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AT Process Technologies (ATP) is a pioneering manufacturing company focused on the development and deployment of modular energetics production plants. Using breakthrough chemistry and automation that operates continuously and generates little to no waste, ATP is expanding energetics production to meet the munitions demands of the US and Allies safely, rapidly, and cost effectively. Summary ATP is building a core team of engineers to work alongside our Process and Chemistry R&D teams to develop an autonomous skidded system for next-generation energetics manufacturing. In this role you will own supplier relations, procurement, and component selection as they pertain to delivering project execution - the vendor-facing engineer who decides, alongside the team, what we buy, from whom, and on what terms to keep critical projects on schedule. You'll also aid in managing the project itself, helping keep scope, timelines, and priorities on track while working shoulder-to-shoulder with our Responsible and Test Engineers. The ideal candidate has previously worked on a team that delivers critical projects end-to-end through design, build, and execution and brings the engineering fundamentals to solve a wide range of problems quickly and rigorously. Key Responsibilities - Own supplier and vendor relationships end to end as the primary vendor-facing point of contact - Run the full procurement cycle: sourcing, quotes, purchase orders, delivery, and receipt - Negotiate pricing, terms, and lead times; resolve quality, delivery, and invoicing issues - Evaluate, qualify, and onboard new suppliers; maintain approved/preferred-supplier lists - Select components, parts, and materials that meet technical, quality, cost, and lead-time requirements - Work with the Process, Chemistry, and engineering teams to interpret requirements and spec the right components - Develop and maintain deep product, component, and application knowledge; advise on trade-offs and alternates - Own bills of materials (BOMs) and keep purchasing data accurate and current - Manage lead times, order tracking, expediting, and inventory to keep project schedules on track - Identify and mitigate supply risk through second-sourcing, alternates, and continuity planning - Work shoulder-to-shoulder with Responsible and Test Engineers through design, build, and execution - Keep procurement and project records complete, accurate, and audit-ready (quotes, POs, specs, BOMs, warranties, acceptance records) - Work closely with fabricators and machine shops to procure and manage the production of custom equipment and parts, ensuring specifications, timelines, and quality standards are met. - Aid in managing the project helping keep scope, timelines, and priorities on track - Contribute to test plans, technical documentation, and engineering reviews Required Qualifications - Bachelor's degree in engineering or a related technical field - 2+ years in procurement, supply chain, applications/component engineering, or a comparable vendor-facing role - Hands-on procurement and vendor negotiation experience, including component and material selection - Ability to read technical requirements and translate them into sourcing and component decisions - Demonstrated experience supporting critical projects end-to-end (design, build, and execution) - Strong engineering fundamentals and the ability to solve a wide range of problems quickly and rigorously - Strong communication, interpersonal, and organizational skills; able to manage multiple concurrent priorities - Strong documentation discipline and attention to detail Preferred Qualifications - Experience sourcing precision components, industrial automation/controls, fluid/process systems, or capital equipment - Background in energetics, chemicals, process/manufacturing, biotech/pharma, or another regulated industry - Familiarity with compliance frameworks (ITAR, CMMC, ISO, cGMP, or similar) - Ex