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 HR Services Specialist/ Specjalista/ Specjalistka ds. Obsługi Pracowników on a Fixed Term contract for 12 months.
The selected candidate will be employed by Critical Mission Solutions Sp. z o.o., part of Amentum.
Responsibilities
Actioning Right to Work checks for all new UK hires, ensuring valid checks are completed prior to start date.
Ownership of monitoring new hire tracker, taking pro-active action where necessary to ensure compliance with Company process and UK Home Office statutory guidelines.
Working closely with Onboarding Coordinator to ensure start date changes are captured.
Escalating any potential issues of non-compliance to the Regional lead at the earliest opportunity.
Engaging with Regional Team on complex cases and following escalation procedures where required.
Navigating internal and external systems, liaising with our external Identity Service Provider (IDSP) where necessary on cases.
Scheduling and conducting video calls with new joiners to carry out ID Verification.
Maintaining recordkeeping by managing data updates on the HR Database (Workday) and ensuring Right to Work documentation is filed appropriately within employee records.
Case Management: Daily monitoring of cases and tasks on ServiceNow, ensuring cases are dealt with promptly, followed up or triaged where necessary.
Continuous monitoring of the Right to Work tracker, Process, Training Guides and supporting documentation to ensure they remain up to date.
Ensuring any issues or opportunities for improvement are raised proactively.
Proactively monitoring and coordinating follow up checks for Employee’s on temporary visa’s in line with UK Statutory requirements. Actively contributing to developing a robust process to ensure full compliance with regulations and accurate records.
Providing back up support to global and local pre-boarding processes where required.
Possesses strong interpersonal skills to successfully build productive relationships at all levels
Convey a professional, knowledgeable, helpful and confidential approach
Requirements
Excellent verbal and written communication skills, including strong proficiency in English.
Detail oriented and skilled in monitoring volume data while maintaining data integrity.
Ability to multi-task and manage competing priorities and a diverse workload, while achieving results in a fast-paced, deadline-driven environment
Ability to identify issues, analyse possible solutions and independently resolve problems with medium complexity
Confidence to work under own initiative as well as part of a team
Strong organizational skills, excellent diary and time management skills
Experience/readiness to learn utilizing Outlook, Excel and other MS Office products
Ability to handle confidential issues with discretion
Experience in HR employee data administration or customer service will be an asset
Like fast-paced work environment and working with multiple customers.
Minimum 1 year of experience in a similar role, but appropriate work experience will be an asset
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:
03/09/2026 - 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.
