Maven Securities is looking for software developers with the C# engineering and analytical skills to help drive our continuing success to the next level. You will work alongside the best traders and developers to help us optimise and automate our post trade systems, including reporting, position management, building new and innovative solutions in addition to enhancing our existing post trade systems.


  • Design and develop fit for purpose products to drive critical business functions with a focus on performance, testability, maintainability, and resilience
  • Critical to the role is handling large volumes of complex data from varied sources (Postgres and SQL Server databases, REST API’s, flat files)
  • Independently take ownership of, and responsibility for, the further development of existing applications - helping increase the test code coverage
  • Happy to work alongside multiple stakeholders – ensuring they are being provided with regular feedback for ongoing projects



  • 5+ years software development experience from any industry sector
  • Excellent C# ability including strong focus on testing processes
  • NET Core
  • Experience designing and building system architectures that scale and are resilient
  • Strong SQL skills and exposure to large datasets (Postgres, SQL Server).
  • Business communication skills and the ability to present information clearly and concisely.
  • Relish building great-looking and easy-to-use web based front ends.
  • Take pride in solid, lean, effective solutions that people enjoy utilising.

Nice to have:

  • Python experience and able to write proficient production level code
  • Experience with a range of libraries eg pandas, flask.
  • Modern Front-end UI development experience, especially React and TypeScript.
  • Event-driven design, DDD, CQRS and/or EventSourcing experience
  • Experience of working with Post Trade systems
  • Orchestrade experience



  • A great engineering environment whereby technology is key to our success
  • The upside of start-up without the associated risks
  • Great friendly, informal and highly rewarding culture
  • Informal dress code, loads of social events, etc.
  • A full benefits package and loads of perks like free food and drinks in the office
  • Fast growing global firm with plenty of opportunity where you will have significant impact



A proprietary trading firm formed in 2011, Maven Technology is all about trust, your impact, freedom, and team. We have an internal open-source approach to create a technology environment that is low bureaucracy and high engineering freedom, fostering close collaboration between Trading and Tech to ensure novel solutions have swift impact.

Maven has a culture that is relaxed and informal but highly rewarding of strong performance; there's no dress code, a hybrid working model, plenty of free food and regular social events. We have offices in London, Amsterdam, Hong Kong, Sydney and New York and will be opening a new Chicago office in early 2022.

Maven's code base is in C++ 20 and we have a modern stack throughout, making extensive use of template and meta programming, Python, FPGA and Julia.

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Maven is committed to creating a diverse and inclusive culture for our employees. It is crucial for us to understand the demographics of our candidate pool to measure our recruitment practices. There is no requirement for any candidate to answer our demographic questions. For candidates who complete the questionnaire, their data will be anonymised and aggregated to inform our strategy . Maven is an equal opportunity employer and this data will be used for opportunity monitoring purposes. 

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