SMT Process Engineer

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.

Job Summary

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 SMT Process Engineer, located at Guadalajara North Campus. Reporting to the Process Manager, this role is responsible for supervising critical SMT processes, ensuring the correct execution of production plans, and leading the technical team to meet quality, cost, delivery, and continuous improvement 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
• Knowledge of stencil design, reflow profiling, tooling/fixture design, and pallet validation.
• Familiarity with IPC‑A‑610, CPK calculations, CAD/Gerber files, and MS Office.
• Previous experience supervising and developing technical personnel.
• Experience with production control systems (serial control, flows, traceability).
• Schedule availability.

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.

Through the collective strength of ~150,000 team members across 30 countries and responsible, sustainable operations, 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 with Flex offers the opportunity to make a difference, invest in your growth, and build great products for our customers that improve people’s lives. Together, let’s create the extraordinary!