AI Engineer / Full-Stack AI Systems | Kosmo

Hi!

We are Boosta, a holding tech company that creates, develops, and invests in digital businesses with global potential. Today, we collaborate with over 800 specialists from different parts of the world, and millions of users use our products and services.

We are currently looking for a strong AI Engineer to join Kosmo — a performance marketing company operating in highly competitive markets and providing partners with high-quality organic traffic (90% SEO-first).

Kosmo is a team of 70+ professionals, where a high-performance mindset goes hand in hand with a great sense of humor, and the ambition to lead and shape the market is part of everyone’s DNA.

In this role, you will be responsible for:

• Build AI agents and automated workflows for business operations.
• Design and develop AI-powered solutions using modern LLM frameworks.
• Work with RAG architectures, vector databases, and AI infrastructure.
• Automate website deployment and operational processes.
• Develop internal AI tools for SEO, content, and product teams.
• Build integrations using Python and APIs.
• Run experiments and optimize AI solutions based on performance metrics.
• Monitor production AI systems and continuously improve their quality.
• Collaborate with product and engineering teams to deliver scalable solutions.

Must-have experience:

• Experience building AI solutions with LLMs.
• Hands-on experience with AI agents or multi-agent systems.
• Strong Python skills.
• Experience with LangChain, LangGraph, AutoGen, CrewAI, or similar frameworks.
• Understanding of RAG architectures, embeddings, and vector databases.
• Experience integrating AI APIs and automating workflows.
• Basic knowledge of Docker, Linux, and CI/CD.
• Experience with AI-powered content generation or automation is a plus.
• Systems thinking, ownership, and a results-oriented mindset.

Our hiring flow:

• Step 1: Pre-screen.
• Step 2: Technical Interview.
• Step 3: Test Task.
• Step 4: Job Offer!

Kosmo opportunities we offer:

• a variety of internal projects, large budgets, and tangible results;
• work across 15+ geos in Tier-1 and Tier-2 markets;
• a strong team to grow alongside and share expertise with;
• 28 days of paid vacation + up to 30 sick leave days per year;
• medical insurance after the probation period;
• learning & development support: we cover external courses, conferences, and encourage knowledge sharing;
• flexible work format — choose what suits you best: remote, work from our Kyiv office, or coworking spaces in Lviv or Warsaw (with coworking compensation available in other cities as well);
• team-building, events, gifts, and plenty of other perks.

Apply for the role and become part of Kosmo!