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System Software Engineer Jobs in Seattle, WA (NOW HIRING)

Systems Software Engineer I

Renton, WA · On-site

$194K - $230K/yr

Assists higher level Systems Software Engineers in the utilization of computer hardware and ... testing of the system software code in relationship to the design sequence of operations.

The Boeing Company The Boeing Company is looking for an Associate Software Engineer to join the P-8 Mission Systems trainer software team located in Kent, Washington . This position will focus on ...

The Boeing Company The Boeing Company is looking for an Associate Software Engineer to join the P-8 Mission Systems trainer software team located in Kent, Washington . This position will focus on ...

The Boeing Company The Boeing Company is looking for an Associate Software Engineer to join the P-8 Mission Systems trainer software team located in Kent, Washington . This position will focus on ...

We are seeking a Software Engineer with experience in Dataplane development, System Software/Embedded software, Cloud Computing, and Networking to join our team. This role will allow you to influence ...

We are seeking a Software Engineer with experience in Dataplane development, System Software/Embedded software, Cloud Computing, and Networking to join our team. This role will allow you to influence ...

As an AI infrastructure startup, we are developing innovative systems to enable large-scale AI ... Participate in all parts of software engineering, ranging from design and implementation of ...

As an AI infrastructure startup, we are developing innovative systems to enable large-scale AI ... Participate in all parts of software engineering, ranging from design and implementation of ...

As an AI infrastructure startup, we are developing innovative systems to enable large-scale AI ... Participate in all parts of software engineering, ranging from design and implementation of ...

Senior Software Engineer

Kent, WA · On-site

$138K - $182K/yr

If you are excited about building dependable embedded systems and contributing your flight software ... Programming languages encompass higher order languages, auto-coded languages and assembly languages.

Software Engineer - Embedded Systems This role focuses on designing, developing, and optimizing embedded firmware and low-level software for advanced hardware platforms. You will build reliable, high ...

New

Senior Software Engineer

Kent, WA

$138K - $182K/yr

If you are excited about building dependable embedded systems and contributing your flight software ... Programming languages encompass higher order languages, auto-coded languages and assembly languages.

Senior Software Engineer

Kent, WA · On-site

$138K - $182K/yr

If you are excited about building dependable embedded systems and contributing your flight software ... Programming languages encompass higher order languages, auto-coded languages and assembly languages.

Meta is seeking a Software Systems Engineer to join our Production Systems Engineering organization ... Experience communicating technical decisions and system designs through written documentation and ...

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System Software Engineer information

See Seattle, WA salary details

$94.5K

$202.2K

$234.4K

How much do system software engineer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for system software engineer in Seattle, WA is $202,246.00, according to ZipRecruiter salary data. Most workers in this role earn between $196,900.00 and $233,300.00 per year, depending on experience, location, and employer.

What does a System Software Engineer do?

A System Software Engineer designs, develops, tests, and maintains the core software that enables computer hardware and system applications to function. This includes operating systems, device drivers, firmware, and other low-level software that interacts closely with hardware components. Their work ensures that systems run efficiently, securely, and reliably. They often collaborate with hardware engineers and application developers to optimize performance and troubleshoot complex technical issues.

What are the key skills and qualifications needed to thrive as a System Software Engineer, and why are they important?

To thrive as a System Software Engineer, you need strong programming skills in languages like C, C++, or Rust, a deep understanding of operating systems, and typically a bachelor’s degree in computer science or a related field. Familiarity with low-level debugging tools, version control systems (such as Git), and kernel development environments is essential. Analytical thinking, problem-solving ability, and effective teamwork are standout soft skills in this role. These competencies are crucial for building reliable, high-performance system software that underpins critical applications and infrastructure.

What is the difference between System Software Engineer vs Software Developer?

AspectSystem Software EngineerSoftware Developer
CredentialsBachelor's in Computer Science or related field; often some experience with systems programmingBachelor's in Computer Science or related field; focus on application development
Work EnvironmentDesigning and maintaining operating systems, firmware, or system-level applicationsCreating user-facing applications, websites, or mobile apps
Industry UsageTech companies, hardware firms, embedded systemsSoftware firms, startups, enterprise applications
Search & Comparison IntentUnderstanding roles related to system-level programmingLooking for application or web development roles

System Software Engineers focus on developing and maintaining system-level software like operating systems and firmware, requiring knowledge of hardware and low-level programming. Software Developers typically create applications and user-facing software, emphasizing higher-level programming skills. Both roles often share similar educational backgrounds but differ in their work focus and environment.

What are some common challenges System Software Engineers face when working on large-scale projects?

System Software Engineers working on large-scale projects often encounter challenges such as maintaining system stability while integrating new features, ensuring compatibility across diverse hardware platforms, and optimizing performance under heavy workloads. Coordinating with cross-functional teams, such as hardware engineers and application developers, is essential to address these complexities. Additionally, they must stay updated with evolving technologies and adhere to rigorous testing and debugging practices to prevent system failures.
Systems Software Engineer I

Systems Software Engineer I

Sunbelt Controls

Renton, WA • On-site

$194K - $230K/yr

Other

Posted 7 days ago


Job description

JOB SUMMARY: 
The position requires the individual to apply their basic technical knowledge and any prior experience for the support of project start up, commissioning and troubleshooting activities.  In addition, this position will be responsible for field assisting of engineering, programming, graphics and closeout documentation activities for each project.

The position requires a basic and proficient level of computer skills and understanding of computer-operated systems. Additionally, the individual is required to closely interact with the Project Manager and/or assigned Project Engineer in the timely completion of each project.  This role will also be responsible at times for hardware design tasks to allow for continued exposure and development in more sophisticated and larger system applications.

ESSENTIAL FUNCTIONS:

  • Assistance in the startup and commissioning activities of basic/zone control systems designed and programmed by others.
  • Performs and validates the execution of the initial systems point-to-point commissioning activities
  • Assists higher level Systems Software Engineers in the commissioning and troubleshooting of local and wide area networks.
  • Assists higher level Systems Software Engineers in the utilization of computer hardware and software to support pre-functional testing of the system software code in relationship to the design sequence of operations.
  • Supports final systems functional testing as required by the project team.
  • Performs basic program and graphics modification and hardware applications designs.
  • Initiates and tracks project checkout documentation and as-built conditions for submission to the assigned Project Manager.
  • Ability to manage time and costs budgets for assigned project tasks as delegated by the Project Manager or higher level Systems Software Engineer.
  • Communicates effectively with all other project team members concerning problems, obstacles, issues and information needs from the field.
  • Communicates effectively to submit daily and/or weekly summary of work reports to the project team leadership.
  • Manages weekly time allocations to multiple assigned projects for on-time weekly submission of the individual's time sheet.
  • Maintains regular in-office presence when not on a job site, providing necessary support and coordination for ongoing projects and team collaboration.
  • Responsible for practicing safe work habits and participates in office safety program requirements and that of any specific safety requirements of all assigned projects.
  • Attends and successfully completes the OSHA 10 and OSHA 30 safety training classes.
  • Takes personal responsibility for the successful completion of any assigned formal training and development plans

EDUCATION AND EXPERIENCE: 

  • Associates degree in a technical field or 2-5 years of related work experience in building automation systems.  Bachelor's degree in Mechanical or Electrical Engineering preferred.
  • Strong mechanical aptitude and any technical school training.
  • Working knowledge of MS Office, Windows, File Structure.  Basic TCP/IP network structure and web navigation are desired.
  • Must be highly organized and possess the ability to work in a high paced environment with the ability to prioritize tasks to meet the schedules given by Sunbelt leadership.
  • Has the ability to operate independently and autonomously and take ownership of all assigned tasks.
    Must possess a valid driver's license.
  • Ability to execute their work to ensure high customer satisfaction and the highest quality deliverable.
  • Excellent oral, written and interpersonal skills are a requirement of this position.

COMPETENCIES:

  • Proactivity / Initiative: Recognizes what needs to be done and accomplishes it in a manner appropriate for one's level/position and with minimal supervision.
  • Perseverance: Shows the wherewithal to fight for difficult goals despite challenges and to bounce back from adversity.
  • Insight: The ability to gather and make sense of information that suggests new possibilities.
  • Engagement: Shows a knack for using emotion and logic to communicate a persuasive vision and connect with people.
  • Teamwork: The ability to effectively work toward common goals with others by supporting, encouraging, and sharing information in an authentic and approachable manner.
  • Big Picture: Understands and contributes to organizations' short- and long-term business strategy.  On a personal level has independently developed a vision for short- and long-term career success.
  • Motivation / Dedication: Commits to excellence in pursuing unselfish goals.  Initiates action with collective goals takes responsibility and shows personal humility.
  • Technical Curiosity / Willingness to Learn: Interest in seeking out new experiences, knowledge, and candid feed, back; demonstrating an openness to learning and change.
  • Problem-Solver: Ability to identify, analyze, and solve a problem in support of personal, group, department, or organizational objectives.

PHYSICAL REQUIREMENTS:

(The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.)

  • Must regularly lift and /or move up to 30 pounds, frequently lift and/or move up to 50 pounds and occasionally lift and/or move up to 100 pounds.
  • While performing the duties of this Job, the employee is regularly required to stand; walk; use hands to finger, handle, or feel and reach with hands and arms. 
  • Specific vision abilities required by this job include Close vision and Ability to adjust focus.
  • The employee is frequently required to sit and talk or hear. 
  • The employee is occasionally required to climb or balance and stoop, kneel, crouch, or crawl.
  • The noise level in the work environment is usually moderate.
  • You are a responsible person with the ability to multi-task. You understand that regular & routine attendance is required.

Sunbelt Controls is a premier provider of building automation system solutions and services for a wide portfolio of clients across the Western United States. We provide BAS solutions that are comprehensive, ranging from new construction installation and system retrofits to preventative service, data analytics and fault detection diagnostics. We lead the industry with building control products and solutions that reduce energy and operational cost across several vertical markets, including office buildings, data centers, healthcare, education, and biotech/pharmaceutical.
We deliver value to our clients by utilizing emerging technologies to create smarter buildings through our professional solutions, services, experiences, and ingenuity. Our employees are comprised of intelligent, dedicated, and entrepreneurial team members who put customers first and enjoy what they do. We believe there is a better way... to grow professionally, to partner and deliver a project. If you are ready for new challenges and new opportunities, come join our team!
What's great about working at Sunbelt Controls is that we're a big enough company to be a leader in Automated Controls contracting in California, the Pacific Northwest, and the Southwest U.S., but as a 100% employee-owned ESOP, we're a private company with a family-oriented feel. Together, the employees of Sunbelt Controls are comprised of intelligent, dedicated, and entrepreneurial team members who put customers first and enjoy what they do.

SUNBELT CONTROLS IS AN EQUAL OPPORTUNITY EMPLOYER AA M/F/V/D.  

We proudly hire U.S. Military Veterans, and those qualified are encouraged to apply.

Equal Employment Opportunity is The Law.|Pay Transparency Nondiscrimination Provision

Sunbelt Controls will consider qualified applicants with criminal histories for employment.

At this time, Sunbelt Controls is unable to provide visa sponsorship.