Process Engineer Sr. (Manufacturing)
About the RoleOne Stop Systems, Inc. (OSS) is seeking a Senior Manufacturing Process Engineer for its onsite Escondido/San Diego, California location. This hands-on individual contributor will develop, document, implement, and continuously improve manufacturing processes for OSS's high-performance computing products used in AI/ML, sensor fusion, autonomy, commercial applications, and defense environments.The Senior Manufacturing Process Engineer will work across Engineering, Production, Quality, Planning, Purchasing, Test, and external manufacturing partners to support new product introduction, production readiness, process improvement, manufacturing data accuracy, and operational performance. Success in this role requires strong manufacturing engineering experience, structured problem-solving, Lean methodologies, and the ability to turn production data into practical improvements in a high-mix, low-volume electronics and electromechanical manufacturing environment.Key ResponsibilitiesDevelop, document, implement, and continuously improve manufacturing processes across receiving, kitting, assembly, integration, production test, final inspection, and shipping.Lead the manufacturing workstream for new product introduction (NPI) and production readiness reviews.Provide design-for-manufacturability (DFM) and design-for-assembly (DFA) feedback.Support pilot builds and first builds, identify manufacturing risks, and drive readiness actions to closure.Create and maintain controlled manufacturing documentation, including:Visual work instructionsAssembly proceduresRoutingsStandard operationsManufacturing notesLabor standardsProcess verification recordsDesign, develop, validate, and improve production fixtures, jigs, templates, tooling, ergonomic workstations, and material presentation methods.Conduct time studies, cycle-time analysis, line balancing, and workflow analysis.Establish and maintain labor standards, routing times, resource assignments, and capacity assumptions in ERP/MES systems.Apply Lean and Six Sigma methodologies, including 5S, standardized work, value-stream mapping, Kaizen, waste elimination, root-cause analysis, and DMAIC.Analyze inspection yield, defects, rework, scrap, labor variance, RMA trends, and other manufacturing data.Lead or support cross-functional corrective actions and verify their effectiveness.Improve manufacturing data quality and usability in Infor CloudSuite Industrial/Factory Track or related ERP/MES systems.Support demand and capacity planning by identifying constraints, validating routing and resource data, modeling labor requirements, and recommending load-leveling, staffing, tooling, or outsourcing actions.Evaluate manufacturing automation, capital equipment, and process technology opportunities.Prepare technical and cost justifications, coordinate implementation, and validate performance before production release.Support contract manufacturers and special-process suppliers by defining manufacturing documentation, tooling, quality, traceability, and process requirements.Participate in supplier launch readiness and process-improvement activities.Train assemblers, technicians, inspectors, and other users on new or revised processes.Verify that standardized work is understood, effective, and sustained.Support AS9100, ISO 9001, and ISO 14001 requirements through documentation control, objective evidence, process discipline, equipment maintenance and calibration coordination, traceability, audit support, and corrective action.Identify and address manufacturing safety, ergonomic, and environmental risks.Provide project updates, risk assessments, recommendations, and implementation status to Operations leadership and cross-functional stakeholders.Perform other duties as assigned.Required QualificationsBachelor's degree in Manufacturing, Industrial, Mechanical, Electrical, or a related engineering field, or equivalent relevant education and experience.Minimum 7 years of manufacturing or process engineering experience in a high-mix, low-volume electronics, electromechanical, aerospace, defense, or similarly regulated manufacturing environment.Hands-on experience with:New product introductionProduction-readiness activitiesFirst buildsWork-instruction developmentManufacturing routingsTime studiesLabor standardsTooling or fixture developmentWorking knowledge of Lean manufacturing and structured problem-solving.Strong root-cause analysis, data analysis, and corrective-action skills.Ability to convert operational data into practical process improvements.Ability to read and interpret engineering drawings, bills of material, engineering change notices, specifications, acceptance requirements, and other technical documentation.Experience with ERP and MES systems.Proficiency with Microsoft Office and data-visualization tools.Ability to manage multiple priorities and drive cross-functional actions to completion in a fast-paced manufacturing environment.Ability to work effectively on the manufacturing floor.Excellent written and verbal communication, organizational, project-management, and interpersonal skills.Preferred QualificationsLean Six Sigma Green Belt or comparable certification.Experience with Infor CloudSuite Industrial/SyteLine and Factory Track.Experience with Power BI, Power Apps, Power Automate, or related tools.Experience supporting AS9100 or ISO 9001 quality systems.Knowledge of ISO 14001 and controlled manufacturing documentation.Skills & CompetenciesManufacturing process engineeringProcess development and optimizationNew product introduction (NPI)Production readinessDesign for manufacturability (DFM)Design for assembly (DFA)Lean manufacturingSix Sigma5S and standardized workValue-stream mappingKaizenDMAICRoot-cause analysisCorrective actionData analysisTime studies and cycle-time analysisLine balancingManufacturing routingsLabor standardsTooling and fixture developmentERP/MES systemsManufacturing automationCapacity planningQuality systemsTechnical documentationProject managementCross-functional collaborationTechnical communicationContinuous improvementSafety and ergonomicsCost and business awarenessEducation & ExperienceEducationBachelor's degree in Manufacturing, Industrial, Mechanical, Electrical, or related engineering field.Equivalent relevant education and experience may be considered.ExperienceMinimum 7 years of manufacturing or process engineering experience.Experience should be in a high-mix, low-volume electronics, electromechanical, aerospace, defense, or similarly regulated manufacturing environment.Demonstrated hands-on experience with NPI, production readiness, first builds, manufacturing documentation, routings, time studies, labor standards, and tooling or fixture development.Work Arrangement & ScheduleLocation: Escondido/San Diego, California, United StatesWork Arrangement: OnsiteEmployment Type: Not specified in the source job description.The role is a hands-on individual contributor position that requires effective work on the manufacturing floor.Specific weekly hours and shift schedule are not specified in the source job description.Compensation & BenefitsAnnual Salary: $108,000–$132,000Additional compensation and benefits include:Potential for stock equity401(k) matchingMedical insuranceDental insuranceVision insuranceThree weeks of PTO11 paid holidaysAbout One Stop Systems, Inc.One Stop Systems, Inc. (NASDAQ: OSS) is a San Diego-based publicly traded technology company and global provider of enterprise-class compute solutions for AI/ML, sensor fusion, and autonomy at the edge.OSS designs and manufactures high-performance compute and storage products for demanding applications across land, sea, and air. Its products include ruggedized servers, compute accelerators, flash storage arrays, and storage acceleration software used across commercial autonomous applications and defense platforms including aircraft, drones, ships, and vehicles.Compliance / Additional InformationThe Senior Manufacturing Process Engineer will support quality and environmental management requirements including AS9100, ISO 9001, and ISO 14001, as applicable to the role. Responsibilities include controlled documentation, traceability, audit support, corrective action, equipment maintenance and calibration coordination, and adherence to manufacturing process requirements.The role also requires attention to manufacturing safety, ergonomic, and environmental risks and supports a culture focused on safety, quality, delivery, cost, and growth.