Payroll Specialist/ Starszy Specjalista/ Starsza Specjalistka ds. Płac

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.

For our team in Krakow we are seeking a Senior Payroll Specialist/ Starszy Specjalista/ Starsza Specjalistka ds. Płac.

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

Payroll Processing

Payroll Controls, Audits & Compliance

Reporting & Analytics

Stakeholder Management & Customer Service

Payroll Governance & Year-End Activities

Process Improvement & Documentation

Payroll Expertise & Continuous Improvement

Leadership, Training & Team Support

Projects & Vendor Management

• Bachelor's degree in Finance, Accounting, Business Administration, or a related field.
• Fluency in written and spoken English.
• Minimum 4 years of payroll experience, preferably supporting complex and/or global payroll operations for organizations with 1,000+ employees.
• Strong understanding of payroll legislation, compliance requirements, payroll controls, and reconciliation processes.
• Advanced Microsoft Excel skills, including Pivot Tables, XLOOKUP/VLOOKUP, advanced formulas, filtering, sorting, and data analysis.
• Proficiency in Microsoft Word and PowerPoint.
• Demonstrated ability to manage multiple priorities, resolve complex payroll issues, and work effectively with cross-functional stakeholders.
• Experience working with outsourced payroll providers and payroll systems in a multinational environment.
• Strong analytical, problem-solving, communication, and customer service skills.

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 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.

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:

10/05/2026 - 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.