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About the Role

We are hiring a Senior Electrical Engineer to own the electrical architecture of Ironsite's wearable hardware. This is a foundational role on the hardware team where you will design and validate the PCBs, power systems, and multi-sensor integration for reliable operation on active jobsites. You will work across the full product lifecycle, owning multi-layer PCB design, high-speed signal integrity, power management, and multi-sensor integration.

Responsibilities

Design multi-layer PCBs from concept through DFM, including schematic capture, layout, and signal integrity analysis for high-speed and mixed-signal designs.
Own end-to-end electrical architecture for wearable hardware programs, from feasibility through hardware bring-up and production release.
Optimize designs for size, power efficiency, thermal performance, and integration density for wearables operating an 8-12 hour shift.
Drive component selection, sourcing collaboration with supply chain, and design tradeoffs across cost, performance, and manufacturability.
Design and validate power delivery systems, including battery management, charging, protection circuits, and low-power modes.
Own the electrical side of battery selection and integration, and partner with mechanical engineering on packaging and thermal design.
Build the power architecture that supports continuous recording, encoding, wireless upload, and on-device inference across a full shift without failure.
Integrate optical (imaging), audio (where relevant), wireless (BLE, Wi-Fi, LTE), IMU, and environmental sensors into a cohesive hardware platform.
Own high-speed interfaces (MIPI CSI, USB, PCIe, and similar) and the signal integrity work that makes them reliable at scale.
Partner with firmware engineering on sensor bring-up, driver validation, and system-level tuning.
Lead hardware bring-up on new PCB revisions, from first power-on through validated production release.
Design and execute characterization and validation test plans across environmental conditions (temperature, humidity, vibration, EMI/EMC).
Own manufacturing test coverage, including ICT, functional test, and factory calibration in partnership with manufacturing engineering.
Collaborate with mechanical, firmware, manufacturing, and industrial design across the full product lifecycle, from concept through DFM, DFT, and volume production.
Represent electrical engineering in design reviews, and drive design decisions that balance electrical, mechanical, firmware, and manufacturing constraints.
Support contract manufacturers with technical guidance, design updates, and issue resolution during production ramp.

Requirements

6+ years of hands-on experience shipping electrical designs on production hardware, with at least one full product lifecycle delivered in wearables, cameras, consumer electronics, or ruggedized hardware at real volume.
Deep expertise in multi-layer PCB design, schematic capture, and layout for mixed-signal and high-speed designs.
Strong experience with power system design, including battery management, charging, protection, and low-power techniques for wearable or portable devices.
Hands-on experience integrating optical imaging systems (MIPI CSI or similar), wireless connectivity (BLE, Wi-Fi, LTE), IMU, and environmental sensors into cohesive hardware platforms.
Experience with high-speed signal integrity analysis and design for reliable operation at production yields.
Comfort reading schematics, datasheets, and using standard hardware lab tools (oscilloscope, logic analyzer, network analyzer, thermal camera, protocol analyzers) to debug hardware and hardware-software integration issues.
Systems thinking across the full hardware stack. From silicon and PCB through mechanical integration and firmware, you understand how electrical decisions propagate throughout the product.
Experience working directly with contract manufacturers on hardware bring-up, DFM, DFT, and production ramp.
A background in Electrical Engineering, Computer Engineering, or a related field, or the equivalent experience.
Experience shipping wearable products at consumer volumes (Fitbit, Oura, Whoop, GoPro, Bose, Apple, Meta, Snap, or similar).
Experience with camera sensor integration and imaging system design, including selection, integration, and characterization of image sensors.
Experience designing for ruggedized industrial or outdoor environments (IP-rated devices, temperature extremes, EMI/EMC compliance).
Experience with battery cell selection, custom battery pack design, and battery safety certification.
Ability to generate clear and concise technical documentation for internal teams, contract manufacturers, and executive stakeholders.
Familiarity with contract manufacturers in Taiwan, mainland China, or Southeast Asia.
Experience with FCC, CE, or other regulatory certification processes for wearable or wireless devices.
Experience with prior electrical engineering leadership at a hardware startup that scaled from early volumes to full production.
Mandarin or Vietnamese language proficiency.
Familiarity with mechanical CAD tools (SolidWorks, Fusion 360) for cross-functional collaboration.

Skills

Electrical architecture
PCB design
Schematic capture
Layout
Signal integrity analysis
High-speed design
Mixed-signal design
Power system design
Battery management
Charging circuits
Protection circuits
Low-power modes
Sensor integration
Optical sensors
Audio sensors
Wireless sensors (BLE, Wi-Fi, LTE)
IMU sensors
Environmental sensors
High-speed interfaces (MIPI CSI, USB, PCIe)
Hardware bring-up
Characterization
Validation testing
Manufacturing test coverage
DFM (Design for Manufacturability)
DFT (Design for Testability)
EMI/EMC
Technical documentation
Mechanical CAD tools

Location

San Francisco Bay Area

Work Type

On-site

Experience Level

Senior
6+ years of hands-on experience
1+ full product lifecycle delivered

Education Level

Background in Electrical Engineering, Computer Engineering, or a related field, or the equivalent experience.

Salary/Compensations

$175k-$225k per year

Benefits

Significant early-stage equity
Full benefits including health, dental, vision, and 401(k) with 6% match
Daily catered breakfast and lunch

About the Company

Ironsite is building the intelligence layer for the physical world, designing wearable hardware and transforming shift footage into next-morning reports with AI models.
We accelerate construction speed, efficiency, and predictability for complex infrastructure projects by training AI models on egocentric construction footage and labor productivity data.
Our philosophy is pro-worker, believing technology should empower the workforce.
Ironsite is deployed across major construction projects, capturing over 100,000 hours of footage and processing thousands of hours daily with a workforce-first architecture that prioritizes privacy.
We are backed by leading investors and prominent operators in technology and construction.
We believe Ironsite is the foundation for the future of construction, creating an operating system for the physical world that respects and values the workforce, enabling autonomous construction.