Senior Mechanical Design Engineer

Valoris Group; Greater London; Hybrid; GBP 45,000 - 55,000; Full time

Job summary

A growing building services consultancy in London is seeking a Mid-Senior Mechanical Design Engineer to lead mechanical designs across various projects. This role offers ownership of designs and collaborative work with architects and engineers, focusing on low-carbon solutions. Candidates should have at least three years of experience, expertise in AutoCAD, and knowledge of UK regulations. A competitive salary and hybrid working arrangement are available.

Benefits

Company pension

Generous annual leave allowance

Hybrid working with 1 day from home

Qualifications

• Minimum of 3 years experience in mechanical building services design.
• Background within a building services consultancy.
• Proven experience delivering Cat A and Cat B fit-out projects.

Responsibilities

• Delivery of mechanical designs for fit-out and refurbishment projects.
• Production of schematics, calculations, and technical reports.
• Coordination with architects and structural engineers.

Skills

Mechanical design expertise

Experience in building services

Proficiency in AutoCAD

Understanding of UK regulations

Team collaboration

Tools

IES Virtual Environment

Job description

Mid-Senior Mechanical Design Engineer – Building Services (Hybrid, London)
London EC2 | Hybrid Working

Salary: £45,000 to £55,000 + package

The Opportunity

Valoris Group is working in partnership with a growing building services consultancy delivering technically ambitious mechanical designs across commercial fit-out, refurbishment and mixed-use developments.

This role is suited to an experienced Mechanical Design Engineer who wants genuine influence, not just responsibility. You will have ownership of your designs, direct input into technical decisions, and visibility across projects from concept through delivery. The consultancy places a strong emphasis on quality engineering, low-carbon solutions and future-focused design.

Role Overview

You will be responsible for delivering mechanical building services designs across RIBA Stages 2 to 4, working closely with architects, structural engineers and internal stakeholders. The role offers autonomy, technical challenge and progression within a collaborative consultancy environment.

Key Responsibilities

• Delivery of mechanical designs for commercial Cat A and Cat B fit-out, refurbishment and mixed-use projects
• Production of schematics, calculations, schedules and technical reports
• Development and management of IES VE models and outputs
• Contribution to low-carbon, decarbonisation and retrofit strategies
• Coordination with architects, structural engineers and wider design teams
• Supporting and mentoring junior engineers where required
• Attendance at key design meetings and site visits to review installation quality

Key Requirements

• Minimum of 3 years experience in mechanical building services design
• Background within a building services consultancy
• Proven experience delivering Cat A and Cat B fit-out projects
• Confident using AutoCAD and IES Virtual Environment
• Strong understanding of ASHPs, VRF, MVHR and LTHW / CHW systems
• Working knowledge of UK regulations including Part L, F and O, CIBSE guidance, TM52 and TM59
• Comfortable working autonomously while contributing effectively within a wider team

Package and Benefits

• Salary: £45,000 to £55,000 depending on experience
• Company pension
• Generous annual leave allowance
• Hybrid working with 1 day per week working from home

Location and Hours

• Office: Central London (EC2)
• Hours: 8:00 am to 5:30 pm, Monday to Friday
• Hybrid working available