Morningstar

Software Engineer Mid Level C++ (Fix term 1 year)

United Kingdom · Work style not stated · Full time

Posted over 6 months ago: check it’s still open

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About the role

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EmployerMorningstar
LocationUnited Kingdom
Work styleWork style not stated
Employment typeFull time
Employer posted19 Jan 2026

About Morningstar: Morningstar is a leading global provider of independent investment insights, serving both individual and institutional investors across public and private markets. Our offerings include a wide range of data, research, and investment management services, with $300+ billion in assets under management. Operating in 32 countries, Morningstar supports financial advisors, asset managers, retirement plan providers, and more with comprehensive investment solutions.

The Role: We are looking for an amazing Developer to help us build and maintain our exchange connectivity software.This is a fix term contract for a year with a potential extension.

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.

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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.
There will be some out-of-hours 3rd line support, but we try to keep this to a minimum as we have a dedicated operations team who handle most issues.

Some key examples of the sort of work the team does:

Data feed development 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
Working with DevOps to improve automation in the development cycle

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

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