Backend Developer (Node.js)
Nabu Casa
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- Location
- Spain, Czech Republic, Netherlands, United Kingdom, Canada, Italy, Portugal, Hungary, Greece, Poland, Canada
- Job Type
- full-time
- Salary
- 81.400 EUR
- Posted
- January 27, 2026
Job Description
About Nabu Casa
Nabu Casa, Inc was founded in 2018 by the founders of both Home Assistant, the open source home automation platform, and Home Assistant OS, the operating system that turns your device into a smart home hub powered by Home Assistant. These projects have seen an immense growth and have helped shape DIY home automation communities around the world.
After being involved in the Internet of Things industry for many years, we realized that there is a need for a cloud service that aims to put users, their privacy and their data first. Such a cloud can only be built as an extension to a platform that does the same: Home Assistant.
With Nabu Casa we are building this cloud service and we’re calling it Home Assistant Cloud.
We are a profitable company with no external investors. Our funding comes directly from users who subscribe to Home Assistant Cloud and purchase Home Assistant hardware, ensuring our only stakeholders are our employees and our users. We also support other open-source projects, including those focused on hardware, standards, and voice technology.
The role
Nabu Casa is looking for a full-time backend developer to join our Cloud & Infrastructure team and work primarily on Home Assistant Cloud services.
As one of the most active open-source projects in the world, Home Assistant exists because of its community. To empower this community and allow more users to enjoy the harder-to-reach features of Home Assistant, we have created our subscription service, Home Assistant Cloud. This service gives the community access to features usually reserved for power users with expensive hardware at home. Current features such as remote access and text-to-speech / speech-to-text support are made available without ever compromising on privacy. We're looking for someone who will maintain the existing features and infrastructure and help us create valuable new features with efficiency and privacy in mind.
What you are going to do
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Contribute to the design and implementation of scalable, high-performance, and reliable backend applications
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Participate in code reviews as part of our collaborative development process
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Collaborate with cross-functionally to define, design, and ship new features.
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Contribute to maintaining and improving the performance, quality, and responsiveness of the cloud services
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Implement security and data protection best practices in your work
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Stay up-to-date with industry trends and share best practices with the team.
What you need to have
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At least five years of professional experience in back-end development.
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At least two years of professional experience in Node.js/Typescript
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Basic knowledge of system administration
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Experience with cloud services (preferably AWS)
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Experience with Git & Github
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Fluent in English, both written and spoken
It would be great if you also have
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Experience in NestJS, Elixir, Terraform, Grafana or Python
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Personal experience using Home Assistant
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Knowledge in modern frontend app development
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Affinity with open-source development and philosophy
What we offer
Nabu Casa is a fully remote organization that uses Remote to employ people from all over the world. You will be a normal salaried employee in your country.
This is a full-time position for 40 hours per week. Because we are a fully remote company, there is no fixed schedule. For the purpose of team communication, we do try to ensure at least 3 hours of overlap in the workday. You will report to our Cloud team’s engineering manager, based in France.
Core to the establishment of Nabu Casa was the well-being of the people building the future of the smart home. We will provide all the benefits required by the country you reside in. However, we also want to make sure all our employees, regardless of country of origin, get at least a minimal set of benefits, including:
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Five weeks (twenty-five days) of paid time off.
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Fourteen days of paid sick leave if your country/laws treat them as unpaid.
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Six weeks of paid and six weeks of unpaid parental leave to be used in the first year after birth. We will provide the missing days if your country/laws do not provide such compensation.
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A budget for your work hardware once you start. After three years, you may keep this equipment for personal use.
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An annual smart home budget ensures you keep up-to-date with the latest smart homes offer.
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A 50% contribution to your internet connection fee at your home workspace.
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One day every two weeks to work on your personal projects.
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If you are currently working on Home Assistant-related side projects, you can spend work time maintaining them.
When first offering a position to a new member, Nabu Casa aims to provide a total compensation package that matches the 75th percentile for the new hire's role, seniority, and local market rates. For a this role in our primary operating countries, the approximate yearly compensation will be the following:
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Canada 129.100 CAD.
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Greece: 48.700 EUR.
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Hungary: 21.250.000 HUF.
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Netherlands: 81.400 EUR.
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Poland: 315.000 PLN.
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Spain: 67.000 EUR.
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UK: 74.500 GBP.
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Other countries: Compensation can be discussed during the first interview.
These figures may be adjusted based on experience, qualifications, and work hours.
About Us
Nabu Casa funds the development of Home Assistant and other projects at the Open Home Foundation, Nabu Casa is best known as the organization driving the development of Home Assistant, the world's largest free and open-source smart home platform. More than two million households benefit from its home automation capabilities. Powered by a worldwide community of open-source developers, GitHub ranked it the most active open-source project in the world in 2024.
We were initially founded to ensure that the development of Home Assistant would remain sustainable as it kept growing, but over time it has grown to support more open home initiatives. In 2024, the Open Home Foundation was formed to protect these open-source projects and ensure they thrive into the future. Nabu Casa is a commercial partner of the foundation, and our principles are aligned with a joint commitment to privacy, choice, and sustainability in the smart home. These are the values that we put at the heart of every decision we make. It’s woven into our architecture, licensing, community, and everything else.
Nabu Casa is profitable, has no external investors, and our only funding comes from people subscribing to Home Assistant Cloud and buying Home Assistant hardware. That means the only stakeholders we have to concern ourselves with are our employees and our users.
Other Open Home Foundation projects and collaborations supported by Nabu Casa include:
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Open hardware tools (e.g.,ESPHome, ESP Web Tools)
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Open standards (e.g., Python Matter Server, Z-Wave JS, ZigPy, BTHome, Improv Wi-Fi)
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Open voice (e.g., Rhasspy, Wyoming Protocol, Piper)
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Music Assistant
The recruitment process
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Apply for the role
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Our team will review your application with the hiring manager
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Screening
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Technical Test
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Team interview
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Interview with our CTO & CEO
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Offer
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Join our team!
🎯 Who is this job for?
This role is a strong fit for a mid-to-senior backend engineer who enjoys building privacy-focused, scalable cloud services and is comfortable owning production systems end to end. It will appeal to developers with solid Node.js and TypeScript experience, familiarity with AWS and basic system administration, and a mindset geared toward reliability, performance, and security in distributed environments. The position suits someone who values open-source culture, collaborates well in remote, cross-functional teams, and is motivated by building infrastructure and backend features that directly empower a large, global user community.
💬 Potential Interview Questions
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What is your experience with Node.js and TypeScript in backend development?
I’ve been building production backends with Node.js and TypeScript for several years, focusing on strongly typed APIs, background workers, and shared DTOs/types between services to keep contracts explicit and reduce regressions. -
How have you designed and implemented scalable backend services in previous roles?
I usually start with clear boundaries and small, focused services, expose well-defined HTTP or message-based interfaces, add caching where appropriate, and use horizontal scaling behind a load balancer. I rely heavily on observability (metrics, logs, tracing) and load testing to validate scalability assumptions. -
What is your experience with AWS or other cloud providers?
I’ve used AWS services like EC2, ECS/Fargate, Lambda, API Gateway, S3, CloudFront, RDS, DynamoDB, and CloudWatch for monitoring. I’m comfortable designing basic network topologies (VPC, subnets, security groups) and wiring services together with IAM roles and policies. -
How do you typically ensure security and data protection in your backend services?
I enforce least-privilege IAM roles, use HTTPS everywhere, validate and sanitize all inputs, store secrets in a secure service (e.g., AWS Secrets Manager), and encrypt data at rest and in transit. I also add proper authentication/authorization, rate limiting, and log access in an auditable way. -
Describe your experience with system administration and running services in production.
I’m comfortable on Linux, doing basic setup, service management, log inspection, and networking checks. In production, I’ve managed containerized services, built deployment pipelines, set up health checks, and tuned resource usage and alerts for stability. -
How do you approach monitoring and performance tuning for cloud services?
I start by defining SLOs and key metrics (latency, error rate, throughput, resource usage), then use dashboards and alerts (e.g., Grafana/CloudWatch). For tuning, I profile hotspots, optimize queries and data access patterns, add caching where safe, and adjust concurrency and instance sizing. -
What is your experience with Git and GitHub-based workflows?
I work with feature branches, small focused pull requests, and mandatory code reviews. I’m used to GitHub Actions or similar CI for running tests, linting, and building artifacts on every PR, and I keep commit history clean and meaningful. -
Have you worked with frameworks or tools like NestJS, Terraform, Grafana, or Python?
Yes. I’ve used NestJS to structure Node.js services with dependency injection and modules, Terraform to define and version cloud infrastructure, Grafana for dashboards, and Python for auxiliary scripts and small services where it made sense. -
What attracts you to working on Home Assistant Cloud and Nabu Casa in particular?
I really like that the business model is aligned with users, not advertisers, and that privacy and local control are core principles. Working on infrastructure that directly powers Home Assistant, an open-source project I respect, is very motivating to me. -
How do you stay current with backend and cloud best practices and share that knowledge with your team?
I follow relevant RFCs, blogs, and open-source projects, experiment with new tools in small side projects, and bring back what works in the form of internal docs, demos, or small proof-of-concept changes. I like to share patterns via code reviews and informal tech sessions.
📋 Job Summary
Nabu Casa (the company behind Home Assistant) is hiring a Backend Developer (Remote, GMT-5 to GMT+2) to build and scale privacy-first Home Assistant Cloud services. In this role you’ll design and maintain high-performance backend applications in Node.js/TypeScript on AWS, handle cloud infrastructure and basic sysadmin tasks, implement security and data protection best practices, and collaborate closely via Git/GitHub in a fully remote, open-source-friendly environment. It’s a great fit for someone with 5+ years backend experience (2+ in Node/TS) who cares about open source, smart homes, and reliability at scale; you’ll enjoy 5 weeks PTO, paid sick/parental leave, hardware and smart home budgets, 50% home-internet coverage, and market-competitive compensation (e.g. ~67k EUR in Spain, 81.4k EUR in NL, 74.5k GBP in UK, 315k PLN in Poland, 129.1k CAD in Canada), all funded directly by Home Assistant users—not external investors.
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