Senior Planner

Location: Hertfordshire
Sector: Water

We're hiring a Senior Planner to join our client's growing water infrastructure team in Hertfordshire. Reporting to the Senior Planning Manager, you'll be responsible for developing, managing, and reporting on tender and contractual programmes, ensuring projects are delivered in line with key milestones and objectives.

Working closely with project and commercial teams, you'll oversee multiple project schedules, monitor progress and costs, identify and mitigate risks, and drive programme performance. You'll also play a key role in mentoring junior Planners, sharing best practice and supporting the continued development of the planning function.

• Work alongside the estimating team to produce tender programmes that are realistic, achievable, and compliant with project requirements.
• Develop, maintain, update, and submit programmes in accordance with contractual obligations.
• Support the delivery of collaborative planning workshops.
• Lead the development and implementation of 4D construction planning.
• Create and maintain baseline programmes, monitoring project progress against them.
• Liaise with project teams to ensure alignment on planning assumptions, methodologies, and outputs.
• Identify key risks and opportunities throughout the planning process.
• Collect, analyse, and distribute progress information, including reasons for delays or programme variances.
• Monitor changes to project scope and update programmes where required.
• Attend project and progress meetings, presenting programme updates and performance information.
• Conduct site visits to gather accurate progress information.
• Escalate programme concerns and planning issues to the Senior Planning Manager and site management teams.
• Produce and distribute regular look-ahead programmes.
• Ensure an accurate As-Built programme is completed at project close-out.
• Maintain an understanding of site operations, methodologies, and associated project costs.
• Record the impact of changes on site activities and contractual programme requirements.
• Support the preparation of monthly progress reports in line with client requirements.
• Build and maintain strong working relationships with the Senior Planning Manager, Project Managers, Commercial Team, and client representatives.
• Assist in the administration and management of Primavera P6.
• Provide planning software training and support to new users when required.

• Experience planning civil engineering and M&E projects.
• Knowledge of production control and collaborative planning techniques.
• Good understanding of current HSE practices and a valid CSCS card.
• Experience working with NEC3 and/or NEC4 contracts.
• Strong Microsoft Office and software application skills.
• Proficiency in Primavera P6 planning software.
• Excellent communication and stakeholder management skills.
• Ability to identify project risks and opportunities.
• Comfortable working in a fast-paced project environment.
• Able to manage tight deadlines and competing priorities.
• Strong focus …

• Previous experience within the water industry.
• Site-based engineering experience.
• Releva