Software Engineer - Full-Stack (React)

We are building a next-generation platform for one of the UK's leading financial services providers - trusted by over 2 million clients and managing approximately £150 billion in assets. This is a unique opportunity to help shape technology that transforms how people invest and achieve financial freedom.

We are looking for a Software Engineer to join our Dealing Journeys squad, delivering critical capabilities at the heart of the investment experience.

You will join our Trading Tribe - a domain responsible for end-to-end investment journeys, from pre-trade decision-making and order placement through to trade execution, delivering fast, reliable and seamless investing experiences at scale.

In this role, you will build and enhance modern applications using TypeScript, contributing to products and platforms used by millions of clients. Working closely with engineers, product managers and designers, you will deliver high-quality solutions while continuously developing your technical skills and engineering expertise.

By joining us, you will help deliver innovative, scalable solutions that make investing simpler, faster and more accessible for millions of investors across the UK.

Be part of HL's future. Be part of the future of investing. Shape it with us.

• Develop, maintain and improve high-quality software across web, mobile and backend services, following engineering, security and regulatory standards

• Collaborate with engineers, product managers and designers to deliver valuable new features and enhancements for our clients

• Build and enhance customer-facing experiences using React and React Native, while contributing to the APIs and services that support them

• Write clean, secure and maintainable code, actively participating in code reviews and adopting engineering best practices

• Support and improve existing applications, helping ensure they remain reliable, performant and scalable

• Contribute to the development of cloud-native and distributed systems that support business-critical customer journeys

• Develop automated tests and contribute to quality engineering practices throughout the software development lifecycle

• Apply modern secure coding practices and help ensure solutions meet regulatory and compliance requirements

• Document solutions and technical decisions in line with team standards

• Contribute to continuous improvement initiatives across engineering practices, tooling and developer experience

• Build strong working relationships across the squad and wider engineering organisation

• Participate in technical discussions, knowledge-sharing activities and communities of practice

• Continuously develop your technical and interpersonal skills while contributing to a positive and collaborative team culture

What you bring

• Commercial experience developing modern applications using TypeScript and React

• Good understanding of frontend engineering principles, including component-based architectures, state management and performance optimisation

• Solid knowledge of HTML, CSS and JavaScript/TypeScript

• Experience designing and consuming REST APIs and/or GraphQL services

• Understanding of cloud-native development practices and modern software delivery approaches

• Experience working with AWS and cloud platforms

• Knowledge of software design patterns, testing approaches and engineering best practices

• Experience with automated testing and test frameworks

• Understanding of CI/CD principles and development workflows

• Awareness of accessibility best practices, including WCAG compliance and keyboard navigation support

• Strong focus on writing secure, maintainable and well-tested code

• Collaborative and communicative, with the ability to work effectively within cross-functional Agile teams

• A proactive mindset and passion for learning new technologies and approaches

• Comfortable contributing to technical discussions and continuously improving your engineering skills

Nice to have

• Experience building mobile applications with React Native in a production environment

• Experience working with PHP applications and services

• Experience developing applications using Java

• Experience contributing to backend services and APIs

• Familiarity with microservice architectures and distributed systems

• Experience working within highly regulated industries such as financial services

What Success Looks Like

You'll be comfortable taking ownership of features from design through to production, collaborating closely with design, product and engineering teams, and proactively identifying opportunities to improve both the customer experience and the way we work.