Software qa engineer Jobs in Tucson, AZ

Senior Software Engineer

Location : Centennial, CO | Chantilly, VA | Tucson, AZ (Onsite, no remote)

Compensation : $190,000 – $260,000 base + generous benefits

Reports to : Engineering Manager

Type : Full-time | Direct Hire | High-Impact Role

Sector : Defense & National Security | R&D Digital Communications

About The Company

The company is a leading research and development organization building advanced digital communications and geolocation solutions for the U.S. Defense and Intelligence Communities. Their mission-focused team combines deep technical expertise with an agile mindset to deliver capabilities that protect and advance national security.

The Opportunity

As a Senior Software Engineer, you’ll play a critical role in designing, developing, and deploying cutting-edge systems for real-time communications, geolocation, and signal processing. You’ll work side-by-side with a multi-disciplinary R&D team of engineers, scientists, and mathematicians to solve challenging national security problems with elegant, efficient software.

Beyond hands-on engineering, you’ll also mentor junior engineers and provide technical leadership to project teams. If you’re driven to build meaningful solutions that make a real-world impact and want to work in an environment where you see your work go from whiteboard to mission, this role is designed for you.

What You’ll Do

Architecture & Engineering

Design and develop real-time cloud processing architectures

Implement advanced signal processing and geolocation algorithms

Build high-performance, maintainable, and scalable code in C++ and Python

Create user interfaces and data visualization tools supporting mission operations

Ensure software meets performance, functionality, and maintainability standards

Technical Leadership

Mentor and guide junior engineers in technical execution and growth

Provide architectural direction and hands-on code reviews

Foster knowledge-sharing and continuous improvement across the team

Experiment with emerging technologies to integrate innovation into projects

Mission Lifecycle & Delivery

Contribute across the complete system lifecycle, from design to test, deployment, operations, and maintenance

Test solutions with real-world data and customer feedback

Support direct mission outcomes in national security environments

Proactively propose enhancements to frameworks, systems, and workflows

You’d Be a Great Fit If You Have :

Bachelor’s, Master’s, or PhD in Computer Engineering or Computer Science

15+ years of experience in a software engineering role

Highly proficient in modern software engineering practices ensuring readability, maintainability, and testability

Expert-level skills in C++ and Python within Linux environments

Demonstrated experience designing robust, high-performance software architectures

Experience mentoring and providing technical leadership to teams

U.S. citizenship with the ability to obtain and maintain a TS / SCI clearance

DevOps and cloud technology experience (GitLab, CI / CD, Docker, Kubernetes) strongly preferred

Familiarity with Agile development processes and leadership experience

Why Join?

100% employer-paid family medical and dental premiums

Immediate participation in Employee Stock Ownership Plan (ESOP) and 401(k)

Employer 401(k) matching and discretionary contributions

Education reimbursement, flexible schedules, and comp time

Best-in-class perks including team meals, events, charitable donation matching, and more

Work in a mission-driven culture directly supporting U.S. national security

Ready to engineer solutions that protect the nation?

This role is for technical leaders who want to innovate, mentor, and see their work deployed in the real world.

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