Steven W.

PCBA-Based Products Assembly (Turnkey) From your design files to finished, tested products. In‑house: PCB fabrication, PCBA assembly, metal & plastic enclosures, final assembly, and functional testing. Ideal for Industrial Controls, IoT Devices, Consumer Electronics, Medical Equipment, Machine Vision, New Energy Vehicles and etc.

Cosemi Technologies was acquired by Mobix labs in Aug, 2021 1. Provide technical engineering guidance for AOC products Deliver remote technical consultation and engineering support for AOC (Active Optical Cable ) development and production, ensuring Asian Contract Manufacturers' processes align with the design and quality standards. 2. Remotely manage Contract Manufacturers across Asia Oversee Contract Manufacturers in Vietnam and Taiwan, monitoring production progress, quality status, and delivery schedules, while proactively identifying and resolving technical and process issues. 3. Serve as the cross-time-zone communication bridge between the U.S. and Asia Coordinate daily with both the U.S. headquarter and Asian manufacturers on delivery plans, production status, and quality metrics, ensuring smooth information flow and accurate order execution. 4. Coordinate the supply chain between Chinese suppliers and Asian manufacturers Manage orders, delivery, and shipping plans for all raw material suppliers based in China, acting as the key liaison between Chinese suppliers and Asian Contract Manufacturers to ensure timely material availability and uninterrupted production. 5. Directly address customer complaints and technical concerns Proactively communicate with end customers to analyze and resolve product quality issues and technical questions, driving root cause analysis and corrective actions to improve customer satisfaction and product reliability.

Expanded role to Global Supply Chain Director, adding procurement management to existing operations & logistics responsibilities.

Provided strategic advice on China manufacturing operations & Contract Manufacturer management, supported cross-regional decision-making, and acted as an extended leadership arm to enhance management effectiveness.

1.Managed end‑to‑end operations for China subsidiary Oversaw planning, production (small‑scale sample builds), quality control, warehousing, and logistics, ensuring efficient execution of testing and validation activities. 2. Directed the Hong Kong logistics hub and cross‑border material flow Supervised the Hong Kong logistics center to coordinate inbound/outbound shipments, inventory control, and distribution, supporting smooth sample transfers and future mass‑production handoffs. 3. Owned contract manufacturer performance across Thailand and Vietnam Managed all aspects of CM operations – production schedules, quality deliverables, cost control, and capacity planning – ensuring seamless transition of validated designs from China to volume manufacturing. 4. Acted as the primary liaison between US headquarters, China subsidiary, and Southeast Asian CMs Served as the central communication window: relayed product requirements and delivery plans from US to Asia, aligned China‑side operations with US expectations, and coordinated with R&D/engineering/procurement teams in China on sample readiness, material sourcing progress, and cost targets. 5. Coordinated cross‑functional execution Aligned China‑based R&D, engineering, and procurement with internal operations and external CMs to enable timely sample builds, component availability, and production ramp‑up.

1. Led end‑to‑end manufacturing operations Managed Production, Engineering, Planning, and Warehouse functions, delivering full ownership from SMT through wave soldering, assembly, testing and packaging—from raw material intake to final shipment. 2. Held full P&L accountability for manufacturing operations Drove cost management, budgeting, and financial performance across all production lines, aligning operational decisions with revenue and margin targets to ensure profitable growth. 3. Scaled cross‑functional team leadership to over 100+ direct/indirect reports Built, mentored, and aligned a multi‑department workforce of 100+ employees across production, process engineering, equipment, planning, and warehousing, establishing performance metrics, resource allocation, and leadership development pathways. 4. Drove operational KPIs and continuous improvement across the full value stream Monitored and improved plant‑wide metrics including On‑time Delivery (OTD), First Pass Yield (FPY), Cycle Time, and Overall Equipment Effectiveness (OEE), while leading lean initiatives to reduce waste and optimize productivity from SMT to box‑build. 5. Orchestrated production planning, material control, and warehouse logistics Managed sales & operations planning (S&OP) to align production schedules with demand forecasts, coordinated material flow across supply chain and warehouse functions, and optimized inventory turnover to support seamless production execution

1. Directed comprehensive engineering operations spanning from SMT to box-build Maintained end-to-end process ownership across the full manufacturing chain, while scaling responsibilities to include automated insertion (AI) lines, conformal coating, potting, assembly, testing and packaging to ensure seamless product flow. 2. Expanded strategic engineering oversight into new process domains Integrated automated insertion, conformal coating, and potting into the manufacturing ecosystem, driving process qualification and defect reduction. 3. Drove manufacturing analytics & performance excellence at scale Established and monitored plant-wide KPIs — On-time Delivery (OTD), First Pass Yield (FPY), Cycle Time, and Overall Equipment Effectiveness (OEE) — while leading root cause analysis and corrective actions. 4. Championed systematic cost & efficiency initiatives across all production stages Implemented lean methodologies and automation roadmaps covering SMT placement, AI insertion, coating/potting processes, assembly, and final test/pack, significantly reducing material waste, optimizing labor productivity, and lowering operational expenses. 5. Built, mentored, and scaled a cross-functional engineering organization of 50+ engineers Provided technical leadership and career development across process, equipment, test, and packaging disciplines, establishing performance metrics, resource allocation frameworks, and training systems to support plant-wide manufacturing goals and continuous improvement culture.

1. Led end‑to‑end engineering management across the entire product lifecycle Oversaw SMT, wave soldering, assembly, test, and packaging engineering functions, ensuring seamless process integration from PCBA to box‑build completion. 2. Drove new product introduction (NPI) and manufacturing process development Conducted DFM reviews, established process flows and SOPs, and led pilot builds to ensure smooth production ramp‑up and design manufacturability. 3. Managed cross‑functional engineering teams Supervised process, equipment, test, and packaging engineers, defined department goals, allocated resources, and coordinated with quality, production, and supply chain to deliver manufacturing targets. 4. Improved manufacturing yield and operational efficiency Led root‑cause analysis on complex defects across SMT, wave soldering, assembly and test, implemented parameter optimization and fixture improvements, and drove continuous improvement using lean methodology. 5. Established process standards and built technical capability Developed SOPs, PFMEA and process control plans, ensured compliance with IPC standards, introduced automation and new technology to reduce cost and increase equipment efficiency (OEE).

1. Led a team of ~8 engineers Managed new product introduction (NPI) trials, new material selection and evaluation, process parameter validation, and continuous improvement of first-pass yield for mass-production models. 2. Spearheaded the complete transition from lead‑based to lead‑free SMT processes Directed all technical aspects of the conversion, ensuring compliance and process stability across product lines. 3. Supported the setup and qualification of 3 new SMT lines Collaborated with equipment engineers on line installation, took full ownership of process validation and qualification, and ensured production readiness. 4. Delivered major yield improvements Increased rigid PCBA SMT yield from 97.4% to 99.8%, and flexible FPCA yield from 95.6% to 98.7%. Recognized for outstanding performance and promoted from SMT Process Engineer to SMT Process Supervisor. 5. Designed an automated carrier for FPC flexible boards (patent granted) Received a patent for this innovation;

1. Completed intensive 2-month SMT training program Received comprehensive theoretical and hands-on training on all SMT workstations and equipment operations, passing rigorous assessments to qualify as a line engineer. 2. Took full ownership of one SMT production line Assumed end-to-end responsibility for a dedicated SMT line, including daily equipment maintenance, parameter adjustments, and process stability. 3. Monitored and improved first-pass yield, quickly responded to equipment or process anomalies, and resolved issues to reduce abnormal downtime 4. Managed component material variance for the assigned line Controlled and optimized material usage, actively reducing component loss and ensuring efficient inventory consumption. 5. Achieved “A” rating in year-end performance review Recognized as a top performer among entry-level engineers for consistent results in yield, downtime reduction, and material efficiency.