Software Developer jobs in United Kingdom

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Client: QuantConnect

Location: Kingston upon Hull, East Yorkshire, United Kingdom

Job Category: Other

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EU work permit required: Yes

Job Views: 4

Posted: 26.06.2025

Expiry Date: 10.08.2025

We serve investors, traders, and quants with a platform to design investment strategies. They code up trading strategies and test them on historical data. When they're ready, they can live trade on their brokerage.

Under the hood, we curate and update hundreds of terabytes of data - covering financial data (e.g., stock prices, options prices), fundamental data (e.g., PE Ratios, company debt), and alternative sources (e.g., news articles, sentiment). We have a powerful data processing stack that handles ingestion and distribution of all this data to our different consumers who need it.

Note: We have a slight preference for UK/Europe applicants so you're awake at 4 am ET long before the markets open.

We're seeking a full-time, mid to senior C# engineer to manage, maintain, and expand our data stack. Your responsibilities include:

• Monitoring existing data infrastructure (historical processing, daily data updates, and live feeds).
• Debugging and improving data infrastructure when required.
• Responding to user reports of data issues, patching data.
• Working with third-party vendors to source data for gaps.
• Onboarding new data sources to give our community more content for strategies.

• Strong proficiency in C#, Linux, Dot Net, OOP coding, and Python scripting.
• Experience with enumerable, streaming code design, efficiently working with terabytes of data.
• Comfortable with the high-stakes, on-call nature of data engineering.
• Meticulous attention to detail to quickly scan and identify issues with data.

• Clones our repository (LEAN); builds it successfully; runs the unit tests, attaches the test results to the job application. One-click applications, AI applications, and applications without this test data will be ignored.