شرح موقعیت
We are looking for a Senior Backend Developer with strong Java expertise and hands-on experience with Redis and PostgreSQL. The role requires strong system design and architecture capabilities, with a focus on building scalable, secure, reliable and production-ready applications. Design, develop and maintain robust, scalable and high-performance backend applications using Java. Contribute to system design and architecture for large-scale production applications. Design solutions that scale effectively with increasing traffic, workload and data volume. Build and optimize caching and high-performance data access solutions using Redis. Design, optimize and manage relational data solutions using PostgreSQL. Analyze real-time production scenarios, identify bottlenecks and implement reliable technical solutions. Improve application reliability, availability, fault tolerance and overall production readiness. Work closely with infrastructure, DevOps and application teams to manage end-to-end system behavior. Identify application and system security risks and implement appropriate preventive and mitigation measures. Support troubleshooting, performance tuning, incident resolution and continuous improvement of production systems. Required Skills Strong hands-on backend development experience with Java and frameworks such as Spring/Spring Boot. Strong knowledge of system design, software architecture and large-scale/distributed application design. Hands-on experience with Redis, including caching strategies, data structures and performance optimization. Strong PostgreSQL experience, including database design, SQL optimization, indexing and performance tuning. Strong understanding of scalability, high availability, reliability, concurrency and production system performance. Experience designing, deploying and supporting production-grade applications. Good understanding of infrastructure concepts, deployment environments and application-to-infrastructure interactions. Strong knowledge of application security principles, secure coding and handling common application attacks. Strong scenario-based problem-solving, troubleshooting and technical decision-making skills. Preferred Skills Experience with microservices and distributed systems. Exposure to cloud platforms, containers, Kubernetes and CI/CD environments. Experience with monitoring, observability, logging and production incident management. Knowledge of API security, authentication/authorization and performance engineering. Experience mentoring developers or contributing to architecture and engineering standards.