Senior Backend Engineer (Java)

We are Rockup - a startup building a new kind of social networking and messaging mobile app focused on real-time geolocation. Think Telegram meets Tinder, but with a focus on location and communities - a tool for connecting with the people around you when you need it most.

Backed by a profitable sister company, we have the energy and agility of a startup coupled with resources of a mature organization. We are expanding our product team, and are looking for a Backend Engineer who’s ready to share ownership of the backend — from architecture to execution.

This is your chance to join early and influence a product that could scale to millions of users around the world.

 

Responsibilities


  • Architect, develop, and maintain scalable and secure backend systems for our mobile app
  • Design and implement real-time communication, geolocation services, and data storage solutions
  • Build and optimize APIs to support a smooth and responsive mobile experience
  • Ensure system reliability, security, and efficiency through best practices in database management and cloud infrastructure
  • Participate in key decisions on backend tech stack, infrastructure, and team processes
  • Monitor and improve system performance, ensuring minimal downtime and optimal response times
  • Collaborate with the mobile engineers to ensure seamless integration between frontend and backend
  • Establish CI/CD pipelines, testing and deployment strategies for smooth development workflows

Yêu cầu


  • 5+ years of experience in backend development, ideally with consumer-facing mobile apps
  • Strong expertise in Java, with experience in scalable backend architectures
  • Experience designing and implementing RESTful and WebSocket-based APIs
  • Proficiency in working with databases (PostgreSQL or similar)
  • Familiarity with geolocation-specific tools (e.g. PostGIS or similar)
  • Experience with cloud platforms (AWS, GCP, or Azure) and containerization (Docker)
  • Strong understanding of authentication, authorization, and data security best practices (OWASP Top 10, GDPR & HIPPAA compliance)
  • Comfortable working in an early-stage startup environment, making key architectural decisions and adapting quickly
  • Upper intermediate level of English, knowledge of Russian will be an advantage
  • Java Oracle Certified for Associate/Professional/Master is preferred
  • Bonus points for participation in open-source projects

Điều kiện

Conditions

Exert direct influence on an early-stage product with global ambitions

Work in a hybrid setup from sunny Limassol, or remotely if you’re a great fit

Relocation package (if applicable), and help with the work permit

Competitive salary and fast growth opportunities as we expand beyond Cyprus

Any equipment you need, comfortable office space, the basics