Senior Software Engineer [Platform & Infrastructure Services]

Raytheon; Fullerton (CA); On-site; USD 96,000 - 182,000; Full time

Benefits offered by this job

Relocation assistance

Total rewards package including health

Parental leave and flexible schedules

Job summary

RTX in Fullerton, CA is seeking a Senior Software Engineer to join the Platform and Infrastructure Services (IS) team within Air C2 and Battlefield Sensors software. You will help integrate COTS/FOSS platforms with Command and Control systems to deliver mission-critical capabilities.

The role requires a STEM degree with 5+ years' relevant experience, plus the ability to obtain and maintain a DoD Secret clearance.

Qualifications

• A STEM degree with at least 5 years of relevant experience is required.
• Experience deploying, automating, and administering mission-critical systems on Windows or Linux.
• Experience integrating COTS/FOSS products for enterprise deployments (Windows Server, RHEL).
• Must be able to obtain and maintain a DoD security clearance (US citizenship required).

Responsibilities

• Support multiple programs and platforms within the C2 software product line.
• Serve as an experienced IC growing into a technical SME within an Integrated Product Team.
• Install, configure, integrate, and test COTS/FOSS products; automate builds and deployments.
• Tune performance, harden security, and mentor junior staff where appropriate.
• Possible travel across the US and internationally; short-term trips to Saudi Arabia; on-site in Fullerton, CA.

Skills

System deployment

Automation scripting

COTS/FOSS integration

Windows Server

Red Hat Linux

Security clearance eligibility

Education

STEM degree + 5 years experience

Tools

Active Directory

Exchange

SQL Server

PowerShell

RDP

DNS

WSUS

Kickstart

bash

ssh/scp

Job description

Location

US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675

Date Posted

2026-08-11

Country

United States of America

Position Role Type

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements

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

DoD Clearance: Secret

Security Clearance Status

Active and existing security clearance required after day 1

At RTX, the world 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.

Senior Software Engineer

to join the Platform and Infrastructure Services (IS) team in the Air C2 (Command and Control) and Battlefield Sensors software department in Fullerton, California.

What you will do

Be part of the IS team that adopts DevOps processes and other best industry practices to integrate Commercial Off-the-Shelf platform products with existing and next-generation Command and Control systems to provide mission critical systems to our customers.

• Responsible for supporting multiple programs and multiple platforms within our C2 software product line
• Perform as an experienced individual contributor growing into the role of a technical subject matter expert, working as part of a high performing Integrated Product Team.
• Responsibilities include COTS/FOSS installation, configuration, integration, and testing, automation of software builds and deployments, system performance tuning, system security and hardening, and limited technical mentoring and oversight.
• There may be travel opportunities to sites across the United States and internationally to support system integration and test activities.
• Able to take short term business trips (between 2 weeks to 2 months, depending on the circumstances) to the Kingdom of Saudi Arabia to interface with our customer and other RTX colleagues.
• Work onsite in Fullerton, CA

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.
• Experience with system deployment, automation/scripting and administration supporting mission critical systems on Windows or Linux.
• Experience with the integration of COTS/FOSS products for enterprise software deployments such as the following:
• Windows Server (Active Directory, Exchange, SQL Server, PowerShell, RDP, DNS, WSUS)
• Red Hat Enterprise Linux (Kickstart, bash, ssh/scp, configuration / administration)
• 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.

Qualifications We Prefer

• Experience in software development or system administration.
• Experience with Cyber Security and System hardening
• Enterprise IT System Architecture (multiple sites/datacenters/WAN backbone)
• Microsoft certification, i.e., Microsoft Certified Solutions Associate (MCSA), Microsoft Certified Solutions Expert (MCSE).
• RedHat / Linux certification, i.e., Red Hat Certified System Administrator (RHCSA), Red Hat Certified Engineer (RHCE).
• Experience with VMware vSphere (ESXi / vCenter)
• Cybersecurity certification, i.e., CISSP, CISA, Security+.
• Excellent interpersonal and communication skills, including ability to produce and present technical documentation.
• Experience working in a team-focused development environment, such as Agile/SCRUM.

What We Offer

• A total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement, and work/life benefits; career development and recognition programs.
• Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.
• Relocation Eligible – Relocation assistance available

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 95,500 USD - 181,700 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.