RTX
RTX integrates the capabilities of Collins Aerospace, Pratt & Whitney, and Raytheon to deliver cutting‑edge aerospace and defense solutions.
Company facts
- Founded
- 2020
- Employees
- 10,001
- Headquarters
- United States
- CEO
- Christopher T. Calio
- Type
- Enterprise
About
RTX integrates the capabilities of Collins Aerospace, Pratt & Whitney, and Raytheon to deliver cutting‑edge aerospace and defense solutions. The company designs and manufactures advanced aircraft engines, aerostructures, avionics, and precision weapons, while also providing cyber‑security, radar, and command‑and‑control systems. Its portfolio spans everything from aircraft propulsion and auxiliary power units to missile defense and space technologies, supported by program management and training services. By combining deep technical expertise with a global manufacturing footprint, RTX addresses complex challenges in aviation, defense, and space, positioning itself as a trusted partner for governments and commercial customers worldwide.
Senior Antenna & RF Sensor Test Range Architect & Integrator
Senior engineer designing and integrating antenna, radome, and radar cross-section test ranges/chambers for defense systems, using RF measurement theory and simulation tools.
Conversion: RSE - Systems Engineer I - Secure Tactical Comms (Onsite)
Date Posted: 2026-08-13

 Country: United States of America

 Location: US-IA-CEDAR RAPIDS-137 ~ 855 35Th St NE ~ BLDG 137

 Position Role Type: Onsite

…
Firmware Engineer II- Active Secret (Onsite)
Design and verify FPGA/SoC firmware in VHDL for aerospace/defense systems, including HDL circuits, test benches, and lab integration; requires active U.S. Secret clearance.
Systems Engineer I
Date Posted: 2026-08-13

 Country: United States of America

 Location: US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1

 Position Role Type:…
System Engineer I
Date Posted: 2026-08-13

 Country: United States of America

 Location: US-MA-TEWKSBURY-TB2 ~ 50 Apple Hill Dr ~ SUDBURY BLDG, Tewksbury Tb2 200 Sudbury

 Position Role…
Senior Principal RF Design Engineer
Designs and tests RF transmitters, receivers, and exciters for radar and datalink systems, using tools like ADS and HFSS, while collaborating with cross-functional teams.
Principal RF Design Engineer
Designs and tests RF transmitters, receivers, and exciters for radar and datalink systems, using tools like ADS and HFSS, while meeting strict mechanical and environmental constraints.
EO/IR Principal Systems Engineer
Date Posted: 2026-08-13

 Country: United States of America

 Location: US-TX-PLANO-465 ~ 465 Independence Pkwy ~ INDEPENDENCE

 Position Role Type:…
Radar Principal Systems Engineer
Date Posted: 2026-08-13

 Country: United States of America

 Location: US-TX-PLANO-465 ~ 465 Independence Pkwy ~ INDEPENDENCE

 Position Role Type:…
Airfoil Tool Developer Principal Engineer P4 (onsite)
Date Posted: 2026-08-12 Country: United States of America Location: US-CT-EAST HARTFORD-ETC ~ 400 Main St ~ BLDG ETC Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S.…
Senior Software Engineer - Secure Communications
Design and develop secure embedded cryptographic software for military communications, integrating C++/Rust, Python, and embedded Linux in a classified environment.
Radar Systems Engineer II
Date Posted: 2026-08-12

 Country: United States of America

 Location: US-CA-EL SEGUNDO-R01 ~ 2000 E Imperial Hwy ~ BLDG R01

 Position Role Type:…
Senior Software Engineer
Build and certify real-time embedded C software for aerospace electric power systems, collaborating with teams to ensure mission-critical reliability and compliance with DO-178C standards.
Principal Electrical Engineer - FPGA Verification
Principal Electrical Engineer verifies FPGA-based radar designs using SystemVerilog, UVM, and industry simulators, ensuring functional correctness and coverage for control/signal-processing applications.
Principal Systems Engineer, Radar Data Analysis - AN/TPY-2
Date Posted: 2026-08-12

 Country: United States of America

 Location: US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG

 Position Role Type:…
Senior Software Integration Engineer (on-site)
Date Posted: 2026-08-12

 Country: United States of America

 Location: US-PA-STATE COLLEGE-5A ~ 302 Science Park Rd ~ BLDG 5A

 Position Role Type:…
Software/Automation Engineer
Date Posted: 2026-08-12 Country: Philippines Location: PH-BTG-TANAUAN CITY-BQ4 ~ First Philippine Industrial Park ~ BLDG Q4 Position Role Type: Hybrid At RTX, the world's largest aerospace and defense company,…
Senior Electrical Engineer - FPGA Verification
Senior Electrical Engineer verifies FPGA-based radar designs using SystemVerilog/UVM testbenches and industry simulators, ensuring functional correctness and coverage.
Sr. Systems Security Engineer (Onsite - Cedar Rapids, IA)
Senior security engineer designs and embeds secure system development practices for aerospace/defense products, including threat modeling, fuzzing, penetration testing, and RMF compliance in Cedar Rapids, IA.
Principal Systems Engineer, Radar System Integrator Onsite
Date Posted: 2026-08-12 Country: United States of America Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements:…