Senior Software Engineer; Platform Infrastructure

We are looking for an experienced Java Software Engineer to join our Platform team and help develop an award-winning REST API for our Unified Communications service. In the Platform team, we build high-load infrastructure subsystems that address cross-cutting concerns in a geo-distributed environment, including API and Web Socket Gateways, distributed caches, and service discovery. You will have the chance to design and develop highly available, globally distributed systems that maintain 99.999% availability, process more than 100,000 requests per second, handle more than a million concurrent Web Socket connections, and consistently meet millisecond-level latency targets.

• Java
• Netty
• Redis
• Kafka
• Kubernetes
• Docker
• Oracle Coherence

• Drive implementation and support of highly available backend infrastructure and services, collaborating closely with senior engineers on design decisions.
• Work with architects and other stakeholders to convert high-level requirements into component-level designs and implementation tasks.
• Support products throughout the release cycle, including QA support and production incident investigation.
• Develop and extend CI/CD pipelines to automate testing and meet team-specific delivery requirements.
• Work in an Agile team and contribute to improving development processes and team effectiveness.

• Solid backend development experience (5+ years) and excellent Java programming skills.
• Experience building high-load, fault-tolerant distributed systems.
• Understanding of microservices architecture and inter-service communication patterns (synchronous/asynchronous communication, message queues, L4/L7 load balancing).
• Familiarity with network fundamentals (TCP/UDP, HTTP, Web Socket, DNS).
• Excellent problem-solving skills and a proactive approach to identifying and addressing technical challenges (concurrency bugs, memory leaks).
• Experience working with Linux operating systems.
• Good spoken and written English communication skills.
• Additional:
  Experience building public APIs.
• Additional:
  Experience with Netty or other low-level/high-performance frameworks; understanding of non-blocking I/O concepts.

• Well-coordinated professional team.
• Life assurance and private medical insurance.
• Competitive salary.
• Great opportunities for self-realization, professional and career growth.
• Corporate training programs, free language courses.
• Excellent work environment and good collaboration.
• Opportunity to be a part of the international company.

Ring Central is an EEO/AA employer.