Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 56 days ago

Firmware Engineer

Critical Loop11 open roles

Pay
$160,000 – $200,000 a year
Where
Torrance (Hybrid)
Work mode
Hybrid
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowFirmware EngineerCritical Loop · Torrance (Hybrid)

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Critical Loop's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

8.1% of postings close within 7 days. Measured by our own scanner across the market. Critical Loop postings stay open a median of 9 days.

Share of postings closed within
  1. 1.7%1 day
  2. 3.6%3 days
  3. 8.1%7 days
  4. 15.0%14 days
  5. 33.9%30 days
This job: posted 56 days ago

Critical Loop median: 9 days open

The posting

About Critical Loop

Critical Loop is shaping the next generation of energy systems by building the integrated edge grid of the future. Specializing in advanced energy management and battery control systems, Critical Loop empowers businesses and communities to seamlessly unite distributed energy resources for faster, more reliable, and affordable grid access. With deep expertise in grid modernization and a passion for creating resilient, responsive energy solutions, Critical Loop drives innovation at the intersection of technology and energy.

We’re looking for a software engineer who is comfortable working beyond conventional application boundaries. You’ll contribute to everything from drivers and communication services running on embedded Linux hardware to backend systems, data pipelines, and the interfaces used by customers and operators.

You’ll collaborate directly with hardware engineers and develop software that controls and monitors physical systems deployed in the field. If you enjoy work where software has real-world consequences—and where debugging sometimes involves a multimeter—this role is for you.

This role is Hybrid in local market (Torrance and commutable surrounding areas)

Responsibilities:

- Design and build software spanning embedded drivers, device communications, backend services, data pipelines, and operator-facing interfaces

- Develop the network communication and driver layers that power our site controllers and distributed energy resources

- Build and maintain automated data pipelines for utility interval data analysis and real-time energy monitoring

- Collaborate with hardware engineers to develop and iterate on embedded system designs

- Help architect systems that are reliable, observable, maintainable, and deployable across physically distributed sites

- Participate in hardware bring-up, field testing, commissioning, and debugging of deployed systems

- Own features from initial design through deployment and field validation

Requirements:

- Proficiency in one or more systems programming languages, such as C, C++, or Rust

- Experience with a higher-level language used for services, automation, or data processing, such as Python or Go

- Experience writing firmware, drivers, or hardware-facing software for embedded targets

- Comfort working close to hardware, including reading schematics, debugging over serial or JTAG, and reasoning about timing and electrical behavior

- Experience building backend services and APIs, ideally for real-time, distributed, or telemetry-driven systems

- Ability to take ownership of ambiguous problems and operate with minimal oversight in a fast-moving startup environment

Preferred Requirements:

- Familiarity with industrial protocols such as Modbus, DNP3, or CAN bus

- Experience with SCADA systems, distributed energy resources, or industrial controls

- Experience with battery energy storage systems, inverters, power conversion equipment, or other grid-edge hardware

- Background in aerospace, defense, robotics, automotive, or other safety-critical embedded domains

- Exposure to machine learning, signal processing, controls, or data analysis in a hardware context

- A degree in physics, computer engineering, electrical engineering, or a related technical discipline

Work Authorization Critical Loop does not provide visa sponsorship for this role. Please do not apply for this role if at any time (now or in the future) you will need immigration support (i.e H-1B, TN, STEM OPT training plans etc.).

At Critical Loop, we're committed to rewarding and supporting our team. Our benefits package includes equity ownership through stock options, giving you a stake in our success, along with comprehensive health coverage (medical, dental, and vision) through an HRA with a generous allowance. We also provide a retirement savings plan and unlimited paid time off so you can recharge and maintain work-life balance.

Critical Loop is an equal opportunity employer. We're committed to building a diverse team and creating an inclusive workplace where everyone can thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other protected characteristic under applicable law.

From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against Critical Loop's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on Critical Loop's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    Critical Loop's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.