PTME Selective Soldering Engineer

Responsible for developing, installing, validating, and sustaining selective soldering processes for power electronics PCBAs. This is a hands-on manufacturing engineering role focused on process robustness, defect prevention, and validation through **AOI/AXI inspection and cross-section analysis.**The position includes equipment installation,commissioning, safety compliance, and quality documentation ownership.

Please read carefully the required qualifications before applying:

• Education: Bachelor’s degree in Engineering (Mechanical, Electrical, Manufacturing, Mechatronics, or related field).

• Required Qualifications

• Proven experience in selective soldering processes for PCBA manufacturing (Ersa equipment preferred).

• Strong understanding of soldering fundamentals, heat transfer, and defect mechanisms in electronics manufacturing.

• Hands-on experience with equipment installation, commissioning, and ramp-up in a production environment.

• Solid knowledge of manufacturing safety practices (thermal processes, chemicals/flux, ESD controls).

• Strong hands-on experience with cross-sectioning and solder joint analysis, including intermetallic evaluation and defect identification.

• Experience using AOI and AXI inspection systems for process validation and defect detection.

• Experience developing and maintaining PFMA/PFMEA, DCP, and Control Plans for soldering processes.

• Knowledge of IPC standards (e.g., IPC-A-610, IPC-7095).

• Hands-on experience with laboratory equipment, including:

• Precision cutting tools

• Diamond saws

• Mounting and polishing equipment

• Experience in process validation methodologies (DOE, process window optimization, capability/yield improvement).

• Ability to troubleshoot using inspection data + physical analysis and implement sustainable corrective actions.

• Preferred Qualifications

• Experience in automotive or high-reliability electronics manufacturing.

• Experience with NPI and PPAP for PCBA processes.

• Knowledge of thermal profiling and optimization in selective soldering.

• Familiarity with maintenance strategies and equipment reliability (TPM).

• Exposure to Lean / Six Sigma methodologies.

• Language Skills: Advanced proficiency in English (written and verbal) to support global reporting, technical documentation, and cross-functional collaboration.

• Develop, optimize, and maintain selective soldering processes (preferably using Ersa equipment) to ensure consistent solder joint quality and high production yield.

• Lead equipment installation and commissioning of selective soldering lines, including setup, calibration, qualification, and ramp-up to production.

• Define and control critical process parameters: fluxing, preheating, solder pot temperature, nitrogen usage, nozzle selection, cycle times, and maintenance intervals.

• Ensure compliance with manufacturing safety standards (including thermal, chemical, and ESD controls) during installation, operation, and maintenance.

• Analyze and resolve soldering defects such as bridging, insufficient fill, icicles, voids, non-wetting, dewetting, driving root cause and permanent corrective actions.

• Perform hands-on cross-sectioning and solder joint analysis, including evaluation of intermetallic layers, wetting behavior, and internal defects.

• Define and execute cutting strategies for NPI, ensuring representative sampling of critical joints and interfaces.

• Utilize and interpret AOI and AXI inspection systems to validate soldering quality and correlate inspection results with physical analysis.

• Plan and execute process validation activities (DOE, process window definition, capability studies, PPAP support when applicable).

• Own and maintain quality and manufacturing documentation, including:

• PFMA / PFMEA (process risk analysis specific to soldering)

• DCP (Process Control Documents)

• Control Plans (inspection points, reaction plans, limits)

• Work instructions and standard operating procedures

• Establish and validate inspection criteria and defect thresholds aligned with IPC standards.

• Drive continuous improvement for defect reduction, yield improvement, and process stability.

• Collaborate with manufacturing, quality, maintenance, and suppliers to ensure process alignment, equipment uptime, and defect containment.