Senior C# Backend Architect — Core Banking (Hybrid UK)

Zopa Bank; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Flexible working arrangements

Work from abroad for up to 120 days a year

Focus on work-life balance

Job summary

A leading fintech company in Greater London is seeking a senior engineer to design and develop systems for core banking products. You will influence technical direction, mentor engineers, and own complex projects from idea to outcome. This hybrid role allows flexibility, requiring office presence 2-3 days per week and offers remote work options. Ideal candidates will have strong experience in C# and cloud technologies, alongside a customer-focused mindset.

Qualifications

• Track record of delivering high-impact systems in production environments.
• Strong systems thinking and architectural judgement.
• Experience mentoring others and impacting team success.

Responsibilities

• Design and evolve services for core banking products.
• Own complex initiatives end to end.
• Make architectural decisions balancing delivery with sustainability.

Skills

C#

Kafka

Kubernetes

Docker

AWS Aurora Postgres

Test-Driven Development (TDD)

Job description

A leading fintech company in Greater London is seeking a senior engineer to design and develop systems for core banking products. You will influence technical direction, mentor engineers, and own complex projects from idea to outcome. This hybrid role allows flexibility, requiring office presence 2-3 days per week and offers remote work options. Ideal candidates will have strong experience in C# and cloud technologies, alongside a customer-focused mindset.