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Amentum Logo Amentum · Finance

Payroll Specialist

Poland, Krakow Employment contract · Job Posted February 21, 2026
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Job Description

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

Job Responsibility

  • Payroll Processing - processing new hires, employee changes, terminations, processing hours and pay for all employees, completing appropriate documentation and checklists accurately and timely
  • Payroll Audits - finalize and balance payroll totals using internal tools, perform all necessary reviews and audits to reports produced by outsourced vendors, such us Gross to Net, payment reports, etc
  • Reporting – create and modify payroll related reports to support the needs of departments and customers
  • Customer Service – provide a consistently high-level of customer service and manage escalated cases and service requests within the SLA requirements. Partner with HR/Accounting/Benefits & Compensation/Tax Department and managers/supervisors to ensure that a strong business relationship is maintained
  • Quarter/Year End Support – provide quarter and year-end support in the form of research and review of such things as wage & tax adjustments, out of balance reports, un-reconciled accounts, statutory requirements, etc
  • Process Documentation/Training – create/update process documentation to include work instructions and process flows. Assess current processes to streamline and gain efficiency
  • Knowledge – knowledge of end-to-end transactions, including highly technical and complex payrolls. Research and find creative solutions to solve payroll issues in an increasingly changing environment
  • Teamwork – support other team members as a subject matter expert, mentor, and coach. Participate in team and company initiatives to support the “we” mentality vs. “I”. Work collectively as a team to ensure that we meet our monthly metric goals of processing with minimal errors, worked performed with SLA timeframes and positive employee feedback

Requirements

  • Bachelor’s degree in finance
  • Fluency in English, verbal and written
  • Minimum 4 years of global payroll experience, with companies having 1,000+ employees
  • Intermediate to Advanced software skills and experience with Microsoft Excel, including pivots, lookups, filtering and sorting
  • Basic proficiency and experience with Microsoft Word, Power Point and Visio

What 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
  • 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)
  • Modern office in an attractive location
  • 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
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