Job Description
About the Role
We are seeking an experienced Building Management System (BMS) Engineer to join our BeMS Optimization Division as a Senior Optimization Engineer.
In this role, you will deliver Optimization, Planned Preventive Maintenance (PPM), and Reactive Service work across a wide range of client sectors. Your focus will be on implementing energy efficiency and decarbonisation solutions that deliver measurable energy, carbon, and maintenance savings.
You will work closely with clients on-site and collaborate with our in-house technical and support teams — serving as a key part of our mission to drive energy performance improvements and sustainability outcomes.
Key Responsibilities
Deliver optimization, PPM, and reactive BMS service works across multiple client sites.
Conduct energy optimization surveys on systems such as Trend, Tridium, Cylon, and Siemens, identifying and implementing improvements to enhance building energy performance.
Produce concise energy optimization reports with recommendations for improved control strategies.
Troubleshoot and resolve energy performance issues identified by the Remote Optimization Centre (ROC) team.
Perform software modifications and system adjustments to improve efficiency.
Undertake PPM servicing — including pre-start checks, control panel inspections, sensor and actuator testing, and supervisory software checks.
Identify and scope small works opportunities during PPM visits, ensuring timely reporting and proposal generation.
Provide technical support and clear communication to clients, explaining findings and recommendations effectively.
Respond to reactive callouts, diagnose issues, and complete repairs or minor installations on HVAC-related systems.
Prepare accurate service and activity reports promptly after site visits.
Maintain compliance with Health & Safety standards, ensuring RAMS documentation is reviewed, signed, and followed at every stage.
Uphold professional conduct, accountability, and a proactive approach to problem-solving.
What You’ll Need
CSCS Gold or ECS card (essential)
Qualification in Electrical or Electronic Engineering (HNC/ONC or equivalent)
5+ years’ experience in BMS commissioning, maintenance, or systems integration
Proficiency with Cylon, Trend, and/or Tridium systems
Experience in fault finding, service delivery, and small project execution
Excellent communication and interpersonal skills, with the ability to engage clients confidently
A solution-oriented and proactive mindset
Strong attention to detail and commitment to quality
Full UK driving license and eligibility to work in the UK
Health & Safety
Ensure all site work complies with Health & Safety regulations.
Review and sign off Risk Assessments and Method Statements (RAMS) before starting any job.
Conduct workplace risk assessments when conditions change and halt work if risks cannot be mitigated.
Keep all Health & Safety certifications current and valid.
Salary & Benefits
Starting salary: From £50,000+ DOE
Electric company car or car allowance, enhanced for EV leasing via our salary sacrifice scheme
£900 grant towards a home EV charging point installation
Overtime rates at 1.5x or 2x standard hourly rate
Working away allowance (3.75 hours’ pay per night)
On-call payment (£35 per day)
25 days annual leave (rising to 28 with service) + bank holidays
Option to buy or sell up to 3 days annual leave
5% matched pension contribution
Life insurance and private medical insurance
Enhanced family leave policies
Employee Assistance Programme & Online GP service
Cycle-to-work scheme and annual Railcard
Professional development allowance for training, certifications, or memberships
Sustainability and volunteer leave:
2 paid sustainable travel days
1 paid charity volunteering day per year
Professional membership fee covered annually
Referral reward scheme
About Us
Optimized is a certified B Corp with over 140 professionals across the UK — in Ashby, Blackpool, Bristol, and Sittingbourne — and engineers operating nationwide.
We help organizations achieve net zero and sustainability goals by delivering integrated solutions in:
Carbon impact management
Utility management
Building optimization
Driven by purpose and values, we put people, planet, and performance at the heart of everything we do.
We believe that the climate emergency is the defining challenge of our generation. Through collaboration, innovation, and integrity, our team delivers measurable decarbonization and energy efficiency results for clients across all sectors.
Diversity, Inclusion & Flexibility
We’re committed to building an inclusive and flexible workplace that values diversity.
Even if you don’t meet every requirement, we encourage you to apply — we recognize that talent comes in many forms.
If you have a medical condition or need any adjustments during the recruitment process, please let us know so we can support you appropriately.
You are also welcome to include your preferred pronouns in your application.
Visa Sponsorship
We offer visa sponsorship for the right candidate and actively welcome applications from skilled international professionals.
How to Apply
If you’re passionate about energy optimization, sustainability, and helping clients achieve net zero, we’d love to hear from you.