Software Engineer - London

Salary: £69,000 - 109,000 per year

Requirements:

• Strong engineering instincts and a deep understanding of computer science fundamentals
• Experience writing software in C++, C, C# and/or Python
• Innovative, big-picture thinking grounded in real-world pragmatism
• Desire to continuously improve in a rapidly evolving environment
• Readiness to set technical direction, promote engineering principles, and do the right things

Responsibilities:

• Establish vision and technical direction for major initiatives across our reference data platform
• Expand and harden existing reference data products, improving coverage across asset classes and datasets, raising data quality, and increasing operational robustness
• Design, develop, support, and maintain critical components of our data infrastructure that traders and researchers rely on every day
• Ensure new and existing programs adhere to our coding, architectural, and operational standards
• Develop a deep understanding of trading, exchanges, and the diverse data domains that underpin them
• Collaborate deeply with traders, engineers, and researchers to identify gaps, prioritise improvements, and deliver datasets that meet the bar of a top-tier trading firm

Technologies:

• C#
• Support
• Python

More:

At Optiver, our mission is to constantly improve the market by injecting liquidity, providing accurate pricing, increasing transparency, and acting as a stabilizing force no matter the market conditions. We focus on continuous improvement and help safeguard healthy and efficient markets for everyone who participates. As one of the largest market making institutions, we are a trusted partner of 70+ exchanges across the globe. Youll join a culture of collaboration and excellence, surrounded by curious thinkers and creative problem solvers in a supportive, high-performing environment. We offer a performance-based bonus structure, 27 paid vacation days plus all UK public holidays, daily breakfast and lunch, support on commuting expenses, private medical insurance, a pension scheme, ClassPass fitness membership, training and continuous learning opportunities, and international transfer opportunities for global career growth.

last updated 36 week of 2026