Senior Principal Software Engineer - TS/SCI Onsite

RTX; West Valley (WA); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Generous vacation and 401(k)

Tuition reimbursement

Job summary

Applied Signal Technology (AST) seeks a Senior Principal Software Engineer to lead software development efforts, working within a secure DoD environment. The role emphasizes design, implementation, testing, and collaboration with cross‑functional teams in a highly technical setting. The position requires a TS/SCI clearance, U.S.

citizenship, and the ability to obtain polygraph clearance. Expect leadership in software architecture, performance optimization, and tight security practices within a

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience.
• Experience developing in modern programming languages (C) in a Linux environment.
• Knowledge of data structures and efficient problem solving.

Responsibilities

• Participate in requirements, design, development and testing of software to include new work products or enhancements.
• 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 to maintain software configuration management.

Skills

C

Linux

Python

Multithreading

Education

STEM degree

Tools

Kubernetes

Helm

Podman

Job description

Applied Signal Technology (AST) seeks a Senior Principal Software Engineer to lead software development efforts, working within a secure DoD environment. The role emphasizes design, implementation, testing, and collaboration with cross‑functional teams in a highly technical setting. The position requires a TS/SCI clearance, U.S.

citizenship, and the ability to obtain polygraph clearance. Expect leadership in software architecture, performance optimization, and tight security practices within a