Principal Electronics Engineer (onsite

About Johnson Controls

Johnson Controls, a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. For more than 140 years, Johnson Controls has delivered performance where it really matters.

Backed by advanced technology, lifecycle services and an industry-leading field organization, we elevate customer performance, turn goals into real-world results and help move society forward.

Johnson Controls is searching for a Principal Electronics Engineer to be located at the R&D facility in Westford, MA. In this role you will be responsible for designing electronic analog & digital hardware for new fire alarm products as well as supporting existing product lines. Work may include analog design, embedded system designs, small signal and instrumentation circuitry, switch mode power supplies, front panel user interfaces, audio amplifiers, peer-to-peer networking, linear power supplies, sensors and detectors, and fiber optics.

In addition, research new technology that can be used within these products. This position is based in Westford, MA. Candidates must be commuting distance to the office, or able to relocate. Various relocation packages are available.

• Work on analog and digital design and analysis
• Work on microcontroller and embedded system design
• Work with other organizations to conceive, develop, and release new products to production
• Work in a team environment to generate creative solutions to product needs
• Possibly lead small cross‑functional teams of less senior engineers (typ. electrical & mechanical), being responsible for costing, scheduling, and meeting design requirements
• Work closely with Product Management to determine product specifications
• Understand how to design equipment to meet agency certifications (UL, ULC, CE, FCC)

• Minimum Bachelor’s Degree in Electrical or Electronic Engineering
• 8+ years of experience in electronics design related to analog, power, audio, or embedded products/systems
• Low‑current analog design
• Electronic component‑level knowledge and experience
• Experience with electronic CAD (schematic capture, circuit simulation, or related)
• Experience transitioning products to manufacturing
• Power supply design, microprocessors and embedded system design
• Experience with Data Acquisition systems and lab equipment automation
• Mechanical design support experience
• Experience with optics/physics
• Fire Detection product industry experience

$130,000 - $150,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.)

This role offers a competitive Bonus plan that will take into account individual, group, and corporate performance. This position includes a competitive benefits package. The posted salary range reflects the target compensation for this role. However, we recognize that exceptional candidates may bring unique skills and experiences that exceed the typical profile.

To support an efficient and fair hiring process, we may use technology assisted tools, including artificial intelligence (AI), to help identify and evaluate candidates. All hiring decisions are ultimately made by human reviewers.

Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law.

Your buildings have a purpose. They are places for people to live or work. Facilities for learning or healing. Venues for entertainment…