SMT Engineer — High-Density Power Interconnects

CelLink; San Carlos (CA); On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Stock option

Job summary

CelLink is seeking an SMT Engineer in California to develop and scale manufacturing processes for flex-circuit interconnects used in high-density server and rack systems. You will own reflow soldering profiles, equipment setup, and cross-functional collaboration to ensure reliability and manufacturability.

The role requires hands-on expertise in electronics manufacturing, data analysis, and CAD-driven tooling design, with opportunities to influence design-for-manufacturing and scalable

Qualifications

• Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Materials Science, or related field.
• 3–7 years of experience in process engineering for electronics manufacturing, ideally in high-speed interconnects, flex circuits, or PCB production.
• Experience with data center or high-current electrical component manufacturing is a strong plus.
• Deep knowledge of flexible circuit manufacturing, roll-to-roll processes, or high-reliability electronics.
• Familiarity with power interconnects, busbars, or cable harness replacements used in data center systems.
• Proficiency in data analysis tools (Excel, JMP, Python preferred) and engineering software (SolidWorks, AutoCAD, Minitab, etc.).
• Strong problem-solving and analytical skills with the ability to lead cross-functional investigations and corrective actions.
• Excellent communication and documentation skills for technical reporting and collaboration.
• Proven ability to thrive in a fast-paced, hands-on, and highly technical environment.

Responsibilities

• Develop and tune reflow soldering profiles for advanced power-electronic assemblies, including large copper mass and mixed SMT/through-hole designs.
• Own the setup, operation, and troubleshooting of reflow ovens, solder paste printing, and other process equipment.
• Analyze thermal profiles and cross-sections to correlate process parameters with solder joint reliability.
• Develop and optimize lamination and bonding processes, including press setup, adhesive cure control, and layer alignment.
• Diagnose and correct leakage, delamination, and voiding issues in laminated or sealed cooling-plate assemblies.
• Design and release tooling, coupons, and test fixtures in CAD (SolidWorks preferred) to support process development and validation.
• Interpret and create engineering drawings and GD&T to ensure correct fit, form, and function.
• Define and execute DOE and characterization tests, including electrical, mechanical, thermal, and visual inspection.
• Lead root-cause analysis and corrective actions across soldering, lamination, and bonding processes.
• Collaborate with Design, Quality, and Operations to transition new processes into scalable production.
• Maintain a clean, organized work area and adhere to all safety and environmental standards.
• Demonstrate CelLink’s core values of integrity, teamwork, self-discipline, and technical excellence.
• Perform additional duties as assigned to support evolving business needs.

Skills

Problem-solving

Analytical skills

Communication skills

Documentation skills

Education

Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Materials Science, or related field

Tools

SolidWorks

AutoCAD

Minitab

Excel

JMP

Python

Job description

CelLink is seeking an SMT Engineer in California to develop and scale manufacturing processes for flex-circuit interconnects used in high-density server and rack systems. You will own reflow soldering profiles, equipment setup, and cross-functional collaboration to ensure reliability and manufacturability.

The role requires hands-on expertise in electronics manufacturing, data analysis, and CAD-driven tooling design, with opportunities to influence design-for-manufacturing and scalable