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We have an opportunity for an Principal Antenna and Microwave Engineer who is seeking to utilize their strong academic background and experience in RF/Microwave system theory and design, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs). Strong hands on experience with microwave testing techniques, including using spectrum analyzers, Real-time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).

Principal Antenna and Microwave Engineer

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. Our engineers work hands‑on with the latest test instrumentation, software, and automation technologies to integrate state‑of‑the‑art test capabilities for some of the most advanced engineering systems in the world.

Principal Electrical & Electronics (E&E) Engineer – Test Solutions – Onsite (Tewksbury/Andover, MA)

As part of the Strategic Communications Department, the Systems Engineering department supports a variety of communications systems including SATCOM (including AEHF, EHF, X-Band, Ka-Band, Ku-Band, C-Band, and PTW), Line-of-Site (LOS) Radio Terminals and Secure Switching Networks. As part of Collins Aerospace, Mission Systems organization, we specialize in developing advanced communication systems, ground and flight computers, sensors, cyber and software solutions, as well as providing integration of Mission Systems.

Systems Engineer (ONSITE)

We have an opportunity for an Senior Antenna and Microwave Engineer who is seeking to utilize their strong academic background and experience in RF/Microwave system theory and design, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs). Strong hands on experience with microwave testing techniques, including using spectrum analyzers, Real-time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).

Antenna and Microwave Engineer III

As part of the Strategic Communications Department, the Systems Engineering department supports a variety of communications systems including SATCOM (including AEHF, EHF, X-Band, Ka-Band, Ku-Band, C-Band, and PTW), Line-of-Site (LOS) Radio Terminals and Secure Switching Networks. • Outstanding communication skills (written, verbal, and presentation) and ability to effectively communicate with IPT leaders, hardware and software development engineers, specialty engineers, program managers, and our customers.

Senior Systems Engineer (ONSITE)

Work with a small team on cutting-edge research and development projects, focusing on AI based planning and scheduling (e.g., in the context of joint all domain command and control), novel compiler (e.g., LLVM passes) and/or OS-related (e.g., kernel modules, userland services) capability development. 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.

Research Software 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. Software Engineering positions include working on a variety of different tasks including implementing OS level configurations to support applications and cyber requirements.

Platform Engineer II

We have an opportunity for a Senior Principal Electrical Engineer who is seeking to utilize their strong academic background and experience in RF/Microwave system theory and design, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs). Strong hands on experience with microwave testing techniques, including using spectrum analyzers, Real-time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).

Sr Principal Antenna Microwave Engineer

In addition to base salary, our total compensation package may include participation in the company's annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility. AI‑enabled platform: Approved AI tooling is integrated into IDE/CI/CD with repo policies and auditability; 70% MAU among eligible engineers; MTTR down 20-30% via AI‑assisted triage; flaky‑test rate decreases through targeted, AI‑suggested fixes.

YEAR

Klaviyo Inc

Principal Engineer, Core Infrastructure

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. Collaborate with cross-functional teams, including software developers, system engineers, and test teams, to ensure seamless integration of application software into system platforms.

Platform Software Engineer II

Experience with microwave testing techniques, including using spectrum analyzers, Real-time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs). Experience of different topology trade-offs, process and active/passive component selection, system/sub-system level, gain-loss analysis and flowing down requirements from the system to the component level.

Principal RF Module Design/Development Engineer

As part of the PCS Department, the Systems Engineering department supports a variety of communications systems including SATCOM (including AEHF, EHF, X-Band, Ka-Band, Ku-Band, C-Band, and PTW), Line-of-Site (LOS) Radio Terminals and Secure Switching Networks. • Excellent communication skills (written, verbal, and presentation) and ability to effectively communicate with IPT leaders, hardware and software development engineers, specialty engineers, program managers, and our customers.

Senior Principal Systems Engineer (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. We have an opportunity for an electrical engineer who is seeking to utilize their strong academic background and experience in RF Design theory and design and testing, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs).

Senior RF Design Engineer

Senior Electrical & Electronics (E&E) Engineer - Test Solutions – Onsite (Tewksbury/Andover, MA)

We have an opportunity for an Antenna and Microwave Engineer who is seeking to utilize their strong academic background and experience in RF/Microwave system theory and design, including architectures, subsystems, components and Active Electronically Steered Antennas (AESAs). Strong hands on experience with microwave testing techniques, including using spectrum analyzers, Real-time Spectrum Analyzers (RSAs), Vector Network Analyzers (VNAs) and Performance Network Analyzer (PNAs).

Antenna and Microwave Engineer II

We research, develop, design, and integrate electrical (Analog, Power, RF/Microwave, and Digital) components, embedded and digital signal processing software, equipment, systems, sub-systems, and networks for the defense of domestic and foreign purposes. The Receiver, Exciter & Processing Architecture (REPA) department is composed of an energetic multi-disciplinary team working collaboratively with internal and external customers and programs to provide mission ready capabilities to our warfighters.

Receiver, Exciter & Processing Architecture Electrical 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.

Senior Principal Systems Engineer, Hardware Tech Lead Onsite

Experience working in a laboratory environment using logic analyzers, oscilloscopes, phase noise analyzer (PNA), spectrum analyzers, real time spectrum analyzers, and performance network analyzers to test and verify the functions of digital and RF signal circuits and subsystems. Senior Hardware Production Support Engineers are the liaisons between the design engineers, the factory, and suppliers and are responsible for working with Operations, Supply, Chain, Quality, and other Engineering disciplines to resolve production and transition to production issues.

Senior Hardware Production Support Engineer

Experience installing and configuring electronic hardware, software installations on hardware devices, network configurations, and operations of software in SIL/HWIL facility and having a general understanding of Data Distribution Service (DDS), Quality of Service (QoS) and other basic networking principles. Active and existing security clearance required on 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 Systems Engineer, Radar SIL Systems Onsite

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience. Please ensure the role type (defined below) is appropriate for your needs before applying to this role: Onsite: Employees who are working in Onsite roles will work primarily onsite.

Jobs in Cottleville, MO

Principal Antenna and Microwave Engineer RTX

Principal Electrical & Electronics (E&E) Engineer – Test Solutions – Onsite (Tewksbury/Andover, MA) RTX

Systems Engineer (ONSITE) RTX

Antenna and Microwave Engineer III RTX

Senior Systems Engineer (ONSITE) RTX

Research Software Engineer I - Onsite RTX

Platform Engineer II RTX

Sr Principal Antenna Microwave Engineer RTX

Principal Engineer, Core Infrastructure Klaviyo Inc

Platform Software Engineer II RTX

Principal RF Module Design/Development Engineer RTX

Senior Principal Systems Engineer (ONSITE) RTX

Senior RF Design Engineer RTX

Senior Electrical & Electronics (E&E) Engineer - Test Solutions – Onsite (Tewksbury/Andover, MA) RTX

Antenna and Microwave Engineer II RTX

Receiver, Exciter & Processing Architecture Electrical Engineer I - Onsite RTX

Senior Principal Systems Engineer, Hardware Tech Lead Onsite RTX

Senior Hardware Production Support Engineer RTX

Senior Systems Engineer, Radar SIL Systems Onsite RTX

Senior Systems Engineer - Air Traffic Solutions (Onsite) RTX

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