Job
Description
Position: Backend Developer Experience:2-5 Years Core Responsibilities: Develop and maintain backend services for MCPTT applications using Java, Kotlin, Go, or Python (Java preferred for telecom stacks). Handle real-time communication protocols such as SIP, RTP/RTCP, and MSRP. Implement signaling and control protocols like HTTP/HTTPS, WebSockets, and MQTT. Work with 3GPP standards for MCPTT server logic and integrate Diameter Protocol, ProSe server handling, and GBA. Integrate media servers and gateways using libraries like Jitsi, FreeSWITCH, and Kurento. Manage databases such as PostgreSQL, MongoDB, or Cassandra for storing user and group metadata. Implement security measures including TLS, HTTPS, SRTP, IPSec, and OAuth2/token-based access. Utilize messaging and event systems like Kafka, RabbitMQ, or ZeroMQ for asynchronous group communication signaling. Monitor and ensure resilience using Prometheus, Grafana, HAProxy, and Consul. Work with operating systems CentOS and RedHat 8,9. Implement and manage CI/CD pipelines using tools like Jenkins, GitLab, ansible and jfrog to automate testing and deployment processes. **Qualifications:** Bachelor's degree in Computer Science, Engineering, or related field. 2-5 years of experience in backend development. Proficiency in Java, Kotlin, Go, or Python. Experience with real-time communication protocols and signaling/control protocols. Familiarity with 3GPP standards and media server integration. Knowledge of database management and security implementation. Experience with messaging systems and monitoring tools. Strong problem-solving skills and ability to work in a team environment. **Experience with DevOps practices and CI/CD pipeline implementation.* Show more Show less
