Senior Software Engineer- Video Signalling

About the role

At Twilio, we're shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you're part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we're acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! . See yourself at Twilio Join the team as Twilio's next Senior Software Engineer. This position is needed to design, build, and optimize the core signalling infrastructure that powers real-time video communications for our customers. You will play a key role in ensuring high performance, reliability, and scalability of our video platform, enabling seamless and secure video experiences.

Responsibilities

• In this role, you'll:
• Design, implement, and maintain video signalling protocols and server components for real-time video calls (e.g., WebRTC, SIP, RTCP/RTP) in a highly scalable distributed system.
• Collaborate with cross-functional distributed teams and various stakeholders to deliver high-performance, low-latency media experiences.
• Ensure secure transmission and compliance with industry best practices (e.g., end-to-end encryption, privacy standards).
• Contribute to architectural decisions and code reviews, mentoring junior engineers as needed.
• Stay current with advancements in real-time communications and video technologies.
• Diagnose and resolve signalling and media operational issues, with opportunities to enhance existing troubleshooting processes and tools; build tools and analytics for call quality and debugging (e.g., log analysis, packet traces).
• Participate in the refinement of the team's ticket backlog, estimating work and follow Agile ceremonies.

Requirements

• Required:
• 5+ years experience in Java.
• Experience with complex distributed systems or real time systems
• Experience working in the cloud, AWS, Google, Azure
• Experience with multi-threading, concurrency and asynchronous software development
• Bachelors in Computer Science or equivalent experience
• Support Video services as a part of on-call duties
• Desired:
• Bonus points for experience with one of the following technologies: Rust/C++, WebRTC, Gstreamer.
• Location
• This role will be remote, and based in Ireland.
• Travel
• We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings.

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