Lead Software Engineer

**Lead Software Engineer \| Python \| £90k\-£100k \+ 10\-30% Bonus \| London** **£90,000\-£100,000 base \+ 10\-30% performance bonus** **Bonus paid every 4 months** **London \| 3 days per week in the office** **Python \| Django \| Flask \| APIs \| Data Pipelines** I'm working with a growing financial technology business that's built its own proprietary platform, to help investors, originators and asset owners manage complex private credit and asset\-backed finance portfolios. They're now looking for a **Lead Software Engineer** to join the team and play a key role in the continued evolution of the platform. And the package is a genuine differentiator: **£90k\-£100k base \+ a performance bonus that typically averages between 10\-30%, paid every four months.** The Opportunity This company has recently won a number of new clients, with a significant increase in projects coming onto the their platform. That means you're joining at a point where **platform scale, engineering capacity and technical direction are becoming increasingly important** . The role remains hands\-on. You'll be writing software and working across the core platform, while also acting as a technical reference point for the wider engineering team. What You'll Be Doing * Designing and building core backend services, APIs, data pipelines and calculation engines * Contributing to the architecture and technical direction of their platform * Improving the scalability, reliability and maintainability of the platform * Working closely with Product, Engineering and domain specialists to turn complex requirements into robust software * Helping establish engineering best practices around testing, code quality, observability and delivery * Mentoring other engineers and helping raise the technical bar across the team * Taking increasing ownership of key components and areas of the platform The Technical Environment **Python is at the heart of the platform** , with Django, Flask, APIs, data\-processing workflows and relational databases forming much of the day\-to\-day environment. They're particularly interested in engineers who can sit comfortably between **backend software engineering and data\-heavy systems** . Experience with **Airflow, orchestration, ETL or data processing** would be valuable, but they're not looking for a pure Data Engineer. The sweet spot is someone who considers themselves a **strong software engineer first** , with the ability to work comfortably with complex data and financial workflows. What They're Looking For * Strong commercial software engineering experience, ideally with **Python** * A strong backend engineering background * Experience building and owning APIs, services or data\-heavy applications * Good architectural and technical decision\-making * Experience mentoring or providing technical leadership to other engineers * Comfortable working in a growing environment where requirements aren't always fully defined * Someone who wants to remain hands\-on while having greater influence over technical direction Why Join? **£90k\-£100k base \+ 10\-30% performance bonus, paid every four months.** Alongside the compensation, you'll be joining a relatively small engineering function where your technical decisions can genuinely influence the direction of the platform. It's a good opportunity for someone who wants to stay **hands\-on technically** , while taking on more responsibility for architecture, engineering standards and the development of other engineers. If you're a senior/lead Python engineer looking for a role where you can stay hands\-on, influence architecture and have meaningful ownership over a growing platform, I'd be keen to speak. **Lead Software Engineer \| Python \| £90k\-£100k \+ 10\-30% Bonus \| London**