Senior Planner / Scheduler (Integrated Delivery Solutions)

About the role

Amentum is building a new Integrated Delivery Solutions (IDS) team and is looking for a Senior Planner / Starszy Specjalista / Starsza Specjalistka ds. Planowania i Harmonogramów. The selected candidate will be employed by Critical Mission Services Sp. z o.o., part of Amentum. The role supports the delivery of complex projects by developing and maintaining integrated project schedules, analysing performance data and collaborating with cross-functional teams. It works independently with minimal guidance and may lead project planning or cover ongoing scheduling across several projects or programs.

Key responsibilities

• Develop and maintain detailed project schedules using Primavera P6 and MS Project, aligned with scope, milestones and deliverables.
• Apply planning and scheduling expertise and basic knowledge of cost control and risk management to support integrated project controls.
• Solve complex scheduling challenges and take ownership of planning activities, leading scheduling within broader projects or programs.
• Mentor junior planners and schedulers and share expertise.
• Collaborate with project managers, engineers, finance and other stakeholders on schedule integration.
• Evaluate schedule impacts and run scenario planning for change and risk management.
• Monitor and report schedule performance metrics such as earned value, schedule variance and forecast accuracy.
• Contribute to digital dashboards and reporting tools for schedule tracking.
• Ensure compliance with internal scheduling standards and drive continuous improvement.

Required profile

• Master's degree in Engineering, Project Management, Business or a 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 is a plus.

Required skills

• Advanced knowledge of scheduling methodologies, tools and techniques.
• Proficiency in Primavera P6, MS Project and Excel.
• Familiarity with project management frameworks such as PMI and AACE.
• Advantageous: experience managing Oracle Primavera P6, multi-user environments and configuring EPS, OBS, calendars, resources and activity codes.

What we offer

• Full-time employment with a competitive salary, benefits package including medical care, life insurance and a cafeteria with co-financed sports activities.
• Flexible working hours (7:30-10:00 start) and short Fridays (8.5 hours Monday to Thursday, 6 hours on Friday).
• Hybrid or stationary working model, modern office, and participation in global projects.
• Training in industry-leading tools and personal development opportunities.