Backend Developer

This is a full-time hybrid role in Stockholm (minimum 3 days per week in office)

Who we are

We are Kisi, a physical security technology company that accelerates a world where the right people can share physical resources at any time. Founded in 2012, Kisi operates from a headquarter in Brooklyn (USA), an office in Stockholm (Sweden), and a remote team across the globe.

What we do

We bring simple and secure physical security to people and organizations anywhere. Our award-winning hardware and compliance-certified software form the core of our physical security platform that helps businesses around the world connect and control their spaces through the cloud. With our seamless access experience and real-time data and analytics we help make spaces available to the right people at any time. But don’t just take our word for it: explore our award-winning Reader Pro, which recently won the coveted GOOD DESIGN award as well as the prestigious iF Design Award. Curious about how Kisi works? Check out this short product demo.

How and why we do it

At Kisi, you will have the freedom to do your work in the way you work best. There’s a flat hierarchy (work alongside our co-founders Carl, Max, and Bernie!), a strong sense of ownership, and the freedom to get creative. We also try to limit meetings as much as possible so that you can have dedicated focus time. Our mission is clear: ensure ease of facility access and remote space management, providing access systems to create a secure future where spaces are connected and accessible without boundaries.

Your role

As a Backend Developer at Kisi, you will be an essential part of our team, responsible for helping us build a highly robust and scalable public API. You'll have the opportunity to work on projects big and small, collaborate with our web, mobile, and hardware teams, and design and maintain internal frameworks and standards. Our fast-paced environment means that you'll never be bored, and you'll have the chance to work on cutting-edge technology that is solving real-world problems for hundreds of thousands of users around the world.

We move fast, plan frequently, release to production daily, and keep our meetings short. Our API is currently a Rails monolith running on Heroku & GCP, and we're documenting it with OpenAPI 3. Familiarity with this stack is a big plus!

Your responsibilities

As a Backend Developer, your primary responsibilities will include designing, building, and maintaining efficient, reusable, and reliable Ruby code. You'll be responsible for ensuring the best possible performance, quality, and responsiveness of our applications, identifying bottlenecks and bugs, and devising solutions to these problems. You'll also be expected to help maintain code quality, organization, and automation.