Senior Firmware Engineer

Lunar Energy

$120K — $175K *
Energy & Utilities
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Degree in computer engineering or related field, or equivalent experience
  • 2+ years in firmware development for new products
  • Experience with communication protocols like CAN and Protocol Buffers
  • Familiarity with Espressif ESP-IDF product development
  • Knowledge of embedded Ethernet stacks and TCP/IP protocols
  • Proficiency in C, plus familiarity with cmake and Python
  • Experience with lab testing equipment such as Oscilloscopes and Logic Analyzers

Responsibilities

  • Collaborate with cross-functional teams to enhance product understanding and market readiness
  • Brainstorm and evaluate new features to improve product offerings
  • Test designs through calculations, simulations, and validation tests
  • Design firmware for home energy product components, including control algorithms and diagnostics
  • Optimize manufacturing processes by designing automation in product components

Benefits

  • Medical, dental, and vision insurance for employees and dependents
  • Flexible Paid Time Off plus 10 paid holidays
  • Tax deferred 401(k) plan
  • Paid parental leave for all full-time employees
  • Subsidized EV charging and pre-tax commuter benefits
Full Job Description
Sr Firmware Engineer

Embedded/Firmware Engineers at Lunar will be responsible for the full product development lifecycle of our products' firmware and software, which are important sources of functionality, adaptability, and optimization of our designs. We are looking for people who are passionate about a more sustainable future, and want to make that vision a reality. An ideal candidate is excited and ready to collaborate closely with a dedicated, cross-functional team to deliver innovative, best-in-class products. Engineers at Lunar are hands-on and involved in all aspects of the product, and own the design from forming concepts based on first principles to managing high-volume production quality.

On a given day at Lunar, you'll likely...
  • Work collaboratively with other disciplines across the company to continuously refine and improve our understanding of how our products can create the greatest impact, get to market quickly, and operate reliably for our customers
  • Help us create the best possible products by brainstorming and evaluating new features and solutions and weighing pros and cons to narrow down options.
  • Test ideas and designs: back-of-the envelope calculations, building simulations and designing validation tests
  • Design firmware software that runs in our home energy product components: Power electronics controls, system-level behaviors and optimization, mobile app design and interfaces, system diagnostics and updates, RF and powerline communication protocols, control algorithms, and installation automation features.
  • Optimize manufacturing by designing automation support functionality in our components whose design reflects the part they play in the processes that create them and test them, and by supporting our features within our manufacturing partners

Ideal Candidate Skills:

Ideal candidates will have development experience with a wireless mesh network framework like esp-wifi-mesh, and will have been part of a development team which released high volume products where 24/7 communications reliability was a core requirement.

Desired Skills:
  • Degree in a computer-engineering related or adjacent field, or demonstrated commensurate ability.
  • 2+ years experience delivering firmware for new products as part of a team.
  • Experience with communication protocols, CAN, Protocol Buffers
  • Espressif ESP-IDF product development experience
  • Embedded Ethernet stacks, TCP/IP, BSD Socket API, HTTPS
  • Wireless communication experience: WiFi, WiFi Mesh, Bluetooth/BLE, BLE-Mesh
  • Proficiency in C, and working familiarity with cmake and Python
  • Working knowledge of Oscilloscopes, Logic Analyzers and other lab test equipment

Benefits:

We're dedicated to creating a remarkable employee experience. At Lunar, competitive base pay is one part of our total compensation package. Lunar employees also have the opportunity to become Lunar shareholders by getting equity in a fast-growing company and participating in our employee stock program.

Additional benefits include:
  • Medical, dental, and vision insurance for employees and dependents
  • Flexible Paid Time Off plus 10 paid holidays
  • Tax deferred 401(k) plan
  • Paid parental leave for all full time employees including 12 weeks paid parental leave for the birthing mother and 6 weeks paid parental leave for the non-birthing parent
  • Subsidized EV charging and pre-tax commuter benefits

Our Compensation Philosophy: Our goal is to ensure that all Lunar Energy employees are fairly compensated. Please note that the salary range information that follows is a good faith estimate for this position provided pursuant to the Pay Transparency for Pay Equity Act for California applicants. The salary range estimate for this position depending on level of experience is $120,000 - $175,000 USD

The actual offer, reflecting the total compensation package & benefits, will be at the company's sole discretion, and determined by factors including but not limited to years of experience, job level, geographic location, and other relevant business considerations. The company also reserves the right to amend or modify this job description, employee perks, and benefits at any time.

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