Principal Engineer
AJ Bell
Manchester, England, United Kingdom
AJ Bell Manchester, England, United Kingdom Principal Engineer AJ Bell Manchester, England, United Kingdom We are a technology-driven company building high-performing, scalable, and resilient software solutions. Our teams work with a modern tech stack including .NET, MongoDB, AWS, Jenkins, SQL Server, and streaming technologies. We re looking for a hands-on Principal Engineer who can code, design scalable systems, manage Staff Engineers, and drive technical excellence across multiple teams. This role is perfect for a technical leader who still enjoys writing code while shaping architecture and mentoring engineers. About the Role As a Principal Engineer, you will play a critical role in: Architecting scalable, high-performance systems Coding and reviewing mission-critical features (at-least 60% hands-on) Managing and mentoring Staff Engineers & Senior Developers Driving best practices in software development and AI-powered engineering Owning non-functional requirements (NFRs) such as security, scalability, and reliability Optimising cloud infrastructure and CI/CD pipelines If you thrive on solving complex technical challenges, leading by example, and empowering teams, this is the role for you! Key Responsibilities Hands-on coding (at least 60% of the time), working on core application components and system architecture Technical leadership guiding multiple teams and ensuring best practices Managing & mentoring Staff Engineers supporting career growth and technical excellence Architecting and scaling distributed systems and cloud-native applications Defining and enforcing non-functional requirements (NFRs) scalability, security, performance Implementing Test-Driven Development (TDD) and automation best practices Optimising CI/CD pipelines with Jenkins & AWS Leading containerisation efforts with Docker & Kubernetes Collaborating with cross-functional teams to align technical solutions with business needs Research and implement AI-driven development tools to boost productivity What We re Looking For Proven experience as a Principal Engineer / Lead Engineer / Software Architect Proven hands-on coding experience with .NET, SQL Server, MongoDB, Angular/NextJS, AWS, and streaming technologies Strong experience in building scalable and high-performance applications Strong experience managing Staff Engineers & Senior Developers Solid understanding of Test-Driven Development (TDD) and modern testing frameworks Experience with Docker & Kubernetes for containerisation and cloud deployment Strong knowledge of CI/CD pipelines, automation, and deployment best practices Experience with AI-assisted development tools is a plus Excellent leadership and communication skills able to coach and influence team About Us AJ Bell is one of the fastest-growing investment platform businesses in the UK offering an award-winning range of solutions that caters for everyone, from professional financial advisers, to DIY investors with little to no experience. We have over 561,000 customers using our award-winning platform propositions to manage assets totalling more than £89.5 billion. Our customers trust us with their investments, and by continuously striving to make investing easier, we aim to help even more people take control of their financial futures. At AJ Bell, our people are the heart of our culture. We believe in building strong connections by working together. That's why we offer a hybrid working model, where you ll spend a minimum of 50% of your working time per month in the office. For new team members, an initial period will be full-time in the office to help you immerse yourself in our business and build valuable relationships with your colleagues. AJ Bell is committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and all employees are empowered to bring their whole self to work. If you like the sound of the above, or just want to know more about the company and the role, we'd love to speak to you. Seniority level Mid-Senior level Employment type Full-time Job function Information Technology #J-18808-Ljbffr