Back-End Developer

Imagine a future where everyone has instant, low-cost access to intelligence. We’re building a fully featured European AI cloud—with everything one needs to train, experiment with, and deploy AI models. In addition, our GPUs run on 100% renewable energy.

We’re ambitious, curious, and gutsy doers. We practice a low hierarchy across the company and high morale in our teams. We’ve already achieved a lot, yet we’re only getting started. Now it’s your chance to join the ride. We offer more than just the job—we offer a career-defining opportunity to be part of building something big!

Why you don’t want to miss this opportunity?

• We are a AI cloud provider based in Northern Europe, building a sovereign EU cloud and the first hyperscaler in Europe.
• You’ll be an integral part of the small yet mighty team of 50, challenging the status quo to positively impact the lives of many people.
• You’ll get generous cash & equity compensation.
• Our operations have been profitable since the beginning, in addition to fast growth.
• Deloitte ranked us 9th of the 50 fastest-growing tech companies in Finland in 2024.
• Our customers include names like Freepik, Sony, Schibsted Media, 1X.
• You’ll work in small teams of experts.
• DataCrunch is international (26 nationalities) and diverse (infrastructure, hardware, software engineering, AI and ML researchers and engineers, designers, etc.).
• We foster a community-like atmosphere: we often enjoy each other’s company after work, e.g., munching BBQ made by Ruben, our CEO by day and master chef by night.

Practicalities

• Hybrid mode: This role requires presence in our Kamppi office at least 3 days per week. Don’t worry—you won’t be alone or hangry there.
• Level of expertise: For this team, we’re hiring multiple engineers, across multiple levels. Please indicate your current level of expertise in the application!
• Employment type: Full-time and permanent.

• Contribute to building an AI cloud of the future.
• Work on various components of your choice: billing systems, IAM, authentication, APIs, queue-based systems, resource provisioning, and others.
• Work closely with SRE engineers and data center team to build APIs for fast and robust resource provisioning.
• Participate in improving the deployment workflows and CI/CD pipelines.
• Pay close attention to information security principles, and use them to drive engineering decisions.
• Communicate with customers for troubleshooting and support.

Must-haves

• 3-5 years of experience as a Back-end.
• Proficiency with TypeScript.
• Experience with Python and/or Go is a plus.
• Experience with Node.js ecosystem - NestJS, Express, or similar frameworks.
• Experience with designing, building, and maintaining micro-service architectures.
• Proficiency in working with SQL databases and designing scalable data models.
• Experience with maintaining public RESTful APIs.
• Proficiency in testing frameworks and setting up testing suites.

Nice-to-haves

• Familiarity with Kubernetes and DevOps practices.

Personal skills

• You take pride in your work.
• You can get your expert opinion across while playing well with others.
• Your critical thinking and readiness to make an impact are on by default.
• You learn new things not because you have to but because you genuinely love it.

Success criteria for this role in the next 6-12 months

• You’ve developed a good understanding of our overall stack and can contribute in many parts of the codebase.
• You know where to start looking for the root cause whenever you see an issue.
• You’re confident in architecting and developing larger features/microservices for our product.

Apply sooner than later. This job ad will be removed when we’ve found the right person.

Please submit your application via our recruitment system. For more information, you can reach out to our Talent Acquisition Partner, Marina at marina (at) datacrunch.io.

1. Introduction chat with the TA Partner (45 mins): Learn more about DataCrunch and share your career aspirations.
2. Take-home assignment: Show how you work and think.
3. Technical interview with the team (60 mins): Dive deeper into the assignment and your expertise with your potential colleagues.
4. Final interview (60 mins): Meet with our CEO, CTO, and the rest of the team.