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Senior Planner

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Job Description

Assist the Planning Manager to develop and monitor the programme, ensuring compliance with the SCS planning standards and HS2 requirements to provide a safe, efficient and cost effective programme meeting all required access dates, milestones and key dates. Reporting to the Planning Manager.

Flexible working: We welcome you to ask about the flexibility you need. This might be part-time, remote working, or compressed hours for example. Anyone who applies for a role can ask about flexibility at interview. In return, we will explore what is possible for the role.

Responsibilities

Main Responsibilities

  • Assist the Planning Manager in development of the Asset Structure, Work Breakdown Structure (WBS), calendars and dates to be used by SCS, aligned with the Cost Break Down Structure (CBS) and Employer`s Data Dictionary.
  • Help to develop cost and resource loaded construction programmes during ECI Stage One with submission in accordance to the required delivery milestones.
  • Ensuring the Construction programme meets all required access dates, milestones and key dates in compliance with the Employer's Planning requirements, contract data and works information.
  • Contribute to assessment of programme risks and programme risk analysis, including development and implementation of mitigation measures.
  • Interfacing with other functional teams including, but not limited to: BIM Team, design team, estimation and construction execution.
  • Adhering to BIM team requirements and integration of the construction programme into the BIM model.
  • Progress monitoring and regular updating of the construction programme during Stage Two, including forecasting of potential problem areas and proposing mitigation measures to the Project Manager.
  • Cooperation with the Project Controls Manager, Reporting Manager and Change Management in all related construction programme matters.
  • Helping to liaise with the client's construction planning team, stakeholders and with other works packages to communicate the SCS Construction Planning approach and to ensure sharing of best practice, innovation and continuous improvement.
  • Pursuing excellence and continuous improvement of the SCS construction planning approach, modification of standard processes and procedures for effective and continuously improvement.

The Ideal Candidate

  • Degree in civil engineering or an appropriate professional qualification
  • Prior experience in planning function in civil engineering projects
  • Knowledge of the development and implementation of Asset structures, Planning Standards, WBS and Planning processes in a BIM environment.
  • Competence in Primavera P6 and Tilos
  • Knowledge of Safety, Environment and Risk Management
  • Strong communication skills

About The Company

The role will work on the HS2 project. HS2 is the UK's new high speed rail network. It will be a catalyst for economic growth across Britain, freeing up space on the existing railways and connecting 8 out of the UK's 10 biggest cities with fast, reliable and frequent high speed services

The Skanska | Costain | STRABAG (SCS JV) is delivering the HS2 London Tunnels Contract. Scope of works includes twin-bored tunnels (TBM), SCL tunnels, shaft sinking, bridge demolition and reconstruction, services diversions, earthworks and the construction of site compounds.

You'll be a welcomed member of the wider team, with opportunities to take on additional responsibility, join one of our networks for women, military or LGBT+ staff, and participate in cultural and social events with the local community (e.g. as a STEM ambassador).

Your personal and professional development is important to us. We welcome a discussion about how we can support you with further study, or professional membership or attainment for example.

HS2 - working with Skanska, Costain and STRABAG, closely monitors job applications, to ensure an inclusive recruitment process. To ensure we are able to maintain this, and to recruit a diverse workforce, we require candidates to complete the diversity form as part of their application so we are able to monitor and improve our approach to diversity. Please note, all responses are anonymous and we will not share any of your data with other parties. All data will be held securely, (as stated within the Data Protection Act 1998) and will be reported to HS2.

Qualifications

Essential

  • HNC/HND, degree qualified or experience in a planning related discipline

Desirable

  • APM Project Management Qualification
  • APMG International Project Planning and Control Practitioner or equivalent
  • PMI Scheduling Professional (PMI-SP)

About Us

Costain helps to improve people's lives with integrated, leading edge, smart infrastructure solutions across the UK's energy, water, transportation and defence markets. We help our clients improve their business performance by increasing capacity, improving customer service, safeguarding security, enhancing resilience, decarbonising and delivering increased efficiency. Our vision is to be the UK's leading smart infrastructure solutions company. We will achieve this by focusing on blue chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements. We offer our clients leading edge solutions that are digitally optimised through the following five services which cover the whole lifecycle of their assets: future-shaping strategic consultancy; consultancy and advisory; digital technology solutions; asset optimisation and complex programme delivery. Our culture and values underpin everything we do.

Costain appreciate the time and effort taken when applying for one of our positions but, due to the high volume of responses, we are unable to provide individual feedback on candidates at application phase.

We do share individual feedback following an interview.

A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer.

It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people.

For more details please go to the Disability Confident website:
https://www.gov.uk/government/collections/disability-confident-campaign

Senior Planner

Costain
London, UK
Full-Time

Published on 17/04/2026

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