Sr. Prin. Infrastructure / Networking Engineer

RTX; Anaheim (CA); On-site; USD 146,000 - 277,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks of vacation for newly-hire

Generous 401(k) plan with matching

Tuition reimbursement

Student Loan Repayment

Life insurance and disability coverage

Relocation Eligibility

Job summary

RTX's Applied Signal Technology in Anaheim Hills, CA is seeking a Senior Principal Infrastructure / Networking Engineer who will guide design, development, testing and delivery of high-capacity systems for secure communications.

The role requires TS/SCI with poly, US citizenship, extensive Linux, networking, virtualization, scripting, and experience with enterprise gear; travel up to 25%; onsite with some flexibility.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience.
• Experience with system development to support multiple programs.
• Experience with development using Python or similar scripting languages
• Hands-on experience with Linux, especially Red Hat based distributions
• Experience with System Administration
• 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
• Experience verifying and validating the software and system work as intended
• Experience working both in a team environment and independently
• Active and transferable Top Secret SCI (TS/SCI) U.S. government issued security clearance is required prior to start date 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

Responsibilities

• You will be an integral part of a team that makes decisions and generates ideas that will push products above and beyond.
• You will guide and oversee the design, develop, test and delivery of advanced high-capacity systems that process modern communications.
• You will work with other experienced members in R&D on system development and deployments for the protection of our country.
• You need excellent written and verbal communication skills and the ability to work autonomously yet collaboratively in a team environment.
• You will generate briefings and present material to team members, customers, and AST Management as necessary.
• Travel up to 25% - other AST locations / customer sites

Skills

Python

Linux

Networking

Virtualization

Puppet/Ansible/Salt

TCP/IP

Education

STEM degree

Tools

Cisco

Arista

Juniper

KVM/VMware/Hyper-V

Job description

Date Posted:

2026-08-24

Country:

United States of America

Location:

US-CA-ANAHEIM-406 ~ 160 N Riverview Dr ~ BLDG 406, Ste 150

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 with Poly - Current

Security Clearance Status:

Active and existing security clearance required on day 1

Raytheon Company Managed by Collins Aerospace

This role is primarily On-Site, with flexibility at hiring manager discretion.

Applied Signal Technology (AST), a national asset in the SIGINT domain, is seeking a Senior Principal Infrastructure / Networking Engineer who strives for excellence and has a 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 dynamic, highly collaborative and provides engineers 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 ourAnaheim Hills, CA location. To find out more about AST, please click the following link - Applied Signal Technology: WHO WE ARE

What You Will Do

• You will be an integral part of a team that makes decisions and generates ideas that will push products above and beyond.
• You will guide and oversee the design, develop, test and delivery of advanced high-capacity systems that process modern communications.
• You will work with other experienced members in R&D on system development and deployments for the protection of our country.
• You need excellent written and verbal communication skills and the ability to work autonomously yet collaboratively in a team environment.
• You will generate briefings and present material to team members, customers, and AST Management as necessary.
• Travel up to 25% - other AST locations / customer sites

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience with system development to support multiple programs.
• Experience with development using Python or similar scripting languages
• Hands-on experience with Linux, especially Red Hat based distributions
• Experience with System Administration
• 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
• Experience verifying and validating the software and system work as intended
• Experience working both in a team environment and independently
• Active and transferable Top Secret SCI (TS/SCI) U.S. government issued security clearance is required prior to start date 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

Qualifications We Prefer:

• Experience with User Interface development
• Experience with enterprise grade storage equipment
• Experience with object-oriented programming languages.
• Strong experience with Python or other scripting languages
• Experience with or basic understanding of telecommunications systems concepts and/or signal processing
• Experience with Docker, Kubernetes, or other containerized systems.
• Experience with process improvement
• Experience with automated system deployments
• Existing Top-Secret SCI (TS/SCI) with Poly (Active within the last 24 months)

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 employerretirement 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 lifeand accident insurance,critical illnessinsurance, 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
• Relocation Eligibility - Eligible
• And More!

Onsite: Employees who are working in Onsite roles will work primarily onsite. Thisincludes all production and maintenance employees, as they are essential to thedevelopment of our products.

#AST

_ As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 145,600 USD - 276,800 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.

Click on this link to read the Policy and Terms