Nexite develops next-generation retail IoT infrastructure for retail industry.
We are looking for a hands-on Hardware Design Engineer to own the full hardware lifecycle — schematic capture, PCB layout, mixed signal circuit design, power architecture, bring-up, and regulatory certification — across current and next-generation hardware.
Digital Hardware Design — MCU, PHY, Ethernet & PoE
• Design the complete digital hardware stack: NXP i.MX RT MCU schematic and BGA layout, Ethernet PHY circuit and controlled-impedance Ethernet routing. Design and validate the IEEE 802.3af PoE front-end : PD handshake, mid/end-span bridge rectifiers, isolated flywheel buck , and optocoupler feedback regulation; analyse cross-domain IO level margins across all MCU interfaces to confirm safe driver/receiver operation.
RF & Analog Circuit Design
• Design the ISM transmit chain and 2.4 GHz AoA receive chain; simulate match networks with ADS or equivalent and validate with VNA S-parameter measurements.
PCB Design & Layout
• PCB layout: Define stack-up and controlled-impedance rules; route high pin-count BGAs and high-speed peripherals with length tuning; partition RF, digital, and power domains for FCC/ETSI compliance.
• Power, calibration & test: Design DCDC/LDO supplies and power distribution; define hardware test procedures for RF power and frequency calibration at production.
Production Support
• Failure analysis (field & manufacturing)
• Yield improvement
• Cost reduction
Post-Silicon Verification Support
• B.Sc. in Electrical Engineering – mixed-signal focus.
• 3-5 years of hands-on PCB design experience for production hardware of analog and digital design, including 2 years with RF circuits at 900 MHz and/or 2.4 GHz.
• Proficiency in Altium Designer or OrCAD/Allegro for multi-layer high-density layout: controlled impedance, differential pairs, and RF routing.
• Experience with multi-domain power architectures: DCDC converters, LDOs, power sequencing circuits, and IO level compatibility analysis.
• Experience digital hardware stack: NXP i.MX RT MCU schematic and BGA layout, Ethernet PHY circuit
• Solid RF fundamentals: S-parameters, impedance matching, Smith chart, link budgets, directional couplers, as well as LNA and PA operation.
• Hands on experience with lab equipment: oscilloscope, logic analyser, VNA, and spectrum analyser.
• Familiarity with EMI/EMC design practices and experience supporting hardware through FCC, CE, or equivalent certification.
Advantage
• Experience with angle of arrival concepts (such as BLE AoA) and the associated hardware design/constraints.
• Experience with NXP MCUs hardware constraints.
• Experience designing PoE (IEEE 802.3af/at) and isolated flywheel buck power delivery circuits.
• Experience with HyperRAM and high-speed PCB design.
• Experience with Ethernet hardware design and manufacturing RF test fixtures.
Nexite’s Live Retail Optimization platform automatically captures every customer interaction in your stores; what customers see, touch, try on, and buy or abandon, in real time. Using AI, Nexite translates this unique data into live actionable insights to increase in-store profitability by ensuring each piece of merchandise perfectly fits your local customers, each store displays the right product in the right place, and each store employee recommends the right styles to drive full price sales.
