Executive Search in Defence and National Security: Leadership for a Sector Expanding Under Pressure

Defence, national security, and secure infrastructure are entering a period of sustained investment across the UK and wider allied markets. Defence manufacturing, cyber capabilities, intelligence systems, and critical infrastructure programmes are all expanding as governments respond to geopolitical tensions, technological competition, and the need for greater sovereign capability. 

UK spending commitments alone are expected to rise significantly over the next decade, with plans to increase defence and security expenditure as a share of GDP and to direct more funding towards equipment, cyber capability, and domestic industrial capacity. Reports show defence spending is expected to total £62.2 billion in 2025/26, increasing to £73.5 billion in 2028/29

This shift is changing the hiring landscape across the sector. Long-term government programmes, increased regulation, and the integration of advanced technology are creating demand for senior leaders with experience in highly controlled environments. 

Organisations in the aerospace, aviation, and defence sectors increasingly require executives who understand government procurement, political oversight, and the operational realities of complex engineering and security programmes. 

Investment in Defence and Security Is Driving Long-Term Hiring Demand

Defence spending is rising across NATO countries, with the UK committing to higher expenditure on military capability, intelligence, and national resilience over the coming decade. These increases are not limited to equipment for the armed forces. Funding is being directed towards cyber security, secure communications, infrastructure protection, and advanced manufacturing, all of which require specialist leadership.

Government strategy aims to make defence an engine for growth by investing over £270 billion in cash terms. Defence is both a security priority and an economic driver, with policy aimed at strengthening domestic industry, supporting supply chains, and expanding high-skill employment. Programmes linked to shipbuilding, aerospace, munitions, digital systems, and secure technology are expected to run for many years, creating a consistent need for experienced executives who can manage long development cycles and complex stakeholder environments. 

This means your hiring processes shouldn’t just focus on the short term when you’re looking for leaders at the C-suite or executive level. Boards must plan capability several years ahead, particularly where projects depend on government funding or international partnerships.

Technology Integration Is Changing the Profile of Defence Leaders

Modern defence and security programmes depend heavily on digital systems, data integration, and advanced engineering. Cyber capability, AI-enabled systems, autonomous platforms, and secure communications are now central to national security strategy, which is changing the type of leadership organisations require.

Executives in the sector increasingly need experience that crosses traditional boundaries. Engineering knowledge alone is not enough. Leaders must understand software, systems integration, data security, and the commercial implications of technology investment.

This is particularly evident in cyber and intelligence-related programmes, where organisations are competing with the private technology sector for talent. The result is a smaller candidate pool and more complex search processes, especially for roles requiring security clearance or experience in classified environments.

Defence Manufacturing and Secure Infrastructure are Expanding

A second major theme is the return of domestic defence manufacturing and secure infrastructure projects. Governments are investing in munitions production, naval programmes, aerospace systems, and protected supply chains to reduce reliance on overseas suppliers.

These programmes often involve multi-year contracts, strict regulatory oversight, and collaboration between government, industry, and international partners. Leadership roles in this environment require experience managing large programmes, working within procurement frameworks, and operating under political scrutiny.

Secure infrastructure is also growing as a hiring area. Think cyber protection, energy resilience, communications networks, and critical national systems. These are increasingly treated as part of national security, bringing engineering, technology, and defence disciplines closer together.

For organisations in this space, it means you need more mandates for individuals who possess technical expertise, commercial discipline, and security awareness.

Skills Shortages Are Limiting Growth

Despite increased investment, the defence and security sector continues to face a shortage of experienced engineers, programme leaders, and technical specialists. Government data show skills gaps in the defence and security sectors, ranging from marine engineers to cybersecurity analysts

Competition from infrastructure, technology, and advanced manufacturing industries is making it harder to secure senior talent, particularly in cyber, systems engineering, and high-precision manufacturing roles. The shortage is most visible in projects linked to new platforms, digital capability, and sovereign manufacturing.

Organisations often struggle to find leaders who can build teams, manage suppliers, and deliver under tight regulatory conditions. Boards and employers in the defence and national security industry must embrace international talent mapping, longer timelines, and more detailed assessment of technical capability than in many other sectors.

Government Programmes Mean Leadership Decisions Carry Long-Term Risk

Unlike many commercial industries, defence and national security projects operate on long cycles. Contracts can run for decades, and leadership decisions made today can affect programme performance for many years.

Boards are therefore placing greater emphasis on judgment, stability, and experience in regulated environments. Candidates are expected to demonstrate not only technical competence but also the ability to operate under scrutiny, manage risk, and maintain credibility with government stakeholders.

This is particularly true in organisations involved in defence manufacturing, cyber security, intelligence systems, and secure infrastructure. Here, the consequences of poor leadership can extend beyond financial performance.

Novo’s Perspective

Hiring for senior roles in the defence and national security industry has become more specialised as investment increases across manufacturing, cyber, intelligence, and secure infrastructure. Organisations in these sectors need leaders who understand government programmes, complex supply chains, and the operational demands of highly regulated environments.

The strongest demand is in leadership roles linked to long-term programmes, digital capability, and sovereign production, where the available talent pool is limited, and succession planning is often underdeveloped. Leadership decisions are rarely short-term, and the quality of appointment can influence performance for years. The ability to secure the right leadership will remain one of the main constraints on growth in the sector as long-term government programmes continue to expand.