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42 Tacit Jobs Hiring Near You

Tacit

Senior Firmware Engineer

San Francisco, CA · On-site

$160K - $210K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

RF Hardware Intern (Fall 2026)

San Francisco, CA · On-site

$40 - $60/hr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Rapid Prototyping Engineer

San Francisco, CA · On-site

$123K - $139K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Rapid Prototyping Engineer

San Francisco, CA · On-site

$95 - $140/hr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

RF Hardware Intern (Fall 2026)

San Francisco, CA · On-site

$40 - $60/hr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Frontend Product Engineer

San Francisco, CA · On-site

$160K - $210K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Frontend Product Engineer

San Francisco, CA · On-site

$160K - $210K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Senior RF Validation Engineer

San Francisco, CA · On-site

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Finance and Operations Lead

San Francisco, CA · On-site

$120K - $190K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Senior Electrical Engineer

San Francisco, CA · On-site

$150K - $200K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Rapid Prototyping Engineer

San Francisco, CA · On-site

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

Tacit

Finance and Operations Lead

San Francisco, CA · On-site

$120K - $190K/yr

About Tacit We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla ...

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Infographic showing various job openings at Tacit in the United States as of August 2026, with employment types broken down into 10% Internship, and 90% Full Time. Highlights an 100% Physical job distribution.

Senior Firmware Engineer

Tacit

San Francisco, CA • On-site

$160K - $210K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 20 days ago

Job description

About Tacit
We are an early-stage, deep tech startup based in San Francisco, developing innovative hardware that rethinks human-computer interaction. We are backed by General Catalyst, Khosla Ventures, and Greylock Partners, with a founding team from Stanford, BrainGate, Oculus, and Tesla. While we can't reveal too much just yet, our team is tackling cutting-edge engineering challenges to bring revolutionary products to life.
About the role
We're looking for a Senior Firmware Engineer to help architect, develop, and ship next-generation neurotech and audio hardware products. As a key member of our growing firmware team, you will own major portions of the embedded software stack from early architecture through production and play a critical role in bringing complex consumer electronics to life.
You'll work closely with electrical, mechanical, software, ML, and product teams to transition systems from prototype to robust, production-ready products while helping establish strong firmware engineering practices across the company.
What you'll do
Embedded Firmware Architecture & Product Development
  • Contribute to firmware architecture and embedded software development for battery-powered wearable consumer devices from concept through production.
  • Own critical portions of the firmware stack including realtime data acquisition, connectivity, power management, bootloaders, and production infrastructure.
  • Develop robust embedded systems using C/C++ and RTOS-based architectures including FreeRTOS or similar environments.
  • Design and implement reliable firmware abstractions across sensors, audio systems, wireless subsystems, and power domains.
  • Collaborate closely with electrical, mechanical, ML, mobile, and cloud teams to optimize system performance, latency, power consumption, and reliability.
  • Operate effectively in a startup environment where engineers own large portions of the hardware and firmware stack.

Realtime Embedded Systems & Sensor Processing
  • Design and optimize low-latency realtime firmware pipelines for sensor acquisition, timestamping, synchronization, and data movement.
  • Develop DMA-driven acquisition systems for high-throughput sensor and audio streams.
  • Implement deterministic scheduling and time alignment across multiple sensors and wireless subsystems.
  • Optimize firmware for low-power operation, including sleep states, subsystem power gating, and dynamic power management.
  • Debug complex concurrency, timing, and memory-related issues in deeply embedded systems.

Wireless Connectivity & Audio Systems
  • Develop and integrate Bluetooth LE and Classic Bluetooth audio functionality on Qualcomm Snapdragon platforms or similar wireless SoCs.
  • Work on wireless coexistence challenges involving Bluetooth, Wi-Fi, and proprietary RF systems.
  • Implement and optimize OTA firmware update systems, bootloaders, and device recovery mechanisms.
  • Develop and optimize embedded audio pipelines including low-latency streaming, microphone processing, and synchronization.
  • Collaborate with ML and algorithm teams on audio features including ANC, beamforming, filtering, and related realtime audio systems.

Bring-Up, Debug & Validation
  • Lead firmware bring-up and debugging across embedded compute, sensors, wireless, and audio systems.
  • Use advanced debugging tools including JTAG/SWD debuggers, oscilloscopes, logic analyzers, protocol analyzers, and lab instrumentation.
  • Develop automated validation, manufacturing, and regression test infrastructure.
  • Perform root-cause analysis and resolve complex issues discovered during development, validation, manufacturing, or field deployment.

Production Firmware & Reliability
  • Support EVT, DVT, and PVT builds and help ramp products to mass production.
  • Design firmware with strong reliability, manufacturability, and serviceability principles.
  • Develop factory programming, calibration, provisioning, and manufacturing test systems.
  • Develop and maintain automated test infrastructure including Hardware-in-the-Loop (HIL) systems, regression testing frameworks, and CI pipelines for embedded firmware validation.
  • Improve firmware robustness through telemetry, logging, automated validation systems, CI infrastructure, and field diagnostics.
  • Help define engineering standards, development workflows, and firmware best practices across the organization.
Requirements
  • 5+ years of experience in embedded firmware or software engineering.
  • Strong proficiency in C/C++ for embedded systems.
  • Strong experience with RTOS-based systems including FreeRTOS or similar platforms.
  • Experience shipping at least one consumer electronics product, preferably wearable or audio-related devices.
  • Experience developing firmware for battery-powered embedded systems with strong emphasis on power optimization.
  • Experience with bootloaders, OTA update systems, and production firmware reliability.
  • Experience with realtime embedded systems involving DMA, interrupts, concurrency, and low-latency data pipelines.
  • Experience with Bluetooth LE and Classic Bluetooth audio systems.
  • Strong hands-on debugging and bring-up experience across embedded hardware and firmware systems.
  • Experience working closely with cross-functional hardware and software teams in fast-paced product development environments.
  • Familiarity with Qualcomm Snapdragon platforms or similar wireless/audio SoCs.

Strong candidates may have
  • Deep expertise in one or more of the following areas:
    • realtime sensor acquisition and synchronization
    • Bluetooth/Wi-Fi connectivity systems
    • embedded audio and ANC systems
  • Experience with Qualcomm Snapdragon S-series platforms.
  • Familiarity with STM32-based embedded systems.
  • Experience with embedded audio interfaces such as I2S, PDM, TDM, or related protocols.
  • Experience with wireless coexistence optimization across Bluetooth, Wi-Fi, and proprietary RF systems.
  • Experience building ANC, beamforming, or low-latency audio systems.
  • Experience with embedded Linux systems.
  • Experience developing manufacturing firmware, calibration systems, or automated test infrastructure.
  • Experience with CI systems, automated testing, and firmware deployment pipelines.
  • Experience with Hardware-in-the-Loop (HIL) testing systems.
  • Experience with Python for tooling, automation, or instrumentation control.
  • Familiarity with secure boot, firmware signing, and device security.
  • Strong understanding of low-power embedded architecture and system-level power optimization.
  • Experience using lab instrumentation including oscilloscopes, logic analyzers, RF tools, and protocol analyzers.

Compensation Range
$150,000 - $200,000/year
Benefits
  • Competitive equity package
  • Comprehensive medical, dental, and vision insurance
  • Company size: 25-30 people
  • Unlimited PTO
  • Visa sponsorship
  • 4% 401k matching

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