Join Our New Integrated Delivery Solutions team!

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’re building something exciting — a new Integrated Delivery Solutions team (IDS) and we are looking for a Senior Planner/ Starszy Specjalista/ Starsza Specjalistka  ds. Planowania i Harmonogramów to join the team.

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

About the Role 

The Senior Planner & Scheduler plays a critical role in supporting the successful delivery of complex projects by developing and maintaining integrated project schedules, analysing performance data, and collaborating with cross-functional teams. This role requires deep expertise in planning and scheduling, along with a solid understanding of related disciplines such as cost control and risk management. Working independently with minimal guidance, the Senior Planner & Scheduler applies best practices and business insights to improve project outcomes. The role may lead project planning efforts or have accountability for ongoing scheduling activities across multiple projects or programs. It also serves as a resource for colleagues with less experience, contributing to team development and operational excellence.

Key responsibilities:

• Develop and maintain detailed project schedules using tools such as Primavera P6 and MS Project, ensuring alignment with scope, milestones, and deliverables.

• Apply in-depth knowledge of planning and scheduling, along with basic understanding of related disciplines (e.g., cost control, risk management), to support integrated project controls.

• Solve complex scheduling challenges by applying innovative thinking and leveraging existing solutions.

• Take ownership of planning activities, working independently with minimal supervision, and leading scheduling efforts within broader projects or programs.

• Act as a mentor and resource for junior planners and schedulers, sharing expertise and supporting their development.

• Collaborate with project managers, engineers, finance, and other stakeholders to ensure schedule integration and alignment with business goals.

• Support change and risk management processes by evaluating schedule impacts and conducting scenario planning.

• Monitor and report on schedule performance metrics, including earned value, schedule variance, and forecast accuracy.

• Drive continuous improvement in scheduling practices, tools, and reporting by applying best practices and business insights.

• Contribute to the development and implementation of digital dashboards and reporting tools for schedule tracking and performance visualization.

• Ensure compliance with internal scheduling standards, tools, and procedures.

Requirements

• Planning & Scheduling Expertise: Advanced knowledge of scheduling methodologies, tools, and techniques.

• Analytical Thinking: Ability to interpret complex schedule data and provide actionable insights.

• Systems Proficiency: Skilled in Primavera P6, MS Project, Excel

• Communication: Strong written and verbal communication skills; able to present schedule data clearly to stakeholders.

• Collaboration: Experience working in cross-functional and international teams.

• Quality & Accuracy: High attention to detail and commitment to data integrity.

• Leadership: Ability to lead planning efforts and support less experienced colleagues.

• Master’s degree in Engineering, Project Management, Business, or related field.

• Fluent spoken and written English at B2 level or higher.

• Several years of experience in project planning and scheduling roles.

• Experience in a global or regional corporate environment.

• Exposure to infrastructure, energy, engineering, or consulting sectors is a plus.

• Familiarity with project management frameworks (e.g., PMI, AACE).

• Experience managing and administering Oracle Primavera P6, Experience in multi-user project environments, including configuration of EPS, OBS, calendars, resources, and activity codes would be an advantage

Why Join Amentum’s IDS Team?

• Be part of a fast-growing service line in Poland with opportunities to shape processes and influence project success.

• Work on high-impact, high-visibility projects.

• Collaborate with international experts across engineering, project management, and project services.

• Grow your career within a global organisation that supports professional development and technical excellence.

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: