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Morningstar

Mid Level C++ Software Engineer - Market Data Content London

Sorry, this job was removed at 12:14 p.m. (GMT) on Wednesday, Jan 28, 2026
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Hybrid
London, Greater London, England, GBR
Hybrid
London, Greater London, England, GBR

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About the role:
We are looking for an amazing Developer to help us build and maintain our exchange connectivity software.
Market Data powers all of Morningstar, as well as our clients so having the best of technology to do this is critical to the company's success. We receive billions of messages every day from our direct financial exchange connections, which we process into a form useable by our customers. At present, we process over 40 billion messages per day and with data volumes significantly increasing year-on-year, you can imagine how this needs a high level of engineering skill to keep it under control.
You will need to work in an agile, multi-functional team of developers and testers to build and maintain our exchange connectivity components. You'll need to be happy working in short cycles, with frequent deliveries while improving the overall quality of the development process.
Job responsibilities:
Work within a team of approx. 4 developers and 2 QA, focused on building and maintaining our exchange connectivity software. You will need to be rigorous in writing efficient code and encourage continuous improvement of how we build, test and deploy our system. You'll be working with a mix of experience levels so will have the opportunity to both learn and mentor depending on where you are in your career.
Some key examples of the sort of work the team does:
+ Data feed maintentace for high volume low latency exchange connections
+ Development and maintenance of key libraries used by the entire team
+ Development of key underlying transport protocols for transmission of data.
Qualifications:
+ A bachelor's degree or equivalent in a software development or similar essential.
+ Experienced in C/C++ development (Typically a minimum of 2 years)
+ Experience of development on Windows platforms
+ Experience of the full software development lifecycle
Nice to have: + Knowledge of current communication protocols (specifically TCP/IP and multicast)
+ Knowledge of automated testing and deployment techniques used in a CI/CD environment
Morningstar's hybrid work environment gives you the opportunity to collaborate in-person each week as we've found that we're at our best when we're purposely together on a regular basis. In most of our locations, our hybrid work model is four days in-office each week. A range of other benefits are also available to enhance flexibility as needs change. No matter where you are, you'll have tools and resources to engage meaningfully with your global colleagues.
301_MstarEurLtd Morningstar Europe Ltd (UK) Legal Entity

Morningstar London, England Office

1 Oliver’s Yard 55-71 City Road , London, United Kingdom, EC1Y 1HQ

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