Onsite Security-Cleared Senior Technical Authority

MASS; Corsham; On-site; GBP 42,000 - 69,000; Full time

Benefits offered by this job

25 days leave

Private medical

Dental insurance

Life assurance

Pension schemes

Wellbeing allowance

Car leasing

Cycle to work

Employee assistance

Job summary

MASS is seeking an experienced Technical Authority to join on-site in Corsham, Wiltshire, in a permanent full-time role. The position offers a salary range of £62,000 to £72,000 per year with Developed Vetting clearance to start and a comprehensive benefits package.

The role requires strong experience in infrastructure, networks, and platform engineering within a complex environment, plus the ability to lead teams and mentor engineers.

Qualifications

• Experience in infrastructure, networks, or platform engineering in a complex environment.
• Demonstrated senior technical escalation authority.
• Deep understanding of change, incident, and problem management processes.
• Ability to translate complex technical concepts into clear, actionable explanations.
• Experience leading or mentoring technical teams.
• Strong stakeholder management with constructive challenge and influence.
• Sole UK national eligible to work in the UK and able to obtain DV clearance.
• Desirable: familiarity with ITIL principles and governance frameworks.
• Desirable: exposure to secure-by-design or compliance-driven delivery.

Responsibilities

• Provide leadership, technical assurance, and strategic direction across infrastructure and network services.
• Serve as the final escalation point for complex technical decisions.
• Review and assure infrastructure, network, and platform designs.
• Ensure solutions are secure, supportable, and aligned with standards.
• Maintain visibility of performance, risk, and lifecycle health across domains.
• Lead and mentor network and infrastructure engineers, promoting strong practices.
• Support workload prioritisation and operational improvements.
• Contribute to long-term technology roadmaps and identify risks and opportunities.
• Track emerging technologies and recommend value-adding adoption.
• Lead change management elements and provide expert input to CAB.
• Drive governance process improvements and embed lessons learned.
• Lead root-cause analysis and coordinate long-term remediation of incidents.
• Work with teams to reduce technical debt and increase platform stability.
• Drive proactive risk reduction across infrastructure and networks.
• Act as technical authority in customer/partner discussions.
• Review supplier designs and proposals for standard alignment.
• Represent the organisation in governance forums with confidence.
• Mentor engineers, identify skills gaps, and shape training plans.
• Promote high-quality engineering and secure-by-design practices.

Skills

Infrastructure

Networks

Platform engineering

Technical escalation

Incident management

Change management

Stakeholder management

Mentoring

Clear communication

DV clearance

Governance

ITIL familiarity

Security by design

Job description

MASS is seeking an experienced Technical Authority to join on-site in Corsham, Wiltshire, in a permanent full-time role. The position offers a salary range of £62,000 to £72,000 per year with Developed Vetting clearance to start and a comprehensive benefits package.

The role requires strong experience in infrastructure, networks, and platform engineering within a complex environment, plus the ability to lead teams and mentor engineers.