Senior Unix Engineer Jobs in Smithfield, RI (NOW HIRING)

Date Posted:

2026-07-22

Country:

United States of America

Location:

US-RI-PORTSMOUTH-PS3 ~ 1847 W Main Rd ~ NIMITZ WEST BLDG

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'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. 

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

Job Summary:

The Undersea and Electronics Systems (UES) Department in Portsmouth, RI is seeking a Senior Electrical Engineer with strong COTS computing and networking background to join our Hardware and Infrastructure team implementing the next generation RADAR solutions.  The desired candidate has a current Secret clearance, is highly technical, and able to work with minimal oversight as well as the ability to manage projects. This individual will act as a key liaison between cross-functional teams, ensuring technical solutions are delivered on time, within scope and meet quality standards.

Your qualifications could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you’re passionate about what you could accomplish here, we’d love to hear from you.

What You Will Do:

• Design COTS hardware infrastructure systems (e.g. X86-based processors) 
• Research and selection of servers, workstations, add-in interface cards, storage devices, and other COTS hardware
• Engineer BIOS and operating system configuration definitions
• Work in a lab environment and operate standard test equipment including oscilloscopes, processor bus analyzers, emulators, and data capture tools, etc.
• System prototyping and integration in the lab
• Collaborate in development with hardware engineering disciplines, supply chain, suppliers, field engineering, on-site installation and trades, and Customers to develop and deliver safety critical systems
• Support occasional domestic travel and potential international travel

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant or An Advanced Degree in a related field and minimum 3 years’ experience
• Experience with emerging and legacy hardware and software, including Unix and Linux operating systems
• Experience working in a lab environment and operating standard test equipment including oscilloscopes, processor bus analyzers, emulators, and data capture tools, etc.
• Experience with taking a system design concept from the block diagram or requirements level and developing a complete COTS-based hardware design and then verifying the design via integration and test plans and activities
• U.S. citizenship is required as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer:

• Experience developing and implementing computing, networking, and information technology infrastructure through a rigorous design and documentation process
• Experience collaborating in development with hardware engineering disciplines, supply chain, suppliers, field engineering, on-site installation and trades, and Customers to develop and deliver safety critical systems
• Current or in-progress computing/networking certification(s) (e.g. CCNA, AWS, CISSP)
• Experience with RADAR system hardware
• Experience with Firewall design and configuration
• Experience implementing Security Technical Implementation guides and network hardening
• Experience with system level hardware integration and troubleshooting skills
• Experience in agile hardware and software development and management using SCRUM.
• Knowledge of all Microsoft Office products (Word, Excel, Visio, Outlook, and PowerPoint)

What We Offer:

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
• 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.
• Relocation Offered Based on Eligibility.

Learn More & Apply Now:

Please consider the following role type definition as you apply for this role.  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 86,800 USD - 165,200 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.

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