Principal Engineer (Major Projects)

JR United Kingdom; Rickmansworth; Hybrid; GBP 52,000 - 75,000; Full time

Job summary

A leading water and wastewater services provider in the UK is seeking a Principal Engineer to lead technical teams on major infrastructure projects. This role involves overseeing significant investments while ensuring compliance with regulations and fostering stakeholder relationships. The ideal candidate will have a strong engineering background and leadership experience, with opportunities for growth in a critical sector.

Benefits

Private medical healthcare

26 days' holiday (rising to 30 with service) + bank holidays

Defined contribution pension (up to 12% employer contribution)

Annual personal medical assessments

Extensive employee benefits and wellbeing hub

Qualifications

• Experience in delivering major capital projects (ideally up to £100m).
• Valid driving licence and access to personal transport.
• Proven leadership and team management background.

Responsibilities

• Lead and plan design activities for infrastructure projects.
• Oversee technical assurance of contractor designs and manage changes.
• Build strong relationships with stakeholders and regulators.

Skills

Analytical skills

Decision-making

Communication

Leadership

Risk management

Education

Degree in civil, mechanical, or related engineering discipline

Chartered status or working towards it

Master's degree (desirable)

Job description

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Client:

Advance TRS

Location:

rickmansworth, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

2

Posted:

09.07.2025

Expiry Date:

23.08.2025

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Job Description:

Job Title: Principal Engineer - Major Infrastructure Projects
Salary: £52,000 to £75,000 (dependent on experience) + £5,800 car allowance
Location: Hybrid - Slough, Maple Lodge, Crossness and/or Swindon
Type: Permanent, hybrid (up to 3 days/week on-site or in-office)

About the Role:
Our client is seeking experienced Principal Engineers to lead technical teams and help modernise major Water Treatment Works across their network. This is a rare opportunity to shape the future of UK water infrastructure through high-value capital projects, some worth up to £300 million.

About the Client:
Our client is the UK's largest water and wastewater services provider, serving over 16 million people daily. They are on a mission to build a sustainable future for customers, communities, and the environment through ambitious investment in infrastructure and innovation.

Key Responsibilities:

• Lead and plan the design activities for a portfolio of infrastructure projects
• Oversee technical assurance of contractor designs and manage design changes
• Support project teams during asset commissioning and handover
• Act as the main contact for CDM regulations and Principal Designer duties
• Conduct site inspections and collaborate to improve health and safety outcomes
• Manage and mitigate risks while adding value across project stages
• Build strong relationships with stakeholders and regulators
• Apply commercial awareness to guide project delivery strategies

What Our Client is Looking For:

• Degree in civil, mechanical, or related engineering discipline (Master's desirable)
• Chartered status or working towards it
• Experience in delivering major capital projects (ideally up to £100m)
• Strong analytical and risk-based decision-making abilities
• Exceptional verbal, written, and interpersonal communication skills
• Proven leadership and team management background
• Valid driving licence and access to personal transport

What Our Client Offers:

• Salary up to £75,000 (DOE)
• Private medical healthcare
• 26 days' holiday (rising to 30 with service) + bank holidays
• Defined contribution pension (up to 12% employer contribution)
• Annual personal medical assessments
• Extensive employee benefits and wellbeing hub
• Must have the right to work in the UK
• Must hold a valid UK driving licence

Opportunity for Growth:

• Fast-tracked career progression in a nationally critical sector
• Work on one of the UK's most significant infrastructure programmes
• Gain cross-functional experience within a diverse and forward-thinking organisation
• Be part of a major transformation programme shaping the future of water in the UK

We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.