Senior Building Services Engineer

Job Description: Senior technical leadership role (Senior Engineer)

Location: Birmingham (Hybrid Working)
Office Requirement: Minimum 3 days per week in the office
Contract: Permanent, Full-time
Reporting to: Technical Director
Role Type: Senior Project Delivery

About the Company

We are a specialist engineering consultancy operating in the renewable thermal energy, mechanical building services, and low-carbon heating and cooling sectors. Since our establishment, we have experienced consistent year-on-year growth and have built a strong reputation for delivering technically rigorous, design-led, and practical engineering solutions.

Our leadership team brings extensive experience in heat pump and thermal engineering, with a track record spanning the design, delivery, commissioning, optimisation, maintenance, and troubleshooting of large-scale low-carbon heating systems. This practical experience informs our approach to engineering design and project delivery.

As our portfolio continues to expand, we are seeking a senior engineering professional to support the development of our growing design team and help shape the next phase of our growth.

Role Overview

We are seeking a Senior Engineer to strengthen our core design capability and take a leading role in project delivery, technical governance, client engagement, mentoring, and team leadership.

This role combines senior heat pump engineering, mechanical systems design, and day-to-day technical project leadership. You will act as a lead design engineer and technical authority, owning engineering outputs, coordinating multidisciplinary inputs, and managing client interfaces.

Senior Engineers remain actively involved in detailed design while taking responsibility for quality, coordination, and programme delivery. Depending on experience, the role may be appointed at Senior or Principal Engineer level, with additional commercial and technical governance responsibilities at Principal level.

Key Responsibilities

Technical Leadership & Engineering Design

Lead delivery of heat pump and HVAC system designs across

Feasibility and concept design

Scheme design, FEED, and detailed design

Delivery, commissioning, and operational support

Produce and review:

Feasibility studies, technical reports, and specifications

Concept designs, layouts, and system options

Detailed design documentation and calculations

Develop and review designs for:

Plantroom layouts (2D and 3D)

System schematic drawings

Size and select:

Main HVAC plant and equipment

Ancillary pipework equipment

Develop and review:

Mechanical specifications and schedules

Carry out and review:

Heat loss and heat gain calculations

Energy performance and operational data analysis

Create, maintain, and review engineering calculation spreadsheets

Project & Client Leadership

Act as the lead technical interface with clients

Build and maintain strong client relationships

Lead day-to-day project delivery across internal and external project teams

Review and understand:

Client specifications

Employer requirements and work instructions

Identify potential non-compliances and develop mitigation strategies

Manage Requests for Information (RFIs) and technical clarifications

Review, approve, and issue meeting minutes and technical notes

Support project management through:

Scope definition

Programme management

Internal budget control

Support variation management where project scope changes occur

Lead project handover activities

Design Coordination & Quality Assurance

Lead mechanical design coordination with:

Architects

Electrical, structural, and controls designers

Support detailed-stage coordination while maintaining design intent

Review and approve developed and detailed designs

Ensure all designs are:

Technically robust

Coordinated across disciplines

Compliant with relevant standards and guidance

Participate in external design reviews and technical validation exercises

Site, Installation & Operational Support

Attend and contribute to:

Site surveys

Design development meetings

Carry out or support:

Installation inspections

Snagging activities

System troubleshooting and remedial strategy development

Support:

Remote monitoring

Seasonal commissioning

Review of as-built documentation

Mentoring & Team Development

Mentor and support Intermediate and Junior Engineers

Review calculations, drawings, and reports produced by junior team members

Provide structured technical feedback and guidance

Contribute to the development of:

Design standards

Calculation tools

Engineering workflows and best practices

Person Specification

Essential

BEng / MEng / MSc in Mechanical Engineering, Building Services Engineering, or a related discipline

10–15 years' professional experience in mechanical building services, geothermal systems, or low-carbon energy system design

Strong technical capability in:

Mechanical building services design

HVAC systems

Low-carbon heating and cooling systems

Knowledge of geothermal and ground source heat pump systems would be advantageous

Proficient in:

Building heat loss and heat gain calculations

HVAC system design and equipment sizing

Systems hydraulics and thermodynamics

Strong working knowledge of industry standards and guidance

Proficient in:

AutoCAD

Microsoft Office Suite

Strong technical writing and client presentation skills

Comfortable working within a small consultancy environment with a high degree of responsibility

Right to work in the UK

Desirable

Chartered Engineer (CEng) status or working towards chartership

Consultancy or client-facing experience

Experience supporting projects through construction, commissioning, and operation

Experience supervising or line-managing engineers

What We Offer

• A senior, influential role within a specialist engineering consultancy
• Technically challenging low-carbon energy projects
• Real ownership of engineering design and technical decisions
• Direct client engagement and project leadership opportunities
• A collaborative, technically focused team culture
• Hybrid working arrangements
• Competitive salary
• Clear progression opportunities and broader technical leadership roles
• 22 days annual leave plus public holidays, increasing with length of service
• Private medical insurance (subject to qualifying period)
• Company contributory pension scheme