Software Design Engineer

Overview

Who is Blueprint?

Blueprint is 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.

We are looking for a Software Design Engineer to join us as we build cutting-edge technology solutions! This is your opportunity to be part of a team that is committed to delivering best in class service to our customers.

In this role, you will work on complex, systems-level software that underpins networking, security, and operating system functionality. You’ll collaborate closely with other engineers to troubleshoot and enhance large-scale software systems, improve test automation reliability, and ensure high-quality releases across multiple projects.

A typical day includes debugging failures in automated pipelines, enhancing test coverage for networking and security components, analyzing low-level system behavior using traces and debugging tools, and validating fixes through both automated and manual testing. You’ll gain deep, hands-on exposure to the Windows networking stack while working across both Windows and Linux environments.

• Design, develop, test, and maintain systems-level software and supporting utilities
• Analyze system and software requirements and translate them into robust technical solutions
• Debug, troubleshoot, and fix complex issues in both new and legacy codebases
• Enhance and stabilize automated test suites to improve coverage and pipeline reliability
• Investigate test failures across multiple projects and drive issues to resolution
• Collect, analyze, and interpret diagnostic data such as logs, instrumentation, and system traces
• Implement enhancements and updates to existing software to meet evolving standards
• Prepare clear and detailed software design, test, and validation documentation
• Perform post-implementation validation and resolve defects identified during testing
• Execute periodic manual testing for networking and security scenarios (e.g., VPN, IPSec, WSL)

• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field
• 5–7 years of professional software engineering experience
• Strong foundation in computer science principles, including data structures, algorithms, and software design
• Proven experience designing and developing large-scale systems software
• Hands-on experience writing systems-level code in C and C++
• Experience debugging and maintaining both new and legacy production systems
• Proficiency with debugging and diagnostic tools (e.g., Windows Debugger, gdb, Wireshark, tcpdump)
• Experience collecting and analyzing system traces such as WPP/ETW
• Working knowledge of networking protocols such as IPSec, TCP, and QUIC
• Experience working in both Windows and…