Strat OS Developer | London, UK

Fourier Ltd; London; On-site; GBP 70,000 - 100,000; Full time

Job summary

A leading UK financial institution is seeking a highly skilled software engineer to join a specialist team focusing on building and scaling their strategic analytics platform. This role involves advanced SDLC tooling, distributed compute infrastructure management, and the opportunity to work with top-tier engineers in a technically challenging environment.

Benefits

Clear growth opportunities

Strong support and mentorship

Collaborate with an experienced engineering team

Work in a technology modernisation programme

Qualifications

• Strong academic background in a related field.
• Deep programming experience in Python, C++, Rust.
• Experience with financial systems or fixed income products a plus.

Responsibilities

• Contribute to the buildout and support of a next-generation in-house platform.
• Consult on architecture, optimisation, and software design.
• Shape internal best practices and technical standards.

Skills

Analytical skills

Problem solving

Communication

Team mindset

Programming in Python

Programming in C++

Programming in Rust

Networking knowledge

Education

Degree in computer science, physics, mathematics, engineering or related field

Tools

AWS

Linux

Unix

Windows

Job description

A leading UK financial institution is seeking a highly skilled and curious software engineer to join a specialist team building and scaling the firm’s strategic analytics and infrastructure platform. This role is part of a multi-year initiative to modernise the entire technology stack supporting pricing, analytics, market data, trade capture, and risk.

The successful candidate will be part of a core team responsible for designing, building and supporting the foundational systems used across the business. This is a rare opportunity to collaborate with top-tier engineers in an environment that values technical excellence, innovation, and deep domain knowledge.

Key Responsibilities:

- Contribute to the buildout and support of a next-generation in-house platform, including:
- Advanced SDLC tooling and developer workflows
- Distributed compute infrastructure in production
- Monitoring, debugging, profiling, and performance tooling
- Database setup and tuning across multiple technologies
- Partner with teams across the organisation to consult on architecture, optimisation, and software design
- Leverage and extend open-source and commercial tools to meet domain-specific needs
- Help shape internal best practices and technical standards

About You:

- Strong academic background in computer science, physics, mathematics, engineering or related field
- Passionate about building robust, scalable software with a track record of delivering technical solutions
- Deep programming experience in Python, C++, Rust or similar languages
- Strong analytical skills and a problem-solving mindset
- Comfortable working across infrastructure, backend systems, and tooling
- Excellent communication skills and team mindset – able to engage with both technical and non-technical colleagues

- Python and/or Rust development experience
- Cloud engineering exposure (e.g. AWS)
- Performance tuning and profiling
- Experience with Linux/Unix and Windows environments
- Familiarity with financial systems or fixed income products
- Open-source contributions or deep involvement in engineering communities
- Networking knowledge

Why Join?

- Be part of a team that directly influences the technical direction of a highly specialised financial business
- Gain exposure to an ambitious technology modernisation programme at scale
- Collaborate with one of the most experienced engineering teams in the industry
- Work in a culture that prioritises quality, impact, and long-term thinking
- Enjoy clear growth opportunities, strong support, and a technically challenging environment

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