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Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. May require up to a one (1) year assignment at a different location, such as shipyard locations (i.e. Huntington Ingalls Industries (HII) Shipyard in Pascagoula, MS; Navy’s Land Based integration facility in Mount Laurel, NJ).

Principal Radar Receiver / Exciter Integration & Test Engineer

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Perform Reliability, Availability, and Maintainability (RAM) analyses including mean time between failure (MTBF), mean time to repair (MTTR), RAM Modelling, and Failure Modes Effects, and Criticality Analysis (FMECA). 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.

Life Cycle Engineer I- Onsite

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. 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.

LTAMDS Development Execution Chief Engineer (Onsite)

This role will support both functions of Reliability, Availability, and Maintainability (RAM) Engineering and Failure Reporting Analysis, and Corrective Action System (FRACAS) Engineering and will be responsible for executing the RAM/FRACAS program activities such as: Conducting RAM analyses, including reliability predictions and maintainability predictions. 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.

Senior Reliability Engineer

The Systems Engineering and Test Capabilities (SE&TC) organization is the central focus for Mission Systems Integration activities within Raytheon, responsible for defining customer needs, functional and product architecture, requirements definition and decomposition, Model Based Systems Engineering (MBSE), algorithm development and system performance. Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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.

Systems Engineer II Onsite

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. 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.

Senior Principal RF Design Engineer

Familiarity with defense logistics, maintenance, and supportability frameworks, such as Integrated Logistics Support (ILS) and Product Support principles, DoD/DFAR regulations or MIL-STD/MIL-PRF requirements. Collaborate with cross-functional teams to track hardware components through factory production or repair pipelines and help analyze spare parts requirements to ensure continuous operational readiness.

Lifecycle Systems Engineer II - Onsite

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. Participate in collaborative, cross-discipline integrated product teams, employ agile software development techniques and resources to develop, test, and integrate complex software and systems solutions for aerospace and defense applications.

Senior Software Engineer/Developer - Tewksbury/Woburn, MA

Reliability Engineer II

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. Eight (8) or more years of directly related experience in propulsive technology and its application to solid or liquid, Air Breathing systems (turboprop, turbine, scramjet/ramjet, RDE, VFDR, fuel bladders, fuel systems )and/or mono propellant propulsion systems.

Senior Engineer – Solid Propulsion

Working in an agile, cross-functional environment alongside systems, mechanical, and software engineers, you will contribute across the full lifecycle—from initial architectural concepts and algorithm modeling to hands-on hardware integration and production release. In this role as a Digital Electrical Engineer I, you will design and develop next-generation circuit card assemblies (CCAs) and FPGA-based solutions utilizing leading industry architectures including AMD, Altera, and Microchip.

FPGA/ Digital Design Engineer I - Onsite

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date 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. 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.

Principal Systems Engineer, Radar Data Analysis - AN/TPY-2

Senior Systems Engineer – AN/TPY-2 Team Firefly

The Software Product Assurance Center’s Software Security Sensors and Effectors Department is seeking a highly skilled individual to join our software team where you will employ Agile development techniques on embedded targets to continuously develop and deploy critical capabilities to the warfighter. 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.

Senior Program Protection Engineer (Embedded Software Engineer)

As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support. Our employees work on the world's most advanced software and electronics - from developing world-class autonomous mission management capabilities to advanced data analytics to support the warfighters and the intelligence community.

YEAR

BAE Systems Plc

Senior Principal Model Based Systems Engineer

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The Raytheon Industry 4.0 - Connected Factory Intelligence & Automation (CFIA) organization has an immediate career-growth opportunity for an enthusiastic, highly motivated, and innovative Automation Systems Engineer (ASE) to accelerate the deployment of custom digital automation solutions across our manufacturing sites. You'll support innovative manufacturing solutions including machine and sensor connectivity, integration with enterprise systems, real-time process data visualization and analytics, enhanced product traceability, and automation of digital workflows across manufacturing operations.

RTX Corp

Sr. Digital Project Engineer III

As an Electrical Engineer II You would apply your skills to contribute to the requirement flow down, verification, environment stress screening and design-to-unit production cost (DTUPC) management for hardware in programs for Naval Power and Land and Air Defense Systems strategic business units. Working as an advocate for Hardware Engineering, you will coordinate between Systems Engineering and the Hardware Team to allocate the requirements, compile verification artifacts working with electrical (e.g.

Electrical Engineer II (Onsite)

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. 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.

SW Integration and Test Engineer - Principal SW Engineer

The position supports a variety of hardware technologies, including printed circuit board assemblies (PCBAs), cable and wire harnesses, precision-machined components, mechanical enclosures, and integrated electromechanical systems . This role serves as a critical link between Engineering and Manufacturing, translating complex engineering drawings, Bills of Materials (BOMs), and technical specifications into clear, executable manufacturing instructions that support efficient, high-quality prototype builds.

HOUR

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Connexion Systems + Engineering

Electromechanical Engineer  Manufacturing & Prototype Development

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The SE LRR department provides subject matter expertise for concept development, architectural design, requirements generation & flow-down, modeling and simulation, systems analysis, integration, test and evaluation of world-class Missile Defense & Sensor Systems to be achieved through our people, processes, technology and performance. 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.

Security Engineer Jobs in Merrimack, NH

Principal Radar Receiver / Exciter Integration & Test Engineer RTX

Life Cycle Engineer I- Onsite RTX

LTAMDS Development Execution Chief Engineer (Onsite) RTX

Senior Reliability Engineer RTX

Systems Engineer II Onsite RTX

Senior Principal RF Design Engineer RTX

Lifecycle Systems Engineer II - Onsite RTX

Senior Software Engineer/Developer - Tewksbury/Woburn, MA RTX

Reliability Engineer II RTX

Senior Engineer – Solid Propulsion RTX

FPGA/ Digital Design Engineer I - Onsite RTX

Principal Systems Engineer, Radar Data Analysis - AN/TPY-2 RTX

Senior Systems Engineer – AN/TPY-2 Team Firefly RTX

Senior Program Protection Engineer (Embedded Software Engineer) RTX

Senior Principal Model Based Systems Engineer BAE Systems Plc

Sr. Digital Project Engineer III RTX Corp

Electrical Engineer II (Onsite) RTX Corp

SW Integration and Test Engineer - Principal SW Engineer RTX Corp

Electromechanical Engineer Manufacturing & Prototype Development Connexion Systems + Engineering

Senior Principal Systems Engineer, Surveillance Radar Program Tech Lead RTX Corp

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