AI Engineer
Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together!
We are looking for an AI Engineer who enjoys building end-to-end AI solutions from backend services and APIs to intelligent workflows and user-facing experiences.
You’ll work on real production AI systems using modern LLM infrastructure, agentic workflows, RAG pipelines, and enterprise automation tooling. This is a hands on engineering role focused on rapid delivery, production quality, and reusable AI components that scale across multiple use cases and clients.
Our AI Engineering Stack
Microsoft Copilot+Copilot Studio
VS Code+GitHub Copilot
LangChain/LangGraph
FastAPI
n8n
PostgreSQL+pgvector
Redis
Portkey (LLM Gateway)
Langfuse (Observability)
DeepEval/RAGAS
Docker + Kubernetes (AKS)
Terraform
What You’ll Do
Build AI services and workflows in Python (FastAPI preferred)
Develop and optimize RAG pipelines using pgvector and retrieval best practices
Implement agentic workflows with LangChain/LangGraph
Integrate AI systems with external APIs, tools, and enterprise workflows
Build lightweight AI user experiences (chat/task/internal tooling)
Work with Microsoft Copilot and Copilot Studio solutions
Add observability, tracing, and evaluation for production AI systems
Contribute to CI/CD, deployments, testing, and reusable internal AI components
What We’re Looking For
2-4+ years of experience as a Software Engineer, AI Engineer, or ML Engineer
Strong Python engineering skills and API development experience
Experience with RAG systems and vector search
Hands-on experience with LangChain and/or LangGraph
Experience delivering user-facing AI features
Comfortable working with REST APIs and production systems
Familiarity with observability/debugging tools (Langfuse or similar)
Nice to Have
Experience with Microsoft Copilot/Copilot Studio
Basic frontend/UI skills (React, Chainlit, etc.)
Experience with n8n or workflow automation tools
Azure/AKS/Terraform exposure
Understanding of enterprise automation/RPA concepts
Perks and benefits:
Comprehensive benefits-enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers.
Flexibility-adaptable working hours and remote/hybrid work options to suit your lifestyle & location.
Career growth-access to professional development and learning opportunities, including perks from our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more.
Global collaboration-work with a diverse, international team.
Innovative environment-be part of a forward-thinking and growth-oriented workplace.
Engaging community-participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work.
Team-building events, including our company tradition-an annual company event in Mazury.
A welcome pack to start your journey with us on a positive note.
Recruitment process
HR call
Interview with the dedicated Client
Final decision/Feedback
Sounds interesting? Click "Apply" and have a chance to hear more!
AI Engineer
AI Engineer