9fin

Senior Product Engineer

London. Posted 3 months ago

The role

You will lead projects by designing systems, building proof of concepts, and delivering service functionality including APIs and data processing. You will work on backend services and web application tools within a cross-functional team.

What you will do

  • Lead projects by defining and designing systems
  • Build proof of concepts
  • Deliver new service functionality including APIs, data processing and automation
  • Develop backend services and web application hosted tools and systems
  • Run code reviews and mentor other developers
  • Provide input for new features and products through research and experimentation
  • Improve the codebase through automation, refactoring and documentation
  • Own features from idea through design, implementation, deployment and iteration

Required qualifications

  • Experience operating as a Senior IC Engineer
  • Experience leading systems design and infrastructure discussions
  • Experience mentoring more junior team members
  • Experience scoping work within cross-functional product teams
  • Comfortable moving between frontend and backend work
  • Strong knowledge of modern JavaScript/TypeScript and frameworks such as React
  • Experience building scalable backend services and APIs
  • Comfortable leveraging modern AI-assisted development tools
  • Strong product mindset with an eye for user experience
  • Strong system design and problem-solving skills

Benefits

  • Competitive Salary
  • Equity options
  • Pension (minimum contributions are 4% with 9fin matching up to 7%)
  • Private Medical Insurance
  • Paid sick leave with Income Protection for long periods of illness
  • Group Life Assurance
  • Season Ticket Loan
  • Cycle to Work schemes
  • 25 holiday days per year
  • Local public holidays with ability to exchange them for alternative days
  • Work abroad for up to 3 months a year
  • 1 month paid sabbatical after 5 years of service

About the company

9fin is the AI platform powering global debt markets. It replaces fragmented infrastructure with a single platform that centralises proprietary credit data, deep analysis, and high-value workflows.