AI Engineer - LLM, RAG & Agile Growth

Yellows; Warszawa; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Multisport package

Training opportunities

Coffee catch-ups

Job summary

Yellows is seeking an AI Engineer for a B2B contract to design and implement solutions based on language models and ML. You will collaborate with product and development teams, ensure quality and security, and shape AI practices within the organization.

Join a Scrum-driven team delivering AI, ML, and generative AI projects that automate processes, analyze data, and enhance product quality. You will work on client-focused applications with a partnership-driven culture and opportunities for growth.

Qualifications

• Proficiency in English for technical documentation and team communication.
• Strong Python experience and backend service development.
• Hands-on experience with LLM APIs (Anthropic, OpenAI, Google, Azure OpenAI or open-source).
• Experience building RAG systems and using vector databases.
• Prominent skills in prompt engineering and evaluating model responses.
• Solid understanding of ML/NLP fundamentals and their practical applications.
• Experience with REST APIs and service integrations.
• Proficient with Git version control.
• Knowledge of CI/CD pipelines and automated testing/builds.
• Basic Docker knowledge and exposure to one cloud provider (Polish National Cloud, AWS, GCP or Azure).

Responsibilities

• Design and implement AI solutions using LLMs from PoC to production integrations.
• Build and optimize RAG systems including vector DB selection and embedding strategies.
• Create AI agents/workflows leveraging tool use and function calling.
• Develop, test and optimize prompts for reproducibility and cost control.
• Collaborate with Product, Design, Backend, Frontend and QA to integrate AI components.
• Ensure quality, security and observability of AI solutions including monitoring and data protection.
• Propose tooling/framework improvements and contribute to internal AI standards.

Skills

English

Python

Backend services

LLMs/APIs

RAG systems

Vector databases

Prompt engineering

ML/NLP fundamentals

REST APIs

Git

CI/CD

Docker (basic)

Cloud providers

Tools

Anthropic Claude API

OpenAI API

Google Cloud AI API

Azure OpenAI

Job description

Yellows is seeking an AI Engineer for a B2B contract to design and implement solutions based on language models and ML. You will collaborate with product and development teams, ensure quality and security, and shape AI practices within the organization.

Join a Scrum-driven team delivering AI, ML, and generative AI projects that automate processes, analyze data, and enhance product quality. You will work on client-focused applications with a partnership-driven culture and opportunities for growth.