Application Guide

How to Apply for Senior Software Engineer - IoT

at Voltus

🏢 About Voltus

Voltus is at the forefront of the energy transition, connecting distributed energy resources (DERs) to grid flexibility markets. Their remote-first, entrepreneurial culture and mission to combat climate change make them a compelling choice for engineers who want to make a tangible impact on the energy landscape.

About This Role

As a Senior Software Engineer on the edge technology team, you'll be instrumental in scaling Voltus's IoT fleet management and cloud architecture, directly supporting the accelerated deployment of thousands of devices. Your work will enable real-time energy monitoring and demand response participation, contributing to a more resilient and sustainable grid.

💡 A Day in the Life

A typical day might involve collaborating with firmware engineers on OTA update strategies, designing cloud services to handle telemetry data from thousands of devices, and participating in stand-ups with a distributed team. You might also spend time debugging a device connectivity issue, writing infrastructure-as-code, or reviewing pull requests for edge services. The work is dynamic, with a mix of deep technical problem-solving and cross-functional communication.

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🎯 Who Voltus Is Looking For

  • Experienced with cloud architecture (AWS, GCP, or Azure) and designing scalable IoT solutions.
  • Proficient in embedded firmware development (C/C++ or Rust) and comfortable working with hardware constraints.
  • Skilled in fleet management, OTA updates, and device provisioning at scale.
  • Demonstrates awareness, empathy, intentionality, and curiosity—the key cultural attributes highlighted in the job description.
  • Authorized to work in the US or Canada without sponsorship.

📝 Tips for Applying to Voltus

1

Tailor your resume to highlight specific IoT projects, especially those involving large-scale deployments or edge computing.

2

In your cover letter, explicitly connect your passion for climate change and renewable energy to Voltus's mission.

3

Showcase any experience with remote work and distributed teams, as Voltus is a remote-first company.

4

Mention any familiarity with energy markets, demand response, or DERs, even if it's from adjacent industries.

5

Be prepared to discuss examples of how you've demonstrated 'bright, gritty, and good' qualities in your past roles.

✉️ What to Emphasize in Your Cover Letter

['Emphasize your experience with IoT fleet management and cloud architecture at scale.', 'Highlight your ability to work autonomously in a remote environment and collaborate across time zones.', "Express genuine enthusiasm for the clean energy transition and Voltus's role in it.", 'Mention specific technical achievements, such as reducing downtime, improving OTA update success rates, or scaling a device fleet.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Learn about Voltus's platform and how they connect DERs to energy markets—read their website and any recent news.
  • → Understand the basics of demand response and how IoT devices enable it.
  • → Check out Voltus's engineering blog or any public talks by their team to get a sense of their tech stack.
  • → Look into the regulatory landscape for DERs in the US and Canada to understand the market context.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 How would you design a cloud architecture to handle a sudden 10x increase in device connections?
2 Describe a time you had to debug a firmware issue remotely on a deployed device. What was your process?
3 What strategies would you use to ensure secure and reliable OTA updates for thousands of devices?
4 How do you prioritize tasks when managing both cloud development and firmware improvements?
5 Can you give an example of a time you demonstrated 'intentionality' in your engineering decisions?
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⚠️ Common Mistakes to Avoid

  • Avoid generic resumes that don't highlight IoT-specific skills or experience.
  • Don't neglect to mention your authorization to work in the US or Canada—this is a clear requirement.
  • Avoid a cover letter that focuses solely on technical skills without addressing the company's mission and values.

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Voltus!

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