The Opportunity:
Schweitzer Engineering Laboratories, Inc. (SEL) seeks professional, innovative and detailed individuals for our Software Engineer – Firmware position located at our field office in King of Prussia, Pennsylvania.
If you are looking for an opportunity to work with industry experts while participating in developing cutting edge products, then this may be the position for you!
Software Engineer – Firmware (Multiple Openings)
Responsibilities:
The Software Engineer – Firmware develops the specifications, designs, implements, and documents a wide range of software and firmware products developed by SEL. The incumbent will apply the principles of electrical, electronic, and computer engineering to: (1) write test plans; (2) conduct design tests; (3) prepare and maintain test and design documentation; (4) review data sheets and instruction manuals; (5) undertake to improve SEL’s research and development processes; and (6) participate in industry technical meetings and conferences as required to meet operational and strategic goals.
These positions will be based out of the company’s King of Prussia field office located at 2900 Horizon Drive, Suite 100, King of Prussia, PA 19406. These positions require regular on-site work at the King of Prussia field office and do not permit remote work or work-from-home arrangements.
To Apply:
We ask all candidates to apply through our website at www.selinc.com/careers.
An Award Winning Company
The Schweitzer Engineering Laboratories, Inc. (SEL) family of companies has earned a reputation for quality, reliability, integrity, and service. This has enabled us to expand within both the electric utility and industrial markets in many different industries, markets, and geographies around the world.
Communication with Applicants
SEL sends an initial e-mail response to all applicants at time of résumé or CV submittal. If you do not receive this communication, please check your SPAM filter and make sure your system is not blocking e-mails from SEL. It is important that you ensure your receipt of this e-mail as SEL may communicate future position updates via e-mail.
SEL is an Equal Opportunity Employer: Vets/Disabled.
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Skills Required
- Regular on-site work at King of Prussia, PA; no remote work permitted
- Develop specifications, design, implement, and document firmware/software products
- Write test plans and conduct design tests
- Prepare and maintain test and design documentation
- Review datasheets and instruction manuals
- Apply principles of electrical, electronic, and computer engineering
- Participate in industry technical meetings and conferences as required
Schweitzer Engineering Laboratories (SEL) Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Schweitzer Engineering Laboratories (SEL) and has not been reviewed or approved by Schweitzer Engineering Laboratories (SEL).
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Healthcare Strength — Medical, dental, and vision coverage is described as comprehensive, with the employer covering a significant share of premiums. Feedback suggests on-site clinics, EAP, and wellness programs further strengthen day-to-day health support at major campuses.
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Retirement Support — Employee ownership through an ESOP is positioned as a meaningful long-term benefit for full-time employees. Feedback suggests many view the ownership model and retirement programs as strong components of total rewards.
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Leave & Time Off Breadth — Paid vacation and sick time are characterized as generous alongside company holidays and special leave options. Feedback suggests time off begins accruing immediately and supports key life events.
Schweitzer Engineering Laboratories (SEL) Insights
What We Do
SEL serves the power industry worldwide through the design, manufacture, supply and support of products and services for power system protection, monitoring, control, automation, communications and metering. For more than 30 years, SEL has offered unmatched local technical support, a 10‐year, worldwide warranty and a commitment to making electric power safer, more reliable and more economical.


