Senior Software Engineer (AI & Data Platform)

We offer a B2B Contract:

• 180 – 215 PLN net/hour + VAT

We are looking for a hands-on Senior Software Engineer with experience in Python, AI and BigData to assist in design and implementation of our client's on-premise data platform with native AI agent capabilities.

Your focus will be end-to-end implementation, designing components, and getting things done. This role is perfect for someone who enjoys working across backend engineering, AI integrations, and data-intensive systems.

Responsibilties:

• Design and develop backend components of the AI & Data Platform, including microservices, REST APIs, and system integrations.

• Implement AI/LLM features such as embeddings, RAG interfaces, vector search, and model inference workflows.

• Work with large-scale data systems (structured & unstructured), integrating with lakehouse, distributed storage, or streaming components.

• Deliver end-to-end solutions — from technical design to implementation and deployment.

• Collaborate with the Platform Architect and engineers across Data, ML, and Software teams to refine platform capabilities.

• Ensure scalability, performance, and security of the platform services.

• Life insurance

• Multisport card

• Fully remote job

• Private medical care

• Flexible working hours

• B2B or contract of employment

• Amazing integration events on a regular basis

• Training budget (e.g. Microsoft Azure Certifications)

• Opportunity to impact our company culture build-up

• Work equipment (laptop, 2 monitors, and accessories)

• Initial interview with Julia, our recruiter - 30 minutes
• Technical interview with one of our technical interviewers - 30-60 minutes
• Interview with the client - 1 hour