Top 42 Unix Systems Engineer Jobs in Merrimack, NH

Electrical Engineer II-Radar Processing and Network System Design -Onsite Tewksbury or Marlborough, MA
Raytheon —Tewksbury, MA
- $68,900 - $131,100 a year
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Bachelor of Science
- Paid holidays
- Disability insurance
14d
Principal Electrical Engineer-Radar Processing and Network System Design - Onsite Tewksbury/Marlborough, MA
Raytheon —Tewksbury, MA
- $107,500 - $204,500 a year
- Full-time
- Bachelor of Science
- Master's degree
- 8 years
- Paid holidays
- Disability insurance
14d
Senior Actuation Systems Electrical Engineer
Raytheon —Tewksbury, MA
- $86,800 - $165,200 a year
- Full-time
- Laboratory experience
- 3 years
- Analysis skills
- Paid holidays
- Disability insurance
14d
Principal Systems Security Engineer (Cyber) - P4 (Onsite)
Raytheon —Tewksbury, MA
- $107,500 - $204,500 a year
- Full-time
- Windows
- 8 years
- In-person
- Paid holidays
- Disability insurance
14d
Principal Software Engineer
Raytheon —Tewksbury, MA
- $107,500 - $204,500 a year
- Full-time
- Office
- Java
- 8 years
- Paid holidays
- Disability insurance
14d
Senior Software Development Engineer (Onsite)
Raytheon —Tewksbury, MA
- $86,800 - $165,200 a year
- Full-time
- 5 years
- System design
- Office
- Paid holidays
- Disability insurance
14d
Senior C/C++ Software Development Engineer
Raytheon —Tewksbury, MA
- $86,800 - $165,200 a year
- Full-time
- 5 years
- System design
- Senior level
- Paid holidays
- Disability insurance
14d
Systems Security Engineer II (Anti-Tamper/Program Protection) (Onsite) - P2
Raytheon —Tewksbury, MA
- $68,900 - $131,100 a year
- Full-time
- Mid-level
- Windows
- In-person
- Paid holidays
- Disability insurance
Entry Level Software Engineer
BAE Systems Inc. —Hudson, NH
- $64,926 - $110,374 a year
- Full-time
- Computer Science
- Windows
- Java
- Health savings account
- Paid holidays
6d
Junior Software QA Engineer
Clear Ballot Group —Nashua, NH
- $70,734.41 - $85,185.52 a year
- Full-time
- English
- In-person
- 1 year
- Health insurance
- Dental insurance
Quick Apply
1d
Software Support Engineer
Symbotic LLC —Andover, MA
- $96,000 - $132,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Engineering
- Health insurance
- Dental insurance
Quick Apply
13d
Senior Engineer (Andover, MA)
Infineon Technologies AG —Andover, MA
- $100,610 - $110,671 a year
- Email
- Background check
- Computer Science
- Pass drug screening
- Referral program
14d
Staff Electrical Engineer
Skyworks Solutions —Nashua, NH
- $114,400 - $220,200 a year
- Research
- Master's degree
- 8 years
- Employee stock purchase plan
- Health insurance
Software Engineer / Cloud Engineer
Solid State Scientific Corporation —Nashua, NH
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance
Software Engineer, Network Systems
Arista Networks —Nashua, NH
- Full-time
- Computer Science
- Bachelor of Science
- Mid-level
Quick Apply
7d
FAST Lab Systems Engineering Section Lead - Mgr II
BAE Systems Inc. —Merrimack, NH
- $149,603 - $254,317 a year
- Full-time
- Master's degree
- Doctor of Philosophy
- Travel
- Health savings account
- Paid holidays
FAST Labs Systems Engineering Section Lead
BAE Systems Inc. —Merrimack, NH
- $132,962 - $226,035 a year
- Full-time
- Management
- Master's degree
- 8 years
- Health savings account
- Paid holidays
Principal Engineer Pre-Silicon Digital Verification
Infineon Technologies AG —Andover, MA
- $146,240 - $201,080 a year
- Full-time
- Background check
- Pass drug screening
- US work authorization
Lead Software Engineer, Network Systems
Arista Networks —Nashua, NH
- Full-time
- Computer Science
- Bachelor of Science
- 3 years
Quick Apply
7d
FPGA Design DSP Lead
BAE Systems Inc. —Nashua, NH
- $149,603 - $254,317 a year
- Full-time
- Management
- Bachelor's degree
- Mentoring
- Health savings account
- Paid holidays

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Unix Systems Engineer jobs near Merrimack, NH

Electrical Engineer II-Radar Processing and Network System Design -Onsite Tewksbury or Marlborough, MA

Raytheon -
Tewksbury, MA

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Job Details

Full-time
$68,900 - $131,100 a year
14 days ago

Benefits

Paid holidays
Disability insurance
Health insurance
Dental insurance
Flexible spending account
Paid time off
Parental leave
Employee assistance program
Vision insurance
401(k) matching
Flexible schedule
Life insurance

Qualifications

Engineering development testing
Electronics test plan development
UNIX
Research
System design for system development
Computer hardware
Electrical engineering training
Design engineering
Product design
System development
Oscilloscopes
Experience in a research and development laboratory environment
Test Planning (Quality assurance practices)

Full Job Description

Date Posted:

2026-04-20

Country:

United States of America

Location:

US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET 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 Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

The Radar Digital Products Department is seeking an Electrical Engineer with strong COTS computing and networking background to join our Hardware and Infrastructure team implementing the next generation RADAR solutions.

What You Will Do

The Electrical Engineer who will work with Product Leads and other team members on a variety of tasks related to the design and development of systems using Commercial-Off-The-Shelf (COTS) computing and networking products.

Radar processing and network system design (e.g. X86-based processors)
Research and selection of servers, workstations, add-in interface cards, storage devices, networking and other COTS hardware
BIOS and operating system configuration definition
System prototyping and integration in the lab

This position can be for the Tewksbury, MA location or the Marlborough, MA location.

Qualifications You Must Have

Bachelor of Science degree in Electrical Engineering or equivalent discipline
Minimum of 2 years of professional experience in the following areas (an advanced degree in a related field may be substituted for two additional years of experience)
Experience with emerging and legacy hardware and software, including Unix and Linux operating systems
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
Experience working in a lab environment and operating standard test equipment including oscilloscopes, processor bus analyzers, emulators, and data capture tools, etc.

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
Knowledge of all Microsoft Office products (Word, Excel, Visio, Outlook, and PowerPoint)
Willingness to support occasional domestic travel and potential international travel
Existing security clearance

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.

This position is eligible for relocation.

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.

Clearance Information: This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm

Raytheon Information - https://www.youtube.com/watch?v=H26bUpq99zo

#LI-CV1

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 68,900 USD - 131,100 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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Refine Your Search

Unix Systems Engineer jobs in Merrimack, NH

Electrical Engineer II-Radar Processing and Network System Design -Onsite Tewksbury or Marlborough, MA

Principal Electrical Engineer-Radar Processing and Network System Design - Onsite Tewksbury/Marlborough, MA

Senior Actuation Systems Electrical Engineer

Principal Systems Security Engineer (Cyber) - P4 (Onsite)

Principal Software Engineer

Senior Software Development Engineer (Onsite)

Senior C/C++ Software Development Engineer

Systems Security Engineer II (Anti-Tamper/Program Protection) (Onsite) - P2

Entry Level Software Engineer

Junior Software QA Engineer

Software Support Engineer

Senior Engineer (Andover, MA)

Staff Electrical Engineer

Software Engineer / Cloud Engineer

Software Engineer, Network Systems

FAST Lab Systems Engineering Section Lead - Mgr II

FAST Labs Systems Engineering Section Lead

Principal Engineer Pre-Silicon Digital Verification

Lead Software Engineer, Network Systems

FPGA Design DSP Lead

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