Manufacturing Process Engineer Jobs in California

Job Title: Senior Manufacturing Process Engineer

Company: One Stop Systems, Inc. (NASDAQ: OSS)

Headquarters Location for On-Site Position: Escondido/San Diego, CA 

Why Join Us? At One Stop Systems, we are committed to innovation and excellence. Join our team and contribute to cutting-edge projects in a dynamic and supportive environment.

Company Overview:

One Stop Systems, Inc. (Nasdaq: OSS) is a San Diego-based publicly traded technology company and global leader in enterprise class compute solutions for AI/ML, sensor fusion, and autonomy at the demanding ‘edge.’ OSS designs and manufactures the highest performance compute and storage products that enable these rugged AI, sensor fusion and autonomous mobile capabilities without compromise. These hardware and software platforms bring the latest enterprise class data center performance and technology to the harsh and challenging applications, whether they are on land, sea or in the air.

OSS products include ruggedized servers, compute accelerators, flash storage arrays, and storage acceleration software. These specialized rugged and compact products are used across multiple industries and applications, including commercial autonomous applications, as well as aircraft, drones, ships, and vehicles within the defense industry.

The company has annual sales in excess of $40 million, is profitable, cash flow positive, enjoys a solid cash position without domestic debt and has target growth plans in excess of 20% a year. Our markets have significant tail winds being driven by the high priority within the DOD to add AI and/or Autonomous capabilities throughout the military theater as well as strong economic pull within the commercial segment. The market opportunity for OSS types of products is expected to grow to over $2 billion in size.

Compensation & Benefits:

Position Overview: The Manufacturing Process Engineer develops, documents, implements, and continuously improves manufacturing processes for One Stop Systems' high-performance computing products. This hands-on individual contributor partners with Engineering, Production, Quality, Planning, Purchasing, Test, and external manufacturing partners to transition new and derivative designs into repeatable production; improve safety, quality, delivery, cost, and labor performance; and maintain accurate routings, work instructions, tooling, process controls, and production data. The role applies Lean and data-driven problem-solving in OSS's high-mix, low-volume electronics and electromechanical manufacturing environment.

Reporting Relationships:

The Senior Manufacturing Process Engineer reports to the VP of Operations.

Duties and Responsibilities:

• Develop, document, implement, and improve manufacturing processes across receiving, kitting, assembly, integration, production test, final inspection, and shipping.

• Lead the manufacturing workstream for new product introduction and production readiness reviews, including design-for-manufacturability and design-for-assembly feedback, pilot and first-build support, manufacturing risk identification, and closure of readiness actions.

• Create and maintain controlled manufacturing documentation, including visual work instructions, assembly procedures, routings, standard operations, manufacturing notes, labor standards, and process verification records.

• Design, develop, validate, and improve production fixtures, jigs, templates, tooling, ergonomic workstation layouts, and material presentation methods to improve repeatability, safety, quality, and throughput.

• Conduct time studies, cycle-time analysis, line balancing, and workflow analysis; establish and maintain realistic labor standards, routing times, resource assignments, and capacity assumptions in the ERP/MES environment.

• Apply Lean and Six Sigma methods, including 5S, standardized work, value-stream mapping, Kaizen, waste elimination, root-cause analysis, and DMAIC, to improve flow, reduce variation, and sustain process gains.

• Analyze in-process and final inspection yield, defects, rework, scrap, labor variance, RMA trends, and other operational data; lead or support cross-functional corrective actions and verify effectiveness.

• Improve the quality and usability of manufacturing data in Infor CloudSuite Industrial/Factory Track or related ERP/MES systems.

• Support demand and capacity planning by identifying process constraints, validating routing and resource data, modeling labor requirements, and recommending practical load-leveling, staffing, tooling, or outsourcing actions.

• Evaluate manufacturing automation, capital equipment, and process-technology opportunities; prepare technical and cost justification, coordinate implementation, and validate performance before release to production.

• Support contract manufacturers and special-process suppliers by defining manufacturing documentation, tooling, quality, traceability, and process requirements; participate in launch readiness and supplier process-improvement activities.

• Train assemblers, technicians, inspectors, and other users on new or revised processes and verify that standardized work is understood, effective, and sustained.

• Support AS9100, ISO 9001, and ISO 14001 requirements through controlled documentation, objective evidence, process discipline, equipment maintenance and calibration coordination, traceability, audit support, and corrective action.

• Identify and address manufacturing safety, ergonomic, and environmental risks associated with processes, tooling, workstations, and equipment.

• Provide concise project updates, risk assessments, recommendations, and implementation status to Operations leadership and cross-functional stakeholders.

• Performs other duties as assigned.

Qualifications: 

• Bachelor's degree in Manufacturing, Industrial, Mechanical, Electrical, or a related engineering field; equivalent relevant education and experience may be considered.

• Minimum 7 years of manufacturing or process engineering experience in a high-mix, low-volume electronics, electromechanical, aerospace, defense, or similarly regulated manufacturing environment.

• Demonstrated hands-on experience with new product introduction, production-readiness activities, first builds, work-instruction development, manufacturing routings, time studies, labor standards, and tooling or fixture development.

• Working knowledge of Lean manufacturing and structured problem-solving; Lean Six Sigma Green Belt or comparable certification preferred.

• Strong root-cause analysis, data analysis, and corrective-action skills, with the 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; experience with Infor CloudSuite Industrial/SyteLine and Factory Track preferred.

• Proficiency with Microsoft Office and data-visualization tools; experience with Power BI, Power Apps, Power Automate, or related tools preferred.

• Experience supporting AS9100 or ISO 9001 quality systems; knowledge of ISO 14001 and controlled manufacturing documentation preferred.

• Demonstrated ability to manage multiple priorities, work effectively on the manufacturing floor, and drive cross-functional actions to completion in a fast-paced environment.

• Excellent written and verbal communication, organizational, project-management, and interpersonal skills.

Competencies:

• Clear Communication Communicates technical information, risks, instructions, and decisions clearly and at the appropriate level of detail

• Cross-Functional Collaboration Builds productive working relationships across Engineering, Operations, Quality, Planning, Purchasing, Test, and external partners to achieve shared solutions.

• Continuous Improvement Actively identifies waste, variation, constraints, and process gaps and converts them into practical, sustainable improvements.

• Technical Problem Solving Uses structured analysis, evidence, and sound engineering judgment to identify root causes and implement effective countermeasures.

• Ownership and Follow-Through Takes responsibility for assigned processes and actions, maintains accurate documentation, and drives work to verified completion.

• Quality and Customer Focus Understands that process discipline, repeatability, traceability, and conformance directly affect product reliability and customer commitments.

• Cost and Business Awareness Balances technical requirements with labor, material, schedule, capacity, and investment considerations to improve overall business performance.

• Positive Attitude Works independently and collaboratively, responds constructively to changing priorities, and supports a culture of respect and operational excellence.

• Company Goals Understands Company and department goals and aligns process-engineering priorities with safety, quality, delivery, cost, and growth objectives.

Physical Demands:

• Prolonged periods of sitting at a desk and working on a computer.

• Regularly required to stand and walk within office, laboratory, warehouse, and manufacturing areas.

• Regularly required to utilize hand and finger dexterity to handle parts, use tools, operate equipment, and work at a keyboard.

• Occasionally required to bend, stoop, kneel, crouch, reach, climb, or balance while evaluating equipment, workstations, and manufacturing processes.

• Regularly required to talk, hear, and communicate in office and manufacturing environments.

• Regularly utilizes visual acuity to read technical information, inspect assemblies and workmanship, observe process details, and operate equipment.

• Occasionally required to lift, push, pull, or carry items up to 25 pounds.