Python Developer up £170,000 + Bonus

About the Job

Title: Python Developer – Backend & Data Platforms

Client: Boutique Fintech

Salary: Up to £170,000 base + Bonus

Location: London

About the Client

We are partnering with an ambitious, technology-driven boutique financial firm where some of the world’s best engineers and developers build cutting-edge technology for complex financial markets.

Joining a small, collaborative engineering team, you will work with massive datasets and sophisticated platforms, tackling demanding technical challenges alongside people you can learn from every day. Technology sits at the heart of the business, with developers directly contributing to its success.

This is an opportunity to deepen your Python expertise, contribute ideas and help build the next generation of financial technology. For a developer looking to grow and excel, it offers the close collaboration of a boutique firm with the technical ambition to make a significant impact.

The Role

We are looking for a Python Developer to join a talented team building the applications, backend services and data platforms powering the business.

You will work on technically challenging projects involving large-scale data processing, complex integrations and production systems where speed, accuracy and reliability matter. Working closely with fellow developers and financial specialists, you will contribute to new development and help push existing platforms further.

This is a hands-on coding role for someone who enjoys solving difficult problems, sharing ideas and developing their skills alongside some of the world’s best engineers.

Key Responsibilities

• Develop sophisticated Python applications and backend services supporting core business activities
• Build scalable pipelines to ingest, validate, transform and distribute large, complex datasets
• Create APIs and integrations connecting critical platforms
• Improve performance across Python applications, SQL queries and databases
• Collaborate with developers and financial specialists to turn complex requirements into practical solutions
• Contribute throughout the development lifecycle, from design and coding to testing, deployment and production support
• Strengthen automated testing, monitoring and data quality controls
• Share ideas through code reviews, technical discussions and collaborative problem-solving

Skills & Experience

• 4+ years of professional software development experience
• Strong production-level Python development skills
• Experience within fintech, banking, investment management or comparable financial services
• Experience developing backend applications, financial systems or data platforms
• Strong SQL skills and confidence handling large, complex datasets
• Solid foundations in algorithms, data structures and software design
• Experience delivering reliable, well-tested production systems
• Strong academic background in Computer Science or a related technical discipline
• A collaborative approach, technical curiosity and the ambition to keep improving as a developer

Nice to Have (Not Required)

• Experience within quantitative finance or financial analytics
• Experience building data pipelines or distributed backend services
• Familiarity with pandas, NumPy and financial data processing
• Understanding of financial instruments and transaction workflows
• Exposure to messaging systems or event-driven architectures
• Experience with CI/CD, Linux and production monitoring

Benefits

Proposed wording below; confirm availability before publishing.

• Base salary up to £170,000 plus performance-related bonus
• Comprehensive health and wellness package, including mental health support
• Learning and development budget for courses, certifications and conferences
• Technology allowance for your home setup
• Dedicated innovation days to explore new technologies and ideas
• Gym access and wellbeing initiatives
• Additional paid days to pursue personal interests
• Flexible working options within a collaborative engineering environment