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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Controls Engineer - **Company:** JLG Industries, Inc. i - **Location:** Roy, UT, United States - **Experience:** Experienced - **Salary:** $91,500.0 - $148,100.0 - **Contract:** Permanent contract - **Skills:** Altium Designer, C Sharp (Programming Language), CAN Bus, Computer Programming, Embedded Software, Health Information Management, Supervisory Control and Data Acquisition (SCADA), Python (Programming Language), Modbus, Software Engineering, Verification and Validation (Software), Subsystems, Systems Integration, Break Fix, Bacnet, Enterprise Integration, Allen-Bradley Factory Automation Equipment, Software Version Control, Legacy Systems, Twincat - **Published:** October 8, 2026 - **Apply:** https://oshkoshcorporation.wd5.myworkdayjobs.com/Oshkosh/job/Roy-Utah-United-States/Principal-Controls-Engineer_R50096 ## About the Role Accredited Bachelor's degree in mechanical/electrical Engineering or related field with five (5) or more years of related experience., * Eight (8) or more years of experience in controls engineering, systems integration, or a related field * Experience integrating multiple PLC-controlled systems and enabling communication across networks (SCADA or similar environments) * Strong experience in: * PLC programming (Allen Bradley, Beckhoff, IFM) * Operator interface (HMI) development * TwinCAT (2 and 3) experience desired, with preference for TwinCAT 3 * Experience developing end-user equipment interfaces with a focus on usability and intuitive operation * Experience working in high-mix environments requiring standardization across multiple products * Familiarity with: * Altium (circuit board design) * Copia (Gerber file repositories) * Experience supporting manufacturing environments, including troubleshooting and production support * Work experience in automotive or heavy-duty vehicle CANbus/Modbus/Bacnet and architecture a plus * Embedded software development experience using C/C++/C# or Python a plus #LI-TM1 CORE COMPETENCIES: Internal Contacts: Contact with peers and others involving explanation of information (these contacts may be within or outside department or division), and the gathering of factual information; may include the communication of sensitive or confidential information. External Contacts: Limited external contact to gather information, answer queries, or ask assistance. Communication Skills: Read, write and comprehend simple instructions, short correspondence and memos; Read and interpret safety rules, operating/maintenance instructions and procedure manuals; Write routine reports, correspondence and speak effectively before both internal and external groups; Read, analyze and interpret business manuals, technical procedures and/or government regulations: Read, analyze and interpret scientific and technical journals, financial reports and legal documents. Decision-Making: Regularly makes significant decisions and final results, typically affecting the entire department. Available guides or precedents are limited. Has authority over the allocation of resources. Complexity, Judgment and Problem Solving: Work requires the ability to plan and perform work in light of new or constantly changing problems, work from broad instruction, and deal with complex factors not easily evaluated. Decisions require considerable judgment, initiative and ingenuity in areas there is little precedent. Supervisory/Managerial: General instructing, scheduling, and reviewing the work of others performing the same or directly related work. Acts as "lead worker". ## Description The Principal Controls Engineer works within engineering groups to support the development and implementation of control strategies and sub-system requirements for advanced equipment control systems. This role supports a broad range of Ogden products including aircraft ground air conditioning equipment, aircraft ground power conversion equipment, load sharing systems, and military aircraft ground support systems. Controls work encompasses control strategy development and verification, including: Component selection (electronic control modules, VFDs, motors, drives, engines, generators, energy storage cells, sensors, etc.) Embedded printed board systems or programmable logic controllers (Allen Bradley, Beckhoff, IFM) HMI design, integration development, programming, communications, and applications This role supports both new product development and sustaining engineering efforts, including modernization of legacy systems due to component obsolescence, and requires strong ownership of PLC programming, operator interface development, and hands-on troubleshooting support. YOUR IMPACT These duties are not meant to be all-inclusive and other duties may be assigned * Perform engineering calculations, investigations, and tasks supporting control system development and implementation * Deliver results according to Oshkosh and general industry engineering standards and processes * Support more senior engineers and product leads in preparation of plans, designs, computation methods, integration and reporting * Support both new product development (NPD) and sustaining engineering efforts, including hardware and software obsolescence updates and system replication using modern components * Design, develop, and program PLC-based control systems and operator interfaces (HMIs), including: + Creation of intuitive, user-friendly displays + Alarm handling and system feedback visualization * Support integration of multiple control systems and communication across networks * Provide hands-on troubleshooting support for manufacturing and test cell operations, identifying root cause across software, hardware, and process-related issues * Support production implementation, field service support, and sustaining engineering activities across a wide variety of products * Collaborate with software engineering, internal engineering groups, and external component suppliers * Provide guidance or mentorship to entry level engineers, designers, or technicians * Support equipment sub-system controls research, development, verification and validation, testing, and production implementation * Support development of requirements including resources, equipment, estimates, test plans, and milestones * Develop and utilize test environments, including bench testing and simulated systems, to validate control strategies * Work with internal and external teams (industry consortiums, universities) on advanced control development and component development efforts * Read and interpret electrical wiring schematics, diagrams, wire tag tables, and P&IDs * Generate Control Narratives with strong revision control documentation * Regular attendance is required