Instrument Mechanic - Chesterfield

Posted Friday, December 19, 2025 at 5:00 AM

Advan Six plays a critical role in global supply chains, innovating and delivering essential products for our customers in a wide variety of end markets and applications that touch people’s lives, such as building and construction, fertilizers, plastics, solvents, packaging, paints, coatings, adhesives, and electronics. Our reliable and sustainable supply of quality products emerges from the vertically integrated value chain of our three U.S. based manufacturing facilities.

Advan Six strives to deliver best‑in‑class customer experiences and differentiated products in the industries of nylon solutions, chemical intermediates, and plant nutrients, guided by our core values of Safety, Integrity, Accountability, and Respect. Please view a short video about our company here, Advan Six Video. For more information on Advan Six, please visit our website at

• We provide benefits that are industry competitive and focused on employee well‑being
• Total Rewards program includes a competitive compensation, health, dental, vision & wellness programs, paid vacation, 401K with company matching, health savings programs, disability & life insurance, employee assistance program
• Tuition reimbursement for continued education, certifications, training, and development
• Work within a fast paced and innovative company, meeting passionate colleagues and partners with diverse backgrounds and experiences

• Install, maintain, troubleshoot, and repair:
• Electronic, electrical, mechanical, and pneumatic instruments and systems (i.e. transmitters, switches, analyzers, control valves, relays, etc.)
• Automated control systems (PLC/DCS), discrete input/output devices, communication systems, and computer workstations
• Wide variety of instruments including pH, conductivity, ultrasonic, guided wave radar, mass flow, pressure transducers, RTDs, nuclear levels, etc
• Piping, tubing, and wiring connections, pneumatic control systems
• Electric heating and HVAC controls
• Security and surveillance systems
• Instrument enclosures and wiring systems
• Performing and documenting instrument calibrations
• Performing and documenting preventive maintenance (PM) activities for instrumentation equipment
• Supporting job plan and shop paper development
• Interfacing with equipment manufacturers, specialists, and technical support consultants
• Updating maintenance documentation for critical plant equipment
• Providing daily support to all plant operations in order to continue 24/7 operations
• Performing scheduled and non‑scheduled work orders
• Communicating with planners and ordering non‑stock parts
• Looking up, reading, and understanding manuals, schematics, and P&’s
• Willing to work overtime when required
• Ability to perform physical tasks in an industrial plant environment including, but not limited to climbing ladders and performing confined space entries
• Willing and able to be trained and learn new technologies as the skills of an Instrument Mechanic advance with new technologies and applications
• Ability to work independently and in a multi‑functional team environment
• Additional responsibilities as needed

• Associate’s Degree in Instrumentation
• Or 2 years of experience in Instrumentation and Controls installation, troubleshooting, and repair in a Chemical Plant, Refinery, or similar Industrial environment

• Strong problem solving and troubleshooting skills
• Working knowledge of PLCs, DCS, etc.
• Knowledge of instrumentation design, selection, repair techniques and performance assessment
• Well‑rounded field experience applying good engineering practices to instrumentation repair work for a variety of typical process plant equipment
• Self‑motivated and goal‑oriented individual with proven success working independently and in a multi‑functional team environment

• Ability to lift and move objects that weigh up to 50 lbs., and exert up to 75 pounds pull
• Ability to wear protective equipment for extended periods such as hard hats, goggles, gloves, ear plugs, safety glasses, hot suits, etc.
• Ability to work with hazardous materials
• Ability to work alone and in isolated areas, work around…