Senior Manager Corporate Development

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.

The Senior Manager of Corporate Development leads strategic growth initiatives through mergers and acquisitions, partnerships, divestitures, and corporate strategy execution. This role is responsible for identifying, evaluating, and executing inorganic growth opportunities aligned with the company’s long-term strategic objectives. This position partners closely with executive leadership, finance, legal, operations, and business unit leaders to drive disciplined capital deployment, value creation, and post-transaction integration success. This is a HYBRID role (work on-site 3 days a week at our Reston, VA Amentum office). US Citizenship is required to apply.

Key Responsibilities:

M&A Strategy & Execution

• Lead end-to-end M&A transactions, including target identification, valuation, financial modeling, due diligence, deal structuring, negotiation, and closing.
• Develop and maintain strategic acquisition pipeline aligned with corporate growth priorities.
• Conduct market and competitive analyses to inform inorganic growth strategy.
• Prepare investment theses, executive presentations, and board materials.

Financial Analysis & Valuation

• Build and review complex financial models (DCF, LBO, accretion/dilution, synergy analysis).
• Evaluate transaction economics, synergy opportunities, and integration risks.
• Partner with FP&A, accounting, and treasury teams to assess capital structure and transaction funding strategies.

Due Diligence & Transaction Management

• Lead cross-functional diligence efforts across finance, legal, HR, IT, operations, and compliance.
• Manage internal and external advisors including investment bankers, consultants, legal counsel, and accounting firms.
• Drive deal timelines, governance, approvals, and documentation processes.

Integration & Value Creation

• Partner with integration leaders to support post-merger integration planning and execution.
• Track synergy realization, financial performance, and strategic outcomes post-close.
• Identify operational improvement and value creation opportunities within acquired entities.

Executive & Stakeholder Engagement

• Serve as a trusted advisor to senior leadership on corporate strategy and inorganic growth.
• Communicate clearly and effectively with executive leadership and boards.
• Build strong relationships with external partners, bankers, private equity firms, and industry leaders.

Knowledge, Skills and Abilities:

• Strategic thinker with strong business acumen and commercial judgment.
• Advanced financial modeling and analytical capabilities.
• Executive presence and ability to influence senior stakeholders.
• Strong project leadership and cross-functional collaboration skills.
• Exceptional written and verbal communication.
• High integrity, sound judgment, and ability to manage confidential information.

Minimum Qualifications:

• Bachelor’s degree in Finance, Accounting, Economics, Business, or related field required; MBA or CPA/CFA strongly preferred.
• 12+ years of progressive experience in corporate development, investment banking, private equity, transaction advisory, or strategy consulting; and 8+ years in managerial experience
• Experience leading complex M&A transactions end-to-end.
• Strong experience with financial modeling, valuation, and investment analysis.
• US citizenship is required.
• Work on-site 3 days a week, work remote-telework 2 days a week.

Preferred Qualifications:

• Government contracting, aerospace & defense, infrastructure, engineering services, or federal services environment.
• Experience navigating regulatory and compliance frameworks (e.g., FAR, DFARS, ITAR, security clearances).
• Integration leadership in large-scale, multi-billion-dollar acquisitions.

       

Compensation Details:

180K - 210K

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

 

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

 

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.