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Semi-Senior Backend Developer (Node.js / Nest.js)
Full-time contractor · Fully remote

Cloudnonic is an international, fully remote cloud and software company. We build customized cloud-native systems for clients in Europe and North America, and we're looking for a Semi-Senior backend developer to join the team.

Who we are

Cloudnonic Corp. is a digitally native software and cloud startup based in the Kitchener/Waterloo area, Ontario, Canada. We're fully remote, with developers in Canada and South America and clients across Europe, North America, and South America. We work across healthcare, finance, construction, and manufacturing, and we take the time to understand each client's industry so we can serve it well with technology.

We're big on AI and the cloud. Our services range from app and web development to AI and cloud integration, plus technology consulting: designing feasible, secure, cost-effective architectures for non-technical clients and advising them on their tech stack.

The role





You'll join a healthcare project built in Node.js with Nest.js. You'll work with a wide range of code, libraries, and technologies, review other developers' code, and build the kind of adaptability that comes from switching between technologies rather than staying in one repository.

We deliver AI-first. AI generates our tickets and acceptance criteria, we pair with AI while developing, and every pull request goes through AI review before a senior engineer reviews it. That makes us fast. It also means we have no room for developers who can only prompt. You need to be able to read what the AI produced, know when it's wrong, and fix it yourself: solid fundamentals in JavaScript, Node.js, data structures, HTTP, and databases are the baseline, not a bonus. If you can't explain your code without the tool that wrote it, this isn't the role for you. Part of our technical interview is done without AI assistance.

You'll work directly w

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