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. 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: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode 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: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.