Senior Project Accounting Specialist/ Starsza Specjalistka/ Starszy Specjalista ds. Księgowości Projektów

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.

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

For our team in Krakow, we are seeking a Senior Project Accounting Specialist/ Starsza Specjalistka/ Starszy Specjalista Ds. Księgowości Projektów

About the role

This position is ultimately responsible for day-to-day accounting of project financials throughout the project’s life cycle in accordance with US GAAP (Generally Accepted Accounting Principles) and company’s procedures. The aim of this role is to support the operations teams in the project billing process and ensure that month-end reporting is applied accurately following the timescales required.

Our Senior Project Accountant...

• Follows company policies, procedures and US GAAP (Generally Accepted Accounting Principles), statutory requirements and SOX (Sarbanes Oxley) controls

• Maintains project setup and project close in appropriate manner to ensure completeness and accuracy of project’s evidence

• Prepares client invoices in accordance with the contract terms

• Provides month-end reporting on project performance including gross margin variances and all other financial aspects, prepares specialized reports and accounting data analysis

• Effectively communicates with the project team during the entire life cycle of the project and provides continuous support and guidance

• Monitors project balances on Accounts Receivable, Accounts Payable, Unbilled and Unearned items, DSO (Days Sales Outstanding)

• Prepares and review various journal entries such as: revenue adjustments, cost accruals, provision for loss

• Liaises with other departments, clients and outside vendors to resolve cross-functional matters

• Ensures that all deadlines are met

• Participates in internal and external audits

• Prepares project specific analysis and ad hoc reporting

• Solves complex problems and takes a new perspective using existing solutions

• Submits recommendations for improvements and actively participates in company’s initiatives in this area (process, procedures, systems and controls improvements)

• May be requested to provide on-the-job training to new joiners

Requirements

• Master's degree in Finance or Accounting, equivalent major or equivalent experience

• Several years of professional accounting experience, preferably within an international business environment (Project Accounting background will be a strong asset)

• Fluency in English, both written and spoken

• Experience with Enterprise Resource Planning (ERP) systems, especially Costpoint

• Very good MS Excel knowledge (working knowledge of Visual Basic for Applications will be 

• an asset)

• Advanced analytical skills, accuracy and focus on details considering "the big picture" while adapting information

• Problem-solving thinking, solution-based and can-do attitude

• Effective time and tasks management skills to balance own priorities and assist team members in completing all deliverables  

• Excellent communication/basic presentation skills (both written and verbal) to handle all business situations in a diplomatic and sensitive manner and win client’s trust

• Ability to work with minimal supervision, receive minimal guidance and show initiative to take on 

• new tasks

• Readiness to participate in non-standard initiatives

• Strong commitment to self-development and continuous-learning 

• Collaborative approach

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:

07/01/2026 - 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.