Senior Software Engineer - FinTech Integrations in London

Join us in redefining the creator economy with AIFanvue, the fastest-growing creator monetisation platform. We are the leading AI-powered creator-first platform, designed to empower creators worldwide to directly monetise their audience. We are on a mission to redefine the creator economy by empowering creators to connect, share, and earn more efficiently.

At Fanvue, we don’t see financial integrations as just plumbing - we see it as core to the product experience and a growth engine for creators. Every checkout flow, every payout experience, every fraud or financial tool we build is central to delivering trust, speed, and scale for our global community. This role has a fundamental impact on how the business will scale, managing millions of transactions in and out.

The Role

As we continue to scale aggressively, we’re looking for a world-class Senior Software Engineer - FinTech Integrations to own and drive our checkout and payouts product stream, handling well over $100m+ per year. This is a hands-on role for someone who thrives on building complex systems, pushing technical boundaries, and shaping the financial backbone of a high-growth platform. As the platform continues to scale, this role is for someone who’s ambitious to scale their knowledge and experience accordingly, progressing significantly as a Principal IC or in Management.

What You’ll Do

• Architecting Scalable Financial Systems: Leading the strategic design and implementation of robust financial integrations, aligning with the company’s vision of innovation and operational excellence.
• Own the Checkout & Payout Experience: Build and deliver frictionless, secure, and high-converting payment and payout flows that scale globally.
• Build & Evolve Financial Tooling: Design and implement fraud prevention systems, reconciliation tools, reporting dashboards, and internal admin experiences that directly influence how payments work across Fanvue.
• Scale Integrations with Third Parties: Lead the adoption and optimisation of financial APIs, alternative payment methods (APMs), and payout providers, ensuring resilience, auditability, and user trust.
• Developer Experience Leadership: Constantly improve the developer experience of the codebase, ensuring that financial systems are maintainable, testable, and scalable.
• Cross-Functional Collaboration: Partner with product, design, compliance, legal, and operations to align financial systems with business priorities and regulatory requirements.
• Quality & Velocity: Deliver high-quality, tested, and reliable systems at the speed of Fanvue’s growth.

Who You Are

Must-haves:

• Technical Excellence: Expert knowledge in TypeScript, React, Node.js, and strong SQL or Postgres skills.
• Payments Domain Expertise: You’ve built or scaled high-volume payment and payout systems (hundreds of thousands to millions of transactions, ideally across multiple geographies).
• System Thinker: You’re comfortable designing and operating in highly complex, interdependent systems with financial, compliance, and user experience constraints.
• Hands-On Engineer: A senior IC who thrives on writing code, solving technical challenges, and pushing systems forward, delivering low-latency, fault-tolerant checkout flows with resilient retry, fallback, and routing logic.
• Collaborator & Communicator: Skilled at managing stakeholders (internal and external), explaining trade-offs clearly, and working cross-functionally with transparency.
• High-Quality at High-Speed: You move fast without compromising on quality, rigor, or security.
• Passion and High Agency: A passion for payment systems and their application to live high velocity systems with high agency to take projects end to end.

Nice to have:

• Marketplace/Platform Context (ideal): Prior experience in a marketplace, creator economy platform, or fintech environment where payments and payouts are core to growth and trust.

Why Join Fanvue?

• Shape the financial backbone of the fastest-growing creator monetisation platform.
• Competitive salary, equity, and benefits package.
• Work in a stream that directly impacts trust, conversion, and revenue at a global scale.
• Join a talented, mission-driven team dedicated to empowering creators worldwide.
• A culture that values innovation, ownership, transparency, and speed.

Benefits: Unlimited holiday, hybrid/remote flexibility, budget for growth & wellbeing, flexible working hours, and recognition as one of The Sunday Times Best Places to Work 2025.