Lead AI Software Engineer

team.blue Global; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading digital enabler in Greater London seeks a Lead AI Software Engineer to drive AI software projects and mentor a team. The ideal candidate has over 5 years of software engineering experience, particularly in Python and microservices. Responsibilities include designing scalable AI solutions and integrating these into operations. The role emphasizes innovative thinking and collaboration in an agile environment, supporting multiple SMBs across Europe.

Qualifications

• 5+ years of experience in software engineering, including 2+ years in a technical lead or management role.
• Strong proficiency in Python and expertise in microservices and event-driven architectures.
• Deep understanding of Large Language Models including fine-tuning and prompt engineering.

Responsibilities

• Lead and mentor a team of Applied AI Engineers.
• Design and implement scalable AI powered software solutions.
• Integrate AI software solutions into existing environments and workflows.

Skills

Python

Microservices

Event-driven architectures

Large Language Models

Problem-solving

Communication

Tools

FastAPI

Flask

Kafka

OpenAI Chat Completion

OpenSearch

AWS

Azure

GCP

Job description

Job Description

The most trusted digital enabler

team.blue is a leading digital enabler for companies and entrepreneurs. It serves over 3.3 million customers in Europe and has more than 3,000 experts to support them. Its goal is to shape technology and to empower businesses with innovative digital services.

Click here to read more about team.blue

Company Overview

team.blue is the market leader in enabling digital success for small and medium‑sized businesses (SMBs) across Europe, catering to over 3 million customers in 25+ languages. Our mission is to make online business success simpler, by providing our customers with all the tools and resources they need to excel online and remain ahead of the curve.

Position Overview

We are looking for a Lead AI Software Engineer, to lead our AI‑driven software projects, and unlock the potential of GenAI across the team.blue Group. This role combines deep technical expertise with leadership and strategic thinking. You will guide a team in designing and implementing scalable AI systems, including APIs, RAG architectures, and agentic frameworks while shaping the future of our AI for SMBs. You’ll work in an agile environment, with the latest technologies including AI based coding assistants and have the freedom to bring your ideas to life.

Key Responsibilities

• Lead and mentor a team of Applied AI Engineers, fostering growth, collaboration, and technical excellence
• Design and implement scalable AI powered software solutions, with a focus on APIs, RAG architectures, and agentic frameworks
• Build and deploy agentic AI systems using tools such as MCP servers and APIs
• Integrate AI software solutions into existing environments and workflows, ensuring seamless operation and optimal performance
• Test, monitor and deploy software solutions that meet business needs
• Participate in code reviews to ensure code quality and consistency
• Drive AI adoption across the organization as a recognized technical expert and thought leader

Ideal Profile

• 5+ years of experience in software engineering, including 2+ years in a technical lead or management role
• Strong proficiency in Python (e.g. FastAPI, Flask) and expertise in microservices and event‑driven architectures (e.g. Kafka, SSE, WebSocket)
• Deep understanding of Large Language Models (LLMs) including fine‑tuning, prompt engineering, and hands‑on expertise with models such as GPT, Claude, Gemini
• Practical experience with vector databases (e.g. OpenSearch, FAISS) for similarity and semantic search
• Proven ability to deploy and scale RAG systems and AI agents in a production environment
• Skilled in implementing conversational AI systems using APIs such as OpenAI Chat Completion and Assistants
• Strong problem‑solving, communication, and documentation skills, with the ability to collaborate effectively across teams

Nice to Have

• Experience building multi‑hop RAG systems with self‑consistency and chain‑of‑thought prompting
• Knowledge of AIOps / MLOps best practices, including deploying and monitoring real‑time inference models and ETL pipelines
• Experience with distributed data tools (e.g. Spark, Dask, Apache Beam)
• Familiarity with cloud platform technologies (e.g. AWS, Azure, GCP)

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.

Diversity & Inclusion

Come as you are. 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

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.