Principal C#/.NET Engineer

Trust in SODA; Cambridgeshire and Peterborough; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

Trust in SODA in Cambridge is seeking a Principal .NET Engineer to provide hands‑on technical leadership within a growing R&D engineering team. This senior individual contributor role defines technical direction, solves complex engineering problems, and mentors other engineers.

You'll work with microservices, Kubernetes and cloud infrastructure, design scalable distributed systems with C#/.NET, and promote AI-assisted development tools to enhance software delivery across international product

Qualifications

• Extensive commercial software engineering experience.

Responsibilities

• Defining technical approaches and architectural direction.

Skills

C#/.NET

Distributed systems

Microservices

Kubernetes

Cloud platforms

Infrastructure as Code

Authentication/Authorization

Software architecture

Technical leadership

AI in development

Tools

Codex

Claude

Job description

Cambridge | Hybrid | £65,000–£90,000 + 10% bonusOur client is a

Principal .NET Engineer Cambridge | Hybrid | £65,000–£90,000 + 10% bonusOur client is a global leader in industrial software and technology, providing solutions used by organisations across manufacturing, energy, engineering and infrastructure. Their technology helps customers manage the complete lifecycle of complex industrial assets, from design and construction through to operation and optimisation.
The business is investing significantly in cloud platforms, industrial data and AI, with its R&D teams working on the next generation of intelligent capabilities for its global customer base.
The opportunity We’re looking for a Principal .NET Engineer to provide hands‑on technical leadership within a growing R&D engineering team in Cambridge.
This is a senior individual contributor role. You won't be managing a large team. Instead, you'll be expected to define technical direction, solve complex engineering problems, influence architecture and mentor other engineers.
What you'll be doing

• Defining technical approaches and architectural direction


• Designing scalable, distributed systems using C#/.NET


• Working with microservices, Kubernetes and cloud infrastructure


• Driving best practices around infrastructure, automation and security


• Solving complex technical problems end‑to‑end


• Influencing architecture across a large-scale platform


• Mentoring and supporting other engineers


• Working closely with product and engineering teams internationally


• Using and promoting modern AI‑assisted development tools such as Codex and Claude

What we're looking for

• Extensive commercial software engineering experience


• Deep C#/.NET expertise


• Strong understanding of distributed systems and microservices


• Experience with Kubernetes, cloud platforms and Infrastructure as Code


• Strong knowledge of authentication and authorisation


• Broad understanding of modern software architecture


• Proven experience taking ownership of complex technical problems


• Ability to provide technical leadership without formal people‑management responsibility


• A genuine interest in using AI tools to improve the software development process