Principal Software Engineer – Front-end Developer

RTX • San Jose, CA

16h • Onsite

About The Position

Applied Signal Technology (AST), part of Collins Aerospace and RTX, is seeking a Principal Software Engineer specializing in front-end development. The role contributes to complex, innovative, mission-critical signals intelligence solutions that support U.S. national security. AST develops strategic and tactical SIGINT solutions in areas including high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications. The work environment is described as collaborative and supportive of skill development, creative ideas, integrity, innovation, and work-life balance.

This is an onsite position in San Jose, California, with up to 25% domestic travel to other AST sites and customer locations. The position requires U.S. citizenship and an active, existing TS/SCI clearance with polygraph after day one; the successful candidate must be able to obtain and maintain the required U.S. government security clearance. The role involves front-end development, software lifecycle work, cross-functional collaboration, and support for the Engineering organization’s development environment and DevOps practices.

Requirements

• A degree in Science, Technology, Engineering, or Mathematics (STEM) is typically required, along with a minimum of 8 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 Angular and related technologies, such as TypeScript, JavaScript, DevExtreme, Cytoscape, and Leaflet.
• Working knowledge and proficiency 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; only U.S. citizens are eligible for the required security clearance.
• Active and existing TS/SCI security clearance with polygraph required after day one.

Nice To Haves

• 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, such as Python, JavaScript, Bash, or Perl.
• Experience using configuration management and defect-tracking tools such as Git and JIRA.
• Experience maintaining and working with complex build processes such as Makefiles and CMake.
• Working knowledge of telecommunications systems concepts, computer network models, and protocol suites such as OSI, SS7, TCP/IP, and UMTS, including routing protocols such as EIGRP, IS-IS, OSPF, and BGP.
• Familiarity with telecommunications network infrastructure such as routers and switches, and with network reconnaissance tools and techniques.
• Active and transferable U.S. government-issued Top Secret SCI (TS/SCI) security clearance with polygraph.

Responsibilities

• Apply front-end development expertise to create complex, innovative, mission-critical signals intelligence solutions.
• Contribute to requirements definition, design, development, and testing of software, including new features and enhancements to existing applications and systems.
• Collaborate 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 continual improvement of the software development environment, including Engineering DevOps practices, tools, and workflows.
• Travel domestically, up to 25%, to other AST sites and customer locations.

Benefits

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• 401(k) plan with employer matching funds and a separate employer retirement contribution, including a Lifetime Income Strategy option.
• Tuition reimbursement program.
• Student Loan Repayment Program.
• Life insurance and disability coverage.
• Optional pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal coverage, and identity theft protection.
• Birth, adoption, and parental leave benefits.
• Ovia Health, fertility, and family planning support.
• 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.
• Relocation eligibility.
• Potential eligibility for short-term and/or long-term incentive compensation, depending on position level and other factors.
• Potential benefits include flexible spending accounts, flexible work schedules, paid time off, and holidays.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal