Senior/Lead Hardware Engineer

Location: Shenzhen, Dongguan, Guangzhou, or Foshan, China; hybrid

Company

hirify.global is an international technology company and a large European manufacturer of security systems, offering devices for intrusion protection, video surveillance, fire and life safety, comfort, and automation.

What you will do

• Develop sophisticated circuit schematics and PCB layouts for new Ajax devices, ensuring reliability and scalability.
• Identify cost-reduction and performance-improvement opportunities through component unification and architectural optimization.
• Lead complex hardware projects from concept through mass production of more than 10,000 units per month.
• Consult firmware and supply chain teams on hardware-software interfaces and manufacturing yield.
• Lead hardware bring-up, debug complex issues, and define testing protocols for design validation.
• Mentor the team on high-performance hardware design methodologies.

Requirements

• Expert-level circuit element calculations and high-fidelity simulations of device behavior.
• Professional proficiency in Altium Designer.
• Experience designing for LVD and EMC compliance and mass manufacturing, including DFM and DFT.
• Deep expertise designing both battery-powered and mains-powered devices operating at 85–265 VAC.
• Experience preparing production documentation, including BOMs, Gerber files, and assembly drawings, with Git-based version control.
• Fluent English is required for technical documentation and international collaboration.

Nice to have

• Experience with managed libraries and 3D modeling in Altium Designer.
• Direct experience working with vendors and manufacturers for high-volume production.
• Advanced knowledge of signal integrity and power integrity, including S-parameters, PDN impedance modeling, and TDR measurements.
• Ability to write or review embedded software in C/C++ and STM32 for deep-level debugging and hardware-software co-design.
• Experience guiding products through global certifications such as UL, CE, and RED.

Culture & Benefits

• Hybrid work format in Shenzhen, Dongguan, Guangzhou, or Foshan.
• International collaboration across a security-device product portfolio used in more than 180 countries.
• Opportunity to contribute to end-to-end hardware development from innovative concepts to mass-scale manufacturing.