Software Engineer (GenAI)

Job Description

This is an fantastic opportunity for a Software Developer (GenAI) to join at an exciting time for AJ Bell as we expand the usage of AI within the business. Our GenAI development team are at the heart of this growth and we have a strong team working environment, training and excellent career progression for the right person. Our strategy is to have a cross-functional development team, with team members working on all areas of our technology stack and propositions.

What We're Looking For

We’re seeking an energetic and driven software developer with strong skills and/or interest in Generative AI and large language models to help us deliver cutting‑edge GenAI solutions across our business. This is a unique opportunity to not only work with advanced AI technologies but also build and deliver innovative solutions for our business and stakeholders. People who are excited by GenAI technology, love pushing the boundaries of what's possible while at the same time keeping an eye on the bigger picture and ensuring the best outcomes for our stakeholders by providing straightforward but robust solutions.

Key Technical Skills

• Strong knowledge and deep experience of Python programming, libraries and toolchains
• Familiarity with large language models (LLMs) like GPT, Gemini, and open‑source models such as Llama and MRR
• Solid understanding of RESTful API design and implementation
• Git based source control and JIRA

Bonus Points For

• Knowledge/experience working with Cloud, preferably AWS
• Knowledge of AI/ML and latest AI trends & technologies
• Familiarity in LLM frameworks and libraries such as LangChain, Langfuse, LiteLLM
• CI / CD / Docker / Kubernetes

Soft Skills

• Agile / SCRUM
• Strong technical, problem solving and communication skills
• Keen to learn and develop new technical & non-technical skills
• Passionate, self‑starting, flexible and enjoy working in fast‑paced environments

About AJ Bell

AJ Bell is one of the UK’s fastest‑growing investment platform businesses, providing award‑winning solutions for everyone, from professional financial advisers to first‑time investors. Today, over 723,000 customers trust us to manage more than £108.7 billion of assets. By continually striving to make investing simpler and more accessible, we’re helping more people take control of their financial futures. We’re proud to be recognised as one of the UK’s Best 100 Companies to Work For for six consecutive years, and a Great Place to Work® in 2025 and 2026 a reflection of our supportive and collaborative culture.

What We Offer

• 25 days holiday, increasing with service + buy/sell scheme + bank holidays
• 6% Pension with matched contributions
• Discretionary bonus scheme
• Share schemes (including free shares and BAYE)
• Health Cash Plan and discounted private healthcare
• Free onsite gym
• Enhanced family leave (subject to qualifying criteria)
• Travel and bike loan schemes
• Employee Assistance Programme

Life at AJ Bell

• Regular social events including summer and Christmas parties
• Learning and development opportunities tailored to you
• Casual dress code
• Friendly, supportive team environment

Our ways of working

We offer hybrid working, with a minimum of 50% of your working time per month spent in the office. For new starters, there’s an initial period of full‑time office working to help you settle in and build relationships.

Inclusion & Diversity

We’re committed to creating an inclusive environment where everyone feels respected and able to be themselves at work. We welcome applications from all backgrounds and make hiring decisions based on skills, experience and potential.

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