Principal Software Engineer

Date Posted:

2025-09-18

Country:

United States of America

Location:

CA826: 200 Holger Way,San Jose 200 Holger Way , San Jose, CA, 95134 USA

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance:

TS/SCI without Polygraph

Raytheon Company Managed by Collins Aerospace.

This role is primarily On-Site, with flexibility at hiring manager discretion.

Applied Signal Technology (AST) is seeking a Principal Software Engineer who strives for excellence and have a passion to be part of a team that strengthens our nation and improves the security of our world.  AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the U.S. and its partners. AST’s work in areas such as high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications continually challenges our extraordinary engineers to resolve problems and make the world a safer place. AST’s work environment is passionate, highly collaborative and provides engineers the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation’s finest service members all while embracing integrity, innovation, and work-life balance.

This is an ONSITE position based out of our San Jose, CA location. To learn more about Applied Signal Technology, please click the following link - Applied Signal Technology: WHO WE ARE

What You Will Do:

• Participate in the requirements, design, development and testing of software to include development of new work products or enhancement of existing applications and systems

• Design, code, test, integrate, and document software solutions

• Participate in internal review of software components and systems

• Collaborate with project managers and other professionals within Engineering

• Follow established development practices and processes to maintain the configuration management of software products

• Participate in the advancement of the software development environment and DevOps practices within Engineering

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience

• Extensive experience developing in modern programming languages (e.g. Python, Java, C++) in a Linux environment

• Expertise in microservices architecture and distributed systems

• Ability to obtain a U.S. government issued Top Secret SCI (TS/SCI) security clearance.

• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer: 

• Experience with microservices architecture, distributed systems, containerized deployments, and modern cloud technologies.

• Experience with RESTful APIs, messaging queue technologies (Kafka, RabbitMQ), and event-driven systems.

• Experience with Agile/SCRUM, DevOps, and test automation practices.

• Experience with one or more scripting languages (Python, JavaScript, Bash, Perl, etc.)

• Experience with Qt software development framework.

• Experience with User Interface development and Web front-end frameworks (Angular)

• Experience with embedded software development and software/hardware integration.

• Experience with using configuration management and defect tracking tools (Git, JIRA, etc.).

• Experience maintaining and using complex build processes (makefiles, CMake)

• Familiarity with ITU Standards and telecommunication systems concepts

• Active and transferable U.S. government issued Top Secret SCI (TS/SCI) security clearance with Polygraph.

What We Offer​

• Medical, dental, and vision insurance  ​

• Three weeks of vacation for newly hired employees  ​

• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option  ​

• Tuition reimbursement program ​

• Student Loan Repayment Program  ​