Process Engineer (Network Switches & AI Servers)

Location: On-site in Bac Ninh, Vietnam, embedded with manufacturing operations and contract manufacturing partners. Occasional travel to headquarters and regional partner sites is required.

Company

hirify.global builds high-performance Ethernet switches and AI servers for data-center networking and compute infrastructure.

What you will do

• Own SMT process development for complex PCBAs, including stencil design, solder paste, SPI, placement, reflow, AOI, X-ray inspection, and rework.
• Optimize assembly for large BGAs, FCBGA, LGA, OAM-style packages, fine-pitch components, optical cages, and mixed-technology boards.
• Own box-build and chassis-level assembly, including heatsinks, liquid-cooling cold plates, manifolds, leak testing, shielding, cable routing, tooling, and fixtures.
• Lead PFMEA, control plans, work instructions, FAI, PPAP-style qualification, pilot builds, and EVT-to-MP manufacturing transitions.
• Drive 8D investigations, root-cause analysis, SPC, yield and DPMO improvement, and closure of line escapes, NPI fallout, and RMA issues.
• Coordinate daily with CM and ODM partners in Bac Ninh and collaborate with electrical, signal integrity, mechanical, thermal, test, reliability, quality, and supply-chain teams.

Requirements

• 15+ years of process engineering experience delivering complex, high-speed electronic products at volume.
• Deep hands-on SMT expertise, including large-BGA reflow profiling, warpage analysis, stencil and solder-paste optimization, and X-ray yield decisions.
• Strong mechanical assembly knowledge covering tolerances, torque, fasteners, CAD reviews, fit and finish, and field reliability.
• Fluency in PFMEA, 8D, SPC, FAI/PPAP, ISO 9001, IPC-A-610 Class 3, and J-STD-001.
• Hands-on NPI and sustaining experience with major contract manufacturers or ODMs, plus a bachelor’s or master’s degree in a relevant engineering discipline or equivalent practical experience.
• Excellent English communication skills are required, including writing 8D reports, presenting yield data, and running production reviews.

Nice to have

• Experience with 51.2T or 102.4T Ethernet switches, large AI server or accelerator platforms, or OAM/UBB systems.
• Hands-on liquid-cooling manufacturing experience.
• Optical module qualification at 400G, 800G, or 1.6T, including QSFP-DD, OSFP, OSFP-XD, LPO/LRO, or CPO.
• Six Sigma Black Belt, Lean Manufacturing, hyperscaler/OCP quality, or audit experience.
• Working proficiency in Vietnamese and/or Mandarin.

Culture & Benefits

• Embedded, hands-on work alongside manufacturing operations and CM/ODM partners.
• Competitive compensation and meaningful equity.
• Opportunity to shape the manufacturing of next-generation AI infrastructure.
• Occasional travel to headquarters and partner sites in the region.