Lead Software Engineer (Fintech)

TL;DR

Lead Software Engineer (Fintech): Designing and operating highly available, multi-region infrastructure services for a fast-growing platform with an accent on resilience patterns, observability, and SLO management. Focus on driving cloud-native and GitOps standards, refactoring large-scale systems, and mentoring senior engineers within an engineering-led environment.

Location: Must be based in London, UK, with 4 days onsite in Paddington

Salary: £110,000–£140,000

Company

A fast-growing UK-based fintech scale-up prioritizing reliability and technical excellence.

What you will do

• Architect and implement highly available, multi-region infrastructure services.
• Define and implement resilience patterns like failover and circuit breaking.
• Lead large-scale refactoring and reliability improvement initiatives.
• Establish best practices for incident response, observability, and SLO management.
• Drive the adoption of modern cloud-native and GitOps practices.
• Mentor senior engineers and influence engineering culture at scale.

Requirements

• Strong backend engineering proficiency in Go, Java, or .NET.
• Extensive hands-on experience designing and operating high-scale distributed systems.
• Deep expertise in cloud-native architecture (GCP or AWS).
• Advanced knowledge of Kubernetes and container orchestration.
• Proven track record of technical leadership and mentoring.
• Must be able to work 4 days per week onsite in London (Paddington).

Culture & Benefits

• Work in an engineering-led organization where technical excellence drives business success.
• Opportunity to influence architecture across a multi-country product.
• Balanced role allowing for deep technical implementation alongside leadership responsibilities.