Senior Instrumentation and Controls Engineer

About Valar Atomics At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world. Our first pilot plant in Orangeville, Utah will demonstrate how advanced nuclear systems and fuel fabrication can power the future. Joining Valar Atomics means becoming part of a company where autonomy, ownership, and impact exist at every level. The Team You will be joining Valar Atomics' I&C and Controls Engineering team within the Fuel Manufacturing group. I&C Engineers at Valar own the full controls stack — from PLC logic and batch sequences at the field level to SCADA displays, historian data infrastructure, and enterprise integration at the supervisory level. You will work alongside process, electrical, and nuclear safety engineers in a hands-on environment where the quality of your control system engineering directly supports production reliability and nuclear safety. The team values technical depth, disciplined documentation, and a safety-first culture. The Role Valar Atomics is seeking a Senior Instrumentation and Controls (I&C) Engineer to design, develop, commission, and maintain control systems for nuclear fuel manufacturing facilities. The role spans the full controls stack — PLC and DCS programming, SCADA and HMI development, ISA-88 batch control, safety instrumented systems, historian and enterprise integration, and field commissioning — with senior responsibility for technical leadership of complex projects, contractor oversight, and mentorship of junior engineers. Key Responsibilities Develop and maintain PLC and DCS programs using platforms such as Rockwell ControlLogix/CompactLogix, Siemens S7/TIA Portal, Emerson, or equivalent; program in ladder logic, function block, structured text, and sequential function chart per IEC 61131-3. Develop and configure SCADA applications on platforms such as Ignition, Rockwell FactoryTalk, Wonderware AVEVA System Platform, Siemens WinCC, or equivalent; build and maintain tag databases, communication drivers, scripting, and alarm configuration. Design HMI displays at both the local panel level (Rockwell PanelView, WinCC, or equivalent) and the supervisory SCADA level in accordance with ISA-101 and High-Performance HMI (HPHMI) principles. Develop batch control sequences in accordance with ISA-88; configure phase logic, unit procedures, and recipe management; monitor batch execution, unit status, and recipe progress at the supervisory layer. Configure and manage alarm systems to ISA-18.2 including setpoints, priorities, suppression logic, and alarm KPI monitoring. Configure and commission safety instrumented functions (SIFs) on SIS platforms (Rockwell GuardLogix, Siemens F-CPU, Triconex, or equivalent) in accordance with IEC 61511. Configure plant historian systems (OSIsoft PI / AVEVA PI, Ignition Historian, Rockwell FactoryTalk Historian, or equivalent); build process data dashboards and reports; support ISA-95 enterprise-control integration including data exchange interfaces between control systems and MES, ERP, or LIMS. Tune PID and advanced regulatory control loops; commission instrumentation including flow, pressure, temperature, and level devices; support loop calibration and documentation. Own instrument engineering scope including sizing and specification of field devices (transmitters, control valves, flow elements), instrument index and hook-up drawing development, and hazardous area classification for new and modified installations; review instrument specifications prepared by junior engineers and contractors. Implement and configure industrial communication protocols (OPC-UA, EtherNet/IP, PROFINET, Modbus TCP/RTU, DeviceNet); configure interfaces between PLCs, SCADA, historian, and thi…