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If you're passionate about solving complex technical challenges, learning emerging technologies, and developing software that directly supports mission success, this is an exciting opportunity to grow your career while making a meaningful difference. As a Full Stack Engineer, you'll contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend services and integrating secure, cloud-native solutions.

YEAR

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Mid-Level Software Engineer

IRecruitee

Raytheon is seeking a Principal Systems Security Engineer - Anti-Tamper/Program Protection (P4) to join our elite Systems Security Engineering (SSE) team within the Systems Engineering and Test Capabilities Directorate. This role is critical to safeguarding our Warfighters' technological advantages through the creation and integration of holistic security solutions, including Anti-Tamper, Cyber Security, Software Assurance and Supply Chain Risk Management.

RTX Corp

Principal Systems Engineer - Anti-Tamper / Program Protection (On-site Tucson, AZ) - P4

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HOUR

Has experience establishing bi-directional traceability (e.g., using tools like RETINA, DOORS, or Jira) linking source regulations → system requirements → design specifications → verification tests. Execute project deliverables—including requirements, risk, configuration management, defect management, and verification and validation—within the company-specific tool.

US Tech Solutions, Inc.

Senior Systems Engineer # 26-26918

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Experience developing and implementing MIL-STD-882E System Safety Program tasks and analyses, involving management (task series 100), analysis (task series 200), evaluation (task series 300), and verification (task series 400). Work across integrated product teams and engineering disciplines, including Systems Engineering, Software/Firmware, Electrical, and Hardware Engineering, to eliminate hazards or implement effective controls.

Senior System Safety Engineer

At this grade level, you will be expected to work autonomously, have expert or mastery level knowledge of the harness and interconnect domain, exercise strategic vision to influence functional and organizational strategies of the PCAS organization beyond assigned program work, and coach and review the work of other professionals. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or An Advanced Degree in a related field and minimum 5 years experience.

Principal Mechanical Engineer, Harness & Interconnect

Join Systems Engineering and Test Capabilities (SE&TC), a cross-disciplinary engineering team solving complex systems challenges across some of Raytheon's most advanced guided, autonomous and sensor-integrated technologies. If you've engineered complex vehicles, robotics platforms, automated machinery, aerospace systems or embedded technologies, many of the systems engineering skills you've developed can translate directly to this work.

Senior System Engineer

Interact and coordinate with program stakeholders, including program customers, government organizations, industry partners, contractors, suppliers, and other stakeholders to influence and guide program development & production efforts. The successful candidate will act as a key technical resource across production, collaborating with internal teams, leadership, and external customers to deliver innovative production solutions aligned with program objectives.

Senior Principal Lead Systems Engineer (Onsite)

The following 3 Engineering teams are all part of the Processing, Guidance, & Controls Center: Guidance, Navigation, and Control - develops aerodynamic models, autopilot designs, optimized motion strategies, and state estimation to meet mission objectives. Modeling, Simulation, and Analysis - delivers product‑level simulations that represent system components, subsystems, and operating environments, supporting the design, development, verification, and validation of our products and technologies.

Sr. Systems Engineer - Processing, Guidance, & Controls Engineers

Develop technical expertise in all areas of voice and data networks hardware and software interconnection and interfacing, such as switches, routers, firewalls, authentication servers, encryptors etc. Qualifications You Must Have: Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advanced Degree in a related field and minimum 3 years' experience.

Network Engineer, Principal Specialist, Tucson, AZ Onsite (3 openings)

Experience leading test activities including: Random and sine vibration, thermal and thermal-vacuum testing, temperature and humidity profiles, altitude and pressure testing, mechanical shock and E3 (EMI/EMC, lightning, grounding, bonding). Typically requires a Bachelor of Science in Electrical Engineering, Aerospace Engineering, Systems Engineering, Mechanical Engineering, Systems Engineering, Physics, Math or other related engineering disciplines.

Principal Systems Engineer - SM-3 Test Qualification Lead

Raytheon's Air Launched Effectors Department is currently searching for Mechanical Engineers to work on multi-disciplined teams supporting the design and/or production support of Air Launched Effectors products and subsystems. 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.

Mechanical Engineer II - ALE

Assist and participate in the requirements, design, development and testing of real-time embedded software, application software, and tools, to include development of new work products or enhancement of existing applications and systems. At RTX, the world 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 Engineer I

What You'll Be Doing Responsibilities will include: Developing and implementing one or more MIL STD 882E compliant system safety programs Performing MIL STD 882 System Safety Program tasks and analyses, involving management (task series 100), analysis (task series 200), evaluation (task series 300), and verification (task series 400). System Safety EngineerLocation:Onsite Tucson, AZEmployment Type:Full-Time, ContractWork Arrangement: 100% OnsiteLead the Safety of Mission-Critical Defense SystemsLegion Technical Solutions is seeking an experienced Principal System Safety Engineer to support one of our premier aerospace and defense clients.

Legion Technical Solutions

System Safety Engineer 4

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The Effector-Optics (EO) Department is currently seeking a Principal Cryogenics Systems Design Engineer with design and analysis skills, experience in cryogenics systems, component fabrication, and testing. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or an advanced degree in a related field and minimum 5 years' experience.

Principal Cryogenics Design Engineer

Today, Celestica delivers innovative supply chain solutions globally to customers in strategic two operating and reporting segments: Advanced Technology Solutions (ATS) and Connectivity and Cloud Solutions (CC): ATS: This segment serves customers in complex, regulated and high-reliability markets such as Industrial & Smart Energy, Aerospace & Defense, Semiconductor Capital Equipment, and HealthTech. You will help bridge the gap between "factory listings" and "field compliance," ensuring that our prefabricated, containerized E-houses, power skids, and modular systems are natively engineered to satisfy global regulatoryframeworks, accelerate deployment schedules, and help secure seamless permitting.

Celestica

Senior Certification & Compliance Engineer

Our experienced team of engineers has been instrumental in automating manual processes that enable our customers to increase production volumes and profit margins, and we believe in providing a superior customer experience by designating resources to a dedicated aftermarket team that is always ready to provide technical service and process support. This role combines hands-on manufacturing quality engineering with ownership of key Quality Management System (QMS) processes - including document change control, the calibration program, CAPA/root cause investigations, and supplier quality - while supporting internal audits and customer/supplier quality documentation.

Barry-Wehmiller Companies Inc

Quality Engineer

Systems Engineer II

With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart — not just as an industry leader, but as a driving force for impactful change. Quest Defense Systems and Solutions is actively hiring FPGA Engineers to design and verify digital logic solutions for major FPGA platforms including Xilinx, Altera, and Microsemi.

Quest Defense Systems & Solutions

FPGA Engineer

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

StratAcuity Staffing Partners Inc

Full Stack Software Engineer

Candidates will collaborate with multi-disciplined design teams across multiple projects to bring design concepts to fruition, providing rapid engineering, fabrication, and prototyping solutions throughout the entire product lifecycle. 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.

Solutions Engineer Jobs in Tucson, AZ

Mid-Level Software Engineer Leidos

Principal Systems Engineer - Anti-Tamper / Program Protection (On-site Tucson, AZ) - P4 RTX Corp

Senior Systems Engineer # 26-26918 US Tech Solutions, Inc.

Senior System Safety Engineer RTX Corp

Principal Mechanical Engineer, Harness & Interconnect RTX Corp

Senior System Engineer RTX Corp

Senior Principal Lead Systems Engineer (Onsite) RTX Corp

Sr. Systems Engineer - Processing, Guidance, & Controls Engineers RTX Corp

Network Engineer, Principal Specialist, Tucson, AZ Onsite (3 openings) RTX Corp

Principal Systems Engineer - SM-3 Test Qualification Lead RTX Corp

Mechanical Engineer II - ALE RTX Corp

Software Engineer I RTX Corp

System Safety Engineer 4 Legion Technical Solutions

Principal Cryogenics Design Engineer RTX Corp

Senior Certification & Compliance Engineer Celestica

Quality Engineer Barry-Wehmiller Companies Inc

Systems Engineer II RTX Corp

FPGA Engineer Quest Defense Systems & Solutions

Full Stack Software Engineer StratAcuity Staffing Partners Inc

Systems Engineer 1 RTX Corp

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