Senior Software Engineer - Front-end Developer

RTX (Raytheon); San Jose (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

RTX is seeking a Senior Software Engineer focused on front-end development to join Applied Signal Technology in San Jose, CA. You will build and enhance web applications with Angular, TypeScript, and modern web tech, collaborating with cross-functional teams to deliver high-quality software for national security.

The role requires a STEM degree, 5+ years of experience, and the ability to obtain TS/SCI clearance.

Qualifications

• Requires STEM degree and 5+ years of relevant experience.
• Experience building web applications using Angular, TypeScript, and JavaScript.
• Ability to obtain and maintain TS/SCI security clearance; U.S. citizenship required.

Responsibilities

• Contribute to requirements definition, design, development, and testing of software.
• Collaborate with project managers, engineers, and cross-functional teams to deliver features.
• Follow established development practices and ensure maintainability of software products.
• Support DevOps practices, tools, and workflows within Engineering.
• Travel up to 25% domestically to AST sites and customer locations.

Skills

Python

Java

C++

Angular

TypeScript

JavaScript

RESTful APIs

JSON/XML

DevOps practices

Git/JIRA

Education

STEM degree

Tools

Neo4j

PostgreSQL

InfluxDB

Job 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

Eligibility and Security Clearance

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

Company Overview

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.

About the Position

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.

Work Location

This is an ONSITE position at the San Jose, CA location.

What You Will Do

• 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).