Application Guide

How to Apply for Senior Engineer, Core Infrastructure (Remote, US)

at Renew Home

🏢 About Renew Home

Renew Home is building the world's largest sustainable virtual power plant by aggregating and optimizing distributed energy resources like smart thermostats and batteries. Their mission to decarbonize the grid through software and data platforms makes this a unique opportunity to work on infrastructure that directly impacts climate change at scale.

About This Role

As a Senior Engineer on the Core Infrastructure team, you'll design and maintain the cloud foundation that powers Renew Home's energy management platform. Your work on networking, security, CI/CD, and developer tooling will enable fast, reliable deployments while ensuring the safety and scalability of systems managing millions of devices.

💡 A Day in the Life

You might start by reviewing security alerts and patching vulnerabilities in core infrastructure, then pair with a developer to debug a CI/CD pipeline issue. After lunch, you could write a CDK construct to standardize network segmentation across new services, and end the day by participating in an incident review for a recent production event.

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Interview Prep

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🎯 Who Renew Home Is Looking For

  • Has 5-10+ years of experience with a strong software engineering background (Python, Java, or Go) and can write production-quality code for infrastructure tooling.
  • Deep hands-on experience with AWS (or GCP/Azure) including networking, IAM, and container orchestration with Docker/Kubernetes.
  • Expertise in infrastructure-as-code (CDK/Terraform) and CI/CD pipelines, with a focus on security and developer experience.
  • Proven track record operating production systems at scale, with a proactive approach to vulnerability management and incident response.

📝 Tips for Applying to Renew Home

1

Highlight specific AWS services you've used (e.g., VPC, EKS, IAM) and how you improved security or reliability through infrastructure-as-code.

2

Quantify impact: mention metrics like 'reduced deployment time by 40%' or 'managed 100+ Kubernetes clusters'.

3

Showcase your software engineering skills by including examples of Python/Go code you wrote for infrastructure automation, not just config files.

4

Tailor your resume to emphasize experience with vulnerability management, secrets hygiene (e.g., Vault, AWS Secrets Manager), and network segmentation.

5

Include a link to your GitHub or a portfolio with infrastructure projects, especially if they involve CDK/Terraform and CI/CD.

✉️ What to Emphasize in Your Cover Letter

["Express passion for sustainability and how your infrastructure skills can help build the 'largest sustainable power plant'.", "Emphasize your experience with security-first infrastructure (patching, IAM, segmentation) and how it aligns with Renew Home's need for safe, scalable systems.", "Mention your proficiency in Python/Go and how you've used them to build reusable infrastructure components.", 'Describe a specific challenge you solved related to multi-cloud or containerized environments at scale.']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Understand Renew Home's product: how they aggregate smart thermostats, batteries, and other devices to form a virtual power plant.
  • → Read about their partnerships (e.g., with Google Nest, energy utilities) to grasp the scale and integration complexity.
  • → Check their engineering blog or tech talks (if any) to learn about their current infrastructure stack and challenges.
  • → Review recent news or press releases about their growth or sustainability impact to speak knowledgeably in interviews.

💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Design a secure multi-account AWS architecture for a distributed energy management platform.
2 How would you implement a secrets rotation strategy for thousands of devices and services?
3 Walk through a time you improved CI/CD pipeline reliability or developer velocity; what metrics did you use?
4 Explain how you would handle a Kubernetes cluster upgrade with zero downtime for a production fleet.
5 Describe your approach to incident response for a network segmentation failure that exposes internal services.
Practice Interview Questions →

⚠️ Common Mistakes to Avoid

  • Focusing only on IaC without demonstrating software engineering skills (e.g., writing scripts, building tools).
  • Neglecting security: failing to mention experience with vulnerability management, patching, or IAM best practices.
  • Being vague about scale: avoid generic statements like 'worked with Kubernetes' without mentioning cluster size or challenges.

📅 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 Renew Home!

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