RTX

162 matching jobs for “Senior Software Engineer”

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RTX

Senior Software Engineer – Front-end Developer

San Jose, California, United States

… Join us and help shape the future of aerospace and defense. Applied Signal Technology (AST) is seeking a Senior Software Engineer with specialization in front-end development who strives for excellence and has passion to be part of a …

Added Oct 28, 2026

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RTX

Senior Principal Lead Software Engineer (Onsite)

Sterling, Virginia, United States

Serve as technical leader for simulation software team, aligning efforts across engineering teams to ensure completion of capabilities within project …

Added Oct 27, 2026

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RTX

Senior Software Engineer/Developer - Huntsville, AL

Huntsville, Alabama, United States

… Our team solves tough, meaningful problems that create a safer, more secure world. The mission of the software team in Huntsville, AL is to provide world-class software for our customers. We are looking to add software …

Added Oct 27, 2026

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RTX

Senior Software Engineer/Developer - Marlborough, MA

Marlborough, Massachusetts, United States

… a safer, more secure world. Join us and help shape the future of aerospace and defense. The mission of the software team in Marlborough, MA is to provide world-class software for our customers. We are looking to add …

Added Oct 27, 2026

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RTX

Senior Software Integration Engineer (on-site)

State College, Pennsylvania, United States

… a shared purpose to solve the world’s most complex problems and create a safer, more connected world. As a Senior Software Integration Engineer on the Enterprise Mission Integration & Test (EMIT) program, you will join a …

Added Oct 27, 2026

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RTX

Senior Systems Engineer – Software Systems (Onsite)

Tucson, Arizona, United States

… more secure world. The Systems Engineering and Test Capabilities (SETC) organization is currently hiring a Senior Systems Engineer to join our Tucson, AZ location. SETC is an exciting and challenging environment where you …

Added Oct 27, 2026

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RTX

Senior Systems Engineer – Software Systems (Onsite)

Tucson, Arizona, United States

… and defense. The Systems Engineering and Test Capabilities (SETC) organization is currently hiring a Senior Systems Engineer to join our Tucson, AZ location. SETC is an exciting and challenging environment where you …

Added Oct 27, 2026

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RTX

Senior Software Engineer, CDS (Onsite - Security Clearance)

US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110

… Collins Aerospace’s Resilient Connectivity Products (RCP) team is looking for an exceptionally motivated Senior Engineer that is passionate about collaborating with High-Performance Teams to create mission critical …

Added Oct 27, 2026

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RTX

Senior Software and Electrical Engineer (Onsite)

Phoenix, Arizona, United States

Develop and maintain software solutions for testing and controlling electrical equipment. Debug and troubleshoot software issues related …

Added Oct 28, 2026

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RTX

Senior Principal Program Protection Engineer (Embedded Software Engineer)

Tewksbury, Massachusetts, United States

The Software Product Assurance Center’s Software Security Sensors and Effectors Department is seeking a highly skilled …

Added Oct 27, 2026

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RTX

Principal Software Engineer

Marlborough, Massachusetts, United States

… and growth opportunities are primary reasons engineers come to work at RTX. The Strategic Communication Software (SW) Engineering Department has an opportunity for a talented Sr. Software Engineer to join our team in …

Added Oct 28, 2026

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RTX

Software Engineer II

Marlborough, Massachusetts, United States

Added Oct 28, 2026

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RTX

Senior Software Operating System Security Engineer

Woburn, Massachusetts, United States

… Typically requires a bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field and 5 years of experience Demonstrated hands-on experience with RHEL …

Added Oct 27, 2026

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RTX

Senior Principal Software Engineer - Embedded Communications (Onsite)

Cedar Rapids, Iowa, United States

… and help shape the future of aerospace and defense. At Collins Aerospace, we don’t just build technology—we engineer mission success. Our Communication Systems teams are on the front lines of innovation, designing and …

Added Oct 27, 2026

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RTX

Senior Software Engineer - Avionics Military FMS (Onsite)

Cedar Rapids, Iowa, United States

… towards the fight, this role is for you! Collins Aerospace is currently seeking qualified candidates for Senior Software Engineer roles in our Military Avionics Flight Management department located in Cedar Rapids, Iowa. Teams are …

Added Oct 27, 2026

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RTX

Senior Software Engineer, HF (Hybrid - Aguadilla, PR)

US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110

… and defense. The Global Engineering & Technology Center in Puerto Rico is looking to hire an experienced Senior Software Engineer to join our Resilient Connectivity Products Software team, under the Mission Systems organization. We are …

Added Oct 27, 2026

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RTX

Senior Software Engineer - RDPL - Onsite (San Diego)

San Diego, California, United States

… Radar Digital Product Line (RDPL) team in San Diego, California, is growing! We are seeking motivated Senior Software Engineers to join our team. In this role, you will have the opportunity to work on cutting-edge …

Added Oct 27, 2026

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RTX

Senior Principal Software Engineer – 5G Core Networks

San Jose, California, United States

… Join us and help shape the future of aerospace and defense. Applied Signal Technology (AST) is seeking a Senior Principal Software Engineer with specialization in protocol development within 5G Core Networks who strives …

Added Oct 27, 2026

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RTX

Software Quality Engineer

Marlborough, Massachusetts, United States

… secure world. Join us and help shape the future of aerospace and defense. We have an immediate need for a Software Quality Engineer for the Advanced Technology Strategic Business Unit (SBU) located in Marlborough, MA. You …

Added Oct 27, 2026

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RTX

Software Quality Engineer

Tucson, Arizona, United States

… of known science and find new ways to connect and protect our world. We have an immediate need for a Software Quality Engineer for the Naval Power Strategic Business Unit (SBU) located in Tucson, AZ. You will work …

Added Oct 27, 2026

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RTX

Senior Software Engineer – Front-end Developer

San Jose, California, United States

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About this opportunity

Original employer description

Date Posted:

2026-10-27



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 with specialization in front-end development 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.

Applied Signal Technology: WHO WE ARE

What You Will Do:

Apply your front-end development expertise to help create complex, innovative, and mission‑critical signals intelligence solutions. Key responsibilities include:
Contribute to the requirements definition, design, development, and testing of software, including new features and enhancements to existing applications and systems.
Collaborate closely with project managers, engineers, and cross‑functional teams to deliver high‑quality software capabilities.
Follow established development practices and processes to ensure proper configuration management and maintainability of software products.
Support the continual improvement of the software development environment, including DevOps practices, tools, and workflows within Engineering.
Travel up to 25% to domestically to other AST sites and customer locations.

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.
Extensive experience developing in modern programming languages such as Python, Java, or C++ within a Linux environment.
Strong experience building complex web applications using the Angular framework and related technologies (TypeScript, JavaScript, DevExtreme, Cytoscape, Leaflet, etc.).
Working knowledge and proficiency in integrating with back‑end server‑side technologies, including application servers and databases such as Neo4j, PostgreSQL, and InfluxDB, as well as RESTful or similar web services.
Proficiency with common data formats such as JSON and XML.
Ability to obtain and maintain 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 technologies such as Kafka or RabbitMQ, and event‑driven architectures.
Experience with Agile/Scrum methodologies, DevOps practices, and test automation frameworks or tools.
Proficiency with one or more scripting languages (Python, JavaScript, Bash, Perl, etc.).
Experience using configuration management and defect‑tracking tools (e.g., Git, JIRA).
Experience maintaining and working with complex build processes (e.g., Makefiles, CMake).
Working knowledge of telecommunications systems concepts, computer network models, and protocol suites such as OSI, SS7, TCP/IP, and UMTS, including routing protocols (EIGRP, IS‑IS, OSPF, BGP).
Familiarity with telecommunications network infrastructure (routers, switches, etc.) and with network reconnaissance tools and techniques.
Active and transferable U.S. government issued Top Secret SCI (TS/SCI) security clearance with Poly.

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
Life insurance and disability coverage
Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Ovia Health, fertility, and family planning
Adoption Assistance         
Autism Benefit
Employee Assistance Plan, including up to 10 free counseling sessions
Healthy You Incentives, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
 Eligible for relocation
And More!

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.

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.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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