Sr. Systems Software Engineer
SPX· Mechanical Or Industrial Engineering· Oct 5, 2026 · 22d ago
Fremont, California (CA), US, 94538
In office
Full-time
Senior
$137K–$195K est.
6+ years exp
Job description
Building the people that build the world.
With platforms in HVAC and Detection and Measurement, SPX Technologies builds innovative solutions that enable a safer, more efficient, sustainable world. Through our RiSE talent development framework, we Reach, Identify, Strengthen, and Engage our employees to support them in their continued development. We’re a global company of problem solvers, collaborators, and innovators, and our businesses build solutions that impact the world.
As part of Detection and Measurement, TCI is a global leader in innovative spectrum monitoring and communications intelligence (COMINT) systems. With solutions to ensure the efficient use of frequencies, long distance communications, monitoring and security communications intelligence applications, we improve communications and protect military forces and infrastructure around the world.
How you will make an Impact (Job Summary)
SPX is a diverse team of unique individuals who all make an impact. As a Senior Systems Software Engineer at TCI, you will contribute to the design and development of advanced RF signal acquisition, processing, analysis, and direction-finding systems used for spectrum monitoring and communications intelligence applications. You will work with multidisciplinary engineering teams to develop software that transforms complex RF and signal-processing concepts into high-performance products used by customers worldwide.
What you can expect in this role (Job Responsibilities)
While each day brings new opportunities at SPX, your core responsibilities will be:
• Design, develop, and maintain embedded and real-time software for RF and signal-processing systems.
• Enhance existing products and develop new capabilities across TCI's product portfolio.
• Collaborate closely with systems, hardware, test, and software engineers to deliver integrated product solutions.
• Support system integration, performance analysis, troubleshooting, and field issue resolution.
• Participate in software architecture, technical trade-off analysis, and design reviews.
• Contribute technical expertise in signal processing, RF systems, and software implementation.
What we are looking for (Experience, Knowledge, Skills, Abilities, Education)
We each bring something to the table, and we are looking for someone who has:
Required Experience
• 6+ years of relevant product development experience.
• Strong foundation in digital signal processing (DSP), RF communications systems, receiver architecture, signal detection, and signal analysis.
• Strong C++ software development skills with experience developing complex software systems.
• Experience developing multi-threaded software.
• Strong analytical, problem-solving, and communication skills.
Preferred Knowledge, Skills, and Abilities
• Experience developing software in Windows and/or Linux environments.
• Experience with inter-process and inter-core communication.
• Experience with Software Defined Radio (SDR) platforms.
• Experience with spectrum monitoring, direction finding, and geolocation.
• Experience with FPGA-based signal-processing systems.
• Experience with Python, MATLAB, or similar engineering tools.
• Familiarity with modern source-control, CI/CD, and automated test practices.
Education & Certifications
• MS in Electrical Engineering, Computer Engineering, Computer Science, or a related discipline with emphasis in Digital Signal Processing (DSP), RF Communications, Wireless Communications, Signal Analysis, or related fields. A PhD is preferred. A BS with substantial directly relevant experience will also be considered.
• Must be a U.S. citizen or Permanent Resident (uncondition) to meet faciltiy ITAR compliance requirements
The compensation information that follows is a reasonable estimate for the position and is provided pursuant to legal requirements in this state. The salary estimate provided represents the typical salary range for the position, and other factors may be used to determine the successful candidate’s actual salary, including: skill set, experience, training, education, organizational needs, internal equity, market data, and geographic zone. The estimated salary range for this position is: $175,000 - $195,000. At SPX, it is not common for individuals to be hired at the higher end of the range, and compensation decisions depend on a variety of factors. This role is eligible to participate in a discretionary bonus plan, subject to the rules governing the plan. SPX offers a variety of benefits, including health benefits, 401k retirement with a company match, and flexible time off. More information about our benefits can be found on the “Rewards and Benefits” section of the career page.
How we live our culture
Our culture is at the center of what we do and, more importantly, who we are. Our core values set a standard for how we manage ourselves, and our Leadership Model sets the standard for how we engage with each other. Whether you are an individual contributor or you lead a large team, each of us leads at SPX.
What benefits do we offer?
We know that the well-being of our employees is integral. Our benefits include:
• Generous and flexible paid time off including paid personal time off, caregiver, parental, and volunteer leave
• Competitive health insurance plans and 401(k) match, with benefits starting day one
• Competitive and performance-based compensation packages and bonus plans
• Educational assistance, leadership development programs, and recognition programs
Our commitment to embrace diversity to build a culture of inclusion at SPX
We value different backgrounds, experiences, and voices at SPX, and we are committed to challenging ourselves, openly communicating, and striving to improve every day. We believe in creating an inclusive work environment where everyone has a voice and is encouraged to realize their fullest potential.
SPX is an affirmative action and equal opportunity employer committed to making selection decisions without regard to race, color, religion, sex, sexual orientation or identity, national origin, age, disability, veteran status, or any other legally protected basis.
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Keywords to mirror
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Benefits
Benefits detected in the listing.
Health Insurance
401k
401(K)
Paid Time Off