Associate Mechanical Engineer – Water Infrastructure

Cezanne HR; City of London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A major engineering firm in the UK is seeking an experienced Associate Mechanical Engineer to lead multidisciplinary design teams for water infrastructure projects. This role involves overseeing project delivery, ensuring technical excellence, and managing client relationships. The ideal candidate will have over 10 years of experience in the field, a degree in Mechanical Engineering, and be chartered or working towards chartership. This position offers a competitive salary and a hybrid work model.

Benefits

Competitive Salary

Hybrid Work Model

Professional Development and Chartership Support

Generous Annual Leave

Qualifications

• 10+ years’ experience delivering mechanical designs for water, wastewater, or utilities projects.
• Demonstrate competence in mechanical and instrumentation design in the water/wastewater industry.

Responsibilities

• Lead mechanical design and delivery for water and utility infrastructure projects.
• Prepare technical specifications and tender documentation.
• Monitor and report on all project progress.

Skills

Excellent communication and leadership skills

Strong knowledge of pump systems

Ability to manage budgets and client expectations

Experience with BIM and digital design platforms

Education

Degree in Mechanical Engineering or related discipline

Chartered Engineer or working towards chartership

Tools

Revit

AutoCAD Plant 3D

Job description

Associate Mechanical Engineer – Water Infrastructure

Company Description

Engineer the Future of Water Infrastructure Systems

At Ayesa, we’re driving innovation in the design and delivery of sustainable water and wastewater infrastructure. Our Mechanical Engineers play a key role in delivering efficient, resilient, and low-carbon engineering solutions across major UK utilities and infrastructure projects.

We’re looking for an experienced Associate Mechanical Engineer to lead design teams, oversee project delivery, and ensure technical excellence across the Water Infrastructure division.

Position

The Opportunity

As an Associate Mechanical Engineer, you’ll lead multidisciplinary design teams in the delivery of mechanical systems for water, wastewater, sewage treatment plants, pumping stations, and network infrastructure. You’ll oversee design coordination, manage client relationships, and support the continued development of Ayesa’s UK Water Infrastructure capability.

Responsibilities

• Lead mechanical design and delivery for water, wastewater, sewage and utility infrastructure projects
• Oversee design management, quality reviews, and integration with civil, electrical, and process disciplines
• Prepare technical specifications, mechanical schedules, and tender documentation
• Assist in appointment of specialist contractors and management of the specialist contractors team contracts to cost, time, quality & safety requirements
• Collaboratively work with the design team, project management team, construction team and supply chain and provide mechanical installation expertise
• Ensure all relevant standards, regulations and codes of practice are adhered to throughout the project life cycle
• Manage the creation of the mechanical installation and procurement strategy to ensure all members of the team are aware of their responsibilities
• Monitor and report on all progress on a weekly and monthly basis, including taking action to maintain delivery to time, cost, quality and safety requirements
• Lead buildability, risk, opportunity and value engineering reviews
• Develop new ways of working, reduce carbon, increase biodiversity, address climate change, and embrace innovations and new digital technologies

Qualifications

What You Bring

Experience & Qualifications:

• Degree in Mechanical Engineering or a related discipline
• Chartered Engineer (IMechE or equivalent) or working towards chartership
• 10+ years’ experience delivering mechanical designs for water, wastewater, or utilities projects
• Demonstrate level of competence in mechanical and instrumentation design in the water / wastewater industry environment
• A good understanding of modular build construction processes and procedures, and experience of mechanical, electrical, instrumentation, control and automation (MEICA) systems
• Experience leading multidisciplinary design delivery within D&B or consultancy environments
• Strong understanding of UK design standards, WIMES, codes, and CDM regulations

Skills & Strengths

• Excellent communication and leadership skills
• Strong knowledge of pump systems, mechanical equipment selection, and plant design
• Ability to manage budgets, resourcing, and client expectations
• Experience with BIM and digital design platforms (e.g., Revit, AutoCAD Plant 3D)
• Collaborative approach to problem solving and design delivery

Bonus Points For:

• Experience with major UK water utilities or regulated frameworks
• Knowledge of sustainable design techniques and low-carbon technologies
• Experience supporting bids and business development activities

Other information

What’s In It for You

• Competitive Salary commensurate with skills and experience.
• Hybrid Work Model (2–3 days from home).
• Flexible Hours 37.5 per week (Core: 10am–4pm Mon–Thu, 10am–3pm Fri).
• Professional Development and Chartership Support.
• Employee Assistance Programme (EAP).
• Sustainability & Innovation-Focused Culture.
• Generous Annual Leave with Additional Days Based on Service.
• We’re Inclusive by Design

Ayesa is proud to be an equal opportunity employer. We value and celebrate diversity in all its forms, including but not limited to age, disability, gender identity, race, religion or belief, sex, sexual orientation, and socio-economic background or neurodiversity. We believe that a diverse workforce fosters innovation and stronger outcomes. We are committed to inclusive hiring practices, providing reasonable adjustments for applicants and employees with disabilities, and ensuring equal access to opportunities for learning, development, and progression across our organisation.