Core Technology Software Developer in London

iSAM is an innovative financial technology firm specialising in quantitative trading, comprised of iSAM Funds and iSAM Securities. iSAM Securities, regulated by the FCA, SFC, and CIMA, is a leading algorithmic trading firm and trusted electronic market maker, providing liquidity, technology, and prime services to institutional clients and trading venues globally. The firm offers full-service prime brokerage and execution via its cutting-edge proprietary technology, as well as market-leading analytics, cleared through the group’s bank Prime Brokers. iSAM Funds is an alternative asset manager specialising in systematic investing. Each strategy is unique, provides a specialist quantitative approach, and is designed to deliver highly diversifying absolute returns for institutional portfolios.

The Role: Join our dynamic Core Technology team as a Software Developer, where you'll play a crucial role in building and enhancing the software that drives both our Asset Management and Securities businesses. You’ll work closely with Operations, Treasury, Risk, Compliance, Finance, and Client Services—embedded alongside these teams to deeply understand their challenges and anticipate their needs. You’ll also collaborate with trading teams to ensure new strategies and markets are fully supported. Our mission is to deliver innovative, high-impact technology solutions that streamline processes, enhance decision making, and drive efficiency across the business. We also own the firm’s AI roadmap, integrating frontier models and capabilities where they deliver real value.

This is a hands-on, full-stack role working with Java and Python, where you'll design and develop cutting-edge solutions while also empowering analysts to elevate their data science and development capabilities. You’ll collaborate with a supportive team while taking ownership of projects—from initial scoping and architecture to development and deployment—solving complex problems and driving meaningful change. If you're passionate about technology, thrive in a fast-paced, collaborative environment, and want to build software that makes a real difference, we'd love to hear from you!

Requirements:

• Strong software development skills with expertise in Java, capable of writing high-quality, well-structured, well-tested code.
• A keen interest in financial markets and the trading lifecycle, with a proactive approach to learning new concepts.
• Excellent communication skills (both written and verbal), with the ability to collaborate effectively across technical and non-technical teams.

Preferred:

• Experience with Python, C#.
• Hands-on experience working with relational databases, including schema design, query optimization, and performance tuning.
• Familiarity with data science principles and methodologies, with experience applying them in real-world scenarios.
• Experience with our core stack, including Hibernate, PostgreSQL, Maven, Guice, NumPy, and Pandas.
• Exposure to financial markets, either through formal education or professional experience.