Senior Python Engineer London, Hybrid

Senior Python Engineer London, Hybrid

Join a leading global investment manager that's serious about modern engineering and data-driven investing.

Our client is looking for an experienced Senior / Principal Python Developer to help build high-performance systems that power investment decisions, analytics, and portfolio operations.

The Opportunity

Be part of a cross-functional engineering team working closely with quants, data scientists and portfolio managers to design, build and optimise analytical tools, data platforms and trading applications. This is a highly technical role with scope to influence architecture, mentor engineers and raise the bar on engineering standards.

London, Hybrid working

Competitive Salary + Bonus, benefits

Permanent Role

What You'll Do

• Design, develop and maintain scalable Python applications supporting investment and analytics workflows.
• Translate complex financial requirements into elegant, maintainable code in partnership with business and quant teams.
• Lead on performance tuning, code quality, testing, and CI/CD practices.
• Improve latency, reliability and observability of data-driven processes.
• Contribute to modernising legacy systems towards cloud-native, distributed architectures.

What We're Looking For

• Strong expertise in Python (typically 6+ years) building production-grade software in financial services, trading or data-intensive domains.
• Solid grasp of data structures, algorithms and software design.
• Experience with cloud platforms (AWS/Azure), distributed data platforms or data warehouses.
• Familiarity with quantitative analysis, risk models or front-office systems is advantageous.
• Proven track record of leading projects or mentoring engineers.
• A pragmatic, test-first mindset and great collaboration skills.

Why Join

• Work for a respected global investment firm investing in technology and modern engineering practices.
• Hybrid working (London-based; typically 2-3 days in office).
• Competitive salary, performance-based bonus and strong benefits.
• Inclusive, learning-focused culture where you can have real impact on investment systems.

If you're a hands-on Python engineer who enjoys solving hard problems and wants to build systems that directly influence investment outcomes, then apply directly to this advert with your updated CV.