Senior/Principal Mechanical Engineer

Black & White Engineering; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Leadership opportunities

Technical excellence

Client exposure

Team development

Professional growth

Global projects

Job summary

Black & White Engineering seeks a Senior/Principal Mechanical Engineer to lead major project delivery and mentor a growing team. You’ll shape technical outcomes for complex international developments and advance your career within a dynamic consultancy.

You will work on building services with a strong emphasis on HVAC and cooling systems, collaborating with clients and multidisciplinary teams across projects worldwide.

Qualifications

• Degree-qualified Mechanical Engineer.
• Strong building services consultancy experience.
• Expertise in HVAC and cooling systems.
• Proven experience leading project delivery.
• Strong communication and client-facing skills.
• Knowledge of industry best practices and standards.

Responsibilities

• Lead mechanical design delivery across major projects.
• Produce and review engineering calculations and designs.
• Manage project deliverables and technical quality.
• Support client meetings and project workshops.
• Coordinate multidisciplinary design activities.
• Mentor junior and intermediate engineers.
• Support business development and technical initiatives.

Skills

HVAC systems

Project leadership

Client facing

Building services

Communication

Mentoring

Education

Bachelor's degree in Mechanical Engineering

Job description

Are you ready to take ownership of major engineering projects and help deliver the next generation of mission-critical infrastructure?

Black & White Engineering is looking for a Senior / Principal Mechanical Engineer to join our expanding team. This is an outstanding opportunity for an experienced engineer who enjoys technical leadership, project responsibility and mentoring others while continuing to develop their own career.

You'll play a significant role in shaping project outcomes, supporting major clients and helping deliver innovative mechanical engineering solutions across complex international developments.

What's in It For You

• Leadership Opportunities – Lead significant project packages and technical deliverables.
• Technical Excellence – Work on innovative cooling and HVAC solutions.
• Client Exposure – Build relationships with leading global organisations.
• Team Development – Mentor engineers and contribute to future talent development.
• Professional Growth – Advance your career within a rapidly expanding consultancy.
• Global Projects – Support some of the industry's most exciting developments.

What You'll Be Doing

• Leading mechanical design delivery across major projects.
• Producing and reviewing engineering calculations and designs.
• Managing project deliverables and technical quality.
• Supporting client meetings and project workshops.
• Coordinating multidisciplinary design activities.
• Mentoring junior and intermediate engineers.
• Supporting business development and technical initiatives.

Essential Skills

• Degree-qualified Mechanical Engineer.
• Strong building services consultancy experience.
• Expertise in HVAC and cooling systems.
• Proven experience leading project delivery.
• Strong communication and client-facing skills.
• Knowledge of industry best practices and standards.

Learning & Development

You will be joining a community that focuses on learning and development through regular lunch and learn sessions and investment in accredited professional courses or educational programmes. You can set the pace for your professional development, and whatever path you choose, you will receive relevant support.

Company Overview

Black & White Engineering is a multi-award-winning engineering consultancy with offices across the UK, Europe, the Middle East and Asia Pacific.

We are a leading provider of engineering design services for the data centre sector, delivering expertise across Mechanical, Electrical and Plumbing (MEP), Civil and Structural, Power Systems, Sustainability, BIM, Design Management and wider specialist infrastructure disciplines.

Our teams support projects across all areas of the construction industry, offering practical, efficient design solutions that prioritise real-world installation, maintenance and operational performance.

As one of the fastest-growing consultancies in our industry, we offer genuine opportunities for progression. Many of our engineers have developed into leadership roles as the business has expanded. Joining Black & White Engineering means making a meaningful impact with clients and colleagues while receiving the recognition you deserve.