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Granite State Manufacturing is a leading contract manufacturer of large, complex, precision machined and welded components , supporting the US Navy in building submarines.    We specialize in high-mix, low-to-medium volume production , delivering precision, quality, and on-time performance on custom-engineered products. Our capabilities include: Large-format CNC machining Heavy fabrication and welding (MIG, TIG, FCAW, SAW) Assembly, inspection, and testing Program management for complex builds We are known for handling tight tolerances, complex geometries, and demanding customer specifications . Our work environment is supportive, providing what our people need to do great work. POSITION SUMMARY The Machining Process Engineer is responsible for developing, optimizing, and sustaining manufacturing processes for complex, large-scale CNC machined and welded components supporting government and defense programs. This role provides technical leadership for machining operations, driving improvements in quality, productivity, cost, and on-time delivery while ensuring compliance with customer, contractual, and regulatory requirements. Working in a high-mix, low-mid volume manufacturing environment, the Machining Process Engineer partners closely with Manufacturing Engineering, Programming, Quality, Operations, Welding Engineering, Project Engineering, and Program Management to successfully introduce new products, resolve manufacturing challenges, and continuously improve machining performance. ESSENTIAL FUNCTIONS AND RESPONSIBILITIES Develop, implement, and continuously improve robust machining processes for complex CNC milling, turning, boring, and multi-axis machining operations. Establish, document, and maintain standardized work instructions, machining methods, setup procedures, and best practices to ensure repeatable, efficient manufacturing. Lead process optimization initiatives focused on improving safety, quality, throughput, machine utilization, and overall equipment effectiveness (OEE). Design, develop, validate, and implement machining fixtures, workholding solutions, tooling strategies, and process improvements for large fabricated and machined components. Analyze machining performance, cycle times, spindle utilization, tooling consumption, and process capability to identify and implement cost-saving opportunities. Drive first-pass yield improvement through process capability studies, error-proofing, and manufacturing process controls. Investigate machining-related nonconformances using structured Root Cause Analysis methodologies and lead implementation of effective corrective and preventive actions. Collaborate with CNC programmers to optimize toolpaths, machining strategies, cutting parameters, and machine performance while reducing cycle time and improving process stability. Provide technical leadership and troubleshooting support for machinists, CNC programmers, supervisors, and production personnel to resolve complex manufacturing issues. Support quoting and estimating activities by validating machining methods, cycle times, tooling requirements, and manufacturing risks. Conduct time studies, capacity analyses, and process validation to improve production planning accuracy and manufacturing efficiency. Evaluate machine capabilities, process constraints, and manufacturing readiness to support production scheduling and customer commitments. Lead continuous improvement initiatives utilizing Lean Manufacturing, Six Sigma, and other operational excellence methodologies. Define and monitor key manufacturing performance metrics including first-pass yield, scrap, rework, cycle time, setup reduction, machine utilization, and process capability. Serve as the machining technical authority for evaluating and implementing new machining technologies, cutting tools, workholding systems, automation, and capital equipment. Partner with Manufacturing Engineering, Welding Engineering,