senior software engineer (ai & machine learning)

We're looking for a Senior Software Engineer (AI & Machine Learning) to help take advanced AI prototypes into production — across use cases like agentic systems, NLP, and real-time inference. You'll build the infrastructure and APIs that bring cutting-edge research into real-world, reliable, scalable systems.

This role spans system architecture, performance optimization, and ML-enabling infrastructure — deployed in cloud or on-premises environments

The key responsibilities of this role will include:

• Build and scale AI/ML systems from prototype to production
• Design, implement, and integrate APIs for training, inference, and data flows
• Develop secure, high-performance execution environments and containers
• Create and maintain robust, scalable data pipelines
• Collaborate with researchers and infra teams to meet technical and research needs
• Take full ownership of projects, from architecture to delivery
• Mentor junior engineers and drive engineering best practices

To be successful at this role you need the following (hard and soft skills):

• 5+ years in software engineering (backend, systems, or infra)
• Proficient in Python and async/concurrent programming
• Strong experience designing and integrating production-grade APIs
• Hands-on with Docker and containerized environments
• Experience with ML frameworks (e.g., PyTorch, TensorFlow)
• Strong performance optimization and systems programming background
• Solid understanding of inference systems, model deployment, and data processing
• Clear communicator, able to work cross-functionally with ML and infra teams

Desired Certifications:

• Exposure to LLMs, NLP, or agent-based AI architectures
• Experience with Azure or other cloud platforms
• Familiarity with Kubernetes and infrastructure automation tools
• Understanding of SLO/SLA practices, observability, and distributed systems
• Experience with GPU acceleration or other ML hardware

What’s in it for You?

At Grant Thornton Greece, we believe that great work deserves great rewards! Here’s what you can look forward to:

• 🌈 Diverse and inclusive workplace
• 🏋️‍♂️ Friendly, Dynamic Working environment
• 💰 Competitive Salary & Bonus
• 🩺 Insurance Program for all GT members
• 👩‍🏫 Fully funded Training & Professional Qualifications
• 🏖 Extra Days-off: August Freedays, Volunteering Days, Early leave days
• 🏃🏽‍♂️ Corporate Sports Teams (e.g., Running, Basketball, Volleyball)
• 🎁 Exclusive Discounts: Special offers and discounts for employees
• 🚗 Company Car (depending on job level)