> Markdown version of [/jobs/ext/3077681-sr-principal-engineer-systems-engineering-onsite](https://www.wearedevelopers.com/jobs/ext/3077681-sr-principal-engineer-systems-engineering-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). --- # Sr.Principal Engineer, Systems Engineering (Onsite) - **Company:** RTX - **Location:** East Hartford, CT, United States - **Experience:** Expert - **Salary:** $132,400.0 - $251,600.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Systems Engineering, Confluence, JIRA, Rhapsody, Systems Modeling Language, Systems Integration, MagicDraw, SC Clearance - **Published:** September 25, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3397728727&tx=JR5347FFF&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role The ability to obtain and maintain a U.S. government issued security clearance is required.?, * Bachelor's degree in engineering and 10+ years of relevant experience, or an Advanced Degree with 7+ years of relevant experience * Experience leading small cross functional engineering teams * Experience in systems engineering roles, or familiarity with systems engineering methods * Experience using a SysML tool, such as IBM Rhapsody , Cameo/Magic Draw , or equivalent * The ability to obtain and maintain a U.S. government issued security clearance is required. Qualifications We Prefer: * Background in propulsion, gas turbine systems, or mission-critical aerospace applications. * Proficiency in Cameo Systems Modeler or Cameo Enterprise Architect * Knowledge of MBSE best practices * Certification in systems engineering and/or SysML (e.g., INCOSE CSEP, OCSMP) * Proficiency with Agile development methodologies and tools (e.g., Jira, Confluence) * Experience writing proposals, generating basis of estimates * Active Secret clearance ## Description Pratt and Whitney Engine Design and Systems Integration (EDSI) is seeking a Senior Principal Systems Engineer, with Model Based Systems Engineering (MBSE) experience, to support next generation propulsion programs. The candidate will be responsible for leading the development, integration, and maturation of system models for one or more military engine programs. Candidate will also be involved in Pratt & Whitney's digital transformation initiatives to serve as a technical leader, mentor, and strategic contributor driving MBSE process improvements in systems engineering. This position provides the opportunity to influence and develop cutting-edge digital engineering capabilities for military propulsion programs. Candidate responsibilities will be commensurate with their background, experience, and education. * Lead the development of Systems Engineering Models as a subject matter expert in order to perform systems engineering tasks including: Requirements analysis, defining logical and physical architectures, defining interfaces, verification planning, trade studies, system integration * Coordinate with leadership, team members, and other teams in a highly matrixed organization * Participate in customer and/or internal gate reviews throughout the product lifecycle * Coordinate extended team model development efforts and enforce engineering best practices and compliance with EDSI standard work, In addition to transforming the future of flight, we are also transforming how and where we work. We've introduced role types to help you understand how you will operate in our blended work environment. This role is: Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance workers, as they are essential to the development of our engines. Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee's personal responsibility. 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. ## Related Videos - [Designing UX for SRE Agents in High-Stakes Incidents](https://www.wearedevelopers.com/videos/100003-designing-ux-for-sre-agents-in-high-stakes-incidents) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [The user in the eye of the Cargo1492 storm](https://www.wearedevelopers.com/videos/96-the-user-in-the-eye-of-the-cargo1492-storm) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)