Systems Engineer - DOORS NG

  • CBSbutler Holdings Limited trading as CBSbutler
  • Reading, Oxfordshire
  • Feb 12, 2026
Contractor I.T. & Communications

Job Description

Job title: Systems Engineer - DOORS NG

Rate: 83 per hour inside ir35

Location: Reading/hybrid (2-3 days per week on site)

Contact: 6 months+

Job description:

I am looking for a Systems Engineer within product delivery for a client of mine who are a leading tech and engineering firm operating within the UK defence sector. You'll lead the digital shift from legacy tools to DOORS NG, delivering end-to-end requirements lifecycle management across systems, software, and domain engineering.

You'll enable traceable, auditable, and governed requirements practices, integrating partners, suppliers, and MBSE models into a seamless Digital Thread. Your leadership ensures certified capabilities, streamlined change management, and a single source of truth across complex, regulated programmes.

Responsibilities:

  • Own the delivery, migration, and continuous improvement of Requirements Engineering capabilities.
  • Lead the controlled transition from legacy RM tools to DOORS NG, ensuring safe coexistence, data quality uplift, and integration with MBSE, ALM, PLM, and Test.
  • Define roadmaps, prioritize backlogs, and implement governance, naming conventions, link semantics, and quality metrics.
  • Enable full end-to-end traceability from stakeholder needs through verified and certified system capabilities.
  • Manage vendors, suppliers, and cross-partner integrations to deliver scalable, compliant, and future-ready solutions.
  • Drive workforce adoption with training, role-based onboarding, and change programmes.

Expereince Required:

  • Deep expertise in DOORS/DOORS NG, requirements lifecycle, configuration management, and digital thread integration.
  • Experience delivering requirements engineering capabilities in Aerospace, Defence, or regulated industries.
  • Proven ability to lead complex transitions, migrations, and multi-partner integration programs.
  • Strong strategic vision, stakeholder influence, and program management skills.
  • Security clearance or eligibility is mandatory.

Impact You'll Make:
From pilot migrations to fully operational DOORS NG environments, you'll define how requirements live, evolve, and connect across the enterprise-transforming traditional processes into model-driven, digitally traceable engineering excellence.

If you are interested in this role, please feel free to submit your CV.