Senior Software Engineer (Full-Stack), Strategy Platform

AnaVation LLC; City of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading technology firm in London is looking for a Full-Stack Software Engineer to enhance critical trading systems and develop web applications. The role requires strong skills in Python and JavaScript/TypeScript. Ideally, candidates should have experience with APIs and modern frontend frameworks. This hybrid position allows collaboration with diverse teams to deliver robust engineering solutions.

Qualifications

• 3+ years of software engineering experience building production systems.
• Experience with APIs and async/concurrent systems.
• Familiarity with the Bazel build system.

Responsibilities

• Own end‑to‑end delivery of internal web applications.
• Establish best practices for frontend and web tooling.
• Collaborate with researchers, traders, and operations staff.

Skills

Programming skills in Python

Proficiency with JavaScript/TypeScript

Strong problem-solving skills

Excellent communication skills

Education

Computer Science degree or equivalent experience

Tools

Docker

Kubernetes

Job description

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.

Friends of Voleon Candidate Referral Program

If you have a great candidate in mind for this role and would like to have the potential to earn $15,000 if your referred candidate is successfully hired and employed by The Voleon Group, please use this form to submit your referral. For more details regarding eligibility, terms and conditions please review the Voleon Referral Bonus Program.

Equal Opportunity Employer

The Voleon Group is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.