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Principal Back End Developer (.NET

Job in City, Vale of Glamorgan, Wales, UK
Listing for: The Portfolio Group
Full Time position
Listed on 2026-01-13
Job specializations:
  • Software Development
    Software Engineer, DevOps
Salary/Wage Range or Industry Benchmark: 65000 - 75000 GBP Yearly GBP 65000.00 75000.00 YEAR
Job Description & How to Apply Below
Position: Principal Back End Developer (.NET)
Location: City

Portfolio are proud to be exclusively representing an award-wining, Software provider based in the heart of Manchester, providing people solutions to over 100,000 clients worldwide.

You will be joining a cross functional engineering team with a huge appetite to grow. They follow truly agile methodologies that have their people at the very center of our ethos. This role is unique, as the successful candidate will be a part of the founding members of the department who will help fostering and growing a positive culture - you will doubtless have ambitions to grow and expand with the business.

Principal Backend Developer role requires extensive experience of delivering SaaS products in a fast-paced dynamic environment. They're looking for a visionary technology leader who's eager to work in a collaborative environment, driving innovation, setting technical direction and ensuring quality in our services and component libraries.

Their core technical skills are expert of C# (.NET 6+ preferred), expert in SQL Server extensive experience in test Driven Development (NUnit preferred), advanced version control using Git, highly proficient in creating and maintaining RESTful & Graph

QL APIs, ORMs (Entity Framework preferred), follows SOLID & OOP principles.

What you bring to the team
  • At least 10 years' Backend Development experience
  • Visionary and strategic engineer with a love for technology
  • Understanding pipeline, Continuous Deployment and Integration
  • Extensive experience in technical delivery and agile methodologies
  • A strong advocate for test-driven development and a mentor to others in this practice
  • Experience with Observability as a practice (logging, App Insights, metrics and auditing).
  • An expert of Dev Ops (CI/CD) & Cloud Services (Azure preferred)
  • Expert of several Design Patterns.
  • A master of good security practices.
  • Excellent communication skills & stakeholder management
  • Excellent ability to troubleshooting, analyse and problem-solve
  • A passion for always providing the best possible service
  • Being a team player
  • INDMANS

    Portfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy.

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