Senior Mechanical Engineer

Envirogen Group UK Limited; High Wycombe; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Private healthcare

Purchase extra annual leave

Career development

Job summary

Envirogen Group UK Limited seeks a Senior Engineer to own end-to-end delivery of multi-million-pound water and wastewater projects in the UK, with hybrid or remote working options for highly qualified professionals.

The role drives technical design, governance, and vendor collaboration across the lifecycle from concept to implementation, mentoring the core engineering team and supporting commercial proposals.

Qualifications

• Bachelor’s (Mechanical, Chemical or Civil) engineering degree.
• Demonstrated track record in industrial water, wastewater or fluid processes.
• Outstanding problem solving, communication, and customer-facing skills.

Responsibilities

• Own end-to-end delivery of capital projects (£1M–£20M).
• Mentor core engineering team to high technical standards.
• Lead design governance, project documentation, BOMs and vendor data.
• Support sales with cost, labour and subcontractor estimates for proposals.

Skills

Project leadership

Cross-functional collaboration

Technical mentoring

Excellent communication

Education

Bachelor of Science/Engineering (Mechanical/Chemical/Civil)

Chartered Engineer (CEng)

Tools

AutoCAD

P&ID review

Instrumentation specifications

Job description

Take the Lead on Multi-Million Pound Sustainable Engineering Projects!

At Envirogen Group, we deliver advanced water solutions as a premier Lifecycle Performance Company. We are seeking a high-calibre Senior Engineer to join our core engineering team in the UK though for highly accomplished professionals, flexible hybrid or remote working arrangements will be fully considered.

This critical role offers an exceptional opportunity to spearhead the end-to-end lifecycle of multi-million-pound industrial water and wastewater treatment systems, transitioning seamlessly from high-level conceptual design to impactful field deployment.

We value entrepreneurial execution, offering a uniquely flat structure where exceptional performance translates directly into accelerated professional development. For an ambitious engineer, this represents an unparalleled launchpad to deploy your expertise, drive visible industrial outcomes, and grow exponentially alongside our expanding UK footprint..

The Role: Drive Capital Project Success

As a Senior Engineer you will hold complete technical ownership over the execution and delivery of high-impact, capital engineering infrastructure ranging from c£1M to £20M. Partnering seamlessly with our Project Management team, you will translate complex challenges into operational, high-performance systems.

Key Responsibilities:

• Lead Advanced System Design: Spearhead the end-to-end design lifecycle of multi-million-pound treatment systems, serving as the technical anchor for major engineering deliverables from initial concept to final execution.
• Mentor & Develop Talent: Coach, mentor, and elevate the capabilities of the core engineering team, fostering a culture of technical excellence, accountability, and continuous professional growth.
• Engineering Governance & Review: Serve as the definitive authority for reviewing and approving critical project documentation, including complex P&IDs, fabrication drawings, electrical schematics, and comprehensive Bills of Materials (BOM).
• High-Performance Equipment Selection: Execute advanced hydraulic calculations, precise pump design and selection, and comprehensive valve and instrumentation specifications to guarantee system performance and full contractual compliance, while supporting the sales team with precise cost, labour, and subcontractor estimates for commercial proposals.
• Strategic Sourcing & Vendor Governance: Author rigorous technical data sheets, initiate RFQs, collaborate closely with key vendors, and execute data-driven procurement determinations to maintain aggressive project velocity.
• Cross-Functional & Commercial Leadership: Drive critical customer- and vendor-facing technical reviews, while partnering seamlessly with the sales team to deliver precise cost, labour, and subcontractor estimates for winning commercial proposals.

Why Youll Thrive at Envirogen

• Exceptional Total Rewards: We offer a highly competitive base salary complemented by a comprehensive health, wellness, and retirement benefits package, alongside an impactful, performance-driven Project Incentive Plan that directly rewards your engineering successes.
• An Elite, Flat Culture: Work alongside leading industry experts in a collaborative, un-siloed environment that actively rejects bureaucratic layers. Here, your technical voice is empowered, and your individual contributions directly shape project outcomes.
• Global Project Horizons: Expand your engineering mastery and leadership footprint by delivering on exciting, technologically diverse industrial water and wastewater systems across the UK and key international markets

Requirements

Professional Qualifications

• Academic Foundation: A Bachelor of Science or Bachelor of Engineering degree, with a strong preference for a discipline in Mechanical, Chemical, or Civil Engineering.
• Proven Track Record: A demonstrated history of engineering success and technical achievement within the industrial water, wastewater, or fluid process industries.
• Professional Attributes: A highly organized, self-directed professional who thrives in a collaborative, flat organization; possesses top-tier problem-solving acumen, exceptional communication skills, and the polished presence required for high-stakes, customer-facing technical engagements

Ready to Build the Future of Water?

Benefits

• Supportive and collaborative culture

• Opportunity for development and career progression

• Private healthcare

• Purchase extra annual leave