Senior AI-Native Engineer

We are seeking a Senior AI-Native Engineer to design AI systems that other engineers and customers depend on, take them to production, and measure whether they work. This role operates the AI-native way: spec first, tests first, with coding agents handling implementation under review.

Responsibilities

• Design and run production LLM systems: multi-stage pipelines or agents with a curated tool set, output schemas, validation, retries and failure recovery
• Build and maintain evaluation frameworks: golden datasets, regression evals on every prompt change, LLM-as-judge with spot checks, production telemetry
• Decide where work is autonomous, where it assists, and where a person approves
• Deliver spec-first and test-first with coding agents, and keep project context files (AGENTS.md, CLAUDE.md, steering files) deliberate and token-aware
• Integrate AI steps into CI/CD (review gates, test generation, quality hooks) and tune them against false positives
• Estimate AI cost before building, measure it after, and apply cost levers (model routing, context trimming, caching, batching, limits)
• Publish reusable skills, prompts, tool schemas, eval sets and MCP servers and keep them current
• Raise AI failures early and fix them structurally
• Help new teammates adopt the team's AI workflow

Requirements

• At least one AI workflow or system running in production or CI without daily attention, which the candidate can explain in terms of trigger, users, own part, and how they know it works
• 5+ years of professional software engineering experience with production ownership
• 2+ years of experience building with LLMs or agents on real projects
• Expertise in multi-step LLM or agent design: tool restriction, output schemas, validation, fallbacks, latency trade-offs
• Showcase of an evaluation approach built or extended by the candidate
• Background in fixing wrong outputs with structural changes rather than re-runs
• Understanding of what drives the cost of their own AI work, with experience using at least one cost lever with a measured effect
• Skills in clear communication, such that a peer could rebuild their work from their description

Nice to have

• Experience with multi-agent systems in production and brownfield discovery on a legacy codebase
• Familiarity with AI steps in CI/CD with measured outcomes (PR cycle time, defect density, AI acceptance rate)
• Proficiency in more than one model provider or platform, with reasons for each
• Knowledge of tracing and observability for LLM systems
• Experience in security-sensitive environments

We offer

With us you can:

• Work on a flexible schedule remotely or from any of our comfortable offices or coworking spaces in Ukraine
• Receive the necessary equipment to perform your work tasks
• Change projects and technology stacks within EPAM
• Gain 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 locations
• Participate 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 manager
• Receive regular feedback from colleagues
• Improve 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 Clouds
• Use the internal E-learn training program (18,200+ specialized training and mentoring programs)
• Access corporate accounts on LinkedIn Learning, Get Abstract and other partner resources
• Study at EPAM Solution Architecture School with the instructors who are practicing architects
• Develop as a leader, join Delivery Management, Resource Management, Leadership Essentials school and more
• Participate 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 rates
• Company support during significant life events (childbirth or adoption, marriage, etc.)
• Support for psychological comfort: discounts on services from mental health specialists or coaches, thematic training
• E-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 62,350 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.

Remote in Ukraine