Principal Software Engineer

Salary: £60,000 - 70,000 per year

Requirements

• Expert-level experience with C#, .NET and object-oriented design
• Strong front-end knowledge using JavaScript/TypeScript and React
• Deep experience designing and governing enterprise APIs (REST & SOAP), ideally on Azure
• Proven leadership in DevOps, CI/CD pipelines and cloud-native environments
• Advanced SQL Server and data modelling expertise
• Strong understanding of microservices and distributed systems
• Experience with CMS platforms (e.g. Umbraco) and third-party integrations
• A collaborative mindset and the ability to influence without line management

Responsibilities

• Lead end-to-end full-stack delivery, from backend services and APIs to customer-facing and internal applications
• Shape and evolve platform and system architecture, ensuring solutions are secure, scalable and future-ready
• Translate business strategy into robust technical designs, balancing innovation with resilience
• Set the standard for clean code, engineering best practice and quality across teams
• Drive modernisation initiatives, reducing technical debt and improving performance
• Champion DevOps, CI/CD and automation, enabling faster, safer releases
• Embed security, compliance and GDPR-by-design into everything we build
• Collaborate closely with Product, Design, Architecture and senior stakeholders
• Mentor and influence engineers at all levels, raising the bar for technical excellence

Technologies

• Azure
• Backend
• C#
• CI/CD
• Cloud
• CMS
• DevOps
• Support
• JavaScript
• REST
• React
• SOAP
• SQL
• Security
• TypeScript
• Umbraco
• microservices
• ASP.NET

More

At eurochange, we are transforming foreign exchange to make it better, simpler, and more convenient for millions of customers. Technology is at the heart of our journey. We are looking for a Principal Software Engineer to help shape our digital platforms. This senior, hands-on technical leadership role offers a hybrid or remote working option, a salary range of 60k-70k, and numerous perks including 28 days holiday, high street discounts, and wellness support. Join us in being the UKs go-to travel money provider!

last updated 13 week of 2026