Principal Software Engineer
Job in
Stevenage, Hertfordshire, SG1, England, UK
Listed on 2026-01-02
Listing for:
Eurochange
Full Time
position Listed on 2026-01-02
Job specializations:
-
IT/Tech
Job Description & How to Apply Below
Hours:
40h p/w
Location:
Hybrid or Remote
Salary:60k-70k
Build the platforms that power better travel money
At eurochange, we’re transforming foreign exchange — making it better, simpler and more convenient for millions of customers. Technology is at the heart of that journey, and we’re looking for a Principal Software Engineer to help shape the platforms that drive our digital future.
This is a senior, hands-on technical leadership role where you’ll influence architecture, guide engineering standards, and deliver enterprise-grade solutions that scale with our ambitions.
What you’ll be doing
As our Principal Software Engineer, you’ll be a technical authority across our digital platforms, combining architectural vision with practical delivery. You’ll:
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 Dev Ops, 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
About you
You’re a strategic, hands-on technical leader who enjoys solving complex problems and influencing direction. You’re trusted for your judgement, calm under pressure, and passionate about building systems that last.
You’ll bring:
Expert-level experience with C#, .NET and object-oriented design
Strong front-end knowledge using JavaScript/Type Script and React
Deep experience designing and governing enterprise APIs (REST & SOAP), ideally on Azure
Proven leadership in Dev Ops, 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
Our Perks Are Out of This World!
Colleague Rate on Travel Money
28 days holiday (inclusive of bank holidays)
High Street Discounts
Free 24/7 Virtual GP service for you and your family
Cycle to Work Scheme
Employee Wellbeing & Financial Support through Retail Trust
Employee Assistance Programme – because you matter!
Wagestream – access your earned wages when you need it
Recognition Awards for outstanding service
Additional holiday entitlement after 1 year
Life Assurance
…and much more!
Our Vision
To be the UK’s go-to travel money provider, adding value to every customer’s journey!
Our Purpose
Foreign exchange… but better, simpler & more convenient, we’re the trusted inspirational experts.
Our Values
We Strive, We Trust, We’re Aspirational, We’re Responsible, We’re Sincere
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