Principal Software Engineer Python AI - FinTech

In this Principal role you will lead Python-based engineering work with technical ownership, shaping architecture and delivering new product capabilities in a FinTech setting. You’ll work across backend, data processing and complex financial systems, while advancing AI and LLM initiatives. The position combines hands-on development with strategic influence to drive product outcomes. You’ll collaborate with cross-functional teams to scale solutions and adopt modern engineering practices. This is a high-impact, product-focused role in a flexible hybrid environment.

• Salary up to 120k
• Healthcare
• Pension
• Hybrid working
• Impactful role with development opportunities

• lead end-to-end projects from concept to production
• shape and own software architecture for new product capabilities
• develop backend services using Python with Django or FastAPI
• work across backend, data processing and financial systems
• drive AI/LLM adoption and practical integration into products and workflows
• balance new development with improvement of existing systems

• strong Python backend experience with Django or FastAPI
• senior or principal level software engineering background
• ability to lead design and delivery of software products
• experience applying AI/LLMs to products and workflows
• ability to influence engineering decisions and shape architecture
• product-focused mindset; balance of new and existing systems
• FinTech, financial services or investment tech experience advantageous

• leadership and initiative
• cross-functional collaboration
• clear communication
• Python
• Django
• FastAPI