16 jobs in I-PAYE Limited

Mechanical Design Engineer - Fully Remote - Outside of IR35

Job Title: Mechanical Wastewater Design Engineer

Department: Engineering / Water & Wastewater

Reports To: Senior Design Manager / Director

Location: Remote

Engagement: Outside of IR35

To design, specify, and support the delivery of mechanical systems and equipment for wastewater treatment facilities, pumping stations, and related infrastructure. The role ensures designs are safe, sustainable, cost-effective, and compliant with applicable standards, contributing to the efficient treatment and management of wastewater.

• Design mechanical systems including pumps, valves, pipelines, blowers, and compressors
• Develop P&IDs, GA drawings, and technical specifications
• Conduct hydraulic calculations and energy efficiency assessments
• Collaborate with multidisciplinary teams across project stages
• Ensure compliance with WIMES, BS EN, and CDM regulations

• Degree-qualified Mechanical Engineer (BEng/BSc)
• 3-7+ years' experience in water/wastewater design
• Proficiency in AutoCAD, Plant 3D, SolidWorks, or Revit MEP
• Strong understanding of mechanical installation, materials, and corrosion prevention
• Experience with CFD, FEA, or hydraulic modelling is a plus

If this sounds like a good fit or you'd like to learn more, I'd be happy to arrange a quick call.

I-PAYE Limited is seeking a skilled Civil Design Engineer to work on major infrastructure projects in Greater London. You will be responsible for delivering high-quality civil design solutions and ensuring compliance with industry standards.

The ideal candidate should have a minimum of 5 years' design experience, particularly in regulated sectors, with strong hydraulic knowledge. You will also mentor CAD technicians and develop risk assessments and specifications.

About the Role

We are seeking a skilled Civil Design Engineer to join a major infrastructure / non infrastructure program. This position involves delivering high-quality civil design solutions for complex projects in a regulated environment.

• Produce design deliverables that meet safety and quality standards.
• Prepare civil design calculations and drawings for infrastructure projects.
• Mentor and guide CAD technicians.
• Develop design risk assessments, reports, and specifications.
• Ensure compliance with relevant technical and industry standards.
• Manage design changes and maintain accurate documentation.
• Assist with estimating design package hours.
• Attend and present at technical meetings.

• Minimum 5 years' design experience in a regulated infrastructure sector.
• Strong knowledge of hydraulic calculations and profile preparation.
• Experience with clean water and wastewater systems.
• Skilled in infra and non-infra designs (outline and detailed).
• Awareness of construction methods and materials.
• Knowledge of Engineering Drawing Practices.

Design Manager - Water Framework - Contract Outside of IR35

We are seeking an experienced Design Manager to lead and grow a dynamic design team within the regulated water industry. This is a pivotal role in delivering multidisciplinary projects under the AMP8 framework, ensuring innovation, quality, and efficiency at every stage.

• Manage, mentor, and develop engineers, CAD technicians, and graduates.
• Grow the design team and foster a positive, collaborative culture.
• Lead the design process for complex, multidisciplinary water projects.
• Challenge and improve formal processes and procedures for design delivery.
• Drive adoption of BIM and 3D modelling; identify and implement appropriate software tools.
• Ensure design deliverables meet safety, quality, and integration standards.
• Deliver outputs within agreed timescales and budgets.
• Maintain compliance with industry standards and best practices.
• Record and manage project changes for design packages.
• Assist with estimating design hours and resource planning.

• Minimum 5 years' experience in water framework delivery.
• Proven track record in the regulated water industry.
• Strong leadership and team development skills.
• Expertise in BIM, 3D modelling, and design software tools.

• Work on high-impact projects shaping the future of water infrastructure.
• Long-term engagement with a 4-year project scope.
• Flexible hybrid working model.
• Competitive day rate (Outside IR35).

Interested? Apply now and be part of a team driving innovation in water design.

Vacancy Reference: CR/

Senior Mechanical Engineer - Water Infrastructure (12-Month Contract)
Location: Hybrid Working Across UK
Sector: Water & Environmental Engineering
Employment Type: Contract (12 Months)
Salary: Day rate

A respected UK-based engineering consultancy is seeking a Senior Mechanical Engineer for a 12-month contract to support the delivery of water infrastructure projects across the UK. This hybrid role offers flexibility to work from offices in Manchester, Leeds, or Chester, with travel to project sites as required. You'll be involved in the design and implementation of mechanical systems for clean water, wastewater, and sludge treatment facilities, contributing to sustainable engineering solutions within the UK water industry.

• Lead mechanical design for water and wastewater treatment facilities.
• Collaborate with multidisciplinary teams to deliver high-quality engineering solutions.
• Coordinate with suppliers and subcontractors under framework agreements.
• Conduct feasibility studies and develop equipment specifications.
• Perform site inspections and provide technical recommendations.
• Support client engagement through proposals and project planning.
• Mentor junior engineers and contribute to internal knowledge sharing.

• Degree in Mechanical Engineering or related discipline.
• 3-6 years of experience in mechanical engineering, ideally in the water sector.
• Strong technical skills in mechanical design and specification.
• Familiarity with AutoCAD, Revit, and BIM tools.
• Excellent communication and problem-solving abilities.
• Experience in mentoring or team leadership is a plus.

• 12-month contract minimum with potential for extension.
• Inclusive and collaborative team culture.
• Access to cutting-edge technologies and global expertise.

If you're passionate about sustainable engineering and want to make a real impact in the UK water sector, we'd love to hear from you. Submit your CV and cover letter.

Vacancy Reference: CR/

Vacancy Owner: Teo Delacruz | | (+ | (+

Senior Civil Engineer - Water Infrastructure

Location: Manchester or Leeds, UK (Hybrid Working)

12 months contract minimum, 5 days weekly, Hybrid

Are you an experienced civil engineer looking to make a real impact in the water sector? Join a leading engineering consultancy and help deliver innovative, sustainable solutions for water and wastewater infrastructure projects.

As a Senior Civil Engineer, you'll play a key part in the planning, design, and delivery of complex water sector projects. You'll work alongside multidisciplinary teams, mentor junior engineers, and help create resilient water systems that benefit communities and the environment.

• Lead and contribute to the design and implementation of water and wastewater treatment projects
• Conduct feasibility studies, technical assessments, and data analysis
• Provide technical guidance and mentorship to junior team members
• Collaborate with clients, contractors, and internal teams to ensure successful project outcomes
• Support project management activities, including planning, budgeting, and reporting
• Drive innovation and continuous improvement in engineering processes

• Degree in Civil Engineering or a related field
• 3-6 years' experience in the water sector, particularly in treatment works
• Strong technical skills in civil design and analysis
• Familiarity with UK water industry standards and regulatory requirements
• Excellent communication and problem-solving skills
• Proactive, collaborative, and accountable approach

• Action-oriented and enthusiastic about tackling complex challenges
• Strong analytical and decision-making abilitiesComfortable managing complexity and ambiguity
• Team player who values empathy, humility, and ongoing learning

• Flexible hybrid working arrangements
• Opportunities for professional growth and career development
• Supportive and inclusive team culture
• The chance to work on projects that make a positive impact on communities

Ready to help shape the future of water infrastructure? Apply now to join a team dedicated to delivering sustainable engineering solutions.