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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on a healthcare analytics platform featuring an AI Assistant powered by LLMs. Required skills include Python, TypeScript, AWS Bedrock, CubeJS and LLM tools such as Strands and LangChain. Responsibilities cover deployment and continuous improvement of the AI Assistant, maintaining tooling for LLM accuracy and secure data handling. The offer includes remote work and benefits like private medical care and sports cost sharing.
Senior AI Engineer – LLM / Agentic Systems (f/m/x)
Company: SQUARE ONE RESOURCES sp. z o.o.
from: 2 September 2026
to: 2 October 2026
170 - 180 złnet (+ VAT)/ hr.B2B contract (full-time)
Salary details
basic salary
Offer parameters
level:mid • senior
working mode:remote
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Python
TypeScript
Docker
Terraform
LangChain
AWS
LLM
Optional technologies
GitLab
GitHub
SQL
AWS Bedrock
Semantic Layer
AWS Redshift
CubeJS
Our requirements
- Python and TypeScript/JavaScript
- LLM application development (prompt design, tool/function calling, MCP, RAG, agentic workflows)
- One or more of: Strands, LangChain, Pydantic
- AWS API Gateway & Lambdas (Node.js / Python)
- Terraform / Infrastructure as Code
- Docker, Docker Compose
- Clean code principles and evaluation-driven development
Optional
- AWS Bedrock (or equivalent managed LLM platform)
- Broader AWS stack (Cognito, ECS Fargate, S3, CloudFront, IAM)
- GitLab/GitHub
- AWS Redshift and CubeJS
- Semantic Layer
- Database management (SQL, noSQL)
Your responsibilities
- Enable go-live and continuous improvement of the CES AI Assistant — a natural-language interface over the CES CubeJS analytics and semantic layer (90+ cubes) built on AWS Bedrock
- Design and maintain the agent's tooling (MCP servers, domain-aware tools) so the LLM reliably grounds answers in a large structured schema and returns correct results
- Build and run the evaluation pipeline that keeps a non-deterministic system trustworthy in a healthcare context, with per-user row-level security and no exposure of sensitive data
About the project
The project focuses on developing a modern internal analytics platform used by a global organization in the healthcare industry. The platform supports business teams in analyzing data and making more informed decisions regarding customer engagement.
A key part of the project is the development of an AI Assistant powered by Large Language Models (LLMs), allowing users to interact with the platform and explore complex data using natural language.
This is how we organize our work
This is how we work
at the client's site
What we offer
- Flexible engagement — preferably 100% capacity, but availability can be discussed
- Remote collaboration with a team working primarily in the Central European Time (CET) time zone
- Medicover
- Medicover Sport
- 100% remote
- Start ASAP
Benefits
- sharing the costs of sports activities
- private medical care
Recruitment stages
- 1.Initial recruiter screening
- 2.1st technical interview with Team Manager
- 3.Decision
SQUARE ONE RESOURCES sp. z o.o.
At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.
This is how we work
Senior AI Engineer – LLM / Agentic Systems (f/m/x)
170–180 zł / hr. (B2B)
I apply to:
SQUARE ONE RESOURCES sp. z o.o.
Warszawa, Masovian
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