• 1201 West Randolph St., McLeansboro, IL, USA

STC, Inc. – Social Media

Capabilities overview from Boeing.com

STC, Inc. Continues Work to Support U.S. Air Force KC-46 Tanker Program

STC, Inc. is proud to announce its continued work as a component supplier for the U.S. Air Force’s KC-46 aerial refueling tanker program. This collaboration highlights STC’s long-standing expertise in manufacturing custom electronic components for aviation, a field the company has excelled in since its founding in 1986.

STC has a history of providing high-quality components for various avionics systems, including auto-flight systems, flight-instrument systems, and both interior and exterior lighting. For the KC-46 tanker, STC produces specialized inductors designed to power the aircraft’s exterior lights.

As part of the robust KC-46 supply chain, which involves over 650 American businesses, STC is honored to contribute to a project that supports the U.S. military. The KC-46 tankers are vital assets to the Air Force, ensuring that our armed forces have the necessary equipment for missions in the field.

STC takes great pride in assisting the men and women of the military and remains committed to providing top-notch products that support national defense.

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STC, Inc. is looking for a Maintenance Worker

STC, Inc., a manufacturer of transformers & PCB assemblies for a variety of industries, including Aerospace, Military, Scientific, and Industrial is seeking candidates for a Maintenance Worker.

Job Requirements

  • Must be able to lift 70 lbs.
  • Fork-lift experience is helpful, and the job involves routine maintenance of building and manufacturing equipment.
  • Comply with safety regulations and maintain clean and organized work areas.
  • Record and report completed repairs and items that require further attention.

Compensation for this position is competitive and commensurate with experience, ranging from $17 to $21 an hour with benefits including health, dental, and vision insurance, a pension plan, and paid holidays.

Applications can be obtained here or at:

STC, Inc.
1201 W. Randolph St.
McLeansboro, IL

Email resumes and applications to Angie Calkin <acalkin@suntransformer.com>.

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Leslie working on a machine

Leslie Hopkins 15 Year Milestone With STC

Leslie Hopkins celebrated her 15th anniversary with STC in January. She originally joined as a draftsperson responsible for creating and maintaining production drawings.

Over the years, Leslie’s role has grown significantly. While she continues to work with production drawings, her responsibilities now also include the design of printed circuit boards and CNC-fabricated parts. In addition, she’s involved with material procurement and prepares inspection reports, reviews orders, and supervises operation of an automated SMT assembly line.

When asked about the changes she’s seen during her time at STC, Leslie said, “My responsibilities have definitely expanded. Plus, we’ve added a couple of really cool machines that make our product fabrication faster and easier.”

“Leslie is an incredible asset to the team at STC as she can take on almost any new challenging task and excel”, said Brad Cross, president.

She mentioned that her favorite parts of working at STC are running the cool machines, seeing her designs and prototypes fit together perfectly the first time, and having coworkers who have become like family over the last 15 years.

Leslie also shared a personal reflection: “When I was little, my grandpa taught me to find a job I loved so it wouldn’t feel like ‘work.’ I’m thankful to have that here at STC. Coming to work (most days) is fun, and even after 15 years, I still look forward to it.”

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We are hiring, join our team

STC, Inc. is looking for an Electronic Technician

We are looking for an Electronic Technician to add to our team in McLeansboro.

Qualifications include:

  • Associates Degree in electronics or equivalent industry experience is required.
  • Experience using electronic test equipment.
  • Be able to read and understand technical drawings, datasheets, and written work instructions.
  • Excellent attention to detail is highly important as many products are employed in high reliability applications.
  • Must be able to pass a corrected near vision and color vision test.
  • Have general computer skills.
  • Have good verbal and written communications skills.

Responsibilities Include:

  • Test and repair printed-circuit assemblies according to detailed product requirements
  • Assemble and test SMT printed circuit assembly prototypes
  • Use ATE and various measuring/diagnostic tools to test components and subassemblies
  • Devise test equipment setups and circuitry to conduct functional and environmental tests to evaluate RF and embedded processor product performance
  • Troubleshoot printed circuit assemblies using DMM, Oscilloscopes, and RF test equipment
  • Follow ISO 9000 Quality System procedures
  • Generate required test records
  • Analyze and interpret test data

Compensation for this position is competitive and commensurate with experience, ranging from $17 to $30 an hour with benefits including health, dental, and vision insurance, a pension plan and paid holidays.

Applications can be obtained through this link or in person at:

STC, Inc.
1201 W. Randolph St.
McLeansboro, IL

Email resumes and applications to Angie Calkin acalkin@suntransformer.com.

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ISO 9001-2015 certified

ISO Re-certification Obtained

In late 2024 STC hosted an external audit to obtain re-certification for our Quality Management System to ISO 9001 standards. The 2024 audit was completed, and STC, once again, met the requirements to re-certify.

ISO is a globally recognized standard in quality management. One of the most important components in adhering to ISO standards is committing to continuously improve company performance, which has been part of the STC quality process since becoming ISO certified in 1999. STC uses varying methods, like process improvement and quality control, to measure performance improvement.

STC offers advanced electronics manufacturing services (EMS) across a wide range of applications. For more information, visit STCElectronics.com

ISO certification

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