Ruby on Rails Developer

Job Summary

We're currently looking for: Sr. Development Engineer (SDE-4)

About RingCX

RingCX is RingCentral's next-generation AI-powered Contact Center solution, designed to deliver seamless, intelligent, and personalized customer experiences across digital and voice channels. Built with a modern microservices architecture and deep AI integrations, it empowers businesses to automate, analyze, and act in real-time. Join us in shaping the future of customer engagement — where speed, empathy, and intelligence converge. Be part of a team that's redefining how the world connects.

Key Responsibilities

• Design, Build/Create digital channel solutions using Ruby on Rails, and classic Rails ERB.
• Work across backend services integrated with MongoDB, Redis, Sidekiq, and Memcached.
• Design systems leveraging WebSockets using Faye Server for real-time communication.
• Contribute to deployment automation and observability in a Docker, Kubernetes, and AWS environment, using Jenkins and ArgoCD for CI/CD.
• Promote and contribute to automation across all test layers using RSpec, Capybara, and Selenium.
• Be a technical leader and a go-to person for your area, and a sounding board for other peers in other areas and teams - be an end-2-end owner of solutions implemented, actively support them from the proof of concept through production deployment
• Perform design, and code reviews for the RingCX team and continuously look for opportunities to improve and optimize code quality
• Provide mentorship to junior team members, become a center of competence on every part of the product you contribute to
• Be ready to provide technical assistance and guidance to service engineering teams that answer customer requests
• Work in a distributed team spanning across multiple time zones
• Effectively communicate and collaborate on design and technology with management and other engineering teams

Requirements

• Bachelor's degree in Computer Science, Engineering or a related field or equivalent, is required
• 10+ years in engineering software development roles with strong backend experience in Ruby on Rails, frontend experience in ReactJS or Rails ERB.
• Deep expertise in event-driven, highly available, scalable systems using MongoDB, Redis, Sidekiq, and Memcached.
• Familiarity with Faye Server/WebSocket-based real-time application design.
• Hands-on experience with RSpec and Capybara/Selenium for backend and UI automation testing.
• Proficiency in working within Docker, Kubernetes, and AWS deployments using Jenkins/ArgoCD.
• Comfortable with frontend/backend integration and performance-sensitive design.
• Deep understanding of microservices architecture paradigm, event driven system design, distributed systems, eventual consistency principles
• RDBMS skills: writing advanced queries, designing table structure / indexes / triggers, query optimization / query plan analysis
• Experience with at least one public cloud platform, preferably with AWS

Nice to Have

• Industry experience in UCaaS/CCaaS, Telephony and PBX domains