Senior .NET/C# Engineer — Cloud & Enterprise Apps

Pioneer Search; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Pioneer Search is seeking a Senior Software Developer to join a high-performing team in the UK. You will design, build and modernise bespoke applications on a Microsoft stack, contributing to critical digital platforms and cloud-based solutions that support rapid international growth.

The role involves collaborating with product owners, architects and engineers to deliver robust, scalable software, while driving testing, automation and deployment improvements.

Qualifications

• Proficient in C#, .NET and ASP.NET development across the full stack.
• Strong experience with SQL Server and relational database design.
• Familiarity with modern front-end frameworks like Angular and ORM tools.

Responsibilities

• Design, develop and enhance enterprise-grade web applications and services.
• Collaborate with engineers, product specialists and stakeholders to deliver scalable solutions.
• Contribute to architecture discussions and technical design decisions.
• Mentor junior teammates and support engineering capability growth.
• Improve testing, automation, deployment and development processes.
• Review security and API design to align with standards.

Skills

C#

.NET Framework

ASP.NET

SQL Server

Angular

Entity Framework

TDD

Microservices

Job description

Pioneer Search is seeking a Senior Software Developer to join a high-performing team in the UK. You will design, build and modernise bespoke applications on a Microsoft stack, contributing to critical digital platforms and cloud-based solutions that support rapid international growth.

The role involves collaborating with product owners, architects and engineers to deliver robust, scalable software, while driving testing, automation and deployment improvements.