Jobs in Upper Biggin

Senior Mechanical Design Engineer

Location: Annesley (Hybrid / Flexible)
Sector: Water / Infrastructure
Employer: Leading Tier 1 Contractor

An opportunity has arisen for a Senior Mechanical Design Engineer to join a growing engineering team within a leading Tier 1 contractor delivering major water and infrastructure projects across the UK.

This is a key technical position, responsible for delivering high-quality mechanical design solutions across the full project lifecycle, from concept through to detailed design and construction support. You will play a pivotal role in ensuring designs meet regulatory, safety, and commercial requirements while contributing to multi-disciplinary project delivery.

Key Responsibilities

Produce and review mechanical design deliverables in line with project requirements and industry standards
Act as a technical checker, ensuring quality assurance and compliance of design outputs
Develop efficient, cost-effective solutions balancing capital and operational expenditure
Ensure designs are safe, buildable, and aligned with operational requirements
Integrate mechanical designs with other disciplines (civil, electrical, process, etc.)
Collaborate closely with Design Managers, Principal Engineers, and project teams
Provide technical support for:Participate in design reviews, risk assessments, and client meetingsContribute to maintaining robust design governance and quality procedures

Procurement and supply chain activities
Construction and site delivery phases

Provide technical guidance and mentoring to junior and graduate engineers
Support team development and progression toward professional accreditation (e.g., IMechE, ICE)
Contribute to continuous improvement, innovation, and knowledge sharing across the discipline
Ensure designs comply with:Support design assurance processes and regulatory compliance across projects

Relevant H&S legislation and CDM regulations
Industry standards and best practices
Internal quality management systems

About You

Degree in Mechanical Engineering (or equivalent)
Chartered Engineer status (or working towards) is desirable
Significant experience in mechanical design within infrastructure projects
Background in water and/or wastewater sectors preferred
Experience working in a contracting or consultancy environment
Strong track record of delivering designs within multi-disciplinary teams
Strong understanding of mechanical systems relevant to infrastructure (e.g., pumping systems, treatment plant equipment, pipework)
Knowledge of relevant standards, regulations, and H&S requirements
Experience reviewing subcontractor or supplier design documentation
Commercial awareness and ability to consider whole-life cost impacts

If you’re a motivated mechanical design engineer looking to take the next step in your career and contribute to complex infrastructure projects, we’d love to hear from you