HVAC Design Engineer

ZipRecruiter; Hollywater; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading infrastructure company is seeking a Mechanical Services HVAC Design Engineer. This role involves designing mechanical systems focused on decarbonisation projects within healthcare and local government sectors. Applicants should have over 10 years of experience in mechanical building services and strong communication skills. This position offers hybrid working and numerous benefits, including a competitive salary and extensive training.

Benefits

Competitive salary

25 days holiday + bank holidays

7% matched pension

Employee assistance programme

Cycle-to-work scheme

Qualifications

• 10+ years in mechanical building services including ventilation and heating.
• Experience in site surveys and preparing reports.
• Familiarity with CIBSE, BESA, and Water Regulations.

Responsibilities

• Design mechanical systems including ventilation and heating.
• Conduct site surveys and client meetings.
• Produce technical submissions ensuring compliance.

Skills

Fluid designs expertise

Communication skills

Customer-facing experience

Proficiency in AutoCAD

Job description

Overview

We're Hiring: Mechanical Services HVAC Design Engineer
Location: Bordon / Sunbury-on-Thames / London - Hybrid working | Hours: Mon-Fri, 9am-5pm

About the Role

Join Johnson Controls as a Mechanical Services Design Engineer and help shape the future of sustainable infrastructure. You'll design mechanical systems including ventilation, heating, air conditioning, chillers, and air source heat pumps, focusing on fluid designs for decarbonisation projects. Working with healthcare and local government clients, you'll size ductwork and pipework, select plant equipment, and calculate building heat losses and gains using AC Calc software. Site surveys and client meetings are part of the role, along with producing technical submissions and ensuring compliance with industry standards.

What We Offer

• Competitive salary
• 25 days holiday + bank holidays + sick pay
• 7% matched pension, free life assurance, employee assistance programme
• Discounts on high street brands and Johnson Controls security products
• Cycle-to-work scheme and referral incentives
• Hybrid working and structured career development
• Extensive training and a collaborative team culture
• Commitment to safety through our Zero Harm policy

Due to the nature of this position, we are only able to consider applicants who currently have the unrestricted legal right to live and work in the UK. We are unable to provide sponsorship or assist with visa applications for this role.

What You'll Bring

• Expertise in fluid designs, especially ASHPs, chillers, and decarbonisation systems
• Experience conducting site surveys and preparing reports
• Knowledge of CIBSE, BESA, and Water Regulations
• Willingness to travel (1-2 site visits per week)
• Strong communication skills and customer-facing experience
• 10+ years in mechanical building services (ventilation, heating, domestic services, AC, chillers, ASHPs)
• Proficiency in AutoCAD and technical submissions
• Familiarity with NHS HTM specifications
• Experience in healthcare and local government decarbonisation projects
• Background in project-based environments with design-to-delivery handovers

A Specialist Division Within Johnson Controls

This role sits within a specialist team formed through Johnson Controls' acquisition of H&C Contracts Ltd—an established provider of mechanical services for healthcare environments. Since joining JCI in 2019, the H&C team has continued to deliver high-performance solutions for critical spaces such as operating theatres, MRI suites, and pharmaceutical facilities. You'll be part of a legacy of precision and innovation, backed by the global strength of Johnson Controls.