BMS & OT Systems Engineer

Nexus Careers Group Ltd; City Of London; On-site; GBP 85,000 - 90,000; Full time

Benefits offered by this job

Professional development

Technology training

Exposure to major London properties

Job summary

Nexus Careers Group Ltd. is seeking a hands-on BMS & OT Systems Engineer to take technical ownership of Building Management and OT controls across a London multi-site portfolio.

You will work with site engineering teams, BMS contractors, IT, and client stakeholders to ensure reliability, performance and operational resilience of BMS servers, controllers and networks.

Qualifications

• Hands-on BMS/Building Controls engineering experience.
• Direct experience with Schneider BMS systems essential.
• Ability to diagnose faults and optimise BMS performance.
• Experience in live operational or critical environments.
• Relevant apprenticeship, HNC/HND, degree or equivalent in Building Services/Control Systems.

Responsibilities

• Own BMS estate across multi-site London properties, provide engineering support and fault diagnosis.
• Commission, test and tune BMS systems including alarms, trends and performance.
• Manage software upgrades, controller replacements, server workstations, and platform migrations.
• Oversee external contractor work, review designs and commissioning documentation.
• Maintain accurate system documentation and network diagrams.

Skills

BMS engineering

Troubleshooting

Documentation

OT systems knowledge

Education

Apprenticeship/HNC/HND/degree in Building Services/Control Systems

Tools

Schneider BMS

BACnet/Modbus/OPC

Job description

BMS & OT Systems Engineer - Critical Buildings

Location: London, Multi-Site

Salary: £85,000-£90,000

Job Type: Permanent

The Role

We are recruiting for an experience BMS & OT Engineer to take technical responsibility for the operation, resilience and performance of Building Management and Control Systems across a portfolio of prestigious critical properties in London.

This is a technically focused role working across a critical, multi-site environment. You will provide hands-on BMS engineering support while working closely with site engineering teams, specialist BMS contractors, IT and network teams and client stakeholders.

The role covers BMS servers, supervisory software, controllers, field networks, integration gateways and connected building systems with a particular focus on maintaining system reliability, performance and operational resilience.

This is not a pure IT or cyber security position. It is a hands-on BMS and controls engineering role with additional responsibility for system resilience, secure accesss and operational technology.

Key Responsibilities

You will take technical ownership of the BMS estate across multiple sites, providing engineering support, fault diagnosis, system optimisation and technical guidance to operational teams and specialist contractors.

The role will involve commissioning, testing and tuning BMS systems, including control strategies, alarms, trends and system performance.

You will manage BMS lifecycle activities such as software upgrades, controller replacements, server and workstation upgrades and platform migrations.

You will also oversee the technical quality of BMS works delivered by external contractors, reviewing proposals, designs, implementation plans and commissioning documentation.

A key part of the role will be maintaining accurate system documentation, including network diagrams, controller drawings, asset registers, configuration records and system baselines.

You will work alongside IT and network teams to support BMS connectivity, integration and appropriate network segmentation, including systems connected to plant such as chillers, UPS systems, generators, meters and lighting controls.

The role will also involve supporting system backups, recovery processes, secure configuration, user access management and controlled remote access for specialist vendors.

You will ensure appropriate change control is followed for BMS works, including technical review, testing, rollback planning and documentation.

About You

We are looking for a hands-on BMS Engineer or BMS Systems Engineer with strong experience working on live operational buildings.

You must have demonstrable experience working with Schneider BMS systems. This is an essential requirement for the position.

You should be comfortable diagnosing faults, commissioning systems and optimising BMS performance, rather than simply managing BMS contractors.

Experience working across a multi-site commercial, critical or technically complex environment would be highly advantageous.

You will need strong troubleshooting skills and an organised approach to documentation, configuration management and technical change.

Essential Experience & Qualifications

Candidates should have:

• Proven hands-on BMS / Building Controls engineering experience.
• Direct experience working with Schneider BMS systems – essential.
• Experience diagnosing, commissioning and optimising BMS systems.
• Experience working with BMS servers, supervisory platforms, controllers and databases.
• Understanding of BMS communication protocols such as BACnet, Modbus, OPC or LonWorks.
• Experience working within live operational or critical environments.
• A relevant apprenticeship, HNC/HND, degree or equivalent experience in Building Services Engineering, Electrical Engineering, Control Systems, Automation or a related discipline.

Experience with other BMS platforms such as Trend, Siemens, Honeywell or Tridium Niagara would be advantageous.

Knowledge of OT networks, system segmentation, remote connectivity, patch management, backups and system recovery would also have a beneficial

What's on Offer

• £85,000-£90,000
• Opportunity to take technical ownership of BMS systems across three prestigious London properties.
• Exposure to complex building services, controls and operational technology systems.
• Professional development and technology training.
• Opportunity to contribute to engineering and technology strategy across a major commercial property portfolio.