Senior Backend Software Engineer | Financial Services | London, Hybrid
Our client is a high-growth, well-backed fintech that is scaling rapidly and looking to add experienced Senior Backend Software Engineers to the their engineerin team.
This is a strong opportunity for someone who enjoys building high-scale backend systems, working on public-facing APIs, and solving complex engineering challenges in a fast-moving environment.
You’d be joining a business operating at meaningful scale, with a modern engineering culture centred around continuous delivery, cloud-native architecture, automation, and rapid iteration.
If you are comfortable with abiguity, enjoy ownership, and like building products taht operate at real scale, then this role would be ideal for you.
London City, hybrid working with flex
Competitive Salary + Share Options + Benefits
What you’ll be doing:
* Designing and evolving backend APIs and core platform infrastructure
* Building scalable, resilient distributed systems in a cloud environment
* Working closely with product and UX teams on discovery and technical problem-solving
* Contributing to architecture decisions and engineering best practice
* Supporting performance, stability, scalability, and code quality improvements
* Mentoring others and contributing to a strong engineering culture
Experienced and Skills Needed for this role:
* Around 8+ years’ software engineering experience
* Experience building and supporting public-facing REST APIs
* Cloud infrastructure experience, ideally with AWS
* Exposure to Infrastructure as Code, ideally Terraform
* Good understanding of distributed systems, scalability, security, and performance
* Experience in one of the following environments:
* Payments / fintech / financial services
* High-volume transaction environments such as betting, gaming, or streaming
Nice to have:
* NestJS
* Experience in fast-paced start-up or scale-up environments
If you are interested in this role, please respond directly to this advert with an updated CV or email it to chantelle.smith@sourcegroupinternational.com
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