CAD Engineer / HVAC Design Technician

COSAF; Farnworth; On-site; GBP 30,000 - 35,000; Full time

Benefits offered by this job

Annual leave 25 days

Auto-enrolment pension

Private health care

Laptop provided

Training and development

Business travel expenses

Cycle to work

Bonus scheme

Career progression

Long-term career prospects

Job summary

Cosaf Environments Limited is seeking a practical CAD Engineer / HVAC Design Technician to convert design information and site surveys into accurate 2D drawings and coordinated 3D models for industrial and commercial projects.

You will take ownership of drawings, identify buildability issues early, and contribute ideas to improve installation quality, working across office and site environments. The role is hands-on and requires collaboration with engineers and project teams.

Qualifications

• Experience producing CAD drawings for HVAC and mechanical services.
• Ability to interpret technical drawings and specifications.
• Willingness to visit customer sites and coordinate with teams.

Responsibilities

• Produce and revise 2D CAD drawings and 3D models for HVAC, mechanical and electrical installations.
• Develop practical layouts for ductwork, ventilation equipment, air handling and piping.
• Coordinate equipment locations, routing, clearances and interfaces with other M&E services; identify clashes and propose fixes.
• Attend project sites with engineers to survey and verify existing services and dimensions.
• Translate design information and site observations into buildable drawing packages.
• Maintain drawing registers, revision histories and file structures through project lifecycle.
• Liaise with design, estimating, procurement and contracts teams to resolve drawing queries.
• Support project documentation and develop CAD standards and 3D workflows.

Skills

HVAC/M&E drafting experience

2D CAD drafting

3D modelling

Tools

AutoCAD

Job description

CAD Engineer

HVAC & Mechanical Services | Design Technician

Company: Cosaf Environments Limited

Location: Farnworth, Greater Manchester (Office & Site Based)

Employment: Full-Time, Permanent

Salary: £30,000–£35,000 per annum, dependent on experience

The Opportunity

Cosaf Environments is looking for a practical, detail-focused CAD Engineer / HVAC Design Technician to support the delivery of industrial and commercial heating, ventilation, cooling and environmental control projects.

You will turn design information and site surveys into accurate 2D drawings and coordinated 3D models that can be used confidently by our technical, estimating and installation teams.

This is a hands-on technical position, with opportunities to work across a variety of challenging systems and site environments. We are looking for somebody who can take ownership of their drawings, identify buildability issues early and contribute ideas that improve the quality of our installations.

Key Responsibilities

• Produce and revise 2D technical CAD drawings and 3D models for HVAC, mechanical and electrical building services installations, including general arrangements, plans, sections and installation details.
• Develop practical layouts for ductwork, ventilation equipment, air handling plant, cooling and heating equipment, pipework and associated services.
• Coordinate equipment locations, routing, access clearances and interfaces with architectural, structural and other M&E services; identify clashes and propose workable solutions.
• Attend project sites alongside engineers and project managers and progressively undertake measured surveys and verification of existing services and dimensions.
• Translate approved design information, specifications, supplier details and site observations into clear, buildable drawing packages.
• Maintain accurate drawing registers, revision histories, file structures and issue records from design development through installation and as-built handover.
• Liaise with the design, estimating, procurement and contracts teams, as well as manufacturers and specialist suppliers, to resolve drawing queries and support project delivery.
• Support technical submittals, equipment schedules and project documentation, and help develop consistent CAD standards, templates and efficient 3D workflows.

Person Specification

Essential Skills & Experience

• Practical experience producing CAD drawings in HVAC, mechanical services, M&E or a closely related engineering discipline.
• Competent in 2D CAD drafting and practical 3D modelling, using AutoCAD, with the ability to interpret technical drawings and specifications.
• Good spatial awareness, attention to detail and an understanding of how drawings translate into real-world installation.
• Ability to prioritise work, manage drawing revisions and communicate effectively with technical and site-based colleagues.
• Willingness to visit customer sites and work collaboratively across office-based and operational teams.

Desirable Skills & Experience

• Familiarity with HVAC equipment, ductwork, plantrooms, chilled-water pipework and coordinated building services layouts.
• Previous experience with site surveys, installation drawings or as-built documentation.

Remuneration & Benefits

The successful candidate will receive a competitive employment package with opportunities for continued professional development.

• Basic Salary £30,000–£35,000 per annum, dependent on experience
• Annual Leave 25 days per calendar year, excluding bank holidays. Entitlement calculated pro-rata based on a January–December holiday year
• Pension Company auto-enrolment pension scheme
• Healthcare Company healthcare scheme
• Equipment Work computer / laptop provided
• Professional Development Company-funded technical and professional training courses
• Business Expenses Reasonable business travel, fuel and subsistence expenses covered in accordance with company policy
• Cycle to Work Cycle to Work Scheme through salary sacrifice
• Company Incentives Eligibility to participate in the company's incentive/bonus scheme, subject to scheme terms
• Career Progression Opportunities to develop into more senior technical and design responsibilities
• Long-Term Career Progression

Our long-term ambition for this position is to develop a technically competent individual who also demonstrates the commercial awareness, interpersonal skills and ambition to progress into a Technical Sales Engineer role within the business.

The successful candidate will have the opportunity to develop their understanding of Cosaf's engineering solutions, become increasingly involved in client-facing activities, technical proposals and project development, and gradually assume greater commercial responsibilities.

For an individual demonstrating the appropriate aptitude and appetite for sales, this progression would present an opportunity to transition into a more commercially focused position, supported by an enhanced remuneration package incorporating performance-related sales commission.

We are particularly interested in candidates who see this position as an opportunity to establish a long-term career within Cosaf, combining technical engineering expertise with future business development responsibilities