Egis
Senior Principal Mechanical Engineer - Water / Wastewater
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Senior Principal Mechanical Engineer – UK Water/Wastewater
Location: London | Bristol | Manchester (Hybrid) Focus Areas: Water | Wastewater | Biosolids/Sludge | AMP 8 | SROs | MEP-Led Team
Shape the Future of Water Infrastructure with Egis
Egis is one of the world’s leading MEP infrastructure groups, backed by a global team of over 23,500 experts. Specialising in intelligent, sustainable infrastructure, the company tackles climate challenges while strengthening community resilience. As part of its fast-growing UK Water team, the role offers an agile, high-impact environment with clear pathways for progression and immediate outcomes.
About the Role
The UK water sector is investing heavily in modernisation, and Egis is expanding its Water Business to deliver transformative change. This opportunity invites high-calibre mechanical engineers to join a collaborative multidisciplinary team, shaping novel and sustainable water/wastewater treatment solutions for national projects.
This is a unique chance to:
- Accelerate growth of Egis’ UK mechanical engineering capability as it expands into this burgeoning sector.
- Pioneer innovative delivery approaches, including digital design, BIM, automation, and data-driven decision-making.
- Lead agile yet high-impact projects while collaborating with process, contractual, construction, and client stakeholders.
Key Responsibilities
- Lead the mechanical discipline within UK water/wastewater projects, acting as a senior sub-lead or technical authority across design, commissioning, and handover.
- Define and enforce mechanical design standards, reviewing technical requirements, risk processes, digital workflows, and quality frameworks.
- Drive high-value deliverables, including equipment strategies, contractor submissions, and multidisciplinary collaboration with civil, EICA, construction, and operational teams.
- Champion technical workshops, optioneering/bid strategies, design reviews, and constructability/maintainability assessments for senior stakeholder engagement.
- Embed modern methodologies, such as:
- BIM/3D coordination
- Hydraulic and complex plant analysis
- Standardised design and supplier integration
- Data-driven decision-making
- Automation and digital risk reduction
- Provide strategic oversight to project managers on technical risk, scope, resourcing, programme, budget control, and change management.
- Grow the UK mechanical team via recruitment, mentorship, succession planning, and professional development.
- Support bid development, marketing, client cultivation, and business growth strategies for Egis’ evolving UK water portfolio.
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Requirements
Minimum Qualifications & Experience
- Qualification: BEng/MEng (or equivalent) in Mechanical Engineering.
- Status: Chartered or Incorporated Engineer status (e.g., via the Institution of Mechanical Engineers/IMechE).
- Experience: 10–12+ years in mechanical engineering design, with a focus on:
- Water/wastewater/biosolids, sludge or oil & gas processing engineering (deep technical expertise required).
- Complex project leadership, ensuring technical rigour across:
- Pumps, pipework, valves
- Tanks, packaged treatment plant
- Hydraulics, lifting systems, sustainability & maintainability
- Regulatory Knowledge: Extensive understanding of:
- UK water sector frameworks (e.g., asset standards, CDM 2015, safety-by-design, environmental compliance).
- Standard delivery models (e.g., NPA, contractor design packages, EPC).
- People Management: Proven experience in mentoring, line management, and professional development.
- Stakeholder Leadership: Strong senior-level technical authorities with experience in client workshops, cost estates, and project direction influence.
- Commercial and Delivery Skills:
- Scope development, cost estimation, programme management, risk governance, and value engineering.
- Change control mechanisms and contractorNellcollaboration frameworks (negotiation, contract prioritisation).
- Digital Innovation: Evidence of advanced (not entry/intermediate) digital workflows, including BIM/MEP coordinated delivery, hydraulic simulation, automation, or process optimisation.
Desirable (Not Mandatory) but Valued
- Leadership Experience: Prior roles as discipline lead, design manager, or associate director (consultancy/construction sector).
- UK Water Sector Deep Engagement: Confirmed networks with key clients or experience in:
- Bid processes, account growth, and strategy refinement (on-shoreable work).
- Digital optimisation (e.g., operational intelligence, modular engineering, production energy/carbon assessment).
- Governance-Focused Roles: Contribution to standardisation frameworks, technical governance, or QA/quality initiatives across design teams.
- Team Development: Experience leading scaling efforts (e.g., capability planning, skills mapping, and team culture creation during growth phases).
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Note: Candidates must hold UK Work Rights to be considered.
Additional Information
Benefits & Cultural Advantages
- Accelerated career growth within a high-impact, scaling business.
- Top Employers 2025 accreditation (recognised globally) and investing in exceptional practices.
- World leader in green infrastructure – partnering with governments and corporates to deliver sustainable solutions.
- Leadership-level remuneration (competitive salary + bonus potential).
- Flexible and hybrid working policy tailored to individual needs.
- 26+ days annual leave plus public holidays.
- Professional development support, including Chartership packages, and global mobility as work permits allow.
- Culture: Supportive, inclusive, people-first organisational approach – rooted in sustainability and societal impact.
Why Join Egis?
Trade Your Expertise for Sustainable Impact – This role offers a chance to reshape future-proof water infrastructure across the UK. By joining Egis, you’ll:
- Enrich global communities through better-designed systems.
- Apply cutting-edge technology to wavewater resilience and climate challenges.
- Grow professionally in an entrepreneurial, high-energy environment.
About the Egis Foundation
Egis’ philanthropic arm employs action-focused strategies to combat the climate crisis, prioritising education and social inclusion. Through the Foundation, every employee contribution translates into real-world impact—proving that work not only advances infrastructure but the broader world as well.
Diversity & Inclusion Promise
Egis welcomes applicants from diverse backgrounds. Decisions are solely based on alignment with essential criteria, suitability for the role, and experience. Equal opportunity is a core tenet, ensuring our workforce reflects the communities we serve.
- No age, disability (reasonable adjustments available), gender, gender identity, religious,. ethnic, or other protected characteristic will influence assessment.
- At Egis, everyone is valued, heard, and celebrated.
Ready to Lead and Shape Tomorrow’s Water Systems? Apply now.
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