Software Engineer; Trading

Excited To Grow Your Career?

Our Purpose Is To Make It Easy For People To Save And Invest For A Better Future. We Are Looking For Great People To Join Us, So Please Come And Invest In Your Future At Hargreaves Lansdown.

We know that sometimes people can be put off applying for a job if they don't tick every box. If you're excited about working for us and have most of the skills or experience we're looking for, please go ahead and apply. We’d love to hear from you!

Join HL and be part of the team, building software for the UK’s largest investment platform. Hargreaves Lansdown (HL) – the UK’s number one platform for private investors, trusted by 1.9 million clients with over £155 billion in savings and investments. For over 40 years, HL has been helping people save and invest for a better future, earning over 200 industry awards, including Best Investment App and Best for Customer Service in 2024.

Our solutions are used daily by millions of clients, helping to power the operations of a leading financial institution.

Our culture is built on innovation, knowledge sharing, and continuous improvement—and we're looking for talented engineers to join a team developing products using Java and Type Script. We are looking for a Software Engineer to help support our dedicated, friendly and growing Trading Team to deliver critical new functionality to our clients and internal users. If you enjoy working with clean architecture, modern technologies, and being part of a supportive team that learns from each other, we’d love to hear from you!

Key Duties and Responsibilities

• Build applications with Java and Type Script and run on AWS or Kubernetes.
• Build infrastructure as code using Terraform and AWS services.
• Establish and maintain automated tests for the changes being implemented.
• Write high quality, secure, tested and performant code.
• Work collaboratively with others in a cross functional team to deliver high quality digital client journeys.
• Advocate for continuous improvement within the team including for the ways of working, quality, security, performance and CI/CD processes.
• Responsible for documenting all solutions, produced to agreed team standards.
• Demonstrate a willingness to learn and further technologies & techniques embraced by the development team.
• Cultivate strong working relationships both within working squad and in HL as a whole.
• Actively participating in working groups and communities of practice designed to support the development team.
• Continually develop both technical and interpersonal skills.
• Providing engineering support for existing applications when necessary.
• Providing coaching & mentoring to peers.

• Experience of developing and maintaining client and server-side applications.
• Experience of developing and maintaining infrastructure as code.
• Experience of developing using AWS.
• Experience of debugging, root cause analysis and resolution of production issues.
• Experience with unit, integration, and end-to-end testing tools and practices.
• Experience with integration and onboarding 3rd party vendors, defining integration patterns, abstracting vendor APIs/data models from internal downstream services etc.
• Experience performing code reviews.
• Experience operating within an Agile framework.
• Experience of working in a Dev Ops culture.

• Excellent knowledge of Java and Spring Framework.
• Working knowledge of Type Script and React/Node.js.
• Professional experience with AWS (S3, ECS, EKS, SQS, SNS, Lambda) using IaC tools such as Terraform.
• Hands‑on experience with unit, integration and end-to-end testing tools and practices.
• Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking.
• Knowledge of the design and integration patterns.
• Skilled in developing secure and maintainable code.
• Proficient in relational and non-relational database technologies.
• Understanding CI/CD pipelines and Trunk Based Development.
• (Desirable) Knowledge of Kubernetes.

• Excellent collaborator, naturally works well with others across different disciplines in a cross functional team.
• Excellent communicator (written and…