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# Principal Software Developer

- **Company:** ECM Selection Limited
- **Location:** Cambridge, UK
- **Salary:** £80,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Amazon Web Services, User Authentication, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Cloud Engineering, OAuth, Microservices
- **Published:** September 10, 2026
- **Apply:** https://www.ecmselection.co.uk/register/27704

## About the Role

* Prior experience designing and successfully delivering complex, high-quality enterprise and/or cloud solutions, from technical domains such the scientific, engineering and/or industrial sectors.
 * Significant skills with C# and modern .NET, creating elegant designs, tracking the evolution of the language and selecting the best elements to incorporate.
 * Experience with AWS or Azure as a target platform, containers, and potentially cloud native approaches, Kubernetes etc. Ideally (not necessarily) this may include specific knowledge of vendor offerings and appropriate architectures and patterns for those offerings.
 * A deep understanding of cloud-compatible architectures (such as microservices and SoA), RESTful API design considerations, and ideally, a good awareness of security and authentication considerations (OAuth is relevant).
 * A strong academic track record including a good technical degree and top A-level grades or equivalent.

## Description

This role will suit a principal software developer with expertise guiding and contributing directly to cloud software development with AWS or Azure. The data-oriented platform and pipeline at hand is central to a suite of applications with a positive impact on global sustainability, and this is a prominent role with responsibility and reward.

You will have a principal engineer's ability to address the finer points of architecture, consider the ramifications of far-reaching decisions, collaborate with stakeholders, and cultivate and apply the right elements of modern good practice and standards. Through such actions and direct contributions you will play a key part in shaping platform capabilities and effectiveness., Keywords: Principal engineer, principal software developer, C#, .NET, cloud, Azure, AWS, cloud native, containers, microservice, service-oriented, REST, API, intelligence, security, authentication, OAuth, sustainability, Cambridge, hybrid.


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