Principal Mechanical Engineer

Severn Trent

Principal Mechanical Engineer leading mechanical design for Severn Trent Water’s treatment and clean-water infrastructure projects. Providing technical authority from feasibility through commissioning and handover.

Posted 8/10/2026full-timeCoventry • 🇬🇧 United KingdomLead💰 £48,500 - £65,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in mechanical engineering solutions for water treatment and clean water infrastructure, ensuring compliance with regulatory standards and effective project delivery. Capable of leading multidisciplinary teams and providing technical leadership throughout the design and construction phases.

Highest-signal resume keywords

Mechanical Engineering DegreeChartered Engineer (CEng) StatusWater Treatment Design ExperienceMultidisciplinary Team LeadershipUK Water Industry Standards Knowledge

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mechanical DesignWater Treatment ProcessesDetailed Design DevelopmentRegulatory ComplianceDesign Review CoordinationTechnical Problem SolvingValue EngineeringRisk ManagementConstruction SupportStakeholder Management

Soft Skills

Technical LeadershipMentoringCommunicationCollaborationStakeholder Engagement

Certifications & Qualifications

Chartered Engineer (CEng)

Industry Keywords

Water Treatment InfrastructureBritish StandardsEurocodesDWI RequirementsHealth and Safety LegislationSevern Trent Engineering StandardsALMHAZOP StudiesConstructability ReviewsOperational Integration

About the role

Key responsibilities & impact

Lead the development and delivery of mechanical engineering solutions for water treatment and clean water infrastructure projects
Act as the mechanical engineering technical authority on assigned projects
Provide technical leadership, mentoring, and support to engineers and designers
Develop mechanical solutions for water treatment works, raw water abstraction assets, service reservoirs, booster pumping stations, and clean water storage and distribution facilities
Progress designs through concept, outline, and detailed design stages
Ensure designs meet project objectives, regulatory requirements, budget constraints, and operational needs
Collaborate with Process, Civil, Structural, Electrical, ICA, and Operations teams
Support multidisciplinary design reviews, ALM, HAZOP studies, constructability reviews, and value engineering workshops
Resolve technical interfaces and design challenges throughout project development
Undertake and coordinate mechanical design reviews and approvals
Ensure compliance with British Standards, Eurocodes, DWI requirements, health and safety legislation, water industry standards, guidance, and Severn Trent engineering standards
Support engineering assurance and risk management activities
Provide technical support during construction, installation, testing, and commissioning
Assist contractors and suppliers in resolving technical queries
Support project handover and operational integration

Requirements

What you’ll need

Degree in Mechanical Engineering or a related discipline
Chartered Engineer (CEng) status or demonstrable progress towards chartership
Ample experience within water treatment and clean water infrastructure projects
Strong knowledge of UK water treatment processes, assets, and standards
Proven experience delivering outline and detailed mechanical design for complex infrastructure projects
Experience leading multidisciplinary engineering teams
Excellent communication and stakeholder management skills

Benefits

Comp & perks

28 days holiday + bank holidays
Ability to buy/sell up to 5 days per year
Annual bonus scheme of up to £2,250, subject to eligibility
Leading pension scheme — employer doubles your contribution up to 15% when you contribute 7.5%
Sharesave — chance to buy Severn Trent Plc shares at a discounted rate
Dedicated training and development with the Academy
Electric vehicle scheme
Retail offers
Family friendly policies
Two paid volunteering days per year