Senior Control Systems Engineer

Job DetailsJob Location: Mt. Pleasant, SC 29464Position Type: 1099 ContractorSalary Range: $70.00 - $90.00 HourlyTravel Percentage: Up to 50% TIAG is seeking a Senior Control Systems Engineer to architect and design SCADA systems for the AFHE modernization project at Pituffik Space Force Base, Greenland. You will design system architecture, develop serial polling schemes, configure redundant networks, and provide technical leadership for SCADA/PLC integration. This position is remote with travel to North Charleston, SC, and Pituffik SFB, Greenland, up to 50% of the time. A valid passport and eligibility for an active Secret security clearance are required for consideration.  This role is part-time, and 1099 or W2 arrangements available.  Duties & Responsibilities Design overall SCADA system architecture for the AFHE platform using Aveva/Wonderware Develop robust serial polling schemes for RS-485 networks connecting valve actuators, ATGs, and flow computers Implement redundant A and B network communications with automatic failover Implement peer-to-peer PLC communications for emergency shutdown (ESD) functionality Create software logic flow diagrams and polling driver designs Migrate field device polling from server-based to PLC-based architecture Configure industrial communication protocols (Modbus TCP/IP, Modbus Serial, Ethernet/IP) Design Safety Integrity Level 2 (SIL2) safety network architecture Implement tag naming conventions and database structures per AFHE specifications Configure redundant application engines, historians, and SQL databases within the AFHE application Connect devices via a fiber optic network topology and a 1000Base-TX backbone Integrate external subsystems, including tank gauging (Enraf 954), valve actuators (Limitorque/Rotork), and flow computers Provide technical mentorship to the control systems engineer Conduct design reviews and approve technical approaches Troubleshoot complex integration issues during PITCO and onsite testing Qualifications BS in Electrical/Computer Engineering, Computer Science, or related field 10+ years of experience in SCADA/industrial control systems 7+ years with Aveva System Platform (ArchestrA, InTouch, Historian) 5+ years architecting complex SCADA systems with redundancy Expert knowledge of industrial protocols (Modbus, Ethernet/IP, RS-485) Strong PLC programming experience (Modicon M340/580 preferred) Experience designing SIL-rated safety systems Deep understanding of serial communications, bridging, and polling strategies Knowledge of fuel handling systems and bulk storage operations US Citizenship required Extensive travel to Pituffik SFB, Greenland Strong leadership and mentoring abilities Excellent problem-solving and troubleshooting skills Preferred Experience DLA-Energy or defense fuel infrastructure experience Aveva Certified System Platform Developer Enraf/Veeder Root tank gauging integration Rotork/Limitorque valve actuator experience   TIAG is a federal contractor and an equal opportunity and affirmative action employer that does not discriminate and employment  decisions shall be based solely on merit and without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations. This policy applies to all terms and conditions of employment. To achieve our goal of equal opportunity, TIAG maintains an affirmative action plan through which it makes good faith efforts to recruit, hire, and advance in employment qualified individuals with disabilities and protected veterans.