Senior AI & LLM Test Automation Engineer

We are seeking an experienced Senior AI & LLM Test Automation Engineer to optimize and expand an automated testing framework for a Retrieval-Augmented Generation (RAG) Knowledge Base deployed in AWS. This role involves leveraging RAGAS metrics and LLM-as-a-judge techniques to ensure the accuracy, relevance, safety, and scalability of AI systems, with a hands-on approach to designing, implementing, and monitoring effective test solutions. ResponsibilitiesReview existing LLM/RAG test automation workflows, identify gaps, and design an improved testing architectureImplement automated test pipelines that utilize RAGAS for retrieval/generation evaluation and LLM-as-a-judge for subjective quality and safety checksIntegrate testing pipelines with AWS services such as S3, Lambda, CloudWatch, OpenSearch, RDS, and SQSDefine and manage evaluation rubrics, set metric thresholds, implement regression alerting systems, and generate reporting dashboardsEnsure scalability, reproducibility, and continuous quality monitoring within CI/CD pipeline environmentsCollaborate with AI/ML engineers, DevOps teams, and product stakeholders to align testing metrics with project goalsStay updated on advancements in LLM and RAG evaluation frameworks, integrating relevant improvements into the testing processesTroubleshoot, document, and resolve automation framework issues to ensure robust performance and reliabilityContribute to knowledge sharing, documentation, and training sessions related to the RAG testing framework Requirements3+ years of proven experience in LLM and RAG evaluation frameworks, including RAGAS and prompt-based judging automationKnowledge of AWS cloud services, particularly compute, storage, orchestration, and monitoring solutionsFamiliarity with vector databases and principles of semantic similarity metricsBackground in Python or Java, with the capability to apply these in automated testing environmentsUnderstanding of KPI formulation and the ability to translate KPIs into actionable, automated testing logicSkills in defining and improving testing pipelines within complex AI systemsExcellent command of written and spoken English (B2+ level) Nice to haveProficiency in LangChain/LlamaIndex frameworks or comparable RAG frameworksUnderstanding of CI/CD workflows and pipelines We offerWith us you can:Work on a flexible schedule remotely or from any of our comfortable offices or coworking spaces in UkraineReceive the necessary equipment to perform your work tasksChange projects and technology stacks within EPAMGain experience in various business domains (Insurance, E-commerce, Healthcare, Finance, Travelling, Media, Artificial Intelligence, and more)Relocation opportunities may be available for eligible candidates, depending on the role and openings at other EPAM locationsParticipate in volunteer, charity programs and communities (both technical and interest-based)We focus on your professional growth:You can plan your individual career path together with your managerReceive regular feedback from colleaguesImprove your English for free with certified teachers (Speaking Clubs, client interview preparation courses, etc.)Get the opportunity to undergo free training and certification in AWS, GCP, or Azure CloudsUse the internal E-learn training program (18,200+ specialized training and mentoring programs)Access corporate accounts on LinkedIn Learning, Get Abstract and other partner resourcesStudy at EPAM Solution Architecture School with the instructors who are practicing architectsDevelop as a leader, join Delivery Management, Resource Management, Leadership Essentials school and moreParticipate in internal communities (500+ meetups, technical discussions, brainstorming sessions, online events and conferences annually)What we offer:Vacation and sick leave (including a sick leave without a medical certificate)A wide range of Voluntary Medical Insurance programs providing both medical treatment and various preventive options (including sports activities)Medical insurance for family members at corporate ratesCompany support during significant life events (childbirth or adoption, marriage, etc.)Support for psychological comfort: discounts on services from mental health specialists or coaches, thematic trainingE-kids program - a free programming language training program for EPAMers' children Kindly note that this role supports remote work, but only from within Ukraine. Kindly be advised that the set of benefits, including learning, certification, and other opportunities, may vary depending on the role you apply for. Our recruiter will be able to share more details about the specific opportunity during your general interview. EPAM strives to provide its global team of over 61,700 professionals in more than 55 countries with opportunities for professional growth from day one of collaboration. Our colleagues are the source of EPAM's success, so we value cooperation, strive to always understand our clients' business and aim for the highest quality standards. No matter where you are, you will join a dedicated, diverse community that will help you realize your potential to the fullest.