Senior Planner at Assystem in United Kingdom

companyDescription Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. jobDescription The Opportunity As a Senior Planner/ TOC Schedule Lead within Project Controls, you’ll play a key role in driving performance across a major programme area. Working within the PMO or Delivery Programmes, you’ll lead on scheduling excellence- developing, integrating, and assuring complex project schedules while supporting high-quality decision-making across the project. You’ll be accountable for a defined scope, ensuring all schedule activities are delivered efficiently, in line with governance, standards, and deadlines. This role requires a proactive, solutions-focused mindset, with a strong emphasis on innovation, collaboration, and continuous improvement. Key Responsibilities Lead the development and delivery of integrated schedules within your area Manage and assure outputs from direct reports and supply chain schedulers Review supplier schedules for compliance, quality, and alignment with contract requirements Identify key interfaces, risks, opportunities, and mitigations Support programme reporting including progress updates, forecasting, and variance analysis Deliver accurate and timely month-end reports (IWS, baseline, performance) Lead schedule workshops, peer reviews, and deep dives on critical issues Collaborate with senior stakeholders, PMs, and multidisciplinary teams Promote best practice and position this project as an industry leader in schedule management About You You’ll bring proven experience as a Senior Scheduler on large-scale, complex infrastructure projects, with the confidence to challenge, influence, and lead across multiple stakeholders. Essential Skills & Experience Degree (or equivalent) in a relevant discipline (engineering, construction, finance, project management, etc.) Advanced planning and scheduling expertise Strong experience with Primavera P6 and schedule quality tools (e.g. Acumen Fuse) Ability to build schedules from first principles and critically assess supplier programmes Deep understanding of schedule integration, hierarchy, and change control Commercial awareness, including NEC and FIDIC contracts Experience working with supply chain partners and senior project stakeholders Strong analytical, problem-solving, and communication skills Ability to manage multiple priorities and deliver to deadlines Desirable Knowledge of APM or similar project management frameworks Experience in matrix organisations Membership of AACE, PMI, APM or similar Familiarity with Power BI or other analytics tools Nuclear sector experience qualifications additionalInformation NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.