Signal Integrity (AI Hardware)

Location: San Jose, United States

Salary: $120,000–$300,000 annually

Company

hirify.global develops personalized, multimodal artificial intelligence and next-generation hardware interfaces that interact with people and the physical world.

What you will do

• Perform pre-layout and post-layout signal integrity simulations for DDR4/5, PCIe Gen3/4, USB 3.x, and MIPI CSI/DSI interfaces.
• Model and optimize power distribution networks, including decoupling, plane resonance, and target impedance.
• Build SerDes channel models, analyze eye diagrams, and validate compliance margins.
• Define PCB stackups, impedance profiles, routing constraints, and SI/PI design rules.
• Conduct laboratory measurements with oscilloscopes, VNAs, TDRs, spectrum analyzers, and EMI probes.
• Identify and mitigate board- and system-level EMI/EMC issues while supporting regulatory certification.

Requirements

• BS or MS in Electrical Engineering with a focus on electromagnetics, RF, or signal integrity.
• Hands-on experience with SI/PI tools such as Ansys HFSS, Keysight ADS/PathWave, Cadence Sigrity, or Simbeor.
• Deep knowledge of DDR, PCIe, USB, and/or MIPI signaling standards and compliance testing.
• Expert-level skills with high-bandwidth oscilloscopes, VNAs, TDR equipment, and near-field EMI probes.
• Strong understanding of multilayer PCB fabrication, Dk/Df materials, and controlled-impedance routing.

Nice to have

• Experience with LPDDR5 or high-speed memory interfaces for mobile or edge-compute platforms.
• RFIC or antenna design experience for Wi-Fi, Bluetooth, or UWB systems.
• Familiarity with 3D electromagnetic solvers for package-level or connector modeling.
• Experience supporting FCC, CE, or VCCI EMC certification from design through testing.

Culture & Benefits

• Work on multimodal AI systems and custom hardware developed as a unified platform.
• Full-time position with an annual US base salary range of $120,000–$300,000.
• Total compensation may include additional components and benefits depending on the role.