Mechanical Engineer

Johnson Controls; Greater London; On-site; GBP 45,000 - 65,000; Full time

Job summary

Johnson Controls in the United Kingdom is seeking a Mechanical Engineer to join the Fire Suppression and Production Systems team. You will design, develop, and deliver mechanical solutions for fire suppression systems, process equipment, and packaged systems.

The role requires a Bachelor's degree in Mechanical Engineering and 3–7 years' experience in regulated industries, with strong communication and ability to lead design reviews and coordinate with Classification Societies and verification

Qualifications

• 3-7 years' experience in a relevant engineering role.
• Experience delivering projects within regulated industries.
• Strong understanding of mechanical engineering principles, standards, and industry codes.
• Experience with packaged equipment, pressure systems, or process systems.
• Strong communication and stakeholder management skills.
• Familiarity with DNV, ASME, API, ISO, or equivalent standards.
• Experience acting as the engineering focal point with Classification Societies and Independent Verification Bodies.
• Ability to lead design reviews, address technical comments, and secure design approvals from organisations such as DNV, Lloyd's Register, BV, ABS, and TV.
• Knowledge of offshore, marine, and industrial certification requirements.
• Desirable: Experience with water mist, CAFS, inert gas, or fire suppression systems.
• Desirable: Experience within offshore oil & gas, energy, marine, or petrochemical sectors.
• Desirable: Working towards, or holding, IEng or CEng status.
• Desirable: Experience supporting FATs, commissioning, or offshore/site-based activities.

Responsibilities

• Leadership Demonstrate accountability and professionalism.
• Support and mentor Graduate Engineers and CAD Designers.
• Promote knowledge sharing and engineering best practice.
• Project Management Take ownership of engineering work packages and deliverables.
• Support project planning, risk management, and change control.
• Monitor progress, proactively communicate issues, and contribute to successful project delivery.
• Technical Produce and review calculations, specifications, and technical documentation.
• Develop mechanical designs for fire suppression and production systems.
• Carry out equipment sizing, component selection, and design verification.
• Prepare key project documentation, including BOMs, P&IDs, datasheets, reports, FDSs, test procedures, and IOMs.
• Liaise with suppliers and stakeholders to resolve technical queries.
• Support FATs, testing, commissioning, and fabrication activities.
• Identify risks, opportunities and continuous improvement initiatives.

Skills

Communication

Stakeholder management

Education

Bachelor's degree in Mechanical Engineering

Tools

Microsoft Office

Teams

DNV

ASME

API

ISO

Lloyd's Register

Classification Societies

Verification Bodies

Job description

business resource groups and training on things we value

Key responsibilities

• Leadership Demonstrate accountability and professionalism.
• Support and mentor Graduate Engineers and CAD Designers.
• Promote knowledge sharing and engineering best practice.
• Project Management Take ownership of engineering work packages and deliverables.
• Support project planning, risk management, and change control.
• Monitor progress, proactively communicate issues, and contribute to successful project delivery.
• Technical Produce and review calculations, specifications, and technical documentation.
• Develop mechanical designs for fire suppression and production systems.
• Carry out equipment sizing, component selection, and design verification.
• Prepare key project documentation, including BOMs, P&IDs, datasheets, reports, FDSs, test procedures, and IOMs.
• Liaise with suppliers and stakeholders to resolve technical queries.
• Support FATs, testing, commissioning, and fabrication activities.
• Identify risks, opportunities and continuous improvement initiatives.

What we look for

Essential Requirements

• Bachelor's degree in Mechanical Engineering.
• 3-7 years' experience in a relevant engineering role.
• Experience delivering projects within regulated industries.
• Strong understanding of mechanical engineering principles, standards, and industry codes.
• Experience with packaged equipment, pressure systems, or process systems.
• Strong communication and stakeholder management skills.
• Proficient in Microsoft Office and Teams.
• Familiarity with DNV, ASME, API, ISO, or equivalent standards.
• Experience acting as the engineering focal point with Classification Societies and Independent Verification Bodies.
• Ability to lead design reviews, address technical comments, and secure design approvals from organisations such as DNV, Lloyd's Register, BV, ABS, and T V.
• Knowledge of offshore, marine, and industrial certification requirements.

Desirable Requirements

• Experience with water mist, CAFS, inert gas, or fire suppression systems.
• Experience within offshore oil & gas, energy, marine, or petrochemical sectors.
• Working towards, or holding, IEng or CEng status.
• Experience supporting FATs, commissioning, or offshore/site-based activities.

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About Us

Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education.

For more than 140 years, Johnson Controls has delivered performance where it really matters.

Backed by advanced technology, lifecycle services and an industry-leading field organization, we elevate customer performance, turn goals into real-world results and help move society forward.

About the role

We are seeking a Mechanical Engineer to join our Fire Suppression and Production Systems team. In this role, you will be responsible for the design, development, and delivery of mechanical engineering solutions for fire suppression systems, process equipment, and packaged systems.