Senior Mechanical Design Engineer

Human Capital Solutions UK; Farringdon; On-site; GBP 85,239 - 121,401; Full time

Job summary

A UK-based engineering consultancy is seeking a Senior Mechanical (HVAC) Design Engineer to lead projects in Farringdon. You'll manage the design of mechanical building services and mentor junior staff. The role requires at least 5 years of experience in building services design. The position offers £45 per hour for a 6-month contract with the possibility of a permanent role at £65K – £75K.

Qualifications

• Minimum 5 years’ experience in building services design.
• Currently working for a consultancy or design & build contractor.
• Proven experience in residential, hotel, or mixed-use projects.

Responsibilities

• Design of mechanical building services, including HVAC and hot/cold-water systems.
• Coordinate MEP services across design teams and disciplines.
• Integrate renewable and low-carbon energy systems into building designs.
• Prepare specifications, drawings, and equipment schedules for HVAC systems.
• Mentor and support junior and intermediate mechanical engineers.
• Ensure designs comply with CIBSE guidelines, British Standards.

Skills

Building services design

HVAC systems

Project management

Team leadership

Job description

Senior Mechanical (HVAC) Design Engineer – £45 per hour

Location: Farringdon, London

Contract: 6 months

Hours: Up to 40 hours per week

Immediate start

I’m looking for a Senior Mechanical (HVAC) Design Engineer to join a medium‑size, multi‑disciplinary engineering consultancy based near Farringdon.

They have a strong pipeline of hotel and high‑rise residential projects and need an experienced Senior Mechanical (HVAC) Design Engineer to lead these projects.

Reporting directly to the M&E Director, you’ll take full ownership of your projects, from concept through delivery, whilst liaising directly with clients, contractors, and developers.

Key Responsibilities

• Design of mechanical building services, including HVAC and hot/cold‑water systems.
• Coordinate MEP services across design teams and disciplines.
• Integrate renewable and low‑carbon energy systems into building designs.
• Prepare specifications, drawings, and equipment schedules for HVAC systems.
• Review RFIs, technical submittals, and contractor design information.
• Mentor and support junior and intermediate mechanical engineers.
• Manage project profitability, ensuring designs meet programme and budget targets.
• Ensure designs comply with CIBSE guidelines, British Standards, and client‑specific requirements such as CP1.

Requirements

• Minimum 5 years’ experience in building services design.
• Currently working for a consultancy or design & build contractor.
• Proven experience in residential, hotel, or mixed‑use projects.
• Confident in leading projects and managing small design teams.
• Takes full ownership and accountability for technical delivery and client satisfaction.

They are also willing to employ you on a permanent basis; and their budget is £65K – £75K for a solid Senior / Principal Mechanical Engineer.

Seniority level

Mid‑Senior level

Employment type

Contract

Job function

Consulting, Design, and Engineering

Industries

Engineering Services, Design Services, and Building Construction