> Markdown version of [/jobs/ext/3288842-senior-hardware-engineer-essm-launcher](https://www.wearedevelopers.com/jobs/ext/3288842-senior-hardware-engineer-essm-launcher). 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 Hardware Engineer - ESSM Launcher - **Company:** RTX - **Location:** Portsmouth, RI, United States - **Experience:** Expert - **Salary:** $86,800.0 - $165,200.0 - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Adobe InDesign, Software Requirements Analysis, Creo - **Published:** September 28, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=1d08d68c898b4491 ## About the Role The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience. * Experience in leading small development efforts and teams with cost and schedule responsibility * Experience with GD&T (ASME Y14.5), Tolerance Analysis, metal fabrication (machining, sheet metal), assembly joining techniques (fasteners, rivets, inserts) * Experience with CAD modeling and Engineering Documentation practices. * The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance., * Experience in specification, design, development, production and testing of electronics systems. Specific knowledge of packaging electronic equipment to meet physical and environmental constraints is preferred * Experience with technical execution and development of proposal cost and technical volumes. * Experience with or certifications to write engineering basis of estimates (BOEs) * Ability to support international travel (~30%) to customer sites or suppliers * Experience with PTC CREO and PDM * Experience and certifications in Earned Value Project Management * Demonstrated ability to solve difficult problems while working as part of a cross functional team * Strong communication skillset with ability to articulate, in both oral and written form, to technical, non-technical and management audiences ## Description The UES department is looking for a full-time Senior Mechanical Engineer to become a member of the ESSMĀ® Missile Launcher team. This role will be on-site and located in Portsmouth, RI. What You Will Do * Perform mechanical design, development, and documentation of components, sub-assemblies, and major end items for defense system equipment in accordance with system requirements. * Collaborate across multiple disciplines/functions (i.e. structural/thermal analyses and electrical engineering) to solve complex technical challenges in a fast-paced, team environment. * Support the factory and suppliers with product integration * Participate in design peer reviews, resolving action items, and conduct trade studies to make sound technical decisions. * Work with limited supervision and meet commitments for assigned schedule, financial, and technical goals.