Senior Controls Engineer

• Active DoD Top Secret/SCI clearance is required

• Provide onsite support of existing industrial control systems, which include PLCs, DDCs, SCADA, HMIs, and associated control-system infrastructure
• Perform daily Operations & Maintenance (O&M) activities required to maintain the availability and reliability of SCADA, PLC and DDC systems
• Work with multiple control-system platforms, including Rockwell/Allen-Bradley, Schneider Electric, Siemens , EcoStruxture and other PLC/DDC platforms
• Troubleshoot complex hardware, software, communications, controls, and system-integration issues across multiple facilities
• Support preventive and corrective maintenance activities and provide advanced technical support for operational control systems
• Support configuration management, version control, backups, disaster recovery, and lifecycle management for control-system applications

• Develop and maintain Ignition Vision applications, including graphics, screens, navigation, alarming, trends, scripting, tags, templates, and user interfaces
• Integrate Ignition with PLCs, DDC systems, databases, equipment, and other enterprise and industrial systems
• Integrate and troubleshoot industrial communications using protocols such as EtherNet/IP, Modbus TCP/RTU, BACnet MSTP/TCP, OPC UA/DA, and other industrial protocols
• Develop and implement HMI graphics following high-performance HMI principles, established design standards, and best practices

• Lead or support the implementation of new control systems, equipment integrations, system upgrades, migrations, and lifecycle-replacement projects
• Evaluate existing control-system architectures and recommend improvements to reliability, maintainability, performance, and scalability
• Develop and maintain system documentation, control narratives, sequence-of-operation documentation, network diagrams, configuration records, and other engineering deliverables
• Perform system testing, commissioning, validation, and acceptance activities

• Coordinate with partners to deliver SME insights on controls and facility operations
• Implement and maintain ICS cybersecurity controls and best practices in coordination with IT and cybersecurity personnel
• Collaborate with IT, cybersecurity, engineering, operations, facilities, vendors, and government stakeholders

• Bachelor’s degree (required) in Electrical, Controls Systems, Mechanical Engineering or a related engineering/technical discipline
• Minimum of five (5) years of professional experience working with industrial control systems, including PLCs, DCS, SCADA, HMIs, or similar systems
• Experience supporting DoD customers is highly desirable
• Security+ or equivalent is highly desirable

• Expertise in SCADA, ICS, PLCs, electrical systems, and building automation
• Strong programming and troubleshooting experience with industrial control systems
• Ability to diagnose complex control-system problems across multiple technologies and determine root cause
• Ability to read and interpret electrical drawings, control schematics, network diagrams, P&IDs, control narratives, and sequence-of-operation documentation
• Strong written and verbal communication skills
• Ability to work independently while effectively collaborating with multidisciplinary teams

Why Work for Fusion?

At Fusion, we believe exceptional work begins with exceptional people.

Our teams bring together technical excellence, integrity, and a shared commitment to delivering mission‑critical solutions that directly support national security.

Here, your expertise has real impact.

You’ll collaborate with experienced professionals, contribute to meaningful programs, and be part of a supportive small‑business culture invested in your growth and success.

• Medical insurance with a generous employer HSA contribution
• 401(k) with company match and immediate vesting
• 15 days of vacation
• 5 days of sick leave
• 11 paid federal holidays
• A mission‑focused, supportive small‑business culture where your work makes a real impact

FusionICS, LLC is an Equal Opportunity Employer.

We consider all qualified applicants without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.