Instrumentation & Controls (I&C) Technician - Multiple Levels

L. L. Blue Engineering; Doraville (GA); On-site; USD 75,000 - 110,000; Full time

Job summary

L.L. Blue Engineering in Doraville, GA is seeking experienced Instrumentation & Controls professionals to join our growing team. We design, integrate, and support mission-critical industrial systems across utilities, manufacturing, and infrastructure sectors.

You will work on PLC, HMI, and SCADA projects, perform calibration and testing of 4-20 mA instrumentation, and help with loop checks, P&IDs, wiring diagrams, and startup activities to ensure systems operate safely and reliably.

Qualifications

• Hands-on Instrumentation & Controls experience in PLC/HMI/SCADA.
• Experience with 4-20 mA instrumentation.
• Electrical and controls troubleshooting skills.
• Familiarity with P&IDs, loop drawings, wiring diagrams.
• Startup, testing, and commissioning experience.

Responsibilities

• Startup, testing, and commissioning of systems.
• Work on PLC, HMI, and SCADA installations.
• Calibration and testing of 4-20 mA instrumentation.
• Troubleshoot electrical and control systems.
• Prepare P&IDs and wiring diagrams.

Skills

Instrumentation & Controls

Troubleshooting

Electrical & controls

Process control

Tools

PLC

HMI

SCADA

Loop drawings

Job description

About L. L. Blue Engineering L.L. Blue Engineering is an industrial automation and control systems engineering firm dedicated to engineering the world of tomorrow. We design, integrate, secure, and support mission-critical industrial systems that keep essential infrastructure operating safely and reliably. Our team specializes in industrial automation, control system modernization, digital plant transformation, IC/OT cybersecurity, commissioning, startup support, and ongoing technical services. We serve clients across utilities, manufacturing, transportation, water and wastewater, and other critical infrastructure industries. At L.L. Blue Engineering, employees have the opportunity to work on meaningful projects, collaborate with experienced professionals, develop technical expertise, and build rewarding careers supporting some of the nation's most important industrial systems. We're Growing. We're Looking for I&C Talent Ready to Contribute. L.L. Blue Engineering is expanding our Instrumentation & Controls (I&C) team, and we're looking for experienced, hands‑on technical professionals ready to contribute to real projects. We're hiring at both Junior and Senior levels. Whether you're developing your I&C career or you're an experienced technician ready for greater responsibility, we're interested in professionals who know the work, enjoy troubleshooting, and take pride in getting systems operating correctly. Required Experience Candidates must have hands‑on Instrumentation & Controls experience and experience in several of the following: PLC, HMI, and SCADA systems Instrument calibration and testing 4‑20 mA instrumentation Electrical and controls troubleshooting Transmitters, sensors, control valves, and actuators Loop checks and I/O verification P&IDs, loop drawings, wiring diagrams, and schematics Industrial automation and process control

• Startup, testing, and commissioning