Senior AI Engineer

We are looking for a hands-on AI Engineer to design, build, and maintain conversational AI agents in cloud environments. The role includes enabling interactions via voice, chat, email, or APIs, connecting AI to corporate systems and external models, and implementing evaluation and feedback mechanisms to ensure continuous improvement. Strong Python and Python ML skills are required, along with experience in agentic frameworks and cloud infrastructure. You may choose to work remotely or from one of our offices in Kraków, Wrocław, Warsaw, Łódź, Gdańsk, Poznań or Katowice. Responsibilities Develop and launch scalable conversational AI systems that operate across multiple channels, including chat, voice, email, and APIs Architect microservices and asynchronous systems for AI applications, ensuring high availability and performance Use Python to implement orchestration and decision logic — the control layer that manages tools, workflows, and system interactions Optimize AI models through fine-tuning and LoRA integration, making data-driven decisions between different approaches (FT vs RAG) Establish prompt engineering libraries and define evaluation protocols for prompt performance Design monitoring and evaluation frameworks, including dashboards, metrics, and human-in-the-loop feedback loops to maintain model quality and trust Work with data specialists to design pipelines for collecting, cleaning, and structuring information for AI agents Design CI/CD pipelines, container standards, and cloud strategies for infrastructure migrations, cost optimization, and high availability Requirements Strong background in Python, mainly for hooking up AI models, automating stuff, and handling orchestration logic 1–2 years of hands-on experience with Generative AI and large language models (LLMs) Practical experience in machine learning engineering: data preparation, working with vector databases in the cloud, and training/optimizing models Strong backend and frontend architecture experience Deep understanding of ML evaluation, tuning, and prompt engineering Experience working with cloud platforms such as AWS, GCP, or Azure, including container orchestration and CI/CD pipelines Experience with agentic frameworks (LangChain, LangGraph) and multi-agent system design Comfort with ML frameworks such as TensorFlow, PyTorch, or Scikit-learn is a plus We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview We will reach out to selected candidates exclusively EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.