Senior Backend Engineer

Join a cutting-edge fintech leader, on a mission to revolutionise financial operations using AI.

Their flagship product is an AI Bookkeeper designed to support accountants and bookkeepers by automating key tasks such as reconciliation and compliance checks, allowing businesses to focus on high-level strategy and validation.

This position will focus on building robust backend solutions that power their AI-driven financial products, with a particular emphasis on integrations with third-party accounting platforms such as Xero, Sage, and QuickBooks.

Key Responsibilities

• Architect and Develop Core Backend Systems: Design, implement, and maintain scalable backend systems and APIs.
• Integration with Third-Party Platforms: Build and optimise integrations with platforms like Xero, QuickBooks, and Sage.
• Database and Data Management: Design and manage data storage solutions to ensure performance, reliability, and security.
• API Development and Optimization: Develop RESTful APIs and microservices to support product features and integrations.
• Collaborate with Cross-Functional Teams: Work with frontend, product, and AI teams to deliver cohesive solutions.
• Maintain Code Quality and Standards: Conduct code reviews and follow best practices for maintainability and security.
• Continuous Improvement: Keep up with emerging technologies and bring innovative ideas to the backend systems.

Qualifications

• 5+ years of experience in backend development, ideally in a fintech, SaaS, or data-intensive environment.
• Proficiency in backend programming languages such as Python, and familiarity with TypeScript and React.
• Experience integrating with 3rd party APIs using OAuth and Python libraries.
• Expertise in RESTful API and microservices architecture.
• Experience with cloud platforms (ideally AWS) and containerization (Docker, ECS/Fargate).
• Strong understanding of relational and NoSQL databases, including schema design and optimization.
• Familiarity with CI/CD tools like Jenkins, GitHub Actions, or CircleCI.
• Good grasp of OWASP principles and secure development practices.

Preferred Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field.
• Experience with accounting platform integrations (Xero, QuickBooks, Sage).
• Familiarity with financial data handling and compliance.
• Experience with high-availability performance optimisation.
• Contributions to open-source projects or developer community involvement.

Perks and Benefits

• Early-stage opportunity with influence on future growth.
• Company events and innovation sharing sessions.
• Continuous internal and external development opportunities.
• Flexible hybrid working model (London-based).
• Enhanced pension scheme.
• Family health insurance.
• Cycle to work and tech schemes.
• 25 days holiday plus bank holidays and year-end closure.
• Performance-based bonuses.
• Competitive compensation package.