Global Payroll Manager/ Kierownik/ Kierowniczka Działu Międzynarodowej Obsługi Płacowej

At Amentum, we're not just solving problems — we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values diversity and ethical excellence, this is the place where your ambition can thrive. We believe success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all. If you're ready to join a team that values your unique perspective and is committed to your safety, well-being, and professional growth — we’d love to hear from you.

We are seeking a Global Payroll Manager/ Kierownik/ Kierowniczka Działu Międzynarodowej Obsługi Płacowej to work out of our growing office in Krakow.

The selected candidate will be employed by Critical Mission Services Sp. z o.o., part of Amentum.

About the opportunity

The Payroll Manager will plan, coordinate, and handle the duties of the payroll department. The duties of this role will include oversight of payroll, payroll accounting, and payroll taxes for the company, stock administration, assist in external and internal audits related to payroll and accountable for making sure that the payroll department is adhering to company and legal standards. The Payroll Manager will implement, maintain, and review payroll processing systems to ensure timely and accurate processing of payroll transactions including salaries, benefits, garnishments, taxes, and other deductions. They will also ensure accurate and timely processing of payroll updates including new hires, terminations, and changes to pay rates. Additionally, they will resource and guide the payroll team to fit the business needs.

An ideal candidate will be someone who is a game-changer and will take charge of the entire payroll ecosystem, continually drive process improvement, and be a qualified payroll resource for the entire company. If you have the experience and motivation to oversee this business-critical process and the desire to grow quickly within the Amentum organization, we need to talk!

Responsibilities

• Operate as a global subject matter expert in maintaining market knowledge in payroll policies and greatest practices (e.g., auditing), payroll compliance, internal controls, etc.

• Resource and guide the payroll team to ensure timely and accurate processing of payroll activities

• Perform duties that require an understanding of company payroll policies and procedures and collaborate on cross-functional projects

• Act as a key resource for employee payroll and benefit related processes and questions, including calculation of wages, deductions (including taxes and benefit premiums), PTO, enrolment, and other related inquiries

• Troubleshoot payroll problems and interface with business leaders on all payroll matters

• Develop and maintain pay policies, payroll calendars, payroll checklists, process maps and other procedural documentation

• Scale processes to enhance payroll operational efficiency including the design and implementation of internal controls and maintain payroll policies and procedures

• Partner with Compensation and the Stock Administration teams to handle stock-based compensation processing in payroll, including stock option exercises, RSUs and ESPP, SIP to ensure payroll tax compliance

• Partner with Amentum’s inhouse tax team and external tax consultants to ensure we remain current on new legislation and regulatory rulings impacting payroll

• Perform audits on data and system maintenance, including, but not limited to new hire set up, tax forms processing, local taxes, timekeeping input, direct deposit set up, benefits set up, terminations, and garnishments processing, and ensure SOX compliance

• Assist with internal and external audit requirements to ensure compliance

• Maintain confidential information when required by legal or ethical standards and ensure privacy of employee records

Requirements

• 7+ years of strategic and tactical global payroll management experience, including experience in team management, preferably at a mix of public and private companies

• Workday HRIS

• Experience handling third-party vendors

• Strong team player with the experience to clearly and effectively communicate

• Fluent English is a must

• Must be proactive and a self-starter with the experience to take initiative to find a solution to problems

• Strong interactive, organizational, oral and written communication skills required

• Detail-oriented, strong logical skills, be able to detect inconsistencies in data, and be able to work with minimal guidance

• Be able to work reliably and efficiently under demanding target dates and guide to established time frames

• Intermediate to Advanced Excel experience – be able to perform VLOOKUP, sum if(s) and build pivot tables required

• Thrives on creating process, scaling teams, and navigating growing pains

We Offer

• International working environment and unique company culture fostering individual career growth and work-life balance

• Personal development opportunities and training in industry-leading tools

• Friendly and supportive team atmosphere

• Participation in global projects and process improvements

• Full-time employment contract with competitive salary

• Benefits package including medical care, life insurance, My Benefit cafeteria with co-financing for sports activities, employee wellbeing support program

• Flexible working hours (start between 7:30–10:00)

• Short Fridays (Monday to Thursday we work 8,5h. Friday is a 6-hour workday)

• Hybrid or stationary working model — based on your preference

• Modern office in an attractive location

Our Commitment to Inclusion

We know that if we are inclusive, we’re more connected — and if we are diverse, we’re more creative. We welcome people for who they are, regardless of age, disability, gender identity or expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, or family status.

Compensation Details:

Information regarding the salary for this position will be shared at later stages of the recruitment process, in a way that ensures transparent and well-informed negotiations.

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:

04/30/2026 - Until Filled

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 (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .