EPAM SystemsWe are seeking a Lead AI Full Stack Developer to serve as technical anchor and people leader for a high-performing AI teams.
This role combines deep technical contribution with hands-on leadership — setting technical direction, establishing engineering standards, mentoring developers, and personally driving the most complex aspects of AI SDLC and building complex Gen AI solutions. The ideal candidate brings a rigorous Computer Science foundation, mastery-level programming, proven LLM expertise, and command of AI-augmented development practices at scale.
Define the technical direction, architecture and engineering standards for AI-enabled SDLC in collaboration with the Solution Architect and CTO
Lead the design and implementation of AI systems including RAG pipelines, multi-agent platforms and full-stack AI applications
Contribute hands-on to development by building complex components and conducting code reviews
Evaluate and select technologies, frameworks, models and cloud services with a focus on reliability, security and cost efficiency
Establish and enforce coding, testing, documentation and AI tool usage standards across the engineering team
Mentor and support AI Full Stack Developers through feedback, guidance and career development
Drive project planning, technical estimation and risk management
Communicate technical solutions and trade-offs clearly to stakeholders
8+ years of software development experience including 2+ years in a leadership role
Bachelor’s degree in Engineering or related field; Master’s or PhD is a strong advantage
Strong foundation in computer science fundamentals such as data structures, algorithms, distributed systems and system design
Proficiency in at least one primary programming language (Python preferred) such as Python, TypeScript/JavaScript, Java, C# or Go
Experience with software architecture and design principles including microservices, event-driven architecture, CQRS, SOLID and domain-driven design
Experience designing APIs (REST, GraphQL, gRPC) and building full-stack applications
Experience with relational, non-relational and vector databases
Hands-on experience with AI systems including RAG architectures, LLM frameworks (LangChain, LlamaIndex) and agent-based platforms
Experience with cloud platforms (AWS, Azure or GCP), Docker, Kubernetes, CI/CD and infrastructure as code
Self-starter with ability to drive initiatives independently and elevate team performance
Experience with LLM fine-tuning and open-source ecosystems (Hugging Face, vLLM, Ollama)
Familiarity with LLM evaluation and observability tools (RAGAS, LangSmith, Weights & Biases)
Experience with event-driven systems, Kafka, RabbitMQ or graph databases
Exposure to multimodal AI applications (vision, audio, document processing)
Open-source contributions, SDK/platform development or familiarity with AI governance frameworks
Opportunity to Engineer your Future and to drive the world’s digital transformation with top industry clients
Personal development program that will allow you to be valued for your strengths
Wide range of professional trainings and workshops
Being part of a collaborative, fast-growing, and innovative design team
Established and accelerated growth toward different career paths, competencies, and roles
Broad projects variety and possible mobility between projects over the time
Collaboration in a multicultural environment and exchange of best practices with colleagues around the world
Varied social benefits, Sports, Transportation and Health programs
Work-life balance and flexible schedule, team buildings and sport opportunities
Modern office/collaboration spaces (incl. new Infinity Tower business center, Sofia)
Hybrid By Design - we provide you with the best productivity options from the 2 worlds. Meet, socialize and enjoy F2F time with your colleagues, while working from the modern EPAM's office for a few days per week and benefit from the EPAM's virtual working environment - making you able to be productive and work from remote for the rest of the week
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