Senior Process Engineer-SMT Technical Lead

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job Summary

Job Description

Flex intends to spin off its Cloud and Power Infrastructure segment into a new, independent publicly traded company, which we’re calling SpinCo, until the name is unveiled. The spin is planned for Q1 2027. If the intended spin occurs, this role will support SpinCo, which will focus on critical digital infrastructure, delivering end-to-end power and thermal management solutions for AI data centers and other mission-critical applications

To contribute to our efforts and support the teams that build great products, we are looking for a Senior Process Engineer-SMT Technical Lead, located at Guadalajara North Campus.

Reporting to the Process Manager, We are seeking a highly skilled Lead Process Engineer to oversee and optimize our manufacturing operations, with a critical and specialized focus on Surface Mount Technology (SMT) processes, which serve as the primary technical differentiator and top priority for this role. The incumbent will be responsible for managing the integrity of SMT manufacturing processes, ensuring operational excellence, adherence to quality standards, and driving continuous innovation through Lean Manufacturing methodologies. Additionally, this role serves as the primary technical point of contact for international clients, providing leadership and mentorship to a team of engineers to ensure project scalability, robustness, and success. provement objectives.

What a typical day looks like:

• Supervise technical activities in SMT processes and coordinate the team.
• Develop and optimize programs for DEK, SPI, Camalot, and Press Fit equipment.
• Analyze and validate stencils; perform SPI debug and P&P failure analysis.
• Develop reflow profiles as well as instrumentation of profiling boards.
• Create procedures, visual aids, and technical presentations.
• Perform capacity calculations, rates per station and identify bottlenecks in the process.
• Document and implement continuous improvement actions and Kaizen events.
• Establish Manufacturing process and manage process that are designed according to customer specifications.
• Work on the continuous improvement to increase yield, scrap reduction and cycle time.
• Should be able to troubleshoot PCB Assembly process issues.
• Should be able to make CPK Study before delivering solder paste processes.
• Design & develop tools, jigs, fixtures and drive the incoming and until it is implemented on the production line.
• Development of proper documentation and manufacturing process according to customer specifications.
• Recognize the manufacturing process, technologies, techniques and product specifications.
• Define, implement and evaluate proposed designs and processes for manufacturability.
• Have the capability to work with other engineers to identify root causes of failures in the manufacturing process.
• High level participation in daily production activities and effective problem solving on daily issues.
• Prepare purchase justification for the acquisition of capital equipment.
• Analysis and execution of engineering changes.
• Parameter characterization to ensure robustness and repeatability process.
• Take ownership to develop, implement new process control methodologies.

The experience we’re looking to add to our team:

• Engineering degree
• Experience in SMT, PTH, and Backend processes, SPI, edge bonding, and smart torque system
• Assembly Integration: Partner with downstream assembly and test teams to ensure process compatibility, product quality, and manufacturing efficiency**.**
• Documentation & Quality: Develop and maintain process flowcharts, PFMEA, control plans, work instructions, and process validations to ensure robust and repeatable manufacturing processes.
• Technical Differentiators (High Priority) The ideal candidate must demonstrate advanced expertise and hands-on technical mastery in:
• SMT Process Engineering
• Solder Paste Printing
• Reflow Process Development
• SMT Defect Troubleshooting: Strong experience identifying and resolving defects such as: Bridging, Insufficient solder, Tombstoning Head-in-Pillow (HIP), Opens, Component shifts, Solder balls and Voiding
• Inspection Technologies
• Statistical Process Control (SPC): Strong understanding of process capability analysis, control charts, data-driven decision making, and process monitoring.

What you’ll receive for the great work you provide:

• Competitive Salary.
• Life & Medical insurance.
• Christmas Bonus.
• Food Coupons.
• Saving Fund.

HS115

Job Category

Production Engineering

Required Skills:

Optional Skills:

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email [email protected] and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).