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Nusano is seeking a Controls Software Engineer to own controls software end-to-end for scientific and industrial systems. This role designs, develops, validates, integrates, and supports PLC, HMI/SCADA, networking, services, and related controls software. The engineer makes day-to-day technical decisions within assigned scope, applies user experience and safety best practices, troubleshoots hardware and software interfaces, and contributes to controls standards and team knowledge.
Key Responsibilities:
- Own the design, development, testing, integration, and qualification of assigned controls software workstreams for medium-complexity distributed systems (approximately 200–500 I/O points).
- Create new PLC software and modify existing PLC software in accordance with software design specifications, functional requirements, and controls engineering standards.
- Design, maintain, and improve HMI/SCADA applications using industrial user experience, operator interface, alarm-management, and safety best practices.
- Partner with operations, physicists, engineers, and technical specialists to integrate hardware and software systems and support scientific and industrial equipment connected to the PLC environment.
- Integrate PLC software with server-based control systems, such as EPICS or similar SCADA control system frameworks.
- Troubleshoot and debug PLCs, industrial networks, communication interfaces, instrumentation, controls hardware, and software during development, commissioning, and operations.
- Apply networking fundamentals and industrial communication protocols such as EtherCAT, Modbus, and RS-232/485 to controls system design and troubleshooting.
- Participate in hazard analyses and design reviews, identify software-related safety risks, and implement appropriate controls safeguards.
- Develop software design documentation, test plans, operator and training materials, troubleshooting guides, and knowledge-base content.
- Mentor associate engineers on controls software tools, coding practices, and troubleshooting methods, and communicate risks or blockers early with clear technical context.
Work Environment:
Work will be conducted in office, laboratory, engineering, R&D, and/or production environments. The role involves exposure to hazardous materials and conditions, including high voltage, strong magnetic fields, chemicals, cryogenic substances, and radiological sources. Candidates must be comfortable working within radiation environments and willing to adhere to strict safety procedures and use appropriate personal protective equipment. Travel less than 10% of the time for commissioning, vendor visits, training, or other project needs.
Requirements:
- Bachelor's degree in Computer Science, Electrical Engineering, Computer Engineering, Physics, or a related technical field.
- Professional experience developing controls software in an industrial, manufacturing, scientific, or comparable technical environment.
- Proficiency with IEC 61131-3 controls languages, including Structured Text and/or Ladder Logic.
- Experience creating or maintaining HMI/SCADA software and applying industrial UI/UX best practices.
- Ability to interpret electrical schematics, one-line diagrams, and P&ID drawings.
- Working knowledge of networking fundamentals, industrial communication protocols, and distributed controls architecture.
- Experience troubleshooting PLCs, network devices, instrumentation, hardware/software interfaces, and controls systems.
- Working knowledge of source control and code-branch management, preferably Git.
- Strong written and verbal communication skills with the ability to document technical decisions and collaborate across functions.
Preferred Experience:
- EPICS, Beckhoff controls, or other large-scale distributed control systems.
- Working in an R&D, commissioning, accelerator, or safety-controlled environment.
- One or more high-level programming languages, such as C++, Java, C#, or Python.
- Linux operating systems and object-oriented programming practices.
- Test-driven development, automated testing, or comparable software quality practices.
- Troubleshooting complex controls systems that combine PLC, instrumentation, networking, and scientific equipment.
