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Principal Engineer .Net

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Nicoll Curtin

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Location:
United Kingdom , London / Coventry

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Category:
IT - Software Development

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Contract Type:
Employment contract

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Salary:

100000.00 GBP / Year
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Job Description:

We are seeking an experienced Principal Engineer (.NET) to provide technical leadership across large‑scale, cloud‑native platforms used by millions of customers. This is a hands‑on leadership role for a senior technologist who can set engineering direction, solve complex architectural challenges, and raise engineering standards across multiple teams, while remaining close to the code. You will work in a collaborative, inclusive engineering environment that values modern practices, experimentation, and evidence‑based decision making.

Job Responsibility:

  • Define and evolve engineering strategy, standards, and best practices across your domain
  • Set technical direction and architecture principles for complex, distributed systems
  • Lead by example through deep hands‑on expertise, supporting senior engineers and delivery teams
  • Design and oversee large‑scale, highly available, cloud‑native systems
  • Provide expert guidance on technical risk, impact assessment, and prioritisation
  • Drive DevOps culture, CI/CD automation, and engineering excellence
  • Implement and improve observability (monitoring, logging, SLO/SLI frameworks)
  • Own secure‑by‑design practices, including vulnerability management and risk remediation
  • Leverage AI and intelligent automation to modernise platforms and improve developer productivity
  • Mentor engineers at all levels and contribute to a strong engineering community of practice
  • Evaluate emerging technologies, lead PoCs, and perform fitment analysis where appropriate

Requirements:

  • Expert, hands‑on experience with ASP.NET Core, WebAPI, C#, Entity Framework
  • Strong cloud experience, preferably Microsoft Azure
  • Proven delivery of microservices and distributed systems at scale
  • Experience with Kubernetes, Kafka, and containerised workloads
  • Working knowledge of MongoDB and cloud integration patterns
  • Infrastructure as Code using Terraform
  • Front‑end literacy with JavaScript / TypeScript
  • Strong understanding of software architecture, scalability, resilience, and performance
  • Practical experience applying generative AI tools responsibly within engineering workflows
  • Experience operating at Senior / Principal Engineer level
  • Ability to influence engineering strategy across multiple teams or domains
  • Comfortable working with senior engineering leaders and stakeholders

Nice to have:

  • Strong advocate for Agile delivery and modern engineering practices
  • Data‑driven approach to decision making and trade‑off analysis
  • Passion for mentorship, innovation, and continuous improvement

Additional Information:

Job Posted:
May 05, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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