Engineering Intern building scalable chess products or AI/ML systems for Chess.com. Developing features, models, and LLM - powered applications with multidisciplinary teams.
About the role
- Embedded Developer building firmware for Interaxon's EEG and biosensing wearables. Owning releases, Bluetooth connectivity, sensor processing, power management, and hardware bring-up.
Responsibilities
- Develop and improve EEG and biosensing wearable firmware
- Own firmware releases end to end, including scope, code freeze, QA and regression cycles, release notes, and inter-team communications
- Maintain and extend shipping STM32 firmware while bringing up new platforms
- Design and debug BLE protocols, throughput, latency, connection reliability, and field connection issues
- Integrate Bluetooth audio codecs and I2S/PDM microphone and speaker paths alongside continuous sensor streaming
- Implement biosignal acquisition for EEG, PPG, and fNIRS front ends, including sensor presets, on-device filtering, stream formats, and telemetry
- Configure PMICs, fuel gauging, low-power and sleep modes, and battery-life improvements
- Perform field debugging across firmware, hardware, and app layers using logs, RTT capture, crash reporting, and product analytics
- Develop manufacturing and factory-test firmware, flashing flows, test-time reductions, and internal tooling
- Bring up new hardware, peripherals, PMICs, batteries, and sensors using datasheets, schematics, and measurements
- Collaborate with mobile app, cloud, QA, research, customer care, and contract manufacturing teams across time zones
- Write architecture notes, protocol specifications, release documentation, and onboarding material
Requirements
- 5+ years of embedded firmware development in C and scripting in Python
- Experience with RTOS (ThreadX, Zephyr, etc.) or bringing up an unfamiliar vendor SDK
- Experience with PCB communication protocols: I2C, SPI, UART, JTAG/SWD, etc.
- STM32 experience is an asset
- Experience owning firmware releases, including versioning, branching, and release criteria
- Ability to drive firmware projects independently
- Ability to design firmware architecture and create scalable firmware protocols
- Experience with secure bootloaders and firmware update mechanisms; MCUboot or comparable, image signing, rollback protection, and encryption
- Experience with BLE, including protocol design and debugging real-world connection problems
- Ability to read schematics and component datasheets, bring up an eval board, take measurements, and provide feedback on circuit design
- Comfortable with J-Link / ST-Link, SWD, SWO/RTT, logic analyzers, and oscilloscopes
- Willingness to learn and practice meditation
- Experience with consumer audio and Bluetooth audio stacks is a bonus
- Experience with biosignals on wearables or medical-device firmware is a bonus
- Familiarity with analog and digital signal processing and sensor front ends is a bonus
- Low-power design, PMICs, and fuel gauging experience is a bonus
- Familiarity with software development life cycle, agile methodology, CI/CD, and hardware-in-the-loop testing for embedded is a bonus
- Experience working with contract manufacturers or offshore engineering partners and factory test systems is a bonus
Benefits
- Remote working environment
- Great benefits package
- Gym subsidy
- Equal opportunity and barrier-free recruitment
- Accommodations during the selection process, if required
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
No Education Requirement
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