Senior Director, Global Tax Reporting and U.S Compliance

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 Company is seeking a Senior Director, Global Tax Reporting and U.S Compliance to lead the Company’s worldwide accounting for income taxes under ASC 740 and its U.S. federal, state, and international income tax compliance functions.

Reporting to the Vice President, Tax this is a highly visible hands-on leadership role responsible for accuracy timeliness and integrity of the Company’s quarterly and annual global tax provision, related SEC disclosures and U.S income tax filings. The director will lead a talented, energetic and highly collaborative team of tax professionals with strong foundation.  We are seeking a leader who will complement these qualities and someone who brings positive energy, takes ownership and follows matters through completion, approaches challenges with optimism practically and a solutions-oriented mindset.

This role is a great opportunity for someone who enjoys working in an extremely dynamic, diverse, and fast-paced environment. Candidates must be within driving distance to our offices in Northern Virginia and US Citizenship is required.

A successful candidate will be;

• A technically credible ASC 740 leader who is willing to engage directly in the details

• An energetic and collaborative leader who enjoys working with and developing high caliber team of tax professionals

• A high initiative, ownership-oriented individual who anticipates needs, moves work forward and reliably sees projects through completion

A process minded builder who is energized by making complex work simpler, more controlled and scalable.

Primary responsibilities:

• Lead the global ASC 740 tax provision processes, from planning and forecasting through to calculations, recording, analysis and reporting and long-range planning  

• Ensure that the group's tax accounting processes, documentation and related systems comply with Sarbanes Oxley internal control requirements

• Serve as primary liaison with external auditors on ASC 740 audit support, disclosures and controls

• Maintain relationships with internal and external stakeholders, including controller’s office, FP&A, IT, Internal audit treasury, external services providers and auditors

• Lead, supervise, and improve the tax accounting processes and delivery schedule, monitor tax law and accounting pronouncement changes

• Assist with mentoring, the tax team’s development of technical skills, and maintaining and enhancing team dynamics

• Direct preparation and review of consolidated U.S. federal and multi-state corporate income/franchise tax returns.

• Oversee U.S. international calculations including GILTI, FTC, FDII, section 163(j) and oversee US international reporting

• Manage extensions, estimated payments, refunds, amended returns and tax account administration

• Oversee outsource and co-source third-party providers handling specific compliance obligations, filings or specialized federal and state schedules.

• Implement automation, analytics and AI in areas such as data collection, reconciliation, workpapers and tax calendar management

Knowledge, Skills & Abilities:

• ASC 740 & SEC Disclosures: Expert-level understanding of accounting for income taxes under US GAAP, including quarterly/annual global tax provisions, deferred taxes, valuation allowances, and uncertain tax positions (ASC 740-10/FIN 48).

• Corporate & International Tax Law: In-depth knowledge of U.S. federal consolidated corporate returns, multi-state franchise/income tax compliance, and complex U.S. international tax mechanics (GILTI, FTC, FDII, and Section 163(j)).

• SOX Internal Controls: Thorough knowledge of Sarbanes-Oxley (SOX) compliance, risk management frameworks, and internal control requirements related to financial reporting for the tax function.

• Tax Technology & Automation: Mastery of modern data analytics infrastructure, tax provision software, and data management pipelines.

• Advanced Data Analytics & Tech: Hands-on proficiency using advanced Excel, Power BI, Power Query, Alteryx, and SQL to automate data collection, build dynamic workpapers, and eliminate manual processes.

• Executive & Technical Communication: Strong ability to articulate complex tax concepts, reporting risks, and SEC financial statement disclosures clearly to external auditors, the VP of Tax, and cross-functional corporate leaders.

• Tax Compliance Management: Precision in directing complex corporate filings, managing extensions, tracking estimated payments, and overseeing co-sourced or outsourced third-party tax service providers.

• Financial Process Optimization: Skill in designing scalable, controlled, and simplified workflows out of highly complex tax data streams.

• Hands-on Strategic Leadership: Ability to operate as a technically credible leader who sets the long-term global tax strategy while willingly diving into the granular technical details when necessary.

• Team Development & Mentorship: Ability to cultivate, coach, and inspire a highly collaborative team of high-caliber tax professionals, building out their technical skills and driving engagement.

• Ownership & Problem-Solving: Ability to maintain high initiative, anticipate business needs, work through roadblocks with an optimistic, solutions-oriented mindset, and dependably drive projects to completion.

• Cross-Functional Collaboration: Ability to build and maintain strong strategic relationships across internal departments (Controller’s office, FP&A, IT, Internal Audit, Treasury) and with external auditors.

• Advanced Excel skills, familiarity with Power BI, Power  query, Altertyx, SQL

Required Qualifications:

• Typically requires 10+ years of progressive corporate income tax experience in a multinational public company, big four public accounting firm or a combination, with a Bachelor’s degree in Accounting, Finance or related field.

• CPA and/or Master’s degree in relevant field.

• Deep experience in ASC 740, proven experience leading global tax provision and SEC reporting experience.

• Strong US federal and state income tax compliance experience.

• Experience in government contracting industry preferred.

• Onesource Tax Compliance and Provision experience.

• US Citizenship is required to apply.

• Candidates must be within driving distance to our offices in Northern Virginia.

Compensation Details:

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.