Wearables Firmware & Hardware Test Automation Engineer

Sesame; San Francisco (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

401(k) match

Health benefits

Unlimited PTO

Flexible Spending Account (FSA)

EAP

Stock options

Job summary

Sesame is building a wearable AI hardware device and seeks a Hardware Test Automation Engineer to own automated test rigs, CI/CD integration, and performance dashboards. You will drive nightly and weekly automated runs, stabilize tests, and report quality metrics for firmware and hardware systems.

In this role you will collaborate across firmware and test platforms in a fast-moving environment, shaping testing strategy and ensuring robust hardware validation before releases.

Qualifications

• Hands-on experience building hardware/embedded test automation and integrating it into CI/CD (automated flashing, execution, and reporting).
• Solid wireless fundamentals: Bluetooth audio (A2DP/AVRCP), BLE, and throughput testing (e.g., iPerf).
• Strong scripting/programming (e.g., Python) and ability to build harnesses and dashboards from scratch.
• Experience defining test plans, metrics, and pass/fail thresholds from real data.
• Comfortable operating in an early-stage, prototype-hardware environment with limited units and evolving specs.

Responsibilities

• Design, build, and own an automated hardware test rig integrated with CI/CD (build -> flash -> run -> report) for the device.
• Implement throughput/bandwidth, connectivity stress tests (e.g., iPerf, A2DP/AVRCP), including sustained-throughput and degradation scenarios.
• Build API-level tests covering throughput, sustained load, and crash detection.
• Run long-duration audio sessions and perform battery/thermal performance characterization.
• Build and maintain a live performance and stress dashboard with safety thresholds and regression flags.
• Develop diagnostic tooling and support automated bug triage for hardware/firmware issues.
• Provide daily automation summaries and updates; support targeted test runs as needed.
• Partner with firmware and QA to define automation scope, manning, and platform ownership.

Skills

Python scripting

CI/CD pipelines

Test automation

Embedded hardware

Wireless fundamentals

Tools

Bluetooth test rigs

PyDebug tooling

Job description

Sesame is building a wearable AI hardware device and seeks a Hardware Test Automation Engineer to own automated test rigs, CI/CD integration, and performance dashboards. You will drive nightly and weekly automated runs, stabilize tests, and report quality metrics for firmware and hardware systems.

In this role you will collaborate across firmware and test platforms in a fast-moving environment, shaping testing strategy and ensuring robust hardware validation before releases.