Python AI Engineer

Sii Poland; Szczecin; On-site; PLN 120,000 - 180,000; Full time

Job summary

A leading technology company seeks a skilled software engineer in Szczecin, Poland, to develop a scalable RAG service using Python and AWS technologies. The successful candidate will have over 5 years of software engineering experience, including a strong focus on building production-grade applications and RESTful APIs. Additional experience with AWS services is critical. Benefits include a supportive work environment and opportunities for professional growth.

Benefits

Great Place to Work

Solid financial situation

Medical care

Profit sharing

Comfortable and well-equipped offices

Qualifications

• Over 5 years of software engineering experience focused on Python.
• Minimum 3 years experience with AWS services.
• Experience building and managing high-volume RESTful APIs.

Responsibilities

• Design and deploy a scalable RAG service using Python.
• Define AWS infrastructure using the AWS Cloud Development Kit.
• Implement pipelines for unstructured data processing.

Skills

Python

AWS

RESTful APIs

Docker

GenAI concepts

Communication in Polish and English

Tools

GitLab CI

AWS Cloud Development Kit

Job description

As part of a project within our client, the engineering platform has recently been expanded with a RAG as a Service module — a reusable component supporting applications that leverage Retrieval-Augmented Generation. This solution is highly complex, widely visible across the organization, and strategically important for upcoming technology initiatives.

Join the project and contribute to the further development, stabilization, and maintenance of this solution.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications, competencies, and performance. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promote a diverse and inclusive work environment.

Your tasks

• Design, develop, test, and deploy a scalable and secure RAG service using Python and serverless AWS technologies
• Define and manage all required AWS infrastructure using the AWS Cloud Development Kit
• Implement robust pipelines for processing and embedding unstructured data (e.g., PDF, DOCX, HTML), making it ready for semantic search and retrieval
• Build and maintain a RESTful API for the service
• Maintain CI/CD pipelines (GitLab CI)
• Implement comprehensive monitoring and logging to track service health, performance, and cost. Proactively identify and resolve bottlenecks or issues
• Work closely with our cloud engineering, data science, and AI Platform teams to ensure seamless integration, operational excellence, and alignment with company-wide standards
• Focus on delivering value to business users

Requirements

• Over 5 years of professional software engineering experience with a focus on Python, including designing and building scalable, production-grade applications
• Minimum 3 years of hands‑on experience with AWS (AWS Lambda, Step Functions, IAM, VPC, S3, DynamoDB, API Gateway, CloudFormation)
• Proven expertise building and managing high-volume RESTful APIs, with a strong understanding of best practices for performance and security
• Familiarity with Docker and building CI/CD pipelines
• A strong conceptual and practical understanding of GenAI concepts, particularly embedding models, vector search, and reranking algorithms
• Practice with agentic or RAG-specific frameworks like LangChain or LlamaIndex
• Strong sense of ownership and a proactive approach to new tasks or any issues
• Excellent oral and written communication skills in both Polish and English
• Residing in Poland required

Nice to have

• Experience within the Pharmaceutical and BioTech industry

Job no. 260112-5MUV3

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care