Senior Python Software Engineer

Working Pattern: 5 days a week in the office

We're partnering with a leading proprietary trading firm that is making multiple senior engineering hires as part of a significant greenfield technology programme.

This is an opportunity to join a highly collaborative engineering team where you'll design, build and own business-critical applications used directly by front-office trading teams. You'll work closely with traders from day one, helping shape solutions that have a tangible impact on the business.

This role is ideal for experienced engineers who enjoy taking ownership, influencing technical direction and building software from the ground up.

What you'll be doing

• Designing and developing scalable Python applications for front-office users.
• Owning projects from architecture through to production and ongoing enhancement.
• Partnering directly with traders and business stakeholders to understand problems and deliver innovative solutions.
• Driving engineering best practices, code quality and technical decision-making.
• Mentoring engineers and contributing to the continued growth of a high-performing team.

What we're looking for

• Proven experience designing and delivering complex software solutions.
• Strong understanding of software architecture and engineering best practices.
• Confident working directly with business stakeholders in a fast-paced environment.
• A proactive, ownership-driven mindset with the ability to solve complex technical challenges.

Previous trading or financial markets experience is advantageous but not essential. We're keen to speak with exceptional engineers from technology-led organisations who are excited by the challenge of applying their skills in a front-office trading environment.

What's on offer

• A genuine greenfield engineering programme with significant technical ownership.
• Direct collaboration with front-office trading teams.
• The opportunity to influence architecture and technical direction.
• A high-performing, engineering-led culture that values innovation and autonomy.
• Excellent salary, bonus and long-term career progression.

If you're looking for an environment where you'll solve challenging technical problems, work alongside exceptional engineers and see the direct impact of your work every day, we'd love to hear from you.