Instrumentation Service Technician

CITI, Inc.; Charlotte (NC); On-site; USD 60,000 - 95,000; Full time

Job summary

CITI, Inc. seeks an Instrumentation Service Technician to deliver on-site support at a Wastewater Treatment Plant in Charlotte, NC. This pivotal role involves troubleshooting and maintaining instrumentation, PLC, and SCADA systems, and collaborating with engineering and operations teams to enhance performance and compliance. Candidates should hold an Associate's degree with relevant experience in the field.

Benefits

Health insurance

401(k)

Life insurance

Paid time off

Vision insurance

Qualifications

• Minimum of 3 years experience in field service or maintenance of process instrumentation.
• Familiarity with PLCs, SCADA systems (Wonderware, Ignition) is preferred.
• Ability to read and interpret technical documentation, including control drawings and P&IDs.

Responsibilities

• Provide on-site technical support at Wastewater Treatment Plant.
• Serve as technical representative, resolving issues for instrumentation and SCADA systems.
• Perform preventive and corrective maintenance on process instrumentation.

Skills

Troubleshooting

System Optimization

Collaborative Problem-Solving

Technical Documentation

Strong Communication

Education

Associate’s degree in Electronics, Instrumentation, Industrial Automation

Tools

Fluke

Multimeter

Handheld HART Communicators

Job description

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CITI Inc. is seeking a highly motivated Resident Field Technician to provide on-site technical support at a Wastewater Treatment Plant. This individual will serve as a key liaison between the operations team and CITI engineering staff, ensuring continuous functionality and reliability of electrical, instrumentation, and SCADA systems. This is a hands-on, field-based role requiring a combination of troubleshooting expertise, system optimization, and collaborative problem-solving in a mission-critical municipal facility.

DUTIES & ESSENTIAL JOB FUNCTIONS:

• Serve as the on-site technical representative for CITI, providing responsive support and issue resolution for instrumentation, PLC, and SCADA systems.
• Assist with the installation, calibration, and commissioning of instrumentation and control hardware, including flow meters, pressure transmitters, analyzers, and motor control equipment.
• Diagnose and troubleshoot issues in control panels, remote I/O, and SCADA communication networks (Ethernet/IP, Modbus, radio telemetry, etc.).
• Perform preventive and corrective maintenance on process instrumentation and control systems to ensure compliance with operational standards and permit requirements.
• Monitor system performance and collaborate with plant personnel to identify areas for process improvement and automation optimization.
• Interpret P&IDs, electrical schematics, loop drawings, and control logic to support real-time decision-making and field modifications.
• Maintain accurate documentation of maintenance tasks, service reports, loop calibrations, and changes to control strategies.
• Support remote engineering teams during system upgrades or control modifications, providing field insight and verification.
• Uphold CITI’s safety protocols and maintain compliance with OSHA and local safety requirements.

QUALIFICATIONS:

• Associate’s degree in Electronics, Instrumentation, Industrial Automation, or related technical field preferred.
• Minimum of 3 years of experience in field service or maintenance of process instrumentation, preferably in water/wastewater environments.
• Familiarity with PLCs, SCADA systems (Wonderware, or Ignition), and common fieldbus protocols.
• Experience with loop calibration tools (Fluke), multimeters, and handheld HART communicators.
• Working knowledge of industrial control panels, motor starters, VFDs, and I/O systems.
• Ability to read and interpret technical documentation, including control drawings, P&IDs, and logic diagrams.
• Strong communication skills to coordinate effectively with operators, contractors, and engineers.

PHYSICAL DEMANDS/WORK ENVIRONMENT:

• Primary work is performed on-site at Wastewater Treatment Plant.
• Must be able to lift and carry equipment up to 50 lbs and climb stairs/ladders as required.
• Regular exposure to outdoor and industrial plant environments with varying weather conditions.
• Use of PPE is required for safe access to operational areas.
• Occasional off-site meetings or trainings may be required.
• All intellectual property developed during employment is the property of CITI, Inc.
• Health insurance
• 401(k)
• Life insurance
• Paid time off
• Vision insurance

The company is committed to equal employment opportunity. The company will not discriminate against employees or applicants for employment on any legally recognized basis including, but not limited to, age, ancestry, childbirth or related medical condition; citizenship; color; creed, familial status; gender expression; gender identity; genetic information; height; weight; marital status; national origin; physical or mental disability or handicap; pregnancy; race; religion; sex; sexual orientation; uniform service member status or veteran status; or any other characteristic protected by applicable federal, state, or local laws.

Equal Opportunity Employer

This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

Seniority level

• Seniority level

  Not Applicable

Employment type

• Employment type

  Full-time

Job function

• Job function

  Other

• Industries

  Waste Treatment and Disposal and Water Supply and Irrigation Systems

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Inferred from the description for this job

Medical insurance

Vision insurance

401(k)

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