Senior .NET Principal Engineer – Remote UK/Ireland

Primis; Remote; GBP 90,000 - 110,000; Full time

Job summary

A growing global payment platform is seeking a Principal Software Engineer .NET to design and develop mission-critical solutions. The ideal candidate will have over 10 years of experience with a strong focus on architectural leadership in a fully remote capacity from the UK. This role emphasizes performance optimization, system reliability, and collaboration across teams. Attractive benefits include 45 days of annual leave and comprehensive healthcare support.

Benefits

45 days annual leave plus bank holidays

Comprehensive private healthcare

Annual learning budget for courses and certifications

Transparent career progression

Qualifications

• 10+ years of software engineering experience with proven architectural leadership.
• Ability to shape technical strategy and navigate complex system design.

Responsibilities

• Design and develop mission-critical platform services, APIs, and merchant portals.
• Drive performance optimisation and system reliability through intelligent engineering.
• Champion engineering excellence in architecture, code quality, and delivery.
• Partner with cross-functional teams to deliver solutions.

Skills

C#

.NET Core

Cloud: Azure

SQL

JavaScript

CI/CD pipelines

Job description

A growing global payment platform is seeking a Principal Software Engineer .NET to design and develop mission-critical solutions. The ideal candidate will have over 10 years of experience with a strong focus on architectural leadership in a fully remote capacity from the UK. This role emphasizes performance optimization, system reliability, and collaboration across teams. Attractive benefits include 45 days of annual leave and comprehensive healthcare support.