Backend Developer (Spring + Java/Kotlin)

We’re looking for a Backend Developer to help us build UXfolio, our flagship product. UXfolio is a website builder with a clear mission: help junior UX designers build lovable UX portfolios that turn their career dreams into reality.

You’ll be contributing to this mission in a small team of 3 product designers, 4 developers, 2 marketers, and a determined product lead. Together, we cultivate a supportive and open-minded environment that celebrates uniqueness, efficiency, and drive. Our work and product strategy are guided by four core values: easy – we reject overcomplication; different – we think outside the box; delightful – we go beyond just getting it done; and stable – we build things that last.

What you bring

• You have strong experience using Spring with Java/Kotlin.

• You have experience designing and building RESTful APIs.

• You are comfortable working with NoSQL databases (preferably MongoDB) and understand data modeling, indexing, and aggregation pipelines.

• You have experience with containerization or cloud platforms (e.g., Docker, AWS, GCP, or Heroku).

• You have experience using Git.

• You are familiar with CI/CD pipelines and build automation (e.g., GitHub Actions).

• You have a good understanding of application performance, scalability, and security principles.

• You are familiar with HTML, CSS, JavaScript, and a frontend framework (it’s a plus if you have experience with Vue.js, but experience with React or Angular is also relevant).

• You are comfortable exploring, evaluating, and integrating AI-powered capabilities and services into backend systems.

• You are a team player and ready to exchange ideas, learn from others, and share your knowledge with your team members.

• You have great communication skills and are fluent in English.

• You are based in Hungary and available to visit our Budapest office twice a week.

What you’ll do

• Build user-friendly web applications.

• Design, build, and maintain scalable and reliable backend services.

• Take ownership of product features from concept to deployment, focusing on backend architecture and integrations.

• Develop and maintain RESTful APIs that power our frontend applications.

• Work with databases (MongoDB) to design efficient data models and ensure performance and data integrity.

• Contribute to configuring and improving our cloud infrastructure and deployment processes.

• Collaborate closely with frontend and product teams to deliver complete, high-quality features.

• Be part of product decisions (e.g., what features we build).

• Experiment with new technologies and tools.

The stack we use

• Backend: Spring Framework (we use Kotlin, but it’s perfectly fine if you know Java and are open to learning Kotlin).

• Frontend (optional): Vue.js, but experience with React or Angular is also relevant.

• Deployment: Heroku for hosting our main application.

• Infrastructure: DigitalOcean for external services like our Keycloak authentication server and Caddy reverse proxies.

• Third-party integrations: AWS S3 for image storage and Stripe for payments.

• Version control: Git.

• CI/CD: GitHub pipelines.

• Design: Figma for UI.