Strategic Defence Key Account Manager

STS Defence; Gosport; On-site; GBP 65,000 - 90,000; Full time

Job summary

STS Defence is seeking an experienced Key Account Manager to lead and grow strategic relationships within the defence sector. You will align customer requirements with our engineered production capabilities to deliver technically and commercially sound solutions.

The role combines an engineering/technical manufacturing background with proven account management expertise in a highly regulated environment. You will build trusted relationships with senior stakeholders and drive long-term

Qualifications

• Demonstrable experience in customer service or account support.
• Prior experience within defence, military, aerospace, or electronics manufacturing is desirable.
• Strong attention to detail with high standards of delivery.

Responsibilities

• Establish and maintain strong, long-term relationships with key defence clients, acting as the primary point of contact.
• Collaborate with engineering, production, and project management teams to ensure delivery meets technical, contractual, and quality requirements.
• Identify and develop account growth opportunities, including new programmes, product applications, and service offerings.
• Lead commercial activities across assigned accounts, including contract management, variations, and pricing considerations.
• Engage with internal and external stakeholders at all levels, balancing client needs with organisational priorities.
• Ensure compliance with regulatory, security, and quality standards within a highly regulated defence environment.
• Monitor customer requirements, industry trends, and competitor activity to inform account strategy and delivery.
• Conduct project closure analysis and reporting, capture lessons learned, and apply insights to continuous improvement.

Skills

Account management

Communication skills

Attention to detail

MS Office proficiency

Tools

MS Office

Job description

STS Defence is seeking an experienced Key Account Manager to lead and grow strategic relationships within the defence sector. You will align customer requirements with our engineered production capabilities to deliver technically and commercially sound solutions.

The role combines an engineering/technical manufacturing background with proven account management expertise in a highly regulated environment. You will build trusted relationships with senior stakeholders and drive long-term