National Security Solutions - Account Manager
About the role
Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.
Are you seeking a career that offers a healthy work-life balance, a friendly company culture, and engagement with a supportive community?
We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.
People are our greatest asset, and we offer a competitive package to retain and attract the best talent.
Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.
Role Title: NSS Account Manager
Role Description:
The NSS Account Manager is responsible for driving business growth by identifying and securing new opportunities. Additionally, Account Managers will provide support to the Delivery Directors’ and aid contract extensions and uncover additional growth potential.
CORE DUTIES
Business Development and Growth
Identify and pursue new business opportunities in adjacent markets and within existing accounts
Respond to opportunities within established client panels to secure additional work
Facilitate the development and submission of bids and proposals to support account growth
Account and Client Management
Establish and maintain strong client relationships to support growth initiatives
Manage account opportunities, sales results, and forecasts in line with approved sales processes
Conduct regular call reports and maintain accurate records of client interactions and opportunities
Transition and Delivery Support
Win work and establish new accounts, ensuring smooth transition to the delivery team for ongoing sustainment
Support contract extensions to maintain and existing client relationships
Essential Requirements:
Proven experience in account management, business development, or sales within relevant industries
Demonstrated success in identifying and securing new business opportunities and expanding existing accounts
Facilitating bids, proposals, or contract submission
Strong client relationship management and stakeholder engagement skills
Excellent written and verbal communication skills, including report preparation and proposal writing
Ability to manage account opportunities, sales results, and forecasts in line with approved processes
Strong organisational and time-management skills, with the ability to manage multiple opportunities simultaneously
Results-oriented, proactive, and self-motivated
High attention to detail, particularly in documentation, reporting, and bid processes
Collaborative and adaptable, capable of working with internal delivery and support teams
Desirable Requirements:
Experience in Defence, government, public sector, or large corporate account management
Exposure to adjacent market opportunities and cross-selling strategies
Managing contract extensions and client panel opportunities
Understanding of governance frameworks, sales processes, and commercial reporting
Ability to analyse market trends and client needs to inform growth strategies
Strategic thinker with strong problem-solving and decision-making capabilities
Professional development or certifications in sales, account management, or business development
Relevant tertiary qualification in business, commerce, or a related discipline
Required Security Clearance Level: NV1
Location: Canberra with Hybrid Optional
Weekly Hours: 40
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