Design and maintain data pipelines for training, validation, testing, and inference of ML models;
• Contribute to the architecture of an AI system that will evolve from MVP stage to full-scale deployment;
• Run behavior simulations to test models, evaluate realism and tactical consistency, and optimize learning approaches;
• Collaborate with game designers and engineers to bring AI-driven behavior into real-time environments (e.g., via API or engine integration).

Skills and requirements:

• Solid experience with PyTorch or TensorFlow, especially in sequence modeling or reinforcement/imitation learning use cases;
• Hands-on expertise in one or more RL algorithms (e.g., PPO, SAC, DQN) and at least one IL method (e.g., Behavioral Cloning, Inverse Reinforcement Learning);
• Good grasp of sequence modeling techniques, including RNN/LSTM and Transformers, particularly Decision Transformers;
• Experience in training from offline datasets - such as time-series or trajectory logs (e.g., player position tracking);
• Familiarity with modern ML toolchains: config management (e.g., Hydra), experiment tracking (Weights & Biases), and data versioning (DVC);
• Ability to build inference-ready pipelines (e.g., using ONNX, TorchScript, or REST API) and interface them with external systems.

Nice-to-Have:

• Prior experience integrating ML models into game engines (Unreal / Unity etc);
• General knowledge of football (ideally - tactical roles, and/or player behavior modeling);
• Exposure to offline RL, GFlowNets, or World Models;
• Contributions to open-source projects or participation in AI-related competitions (e.g., NeurIPS, Kaggle, AIcrowd);
• Strong debugging, visualization, or model interpretability skills.

Why choose us?

• The opportunity to shape AI architecture in a project that blends gaming, simulation, and machine learning;
• Full ownership of core technical direction in AI behavior modeling and training;
• Collaboration with a small, focused team working on a next-gen product from early-stage design.

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We offer:

• Competitive salary;
• Medical insurance, sick leaves and social benefits;
• Relocation package;
• Sports compensation;
• Online English classes;
• Referral bonuses;
• Co-working compensation;
• Corporate events

Please send your CV using the form below to apply for this opportunity.

More information about the vacancy: ML AI Engineer at Strikerz Inc.