Principal Software Engineer – Investment Technology Services

We are seeking a highly skilled Principal Software Engineer to join our client's Technology Services team, based in London, United Kingdom. 

This is an exceptional opportunity to be part of a forward-thinking organisation within the financial services sector. 

The successful candidate will play a key role in developing and maintaining applications that drive investment decision-making and data integration, with a strong focus on backend services, data pipelines, and intuitive front-end systems.

In this role, you will:

• Develop robust back-end components in C#, delivering tested, accurate, maintainable, and high-performing solutions.
• Build intuitive and high-performing user interfaces using React.
• Diagnose and resolve application and data-related issues across the technology stack.
• Integrate systems with cloud platforms, particularly Microsoft Azure.
• Utilise Azure DevOps and GitHub Actions to implement robust CI/CD pipelines and workflow automation strategies.
• Collaborate closely with Client Analytics and Consultant teams to achieve aligned outcomes.
• Maintain clear, comprehensive documentation for codebases, APIs, and technical processes.
• Work directly with business stakeholders to gather and clarify functional and technical requirements.

Knowledge, experience and qualifications required:

• Significant experience in .NET / C# software development.
• Hands-on experience with Python, including frameworks such as FastAPI.
• Strong proficiency in front-end development using React.
• Good understanding and experience with SQL databases.
• Strong appreciation for unit testing and experience writing unit tests in both C# and Python.
• Familiarity with version control systems, particularly Git.
• Excellent communication, collaboration, and problem-solving skills.

Desirable knowledge, experience and qualifications:

• Familiarity with containerisation technologies such as Docker and Kubernetes.
• An understanding of microservices architectures and their implementation.
• Experience with NoSQL databases, including CosmosDB.
• Knowledge of front-end testing tools and frameworks.
• Experience with front-end design frameworks such as Material UI.
• Previous exposure to the financial services industry, especially in fixed income or investment management systems.
• Proficiency working with cloud-based data warehousing solutions such as Snowflake.
• Awareness of best practices in information security, especially within a cloud environment.

The position offers a competitive salary of £100,000 + Bonus + Benefits, and provides the opportunity to work in a dynamic, collaborative environment focused on innovation and technology-led value in the financial services domain.