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

Requirements

• 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

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