Senior Software Engineer

About the role

• Date Posted: 2026-11-12
• Country: United States of America
• Location: US-CA-SAN JOSE-826 ~ 200 Holger Way ~ BLDG 826
• 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 Type: TS/SCI with Polygraph

Security Clearance Status: Active and existing security clearance required after day 1

Raytheon Company managed by Collins Aerospace

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

Applied Signal Technology (AST) is seeking a Senior Software Engineer who strives for excellence and has 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 challenge our extraordinary engineers to resolve problems and make the world a safer place.

AST's work environment is passionate, highly collaborative and provides engineers with 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 at the San Jose, CA location.

To learn more about AST, please click the link below.

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
• Travel up to 25%.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience
• Experience developing in C++ in a Linux environment
• Experience with Optimization/Refactoring
• 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 designing and developing database schemas
• Experience with Object Oriented Design/Development and multithreading
• Experience working both in a team environment and individually
• Experience with Agile/SCRUM, DevOps, and test automation practices.
• Experience with one or more scripting languages (Python, Bash, Perl, etc.)
• Experience with User Interface development and Web front-end frameworks (Angular)
• Experience with using configuration management and defect tracking tools (Git, JIRA, Artifactory, etc.).
• Experience maintaining and using build processes (makefiles, CMake)
• Familiarity with network protocols, such as TCP/IP
• Active and transferable U.S. government issued Top Secret SCI (TS/SCI) security clearance with Poly

Learn More & Apply Now

• Do you want to be a part of something bigger?
• A team whose impact stretches across the world, and even beyond?
• At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions - whatever and wherever they may be.

• Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions.
• By joining our team, you'll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow.
• Are you up for the challenge?
• Join our mission today.

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

• Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
• #AST
• As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

Pay and benefits

The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company's performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.