Senior Digital Buildings EngineerOKTO Integrated Services • London, England, United Kingdom
Senior Digital Buildings Engineer
OKTO Integrated Services
- London, England, United Kingdom
- London, England, United Kingdom
Über
We are based in Lisburn, Northern Ireland, with active project work across Northern Ireland, London, and the wider UK. The team is small and the work is serious — we are at the inflection point between integrator and platform company.
*About the role*
We are hiring a Senior Digital Buildings Engineer to do the hands-on integration work that makes CIDE-OS deployments real. You will configure controllers, integrate technology layers, set up networks, commission systems on site, and make the platform actually work in the buildings we deploy into. This is the practitioner role on the OT side of OKTO.
You will work under the direction of the Lead Operational Technology Engineer, who will own the architectural decisions and integration patterns. Your job is to take those patterns and make them work in real estates, on real timelines, in front of real client engineers. The role is hands-on, technical, and on-site for significant periods during deployment phases.
*What you will do*
* Configure and commission BMS, SCADA, and building automation systems for CIDE-OS deployments.
* Integrate underlying estate systems with the CIDE-OS data fabric — BACnet/IP, Modbus, KNX, OPC, MQTT, REST APIs, and direct integrations as required
* Work alongside client engineers, M&E consultants, and Tier-1 contractors during commissioning — the OKTO face on site for the technical work
* Document configurations, integration decisions, and operational handovers to professional standards — the audit trail matters
* Identify and surface integration patterns that should be standardised at the platform level — feed insights back to the Lead OT Engineer
* Mentor more junior engineers as the OT function grows
*What we are looking for Technical background*
You have 6+ years of hands-on experience configuring, commissioning, and integrating building systems in commercial-scale projects. We expect strong working knowledge of at least three of:
* Tridium (Niagara framework) — workbench-level configuration, drivers, integration
* Schneider Electric BMS (EcoStruxure Building / StruxureWare / Andover) — configuration, point mapping, integration
* KNX — system commissioning, ETS configuration, integration with BMS layers
* BACnet/IP — point mapping, network configuration, troubleshooting at scale
* Crestron, AMX, or similar AV control systems — useful background; not central to this role but the wider integration mindset translates
* SCADA configuration and integration — particularly in critical environments
*Sector experience*
Practical commissioning experience in commercial-scale estates: Trusts, large commercial buildings, data centres, pharmaceutical sites, university campuses, or industrial process facilities — strong commercial-scale BMS commissioning experience translates well.
How you work
* Hands-on and practical — you enjoy making systems actually work, not just designing them on paper
* Methodical — you commission systematically, test thoroughly, and document as you go
* Calm under pressure — commissioning windows are tight, things go wrong, and the test is how you handle it
* Honest about progress — you tell the truth about where the work is, including when it is behind
* Client-facing without being sales-y — the senior engineers you work alongside on site are colleagues, not customers
*The working pattern*
This role can be based in either Northern Ireland or London. Either way, the work involves regular travel between the two — typically a Monday-to-Friday weekly pattern when on active deployment phases, with quieter weeks based at home. Most of the team works to this pattern.
*Travel and accommodation costs are covered by OKTO.*
We are realistic about lifestyle — the work involves real travel and we expect you to be honest with yourself about whether that pattern works for your circumstances before applying.
*Compensation*
Base salary £65,000 - £85,000 if based in London, depending on experience. Share options available subject to performance and tenure. Standard benefits package, travel and accommodation expenses for active project work.
*Alternative: 12-month contract*
If you would prefer a contract engagement rather than PAYE employment, we can offer a 12-month fixed-term contract at £375-475 per day (inside IR35), depending on experience. This is offered as an alternative for candidates who prefer contracting; the role, scope, and expectations are identical to the PAYE position. IR35 status has been determined as inside IR35 given the working arrangements (project-based work under client direction with team integration). Travel and accommodation expenses for active project work covered in both engagement models.
*ON COMPENSATION — HONESTLY*
OKTO is a small company at an inflection point. We are not the highest-paying option in the market for a senior commissioning engineer at this level — the larger BMS players, the major contractors, and the consultancies will all pay more in straight base salary. What we offer instead is genuinely interesting work, exposure to a platform that is becoming a category, and the chance to grow with a small team during the years that determine its trajectory. If straight maximum salary is the priority, we are not the right fit. If meaningful work alongside an experienced lead in a small senior team is the priority, we may be exactly the right fit.
*How to apply*
Send a CV and a short covering note to ambition@oktotechnologies.co.uk. The covering note matters more than the CV — tell us in plain English what you have built and commissioned, and what you have learned from a project that did not go to plan. We are looking for substance, not polish.
First-stage conversation is a 30-minute call. If that goes well, second stage is a practical technical discussion at our Lisburn workshop with the engineering team. Reasonable expenses for travel to interview will be covered.
Experience:
* configuring, commissioning, and integrating building systems: 6 years (required)
Work authorisation:
* United Kingdom (required)
Work Location: On the road
Sprachkenntnisse
- English
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