Senior Mechanical Design Engineer

CHPK Group; Watford; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Hybrid work

Generous annual leave

CPD support

Employer pension matching

Professional subscriptions paid

Discretionary bonus

Life assurance 4x salary

Exposure to modern IT systems

Job summary

CHPK Group, a leading fire safety engineering consultancy, seeks a Senior Mechanical Engineer to lead the design and development of mechanical building services across diverse sectors in the UK. You will guide the engineering team, ensure quality and safety in design, installation and commissioning, and contribute to tendering and client engagements.

The role offers hybrid working options, strong CPD support, and opportunities to work on high-profile projects within the Celnor Group.

Qualifications

• Bachelor's degree in Mechanical Engineering or related field.
• Proven track record as Mechanical Engineer in services engineering, preferably London.
• In-depth knowledge of HVAC, plumbing, fire protection and other mechanical systems.

Responsibilities

• Lead design and development of mechanical systems for building services projects (HVAC, plumbing, fire protection).
• Provide technical guidance to engineering team and stakeholders.
• Oversee project execution, ensuring design, installation and commissioning meet quality and safety standards.
• Monitor progress and budgets, identify risks and issues.
• Participate in tender preparation and client presentations to win work.
• Stay updated with industry trends and sustainability practices to improve designs.

Skills

HVAC knowledge

Fire protection

AutoCAD

Revit

IES

Project leadership

Education

Bachelor's degree in Mechanical Engineering

Tools

AutoCAD

Revit

IES

Job description

Senior Mechanical Engineer

CHPK are a leading consultancy specialising in fire safety engineering across the built environment. With a reputation for technical excellence and a client-first approach, we work across a diverse range of sectors including residential, commercial, heritage, healthcare, and high-rise developments.

Department: Consulting

Location: Hertford

Description

CHPK are a leading consultancy specialising in fire safety engineering across the built environment. With a reputation for technical excellence and a client-first approach, we work across a diverse range of sectors including residential, commercial, heritage, healthcare, and high-rise developments.

We’re proud of our collaborative culture, where people are supported, ideas are shared, and every team member is valued. If you’re looking to work in a place where your contribution matters and your growth is encouraged, we’d love to hear from you.

Part of the Celnor Group

Celnor Group is a UK-based environmental services group operating across the Testing, Inspection, Certification and Compliance (TICC) landscape. With a growing portfolio of specialist businesses, Celnor provides essential services that protect people, property and the environment. While each business retains its own identity, culture and technical specialism, all are supported by a central group function that invests in people, systems and long-term sustainable growth.

Job details

You will be responsible for leading the design and development of mechanical systems for building services projects, including HVAC systems, plumbing, fire protection, and more.

What you will do

• Conduct feasibility studies and collaborate with other engineers and stakeholders to determine project requirements and objectives.
• Provide technical expertise and guidance to the engineering team, fostering a collaborative and efficient work environment.
• Oversee project execution, ensuring that all mechanical systems are designed, installed, and commissioned to meet quality and safety standards.
• Monitor project progress and budgets, identifying and addressing any potential risks or issues.
• Participate in tender preparation and client presentations to secure new projects and maintain positive client relationships.
• Stay updated with industry trends, advancements, and best practices to incorporate innovative solutions into project designs.
• Promote sustainability and energy-efficient practices in mechanical system designs.

Who you are

• Bachelor's degree in Mechanical Engineering or a related field.
• Proven track record as a Mechanical Engineer within the services engineering sector, preferably with experience in London.
• In-depth knowledge of HVAC systems, plumbing, fire protection, and other mechanical systems relevant to building services.
• Proficiency in design software such as AutoCAD, Revit, and IES.
• Familiarity with UK building codes, regulations, and sustainability standards.
• Strong analytical and problem-solving skills, with the ability to manage multiple projects simultaneously.
• Excellent communication and leadership abilities to collaborate effectively with team members and clients.

Join us

You’ll be joining a business where your contribution matters and where professionalism, integrity and teamwork are genuinely valued. As part of the wider Celnor Group, you’ll benefit from group‑wide investment, shared expertise and opportunities to develop your career as the organisation continues to grow.

Benefits

• Hybrid and flexible working options
• Generous annual leave
• Ongoing CPD, training, and certification support, with rewards for passing professional qualifications and achieving long service
• Employer‑matched Pension contributions
• Annual professional subscriptions paid (if applicable)
• Discretionary bonus based on company and individual performance
• Life assurance, 4x annual salary
• Opportunity to gain exposure to modern IT systems, cloud services, and cross‑company projects
• Plus access to a wide range of employee benefits and rewards

Important information

Celnor Group and its businesses manage recruitment directly. We do not require agency support for this role and will only engage with recruitment partners from our preferred supplier list where necessary.

We may use technology, including AI‑enabled tools, to support parts of the recruitment process. AI is not used for candidate screening, scoring or hiring decisions. All hiring decisions are made by people, for people. Our recruitment systems are ISO 42001 accredited, reflecting our commitment to ethical, transparent and responsible use of technology.