Senior AI Software Engineer Engineer

Senior AI Software Engineer Engineer – team. blue

Location: Lisboa, Lisbon, Portugal

Company Overview

team. blue is an ecosystem of 60+ successful brands working together across 22 European countries to provide its 3. 5 million SMB customers with everything they need to succeed online by offering
-
- class expertise and services. team. blue's brands are a mix of traditional hosting businesses that offer services from domain names, email, shared hosting,
- commerce, and server hosting solutions and, as specialist Saa
S providers, adjacent products such as compliance, marketing tools, and team collaboration products. This broad product offering makes it a
- stop partner for online businesses and entrepreneurs across Europe.

Position Overview

We are looking for a highly skilled AI Software Engineer to unlock the potential of Gen
AI across the team. blue group. The ideal candidate will utilise their technical knowledge to build exceptional AI-driven products and experiences. This role is ideal for innovative developers eager to design, implement and integrate scalable AI solutions, focusing on APIs, RAG architectures, and agentic frameworks. It’s an exciting opportunity to shape the future of our AI for SMBs, to work in an agile environment, with the latest technologies including AI based coding assistants and bring your ideas to life.

Key Responsibilities

• Design and implement scalable AI powered software solutions, focusing on APIs, RAG architectures, and agentic frameworks
• Implement agentic AI systems using tools such as MCP servers and APIs
• Integrate AI software solutions into existing environments and workflows, ensuring seamless operation and performance optimization
• Test and deploy software solutions that meet business needs
• Participate in code reviews to ensure code quality and consistency
• Collaborate with
  - functional teams to understand requirements and deliver innovative AI solutions

Ideal Profile

• 3+ years of experience in Software Engineering, ideally in full stack/backend
  - focused software engineering
• Strong proficiency in Python programming (leveraging frameworks like Fast
  API, Flask), microservices architecture and
  - driven architecture (eg. Kaf
  Ka, SSE, Web
  Socket)
• Expertise in Large Language Models (LLMs) including fine‑tuning, prompt engineering, and working daily with models like GPT, Claude, Gemini
• Hands‑on experience with vector databases (e. g. , Open
  Search, FAISS) for efficient similarity search and semantic search & retrieval of text embeddings
• Practical experience deploying and scaling RAG systems and AI agents in a production environment
• Skilled in implementing conversational AI systems leveraging APIs like Open
  AI Chat Completion and Assistant endpoints
• Knowledge of Retrieval‑Augmented Generation (RAG) techniques to enhance model responses by integrating external knowledge bases during inference (would be a great plus)
• Strong problem‑solving skills with excellent communication and documentation skills
• Ability to work collaboratively with
  - functional teams

Right to Work

At any stage, please be prepared to provide proof of eligibility to work in the country you’re applying for. Unfortunately, we are unable to support relocation packages or sponsorship visas.

Everyone is welcome here. Diversity & Inclusion are at our core. Far above any technical competence, we value respect, openness, and trusted collaboration. We do not tolerate intolerance.

ESG & Sustainability

At team. blue, our commitment to caring for the environment and each other is at the heart of everything we do. Our latest impact report showcases our ongoing ESG efforts and ambitious sustainability goals. Interested in learning more about our dedication to making a positive impact? Check it out here.