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Sr. Software Design Engineer

Notexternal

Redmond, WA (Bellevue) permanent

Posted: February 11, 2026

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Quick Summary

We are a technology solutions firm headquartered in Bellevue, Washington, with a strong presence across the United States. Unified by a shared passion for solving complicated problems, our people are our greatest asset. We use technology as a tool to bridge the gap between strategy and execution, powered by the knowledge, skills, and the expertise of our teams, who all have unique perspectives and years of experience across multiple industries.

Job Description

Who is Blueprint?

We are a technology solutions firm headquartered in Bellevue, Washington, with a strong presence across the United States. Unified by a shared passion for solving complicated problems, our people are our greatest asset. We use technology as a tool to bridge the gap between strategy and execution, powered by the knowledge, skills, and the expertise of our teams, who all have unique perspectives and years of experience across multiple industries. We’re bold, smart, agile, and fun.

What does Blueprint do?

Blueprint helps organizations unlock value from existing assets by leveraging cutting-edge technology to create additional revenue streams and new lines of business. We connect strategy, business solutions, products, and services to transform and grow companies.

Why Blueprint?

At Blueprint, we believe in the power of possibility and are passionate about bringing it to life. Whether you join our bustling product division, our multifaceted services team or you want to grow your career in human resources, your ability to make an impact is amplified when you join one of our teams. You’ll focus on solving unique business problems while gaining hands-on experience with the world’s best technology. We believe in unique perspectives and build teams of people with diverse skillsets and backgrounds. At Blueprint, you’ll have the opportunity to work with multiple clients and teams, such as data science and product development, all while learning, growing, and developing new solutions. We guarantee you won’t find a better place to work and thrive than at Blueprint.

In This Role

As a Software Engineer, you will design, develop, implement, and maintain sophisticated software applications and systems, including both new projects and enhancements to legacy solutions. You will work independently on complex system-level software, troubleshoot and modernize existing implementations, and contribute to high-quality solutions that meet client requirements. This role emphasizes systems programming, OS-level engineering, and hands-on problem-solving within a collaborative team environment.

Responsibilities


Design, develop, and implement business and system software, including client/server applications and utility programs.


Analyze system requirements, document specifications, and develop software solutions to meet client needs.


Review enhancement requests and legacy implementations, creating modernized designs using current APIs.


Independently understand and navigate complex system architectures to modernize software.


Write clean, maintainable code in C and C++ for new and existing systems.


Prepare detailed software specifications, test plans, and test data.


Conduct unit testing, quality assurance reviews, and post-implementation validation.


Modify and maintain existing programs to meet updated standards.


Create migration packages for system and user testing.


Debug and resolve issues in legacy software using tools such as Windows Debugger, instrumentation, traces, and WPP/ETW trace analysis.

Qualifications

Required:


Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.


5–7 years of relevant experience in systems-level software development.


Solid foundation in computer science, including data structures, algorithms, and software design.


Proficiency in writing and reading C/C++ code.


Strong understanding of operating systems, preferably Windows.


Experience designing and developing large-scale systems software.


Skilled in troubleshooting, debugging, and unit testing production systems.


Ability to quickly understand kernel driver APIs and modernize legacy implementations.

Disqualifiers:


Less than 3 years of relevant work experience.


Insufficient proficiency in reading and writing code.

Preferred Qualifications


Experience working in Windows OS development environments.


Hands-on experience with Windows Debugger, instrumentation-based analysis, and WPP/ETW trace collection.


Proven ability to independently debug complex legacy software systems.


Experience implementing system software tailored to client-specific requirements.

Salary Range

At Blueprint, we strive to offer competitive pay that reflects the value of our team members. Compensation for this role is influenced by a variety of factors, including skills, education, responsibilities, experience, and geographic market.

For candidates based in Washington State, the anticipated salary range is $125,000-$135,000 USD annually. Please note that we typically do not hire new employees at the top of the posted range. Actual starting pay will be determined based on experience, skills, and internal equity. The final salary and job title may vary depending on the selected candidate’s qualifications and could fall outside the stated range.

Equal Opportunity Employer

Blueprint Technologies, LLC is an equal employment opportunity employer. Qualified applicants are considered without regard to race, color, age, disability, sex, gender identity or expression, orientation, veteran/military status, religion, national origin, ancestry, marital, or familial status, genetic information, citizenship, or any other status protected by law.

If you need assistance or a reasonable accommodation to complete the application process, please reach out to: [email protected]

Blueprint believe in the importance of a healthy and happy team, which is why our comprehensive benefits package includes:

• Medical, dental, and vision coverage

• Flexible Spending Account

• 401k program

• Competitive PTO offerings

• Parental Leave

• Opportunities for professional growth and development

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