Senior Software Engineer

We now have an exciting opportunity for a Senior Software Engineer to join the Operational and Regulatory Technology department for an award-winning investment platform, offering a collaborative team working environment, training and excellent career progression.

Our strategy is to have a cross functional development team, with team members working on all areas of our technology stack and propositions.

What to expect:

• Agile methodologies and a passion for continuous improvement and building a high-performance engineering team
• Guide and mentor the team to design and deliver high quality products
• Consider architectural and non-functional requirements and work with the team to deliver

Tech Competency

• Significant commercial experience developing services and APIs with C#, .NET core, Mongo and/or SQL with techniques such as domain-driven design and MVC.
• Strong technical background in web development with Angular/React/VueJs.
• Experience in developing HTTP-based APIs and implementation of RESTful services with JSON.
• Thorough understanding of CI/CD pipelines
• Practices Test Driven Development and is comfortable with various test frameworks and concepts.
• A proven record in developing scalable, highly available and highly performing middle-tier components.
• Familiarisation with containerisation and tools like Docker and Kubernetes
• Experience of developing, deploying, and maintaining Cloud-Based solutions on AWS
• Understand principles behind highly performing web pages
• Experience/Familiarity with Entity framework core.
• Experience/Familiarity with communications technologies (Web API, Google Protocol Buffers) and message queues (e.g. RabbitMQ, SQS)

Soft skills:

• Agile / SCRUM / SAFe
• Strong communication skills, written and verbal
• Very motivated with high levels of drive and enthusiasm
• E-commerce and/or financial services experience   

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

• 26 days holiday, increasing with service + buy/sell scheme + bank holidays
• 7% 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.