Principal Engineer

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  • Job type

    Contract

  • Location

    London

  • Working Pattern

    Full-time

  • Specialism

    Software Development

  • Industry

    Technology & Internet Services

  • Pay

    up to £640 pd (Inside IR35)
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Principal Engineer – Active SC, 4GL

Principal Engineer – Active SC, 4GL
Up to £640 per day (Inside IR35)
London / Remote
12 Months

My client is an instantly recognisable consultancy who require a Principal Engineer with Active NPPV3 and Active Security Clearance (SC), to help lead a business critical project for an end client.

Key Requirements:
  • Proven experience as a Principal Engineer
  • Active NPPV3 and Active Security Clearance (SC)
  • Proven experience leading multiple engineering teams on complex, large‑scale projects
  • Strong capability in stakeholder engagement across technical and non‑technical groups
  • Demonstrated leadership and mentoring skills, supporting the growth and development of engineers
  • Experience with backlog refinement and preparing high‑quality user stories
  • In‑depth knowledge of a fourth‑generation programming language (4GL)
  • Strong skills in object‑oriented analysis and design (OOAD)
  • Proven experience with C#, Java (Spring Boot, JPA/Hibernate), REST APIs, observability, monitoring, queue technologies, security, and relational databases (especially Postgres).
  • Strong understanding of SOLID principles, microservice development focused on high availability and data integrity, and solid use of JUnit, TDD, and integration/end‑to‑end testing.

Nice to have:
  • Proven experience in JavaScript or Vue.js for front‑end development.
  • Exposure to AWS and DevOps tooling such as Docker, Terraform, Kubernetes, Helm, and Git.
  • Exposure to PHP or Drupal.
  • Exposure to WordPress optimisation, including caching, CDN integration, and database tuning.


If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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Talk to Lauren Duke, the specialist consultant managing this position

Located in London-City, 5th Floor, 107 Cheapside, Telephone 02034650104
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