Your day-to-day:
• Explore and preprocess raw, messy datasets; design labeling and data strategies where needed.
• Prototype model ideas, agentic/inference systems, prompt strategies, fine-tuning, and rigorous evaluations of hypotheses.
• Translate prototypes into production: build RESTful APIs, containerize applications (Docker), and deploy reliably.
• Monitor production performance, run ablation studies, and iterate with product, UX, and data teams to improve impact.
• Identify and investigate key open questions — why are these clusters meaningful, what decisions do they drive? — and craft well-reasoned solutions.
• Tackle ambiguous problems with curiosity, initiative, and a strong sense of ownership.
• Collaborate with cross-functional teams (Product, Design, DevOps, and UI) to turn ideas into shipped, impactful features.

Your skills and experience:
• Strong Python programming skills with deep, hands-on experience.
• 3+ years of experience working on LLM-related or advanced AI model projects (prompting, fine-tuning, or building generative agents).
• Knowledge of TypeScript, JavaScript, React, and front-end development fundamentals.
• Proven experience developing robust RESTful APIs and containerizing applications (Docker; Kubernetes is a plus).
• Solid Linux and DevOps skills, including Git, Jira, CI/CD pipelines, and performance monitoring.
• Strong analytical mindset — you don’t just build clusters; you interpret their meaning, communicate impact, and connect insights to business outcomes.
• Ability to independently identify important questions and develop thoughtful, well-reasoned answers.
• Motivation to solve problems without ready-made solutions and to explore the unknown.
• Strong data analytics skills — beyond modeling, you interpret results, assess significance, and drive product decisions.

Benefits that fuel your growth:
• 360 Growth: We provide limitless learning opportunities: access to platforms like Reforge and Coach Hub, global conferences, physical and digital libraries, feedback culture, and mentoring through TesoXchange. Advance your career with internal mobility and grow with a team eager to share knowledge and support your success.
• Freedom & responsibility: Work on your terms: from modern offices in Kaunas and Vilnius, the comfort of home, or anywhere in the world. Enjoy flexibility in managing your schedule and bring your ideas to life in a fast-paced, dynamic environment.
• Wellness simplified: Your health comes first with insurance from Day 1, gym memberships, recharge leave, Headspace subscriptions, and regular health checks. Join our wellbeing-dedicated events, sports, arts, and hobby clubs, or simply enjoy the balance of a lifestyle that prioritizes wellness.
• Work hard – play hard: Celebrate your achievements with company events like Summerfest & Winterfest, Town Hall, Meet the Client initiatives, team-buildings, and workations. Enjoy