Principal Infrastructure / Networking Engineer

Prattwhitney; West Valley City (UT); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks vacation

Generous 401(k) with match

Tuition reimbursement

Student Loan Repayment

Life insurance and disability coverage

Relocation assistance

Job summary

Applied Signal Technology (AST) seeks a Principal Infrastructure/Network Engineer to drive design, development, testing and delivery of advanced high-capacity systems for modern communications. You will work with experienced R&D staff on multiple programs and present briefs to teams and customers.

This is an onsite role based in Salt Lake City, UT. The role requires a STEM degree and 8+ years' experience, strong Python, Linux, networking and virtualization skills, plus TS/SCI clearance with

Qualifications

• Degree in Science, Technology, Engineering or Mathematics and 8+ years of experience.
• Experience with Python or similar scripting languages.
• Linux system administration experience, Red Hat preferred.
• Enterprise networking equipment knowledge (Cisco/Arista/Juniper).
• Virtualization knowledge (KVM/VMware/Hyper-V).
• Networking protocols TCP/IP and UDP understanding.
• Experience with configuration management (Puppet/Ansible/Salt).
• Network design and data center setup experience.
• Active TS/SCI clearance with ability to obtain a polygraph.

Responsibilities

• Guide design, development, testing and delivery of high‑capacity systems.
• Collaborate with R&D on system development and deployments.
• Prepare briefings and present to teams, customers and management.
• Work autonomously yet collaboratively in a team environment.

Skills

Python scripting

Linux administration

Networking expertise

Virtualization

TCP/IP / UDP

Configuration management

Network design / data centers

TS/SCI clearance

U.S. citizenship

Education

Bachelor's degree in STEM

Tools

Cisco equipment

Arista gear

Juniper gear

KVM virtualization

VMware

Hyper-V

Puppet

Ansible

Salt

Red Hat Linux

Job description

Date Posted: 2026-09-02

Country: United States of America

Location: US-UT-WEST VALLEY CITY-338 ~ 1127 & 1128 w 2400 S ~ BLDG 338

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Security Clearance Type: TS/SCI - Current Security Clearance Status: Active and existing security clearance required on 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 looking for a Principal Infrastructure/Network Engineer to join our top-tier Engineering team and play a key role in driving our mission forward. You’ll be at the forefront of elevating products and revolutionizing the design, development, testing, and delivery of modern communication systems. AST is known for providing strategic and tactical SIGINT solutions that safeguard the interests of the U.S. and its allies. Our work spans high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications, constantly challenging our exceptional engineers to solve complex problems and make the world safer. We foster a passionate, collaborative work environment that encourages engineers to enhance and broaden their skills, experiment with innovative ideas, and work closely with the nation's top service members—all while upholding values of integrity, innovation, and work-life balance. This is an ONSITE position based out of our Salt Lake City, UT location.

Applied Signal Technology: WHO WE ARE

What You Will Do

Guide and oversee the design, develop, test and delivery of advanced high-capacity systems that process modern communications. Work with other experienced members in R&D on system development and deployments supporting multiple programs. Generate briefings and present material to team members, customers, and AST Management as necessary. Work autonomously yet collaboratively in a team environment.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience with developing in python or similar scripting languages
• System Administration experience; Linux, especially Red Hat based distributions
• Experience with enterprise grade networking equipment, such as Cisco, Arista, or Juniper
• Experience with virtualization technology (KVM, VMWare, Hyper-V)
• Experience and/or knowledge of network protocols, such as TCP/IP and UDP
• Experience with configuration management systems (puppet, ansible, salt)
• Experience designing and setting up networks and data centers
• Active and transferable U.S. government issued Top Secret SCI (TS/SCI) security clearance is required prior to start with the ability to obtain a polygraph after start.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

We Prefer

• Experience with User Interface development
• Experience with enterprise grade storage equipment
• Experience with object-oriented programming languages.
• Experience with or basic understanding of telecommunications systems concepts and/or signal processing
• Experience with Docker, Kubernetes, or other containerized systems.
• Experience with automated system deployments
• Existing TS/SCI with polygraph

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!

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.

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. 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 107,500 USD - 204,500 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 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.

Privacy Policy and Terms: RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.