Senior Project Engineer- HV Transmission

Company: Costain Group PLC

Location:

Posted: April 17th, 2026

Job Description

At Costain our Energy Sector helps our customers transition to clean energy, while providing practical solutions to improve the efficiency, sustainability and resilience of existing infrastructure. We focus on delivering engineering and construction solutions to support the UK’s transition to a low‑carbon economy. We deliver engineering services in production, processing, transmission and distribution services, and provide professional and managed services through construction focusing on three key customer drivers: Energy Transition, Energy Resilience and Energy Connectivity.

This Senior Project Engineer will be focused on HV transmission and distribution. Alongside the Project Director/Senior Project Manager, the individual will have overall accountability for successful project delivery including initiation, planning, design, delivery, monitoring, commissioning and handover/close out. The individual will support in formalising and specifying an engineered delivery solution, brief out the solution to the working party and ensure it is completed through effective management and leadership. They will manage and care for the people delivering the works while monitoring compliance to customer/project requirements, objectives and constraints, time, cost, quality and safety.

At Costain, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you—even if you don’t tick every box. Your unique skills and experiences could be exactly what we need.

Responsibilities

Design

Governance

Commercial & Contract

Health Safety & Environmental

Risk, Issue & Opportunity

Qualifications

Desirable

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

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