BMS & OT Systems Engineer

JLL empowers you to shape a brighter way .   Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong.  Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. Join JLL's dynamic team serving one of the world's largest banking and financial services organisations with a network spanning more than 50 countries and territories.  We're  seeking talented professionals who thrive in fast-paced environments and are eager to drive meaningful change. This is an outstanding opportunity to work alongside industry experts that help shape the future of workplace strategy for a globally recognised institution .   Whether you want a career that could take you to the top or an exciting new direction, we offer opportunities, support and rewards that will help you stand out, fulfil your potential, and ultimately make your mark on something truly exciting.   BMS & Operational Technology   Systems Engineer  - London Based    JLL is seeking an experienced BMS & Operational Technology (OT) Systems Engineer to support the reliability, performance, resilience and secure operation of building management and control systems across a critical London portfolio. 65   The role is principally focused on BMS / industrial controls engineering delivery—including BMS servers, supervisory software, integration gateways, controllers, field   networks   and OT connectivity. In addition, the role will provide resilience and security assurance, ensuring OT/BMS systems are managed in a controlled, standardised and risk-aware manner in line with client operational resilience expectations.   This position works closely with operational engineering teams, IT/network teams, BMS service providers and client stakeholders to deliver stable,   secure   and auditable building controls operations.   What this job involves :      As a BMS & OT Systems Engineer (Resilience & Security) you will take technical ownership of the OT/BMS estate within a multi-site critical portfolio. You will provide hands-on engineering support, manage specialist vendor delivery, and embed structured controls for secure access, patch governance and recoverability while   maintaining   operational uptime.   This is not a pure cyber role. It is a controls engineering role with embedded resilience and cyber- aware ness   responsibilities.     Key Accountabilities   Oper ational Technology Operations & Engineering   Act as engineering lead for the day-to-day health and integrity of BMS/OT platforms across the portfolio.   Support BMS fault diagnosis, performance optimisation and strategy improvements across plant and systems.   Lead lifecycle engineering activities including software upgrades, controller refresh, server/workstation   replacement   and platform migrations.   Support commissioning, testing, tuning and validation of control strategies, alarms,   trends   and system performance.   Own engineering standards and technical quality for BMS works delivered by vendors/subcontractors.   Ensure systems   remain   safe,   reliable   and performant in a live operational environment.   OT/BMS Network & Integration   Support and   maintain   OT/BMS connectivity including switches, segmentation,   topology   and OT integration pathways.   Work with IT and network teams to ensure OT/BMS systems are integrated using approved patterns (segmentation, boundary control, remote connectivity).   Maintain   accurate   OT documentation including:   Network diagrams/topology   Panel/controller   drawings and schematics   OT asset registers and