Senior C++ Software Engineer - Orbis Consultants London

New Yesterday

Senior C++ Software Engineer
Up to £140,000 base + 50% bonus
Exciting Role in Cutting-Edge Financial Data Technology
Innovating High-Performance Data Storage in Finance
I’m working with a client who has developed a state-of-the-art serverless database technology that serves as the foundation for their data infrastructure within the financial sector. This technology, initially built for internal use, has since been open-sourced and is recognized for its ability to deliver extremely fast data retrieval and seamless integration with quantitative research workflows.
The team operates like a startup embedded within a larger financial organization, emphasizing innovation, ownership, and agility. This is a unique environment where a small, expert engineering team drives the development of a critical technology that supports complex data workflows at scale.
What You’ll Do and Gain
As a Senior C++ Software Engineer, you will:
Develop and optimize high-performance C++20 code that powers a serverless database running entirely on users’ machines, primarily utilizing AWS S3 storage, with support for Google Cloud and on-premise solutions. Focus on performance-critical areas such as algorithm efficiency, multi-threading, parallel processing, and network utilization. Collaborate closely with a small, agile team where engineers write their own requirements and there are no product managers, giving you direct influence over the product. Contribute to an open-source project with rigorous coding standards, enhancing your professional profile and technical skills. Integrate Python wrappers to support Python-based research tools, working alongside quantitative developers to streamline data workflows.
This role offers the chance to work in a dynamic, start-up like environment backed by a stable organization, where your work has a direct impact on the technology’s evolution and adoption.
Who They’re Looking For
The ideal candidate will have:
5 to 7+ years of professional experience primarily in C++ development, with strong expertise in modern C++20. Deep knowledge of performance optimization techniques, multi-threading, parallel processing, and efficient network utilization. Familiarity with Python and scientific libraries such as NumPy and Pandas (expertise not mandatory). Experience or strong interest in high-performance and big data systems, including data lakes or serverless architectures. A passion for writing clean, efficient, maintainable code and thriving in a fast-paced, ownership-driven environment. Bonus points for experience in financial markets or open-source contributions, though these are not required as the team supports learning and growth.
If you’re excited by the challenge of building next-generation data technology that powers critical financial workflows, this is a fantastic opportunity to join a talented, high-impact team.
Get in touch today!
Apply
Location:
London
Job Type:
FullTime
Category:
Engineer, Software Engineer, Senior, Engineering, Software

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