Staff Software Engineer (AI)

TL;DR

Staff Software Engineer (AI): Building and optimizing scalable financial product platforms with an accent on AI-enabled workflows, robust system architecture, and full-stack development. Focus on mentoring the engineering team, driving technical excellence, and solving complex challenges across infrastructure, APIs, and responsive front-end components.

Location: Hybrid role based in London, UK with a requirement for 2 days per week in the office.

Company

A fintech platform empowering consumers to make confident financial decisions through accessible, high-performance applications.

What you will do

• Solve complex business problems by building and maintaining robust, scalable software across the full stack.
• Integrate AI directly into business workflows, utilizing LLM agents, vector stores, and RAG to generate tangible value.
• Mentor and guide the engineering team, fostering a culture of technical excellence and continuous learning.
• Define best practices for software delivery, ensuring high-quality, maintainable code across all project stages.
• Collaborate cross-functionally with product managers, designers, and data analysts to maximize business impact.
• Identify and debug complex system issues while implementing architectural improvements for better performance.

Requirements

• Extensive professional experience ranging from building MVPs to managing large-scale production systems.
• Strong proficiency in TypeScript and deep knowledge of the Node ecosystem.
• Solid understanding of the React paradigm, including modern patterns and hooks.
• Proven experience developing AI-enabled applications using frameworks like N8N or Mastra.
• Familiarity with cloud-native applications, Kubernetes, and container orchestration.
• Must be based in or able to commute to London for hybrid office requirements.

Nice to have

• Experience with Bun, PostgreSQL, BigQuery, or Elasticsearch.
• Familiarity with CI/CD pipelines, specifically GitHub Actions and Argo workflows.
• Knowledge of architectural patterns like domain-driven design and message passing.
• Expertise in web security principles including CORS, XSS, and authentication techniques.

Culture & Benefits

• 10% discretionary annual bonus based on performance.
• Hybrid working policy with 2 in-office days per week and up to 22 days per year for remote work from anywhere.
• 25 days holiday, increasing to 30 days with tenure, plus 2 extra days for personal time.
• Comprehensive private medical and critical illness cover.
• Employer-matching pension contributions up to 7.5%.
• Learning and training budget to support professional growth.