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.

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