Principal Embedded Engineer

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    "description": "<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">About the Role</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">Wavelynx makes access control readers — the hardware and firmware that decide whether a door opens. We’re a PE-backed company scaling fast, and we’re building the engineering team that will take us there. This role is for a senior embedded / firmware engineer who wants to own hard problems in a constrained environment and build things that work reliably in the real world.</span></p>\n<p><br></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">You’ll be working on Zephyr RTOS-based firmware for our APEX reader platform — nRF5340 dual-core, BLE, NFC/HF, LF prox, OSDP, and the full stack that sits on top of it. The problems are real: sub-millisecond timing, thread scheduling, protocol compliance, secure boot, power budgets, and manufacturing at volume. If you’ve spent time wondering why a GPIO edge got dropped or whether the UART FIFO overflowed, you’ll fit in.</span></p>\n<p><br></p>\n<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">What You’ll Do</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">You’ll own features from requirements through production — driver development, subsystem design, integration, debugging, and validation. You’ll write firmware that goes into real products and stays in them for years. You’ll work closely with hardware, software, and manufacturing, which means you need to communicate clearly and write specs that other people can actually use. You’ll also help build the validation infrastructure that gives us confidence before a release ships.</span></p>\n<p><br></p>\n<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">What We’re Looking For</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">A degree in Electrical Engineering or Computer Engineering is strongly preferred.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  In embedded firmware, the fundamentals matter. That background shows up in how people think about hardware-software interaction, timing, and signal integrity in ways that are hard to replicate otherwise.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Real RTOS experience</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\"> at the thread and scheduler level — Zephyr or FreeRTOS. Not just the API surface. You should understand priority inversion, preemption, and why getting that wrong causes problems that are very hard to find.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Protocol experience at the driver level.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  SPI, I2C, UART, BLE — we’re not looking for someone who used a library. We want someone who has read the datasheet, written the driver, and debugged it with a logic analyzer when it didn’t work.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">High-volume manufacturing background.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  If you’ve had to think about production test coverage, manufacturing calibration, firmware provisioning at scale, or what happens when a unit comes back from the field, that experience matters here.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Performance and reliability are hard requirements, not a goal.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Experience in storage devices, medical devices, industrial controls, or automotive translates well. These environments force habits that carry into everything you build afterward.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Security fundamentals.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Experience with secure boot, firmware signing, key management, or TrustZone is a plus and will become more relevant as we grow.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">FPGA programming experience.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Experience designing and programming FPGAs using VHDL or Verilog is a strong plus. If you understand how hardware logic intersects with firmware and have worked at that boundary, that background is directly relevant to what we build.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Ability to debug with limited tools.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  A UART and a logic analyzer should be enough. If you’ve only worked in environments with a full debug suite and a large support team, this role will be a stretch.</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">You can write.</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Not prose — technical documentation. Specs, design notes, comments that explain the why, not just the what. We’re building a team that can hand work off and pick it up, and that only works if people write things down.</span></p>\n<p><br></p>\n<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Skills</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Languages:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  C (primary), Python, C++</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">RTOS / Platforms:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Zephyr, FreeRTOS, ARM Cortex-M / Cortex-A</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Hardware Description Languages:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  VHDL, Verilog</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Protocols:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  UART, SPI, I2C, BLE, NFC/HF, LF, OSDP</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Debug Tools:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Logic analyzers, oscilloscopes, JTAG/SWD debuggers, GDB</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Version Control:</span><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">  Git</span></p>\n<p><br></p>\n<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">What Doesn’t Show Up in a Job Description But Matters Most</span></p>\n<p><span style=\"font-family: Arial, sans-serif; font-size: 12pt\">We’re looking for people who take ownership, ask questions when something doesn’t make sense, and push back when a requirement is wrong rather than just building what they’re told. </span></p>\n<p><br></p>\n<p><span style=\"color: rgb(31, 45, 61); font-family: Arial, sans-serif; font-size: 12pt; font-weight: bold\">Logistics &amp; Compensation</span></p>\n<ul>\n<li><span style=\"font-size: 12pt\">Location: Broomfield, CO. Hybrid schedule (2-days remote) after the initial 90-day onboarding period.</span></li>\n<li><span style=\"font-size: 12pt\">Base Annual Salary</span><span style=\"font-size: 12pt\">: $190,000-225,000 </span><span style=\"font-size: 12pt\">plus eligibility for an annual company bonus program and merit increases.</span></li>\n</ul>\n<ul>\n<li><span style=\"font-size: 12pt\">Retirement: After 30 days, eligible for the company 401(k) program, where you are 100% vested immediately and features up to a 6% 401(k) match.</span></li>\n<li><span style=\"font-size: 12pt\">Health: Great rates on company-sponsored medical, dental, and vision insurance, with HSA-eligible plans available.</span></li>\n<li><span style=\"font-size: 12pt\">Growth: We prefer to build talent from within, offering substantial opportunities for cross-collaboration and engineering career advancement, plus a $2,500 educational grant opportunity. </span></li>\n</ul>",
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