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Salary
$107k per year
Location
Hybrid (Cambridge, United Kingdom)
Seniority
Principal
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 3, 2026. First seen by Alion on Sep 10, 2026. ECM Selection scores B on the Alion truth index.

Overview
Company
Impact
Profile match
ECM Selection is a UK technical recruitment agency that places engineers, scientists and other numerate candidates with high-technology employers, from fresh graduates to technical directors. Working in the sector for more than 30 years, it recruits for roles such as RF engineers, hardware assembly and prototyping technicians, research scientists and technical sales engineers, mainly around Cambridge, London and Guildford. The company is headquartered in Stow cum Quy near Cambridge, England, United Kingdom.

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.

You will also bring:

  • 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.

The company offers a multi-cultural environment, a focus on sustainability, and a top package including a highly competitive salary, enhanced pension and holiday, hybrid working several days per week, and a host of career and skills development options in addition to tailored package elements.

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.

Please note: even if you don’t have exactly the background indicated, do contact us now if this type of job is of interest - we may well have similar opportunities that you would be suited to. And of course, we always get your permission before submitting your CV to a company.

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