Senior Core Developer (GUI)

London | Hybrid | Trading Technology

A leading digital asset trading firm is looking for a Senior Core Developer to join its London team, with a focus on building and improving trading GUIs used directly by traders.

This is a hands-on role in a small, high-impact team, working closely with traders and engineers across the business.

What you’ll be doing:

• Build and enhance trading GUIs used for day-to-day trading activity
• Work closely with traders to improve usability and performance
• Develop systems to capture and visualise trading data across multiple exchanges
• Contribute to real-time reconciliation, reporting, and internal tooling
• Help build out systems used by quants for data and ML workflows

What we’re looking for:

• Strong Python experience (Python 3)
• Experience building desktop GUI applications (Qt preferred)
• Solid SQL/database knowledge
• Comfortable working in Linux environments
• Interest in trading, crypto, or financial systems

Why join:

• Work directly with traders on tools they rely on every day
• High ownership and fast feedback in a small team
• Exposure to both trading systems and data/ML infrastructure
• Strong compensation and a collaborative, non-hierarchical culture

If you’re interested in building real-world trading tools in a fast-moving environment, feel free to apply or reach out.