Senior Software Engineer

HL are looking for a talented Senior Software Engineer to work on one of our Investment Growth product engineering teams in building market-leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £180 billion in assets on behalf of more than 2 million UK investors. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing Collaborate with cross-functional teams to deliver high-quality digital client journeys. Design and develop AWS cloud-native applications with TypeScript and React and manage them using Infrastructure as Code (IaC). Write high-quality, secure, tested and performant code. Create and maintain automated tests for new changes. Document all solutions according to team standards. Produce well throughout and clear solution diagrams. Provide engineering support and maintenance for existing applications. Continuously develop your own technical and interpersonal skills, with a willingness to learn and adopt new technologies and techniques. Provide coaching & mentoring to peers and junior members of the team Advocate for continuous improvement in ways of working, quality, security, performance, and CI/CD processes. Cultivate strong working relationships within the squad and across the organisation. Engage in working groups and communities of practice to support the development team. Skills Extensive professional experience with TypeScript, React and Node, deployed on AWS using IaC tools such as Terraform. Strong experience working in a truly full-stack role, including DevOps. Professional experience with React Native would be very beneficial. Experience of other languages, such as PHP or Java, would also be beneficial. Experience with unit, integration, and end-to-end testing tools and practices (e.g. Jest, Cypress, Backstop, Playwright). Experience with CI/CD and Trunk Based Development. Experience with observability tools and practices, including monitoring, logging, and tracing to ensure system reliability and performance. Experience with integration and onboarding third-party vendors, meeting with vendor engineering contacts, defining integration patterns, abstracting vendor APIs/data models from internal downstream services etc. Experience with the design and implementation of Microservices and RESTful APIs, including structuring, documenting, versioning and testing. Design and implementation experience using Event Driven Architecture. Proficient in various database technologies and their applications. Experience of data platform technologies and collaboration with Data Engineers. Adherence to WCAG accessibility standards. Awareness of website performance implications, best practices and other non-functional requirements. Proficient in collaborative code reviews, technical documentation, and advocating for excellent development practices to optimize for rapid and continuous delivery of client value within an Agile framework. Attributes Collaborate effectively with others across different disciplines in a cross-functional team. Excellent team skills, demonstrating a flexible approach to ideas: strongly formed but actively soliciting team input, and fostering an inclusive and psychologically safe environment. Clear communication, both in writing and verbally, with good numerical skills. Logical, analytical and methodical approach to problem solving. Pro-active, resourceful and able to use initiative. Pragmatic and focused on delivery. Efficient time management, with the ability to prioritise tasks, meet deadlines, and balance multiple responsibilities. Willingness to learn and a growth mindset, with a desire for professional development. Enjoys coaching and guiding others in a team and prioritises sharing knowledge. Persistent, with a pride in what you do.