Our Vacancy# Senior Planner/Scheduler* Defence* Permanent / Project Management* Helensburgh* United Kingdom* 26/01/26* On site* ShareThe UK’s nuclear sector has entered a renaissance, with Nuclear Energy now a vital component as the country moves towards a target of Net Zero. Assystem provides critical support to this mission, accelerating the decommissioning and remediation of our legacy assets with a view to enabling a swifter energy transition, in parallel overcoming some of the largest engineering and environmental challenges of our generation. As a Global top 3 independent nuclear engineering organisation, Assystem is active across the full decommissioning lifecycle. In the UK, we work across the Civil and Defence nuclear estates, pioneering agile and fit-for purpose, customer-focused solutions, drawing on our established pedigree for delivery engineering excellence. Assystem have a proud heritage gained over decades both in the UK and overseas, (delivering, supporting, managing) some of the most complex engineering projects in decommissioning, repurposing legacy assets and key new build projects such as Hinkley Point C.## Job Description**Your Mission:**Infrastructure project delivery is a challenging environment, with interdependencies between a number of programmes and projects against the need to maintain the military outputs of an operational naval base. The candidate will be required to deliver at pace and demonstrate effective application of programme and project management skills, tools and techniques.The Schedule/planning coordinator role is responsible for developing, maintaining and communicating the client project interface. This role as the HMNBC Planning interface will work collaboratively with key planners to ensure the Programme integrated plan including key milestones; critical dates and interdependencies are captured, agreed and delivered into the client Integrated Plan.The role will work with a wide and varied range of Stakeholders, including Planning and Risk Managers, to identify risks, potential mitigations and opportunities to generate schedules and succinct reports which support informed decision making to add clarity and value to the client programmesKey Responsibilities* Act as the **customer and primary interface** for the major customer Programme Integrated Planning* Review, analyse, and **challenge Programme schedules and plans** to ensure they are robust, realistic, and aligned to HMNBC priorities* Lead and support **integrated planning reviews** with planning leads* Identify, challenge, and manage **risks, issues, and opportunities**, supporting development of effective mitigation plans* Assess and communicate **Programme impacts on the Integrated Plan*** Work closely with Planning and Risk stakeholders to ensure alignment and integration* Submit **accurate plans** for inclusion in the Base Integrated Plan, in line with agreed milestones* Ensure the **Baseline Change Process** is correctly applied and governed* Track and report **mitigation actions**, progress, and key issues* Represent the key project at meetings, reviews, and working groups* Liaise with **MoD, OGDs, industry partners, consultants, and contractors** as required* Provide **clear progress updates and reports** to client governance forumsExperience & SkillsEssential* **5+ years’ experience** in a scheduling / planning role* **Primavera P6 Practitioner** (hands-on user)* Strong knowledge of **planning & scheduling processes**, including **baseline change control*** Ability to **analyse complex data** and develop a clear, big-picture view* Skilled at processing detailed information and **identifying trends*** Strong **organisational and leadership** capabilities* Proven experience in **delivery management and stakeholder engagement*** Confident user of **Microsoft Office and IT tools**Desirable* **In-depth industry knowledge*** Ability to **communicate effectively at executive level*** Agile mindset with the ability to **adapt to change*** Experience planning in **complex, live operational environments*** Experience working in **highly collaborative, multi-stakeholder settings*** Background as a scheduler/planner in a **government or public-sector delivery environment** (desirable, not essential)**QUALIFICATIONS & TRAINING*** Primavera P6 Practitioner **(Essential)*** APM Project Management Qualification* PRINCE 2 Practitioner* Managing Successful Programmes Practitioner* Management of Risk (MoR)* Membership of Relevant professional body* Pension scheme (8% company contribution / 4% personal contribution)* 25 days’ paid annual leave + bank holidays + option to buy or sell days* Professional fees reimbursed* Flexible working* Employee referral schemeThis role is primarily based at Helensburgh and due to the nature of the role will have access to restricted information which will require a sole UK National Citizen to meet the necessary security criteria.There is a requirement to be onsite at Helensburgh to facilitate workshops, routine meetings and site visits and to engage with the wider NBCC team, this currently is a minimum of ***2 days per week*** but could require more at specific times of the programme and should be flexible to facilitate this.There will be a requirement to attend meetings and workshops at Kentigern House in Glasgow, potentially occasional travel to Abbey Wood in Bristol and external offices of contractors where necessary.Umbrella Contractor or Permanent Staff positionWe 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. #J-18808-Ljbffr