Software Engineer

Hybrid – London | Global FinTech Innovator

Our client is an established yet fast-growing FinTech specialising in high-performance market data analytics. Their platform ingests and processes terabytes of global trading data daily, powering decision-making for leading investment firms, exchanges, and research institutions.

They're now seeking a C++ Engineer to join their equities data team, helping scale the next generation of data-processing systems within a collaborative engineering leadership team.

This role ideal for someone who thrives on solving deep engineering challenges in C++.

The Role

  • Development for the firm's equities data processing platform, working alongside other engineers and a senior architect..
  • Develop and refine C++ market-data parsers and processing engines that handle high-frequency and reference data at scale.
  • Enhance system performance, fault-tolerance, and scalability, leveraging modern AWS-based distributed infrastructure.
  • Participate in a light-touch support rotation to ensure smooth daily operation of the firm's data feeds.

About You

  • Strong C++ development experience on Linux, delivering robust, performant systems into production, ideally 2 years or more.
  • Solid Python capability for orchestration, data tooling, and process automation.
  • Experience with large-scale financial or market data, particularly equities or other exchange-traded products.
  • Familiarity with modern engineering practices — CI/CD, source control, automated testing, and containerised deployment.
  • Excellent communication, organisational, and problem-solving skills.

Contact:

For further details or a confidential discussion about this opportunity, please reach out to Ciara Clarke.

Job Details

Company
Harrington Starr
Location
Northampton, Northamptonshire, UK
Employment Type
Full-time
Posted