Commissioning Engineer - Energy Monitoring and BMS IntegrationLocation: Sussex (London and South East travel) Salary: 40,000 - 45,000 + overtime + bonus + benefitsThe Opportunity:We''re looking for a Commissioning Engineer to join a specialist energy monitoring business delivering high-quality metering and data solutions. This is a field-based role with varied site work across London and the South East (occasional UK wide travel), working with major system integrators, OEMs and modern technologies.You''ll be part of a stable, employee-owned company that prioritises technical development, training, and long-term career growth.Key Responsibilities:Commission and configure energy monitoring systems and in-house products on-siteIntegrate systems with Building Management Systems (BMS)Install and configure utility meters (electricity, heat, water, gas)Work with protocols including Modbus, M-Bus, and BACnetSet up and troubleshoot IP-based network infrastructureEnsure accurate data capture for monitoring and billing platformsDiagnose and resolve integration and communication faultsProduce commissioning reports and technical documentationSkills and Experience:Experience with BMS, building controls, or system integrationKnowledge of metering systems and data loggingExperience with Modbus, M-Bus, and BACnet protocolsStrong fault-finding and problem-solving skillsBasic networking knowledge (IP, routers, switches)Electrical or controls engineering backgroundStrong communication skills wit