Senior Software Engineer, Strategy Platform

Voleon is a technology company that applies state-of-the-art AI and machine learning techniques to real-world problems in finance. For nearly two decades, we have led our industry and worked at the frontier of applying AI/ML to investment management. We have become a multibillion-dollar asset manager, and we have ambitious goals for the future. Your colleagues will include internationally recognized experts in artificial intelligence and machine learning research as well as highly experienced finance and technology professionals. The people who shape our company come from other backgrounds, including concert music performances, humanitarian aid, opera singing, sports writing, and BMX racing. You will be part of a team that loves to succeed together. In addition to our enriching and collegial working environment, we offer highly competitive compensation and benefits packages, technology talks by our experts, a beautiful modern office, daily catered lunches, and more.

The Role

As a Full‑Stack Software Engineer on our Strategy Platform Engineering team, you will build and evolve the trading systems and the tooling that enable our strategies to scale. You’ll join a specialised group within Securities Engineering with a dual mandate: advancing core systems, such as trading infrastructure and large‑scale data pipelines, as well as delivering the web applications that put those capabilities in the hands of traders, production operations, and researchers. Your team owns the end‑to‑end delivery of internal web interfaces that power trader monitoring of our strategies and give production operations clear visibility into our machine‑learning pipelines and live trading system health. You will also improve the ergonomics of common developer workflows used to build trading strategies. This is an opportunity to work on mission‑critical systems while also shaping how traders, operations, and research teams interact with them day to day. Engineers in this group are expected to work across the stack, contributing to frontend applications, trading infrastructure, and data and research pipelines. The role also offers the chance to evolve frontend and workflow tooling for the entire company, setting the standard for how web applications and internal tools are built at Voleon. This is a hybrid role based in our London, UK office.

Responsibilities

• Own end‑to‑end delivery of internal web applications that power trader monitoring, production‑ops visibility, and research workflows.
• Establish and promote best practices for frontend and web tooling, providing shared frameworks that improve usability and consistency.
• Contribute to the team’s existing areas of responsibility, including integration with new assets and markets, profiling and optimisation of distributed systems, and improving trading system resilience.
• Collaborate closely with researchers, traders, and operations staff to translate complex requirements into reliable engineering solutions.
• Own the reliability of what you ship, participating in incident reviews and driving preventive improvements across the stack.

Requirements

• Computer Science degree or equivalent experience.
• 3+ years of software engineering experience building production systems.
• Strong programming skills in Python.
• Proficiency with JavaScript/TypeScript and at least one modern frontend framework (React, Vue, etc.).
• Experience with APIs and async/concurrent systems.
• Strong problem‑solving skills, with attention to performance and reliability.
• Excellent communication skills and ability to work across diverse technical domains.

Preferred Qualifications

• Prior experience developing or maintaining internal tooling, particularly for observability, monitoring, or analytics.
• Exposure to fast‑moving environments and building internal web tooling from the ground up.
• Experience with containerisation and orchestration technologies (e.g., Docker, Kubernetes).
• Familiarity with the Bazel build system.