Principal Mechanical Engineer – Water SectorLocations: Southampton, Brighton or KingshillHybrid: 2–3 days per week in the officeSalary: £70-75kWith major AMP8 investment and strong regional growth, Advance TRS are working with a leading consultancy who are expanding their engineering team. They are seeking a Principal Mechanical Engineer to step into a regional lead role—combining technical excellence with people leadership and mentoring responsibility.What You’ll DoAct as a regional technical lead for mechanical design, influencing project direction and best practiceLead mechanical design across the full lifecycle — from feasibility and optioneering to detailed design and construction supportDeliver innovative solutions for treatment plants, pumping stations, conveyance systems and wider water infrastructureMentor, support and develop junior engineers, with opportunities to take on formal line managementCollaborate closely with project managers, designers, clients, contractors and supply chain partners to drive positive outcomesAbout YouDegree-qualified Mechanical Engineer (Chartered or working toward)Strong background in detailed design within the water industryExperience working with delivery contractors is beneficialNatural leader with excellent communication skills and a passion for developing othersComfortable balancing hands-on technical work with team leadershipWhat’s on OfferHybrid working: 2–3 days per week in the officeSupportive, friendly and collaborative team cultureCompetitive salary, pension, holidays, private medical insurance, discounted gym membership and moreFlexible working arrangementsMeaningful, exciting projects across the UK & IrelandIndustry-leading training, development and paid professional membershipsA workplace recognised for excellence and sustainabilityApply now or contact Molly Brown for more information.