Junior Applied AI Engineer (Agents)

Sofia Stars is a fast-growing global service provider that guides high-growth businesses to success. Our range of tailored solutions includes R&D, Customer Support, Sales, KYC, Risk, and Anti-Fraud services. We make every connection shine with fresh tech and cultural understanding.

Duties and Responsibilities:

• Own AI agent behavior end-to-end;
• Influence product direction for AI systems;
• Design, build, and own LLM-powered AI agents in production;
• Drive architecture decisions and agent reliability;
• Partner with Product and ML to deliver business outcomes;
• Design agent architectures with tools, memory, and RAG;
• Own prompt design, evaluation, and iteration;
• Build complex workflows and human-in-the-loop systems;
• Ensure production readiness, monitoring, and scalability.

Role Requirements:

• Hands-on experience with LLM-powered systems;
• Strong Python or TypeScript skills;
• Experience with agent frameworks and workflow orchestration.

Our Excellent Benefits:

• Monthly, quarterly, and annual bonuses
• Food vouchers (102 EUR)
• Appreciation gifts (birthday, wedding, newborn, etc.)
• Up to 25 vacation days
• 6 undocumented sick leaves
• Medical insurance and dental coverage
• Sport card 70% coverage (Multisport and/or CoolFit)
• Office massages
• Breakfast, lunch & snacks in the office
• Education budget
• Monthly team events
• Great office location

Important information:

• This is an office-based position in Sofia, Bulgaria.

Grow fast, shine globally

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