Senior System Engineer (SFIA4)

Zaizi London, England May 23, 2026

Type Full Time
Pay £75,000 – £98,000
Work Hybrid
Level Senior

Senior System Engineer focuses on architectural stewardship: provide high-level technical overwatch of architectural design, ensuring system integrity during the integration of cloud architectures and ai/ml models.

What the role involves

  • Architectural Stewardship: Provide high-level technical overwatch of architectural design, ensuring system integrity during the integration of Cloud architectures and AI/ML models.
  • Process discipline to enhance quality, ensuring that Data Integrity and Algorithm Assurance are maintained throughout the lifecycle.
  • Resilience: The composure to lead technical teams through high-pressure delivery milestones and complex "system-of-systems" integration challenges.

Skills and requirements

  • Stakeholder Management: Proven ability to manage multiple, challenging stakeholders, navigating competing priorities within the MOD, DE&S, or wider government agencies.
  • Regulatory Compliance: Strong practical experience working to established and international standards from ISO to Def-Stans and JSPs.
  • Architectural Frameworks: Practical experience in applying MODAF or TOGAF to ensure coherent system-of-systems design across hybrid-cloud environments.
  • Vetting: Applicants must hold, or be capable of obtaining, UK Developed Vetting (DV) clearance.

Confirmed role details

  • Methodological Versatility: Remain well-versed in multiple delivery methodologies, including Waterfall, Scaled Agile (SAFe), and hybrid frameworks suited for secure government digi.
  • Due to this restriction we can currently only recruit candidates who have the right to work in the UK without sponsorship and who have lived in the UK for the last 5+ years continu.
  • Salaries reviewed annually to ensure they reflect your performance and market value.
  • Loyalty Pension: We invest in your future. Starting at a 5% employer contribution, we increase this by 0.5% every year after your third anniversary, up to a maximum of 8%.

Candidate fit

  • technical judgement, safe working habits, careful diagnostics, and practical problem-solving

Known job details

  • Pay: £75,000 - £98,000
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