> Markdown version of [/jobs/ext/3751196-senior-systems-engineer-software-systems-onsite](https://www.wearedevelopers.com/jobs/ext/3751196-senior-systems-engineer-software-systems-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Engineer - Software Systems (Onsite) - **Company:** RTX - **Location:** Tucson, AZ, United States - **Experience:** Expert - **Salary:** $86,800.0 - $165,200.0 - **Contract:** Permanent contract - **Skills:** C (Programming Language), Agile Methodology, Systems Engineering, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Configuration Management, Embedded Software, Python (Programming Language), MATLAB, Performance Tuning, Systems Development Life Cycle, Requirements Management, Software Engineering, Software Requirements Analysis, Software Systems, Verification and Validation (Software), Software Verification - **Published:** October 15, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9111812/senior-systems-engineer-software-systems-onsite ## About the Role * Typically requires a Bachelor's in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 5 years of prior engineering experience. * Experience in Systems Engineering * Experience in Model-Based Systems Engineering (MBSE), Requirements Development, Requirements Management, Requirements Verification, or Integration and Test for software products Qualifications We Prefer * Masters or PhD in Engineering, Math or Physics * Experience using Agile framework development methods / processes * Experience with Agile, Model-Based Systems Engineering (MBSE), and/or Digital Engineering * Experience presenting analytical and technical presentations * Experience evaluating and mitigating technical risks * A self-starter who can take on task with limited guidance * Customer focus and collaboration skills * Experience with performance analysis * Experience with DOORS and/or cPDM * Experience using Azure DevOps methods/tools * Experience with Matlab, C, C#, C++, Python * Ability to perform trade studies to optimize system performance * Understanding of Systems Engineering Product Development Cycle * Familiarity with system safety, reliability, and configuration management * Experience working in an integration lab, test facility, or in the field supporting integration and/or verification. * Experience evaluating systems using simulated environments * Experience generating technical documentation such as trade studies, test plans, procedures or technical reports. * Experience in integration with test equipment, telemetry data analysis tools, and missile systems host platforms ## Description As a Senior Systems Engineer you will support missile programs as a Software-focused Responsible Systems engineer, contributing directly to successful software requirements and integration for both fielded and development missile systems. These responsibilities include managing system and subsystem requirements, providing SE technical oversight during integration and test activities, participating in verification and validation efforts for the system, and providing SE expertise in troubleshooting and failure investigations. The Software-Systems role requires a high level of technical proficiency in the area of embedded software design, integration and test. This included multi-disciplined coordination, and establishing and maintaining relationships with the embedded software team and customer technical community. In this role, you will have the opportunity to work on an effectors project pertinent to the systems lifecycle. This role is 100% on-site at our Tucson, AZ campus with the possibility of occasional travel. What You Will Do * Update and maintain all system and subsystem level requirements specifications for embedded software, configurable logic and/or test systems software * Model the system and the system development and production processes using Cameo * Conduct Trade Studies and present results to customers * SE technical contributor for verification and validation efforts, ensuring all requirements are being assessed * Work closely with the Systems, Software, Configurable Logic and Test teams on a variety of program technical tasks * Participate in technical conversations with the customer * Become a knowledgeable and 'go-to' Systems Engineer for the software centric program capabilities * Help to onboard new team members, mentor, and guide them using core Systems Engineering skills