Software Engineer Independent Contractor Jobs in Bothell, WA

Crane Aerospace and Electronicshas an exciting opportunity for a Sr Embedded Software Engineer at ourLynnwood, WAlocation.

About Crane:

Crane Aerospace & Electronicssupplies critical systems and components to the aerospace and defense markets. You'll find Crane Aerospace & Electronics in some of the toughest environments: from engines to landing gear; from satellites to medical implants and from missiles to unmanned aerial systems (UAS).

Located in the epicenter of United States aviation manufacturing, our Crane Aerospace & Electronics Lynnwood, Wash., facility delivers industry-leading aerospace & defense power, sensing and fluid solutions. Our products are rugged enough to fly 5 billion miles from Earth on NASA's New Horizons spacecraft and innovative enough to be featured on Advanced Air Mobility demonstrators. You'll join a group of aerospace professionals committed to engineering excellence and work in a community tucked between the idyllic Puget Sound and Cascade Mountains. Start the next chapter of your career with Crane Aerospace & Electronics!

Job Summary:

The Senior Embedded Software Engineer is a key contributor to the development of advanced sensing technologies within the Sensing & Power Systems (SPS) business unit at Crane Aerospace & Electronics. SPS provides essential sensing capabilities, such as pressure, proximity, air data, and fluid measurement, that support critical aircraft functions across commercial and military platforms. These products must perform reliably in demanding aerospace environments, requiring robust, certifiable embedded software aligned with industry standards. In this role, you will lead software architecture, implementation, integration, and verification activities that directly influence product performance, system safety, and long-term program success.

Essential Responsibilities

• Develop, maintain, and optimize embedded software in C and C++ for SPS sensing products.
• Implement firmware for signal conditioning, sensor calibration, filtering algorithms, data acquisition, and mixed-signal hardware control.
• Use additional languages and tools including Python, Assembly, and DXL.
• Create and integrate SCADE model-based designs and support auto-generated code workflows.
• Perform requirements analysis, decomposition, and traceability using IBM DOORS.
• Use IBM EWM for configuration management, change control, and workflow tracking.
• Conduct static and dynamic analysis, including structural coverage, using LDRA + TQD.
• Support certification activities consistent with DO178C, including documentation development in Adobe FrameMaker.
• Debug hardware/software interactions using debuggers, oscilloscopes, and logic analyzers.
• Collaborate with Systems, Hardware, Test, Quality, and Manufacturing teams throughout development and verification cycles.
• Participate in peer reviews of requirements, design, code, and test artifacts.
• Lead root-cause analysis and corrective actions for software-related issues.
• Mentor early-career engineers and provide technical leadership within Integrated Product Teams (IPTs).
• Support continuous improvement of engineering practices, tools, and processes.

Eligibility Requirement:This position may require access to Controlled Data or Information. Where the position requires such access only US Persons will be considered. As a US Department of Defense contractor, we are bound by International Traffic in Arms Regulations (ITAR).

Technologies, Tools & Environment:

Programming Languages:
C, C++, Python, Assembly, DXL, ADA (low priority)

Modeling:
SCADE model-based development and code generation

Tools:
IBM EWM
IBM DOORS
Adobe FrameMaker
LDRA + TQD
Oscilloscopes, logic analyzers, hardware debuggers

Technologies:
Mixed-signal embedded design
ADC/DAC interfaces
Sensor calibration, filtering, and real-time processing
Aerospace communication interfaces (ARINC, RS232, CAN, AFDX)
Safety-critical development consistent with DO178C

Minimum Qualifications

Experience:

• 5-7+ years of embedded software development experience in a real-time or safety-critical environment.
• Experience working with sensor-based or mixed-signal embedded systems preferred.

Education/Certification:

• BA or BS Degree in Software Engineering, Computer Engineering, Electrical Engineering, or related engineering discipline.
• Master's degree preferred.

Knowledge:

• Strong experience with embedded software development aligned with DO178C or similar safety-critical standards.
• Proficiency in C and C++ for embedded systems.
• Experience with communication interfaces such as ARINC 429, RS232, CAN, AFDX.
• Knowledge of model-based development (SCADE) and requirements simulation.
• Familiarity with simulators, emulators, and embedded debugging tools.
• Experience with structural coverage analysis tools such as LDRA.
• Experience with scripting languages (Python, DXL, etc.).

Skills/Abilities:

• Experience using requirements management tools (DOORS).
• Experience with configuration and change management tools (IBM EWM).
• Ability to analyze requirements, design, and code for compliance with aerospace standards.
• Strong problemsolving, communication, and collaboration skills.
• Ability to mentor and support early-career engineers.

Preferred Qualifications

• Master's Degree in Engineering.
• Experience in aerospace, defense, or other regulated safety-critical industries.
• Experience with SPS sensing products or similar embedded sensor technologies.
• Experience using Adobe FrameMaker for certification documentation.
• Familiarity with Assembly, ADA, and other specialized embedded languages. Experience supporting DO178C audits, reviews, and certification processes.

Top Benefits:

As a team member at Crane Aerospace and Electronics, you'll enjoy:

Benefits:Health care, dental, vision, life and disability insurance starting the first day of the month

Time Off:15 days of paid time off that start accruing your first day at Crane and 12 paid holidays per year.

401k Retirement Plan:401k plan with company match

Education Reimbursement:eligible after 6 months of employment

You can see a list of our benefits athttps://www.craneae.com/company/careersor visit our website atwww.CraneAE.comfor more information on our company and great opportunities.

We are committed to operational excellence and world class processes. We employ Lean manufacturing techniquesto optimize manufacturing efficiency and accuracy on all product lines. Our products are known for their technical strength, proven reliability and overall value.

In our efforts to maintain a safe and drug-free workplace, Crane Aerospace & Electronics requires that candidates complete a satisfactory background check. FAA sensitive positions require employees to participate in a random drug test pool.

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