Senior Software Engineer (London)

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Product Engineer (Backend) - NodeJS OR Rust perm - paying up to 95k Hybrid (London - 2x a week)

We're a fast-growing team building cutting-edge security infrastructure for the worlds most data-sensitive industries. Our mission is to make top-tier data protection effortless for developers, from early-stage startups to large fintech and healthcare organisations.

We're hiring product-minded engineers who want to work at the intersection of deep systems engineering and delightful developer experience.

What You'll Work On:

• Developer tools for multi-PSP payment orchestration
• Generative AI for automating compliance workflows
• Custom serverless runtimes in Python and Node.js
• Confidential computing infrastructure
• High-throughput proxies and network-level systems
• Feature discovery, product shaping, and developer experience

What We're Looking For:

• 5+ years of professional software engineering experience
• Strong background in distributed systems (payments experience is a bonus)
• Experience with Rust , Node.js , and AWS preferred
• Passion for building tools and APIs that developers love
• High code quality, strong communication, and collaborative mindset
• Interest in low-level engineering and scalable, secure systems

What You'll Get:

• Equity with a generous exercise window
• Hybrid working: 2 days/week in our London office
• Catered lunches
• Generous vacation policy
• Autonomy, ownership, and a strong engineering culture

Join us if you're excited to build developer-first infrastructure that has real impact.

• Seniority level
  Mid-Senior level

• Employment type
  Full-time

• Job function
  Engineering, Information Technology, and Other
• Industries
  Data Infrastructure and Analytics, Financial Services, and Computer and Network Security

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