Location
London

Hours
Full Time

Salary
Negotiable

About the Role
Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. With over 34,000 people across more than 30 countries, we are dedicated to improving quality of life by solving complex challenges together. Our Nuclear programmes require strong project and programme controls capability, with planning acting as a key integrator across cost, risk, change, and delivery functions. As a Senior Planner within the Nuclear Business Unit, you will lead the development, integration, maintenance, and assurance of project and programme schedules, ensuring robustness, logic linkage, auditability, and alignment with scope, delivery strategy, governance, and reporting cycles.

You will establish and maintain effective planning standards and controls, own schedule baseline management, progress updates, change impact assessments, and schedule traceability. Driving integration between planning, cost, risk, change, scope, and reporting functions, you will provide schedule assurance and constructive challenge across multiple disciplines and delivery partners. You will lead planning inputs to governance forums, integrated baseline reviews, schedule quality assessments, change control reviews, and performance assurance activities.

Additionally, you will analyse schedule performance, critical path, trends, float, interfaces, risks, and opportunities to provide clear advice on delivery confidence and mitigation strategies. You will coordinate planning inputs to reporting packs, dashboards, senior stakeholder briefings, and governance submissions, translating complex schedule data into concise, evidence-based insight.

You will oversee contract-driven planning activities, support delivery strategy, programme phasing, option development, business case input, investment decision making, and scenario planning through robust schedule analysis. Facilitating planning workshops with multidisciplinary stakeholders, you will agree scope, logic, sequencing, assumptions, dependencies, constraints, interfaces, milestones, and decision points.

As a senior member of the team, you will provide line management, coaching, and development support to planners, champion continuous improvement in planning processes, tools, schedule quality, reporting outputs, and embed lessons learned and good practice across the team. The scope of accountability will be aligned to experience and programme needs, ranging from schedule assurance through to integrated controls leadership.

This role requires candidates who meet UK nationality and security requirements and are eligible to obtain and maintain Security Clearance (SC). You will support confidential clients and work on highly challenging and rewarding programmes requiring strong analytical capability and a structured, governance-led approach.

Experience
- Demonstrable experience leading the development, integration, management, and assurance of project or programme schedules within complex delivery environments.
- Strong working knowledge of planning tools such as Primavera P6, Asta Powerproject, or Microsoft Project.
- Experience applying planning governance, baseline management, change control, progress measurement, schedule quality analysis, and reporting processes.
- Experience reviewing supplier, contractor, or delivery partner programmes within structured contract environments, including NEC or similar contracts.
- Strong understanding of integrated project controls including schedule, cost, risk, change, scope, and reporting.
- Proven ability to engage confidently with multidisciplinary stakeholders, facilitate planning workshops, and support evidence-based decision-making.
- Experience line managing, coaching, mentoring, or supporting the development of planners or wider planning capability.
- Experience in nuclear, defence, energy, infrastructure, or other highly regulated sectors.
- Familiarity with Managing Successful Programmes (MSP), programme lifecycle governance, and programme-level planning approaches.
- Experience using schedule risk analysis, critical path analysis, earned value, or other performance measurement techniques.
- Knowledge of reporting, business intelligence, document control, or data management tools supporting integrated planning and project controls.
- Experience supporting governance, audit, independent assurance, or readiness review processes.
- Strong analytical, problem-solving, and communication skills with the ability to translate complex schedule information into clear delivery insight.

About you
You are a flexible, dynamic individual with a structured, governance-led approach. You have strong analytical capability and the ability to work effectively in complex and highly regulated environments. You are confident engaging with multidisciplinary teams and senior stakeholders, supporting decision-making with clear, evidence-based insights. You are committed to continuous improvement and capable of leading and developing planning teams to build capability and deliver excellence.

Qualifications
- Bachelor’s degree or equivalent experience in planning, project controls, engineering, construction, programme management, or a related discipline.
- Hold, or be working towards, a relevant professional qualification or chartered status such as APM, ACostE, PMI, CIOB, RICS, or equivalent.
- Eligibility to obtain and maintain UK Security Clearance (SC).