Under limited supervision of the Instrumentation Supervisor, Senior Instrumentation Technician participates in and assists with the planning of departmental programs.  Assists the supervisor and coordinates daily operations, performs highly skilled instrumentation work required in the installation, maintenance, testing, and repair of instrumentation & control systems used in all Fairfax Water facilities.

Examples of Duties:

• Assists with departmental programs, as directed and leads and coordinates daily activities of a group of instrumentation technicians engaged in the installation, alteration, maintenance, testing, and repair of instrumentation & control systems in the production, treatment, and distribution of water.Performs highly skilled installation, preventive and corrective maintenance work by:Making inspections of process control instrumentation and electronic equipment.
• Analyzing and investigating causes of instrument failures, irregular operation, and determines the nature and extent of repairs and work sequences required.
• Utilizing electronic test equipment to identify causes of abnormal operations and to verify correct and accurate operations of instruments.
  Installing, calibrating and repairing the more complex process control computers, filter systems, flow and pressure recorders and transmitters. Chlorine, pH and turbidity monitoring equipment. Plant and distribution telemetering equipment. Electronic/electrical control circuits and other complex instrumentation activities utilized in the water treatment process.
• Maintaining SCADA (includes Plant computer systems and Remote PLCs) and perform emergency repair.
• Conducting routine preventive maintenance tasks at storage tanks and pumping stations.
• Reviewing specifications, electronic schematics, circuit diagrams, and manufacturer manuals.
• Maintaining network infrastructure including routing, switching, encryption, wireless, network management and network security in coordination with OT Analysts and/or Systems Controls Engineers.
• Assures proper maintenance of equipment and office records by: Maintaining assigned Fairfax Water vehicles and tools including 
  shop testing equipment.
• Maintaining and updating equipment maintenance and service files.
• Maintains spare parts and project material inventory by estimating costs and preparing purchase orders to replenish stock levels.
• Providing guidance and directions to junior technicians as necessary
• Performing various administrative tasks, including but not limited to: Interviewing for staff vacancies, scheduling employee training 
  and obtaining Vendor quotes.
• Maintaining inventory for the virtual warehouse in the Integrated Enterprise System (SAP).
• Utilizing SAP to schedule, plan and track costs, parts, projects, and work orders.
• Scheduling and coordinating the completion efforts of electrical assignments with other departments.
• Efficiently, using the Integrated Enterprise System (SAP) for receiving work orders, ordering and maintaining the inventory of parts, updating notifications, 
  confirming work orders for completion, and recording time worked.
• Acts as supervisor in the absence of the instrumentation supervisor
• Performs other duties as assigned or required.