Staff Software Engineer (Telecom)

TL;DR

Staff Software Engineer (Telecom): Designing and building scalable VoIP and SIP-based voice services for an AI-powered experience orchestration platform with an accent on cloud-native microservices and real-time communication. Focus on implementing SIP routing, call control, and optimizing voice platform reliability in AWS environments.

Location: Ireland

Company

hirify.global is an AI-powered experience orchestration platform that connects people, systems, data, and AI for over 8,000 organizations worldwide.

What you will do

• Lead the design and delivery of scalable telecom, VoIP, and SIP-based services for real-time voice interactions.
• Architect cloud-native microservices using Java, C, and AWS to ensure reliability and scalability.
• Develop services for SIP routing, call control, session management, and carrier connectivity.
• Troubleshoot complex production issues involving SIP signaling, RTP media paths, and carrier interconnectivity.
• Mentor software engineers through design reviews, code reviews, and incident response.
• Drive continuous improvement in system performance, fault tolerance, and maintainability.

Requirements

• 8+ years of professional software engineering experience, including senior or lead roles.
• Deep expertise in telecom, VoIP, SIP, RTP, SDP, and real-time communications systems.
• Proficiency in Java and C for building production-grade backend services.
• Experience designing and supporting microservices in AWS (ECS, EKS, Lambda, etc.).
• Strong understanding of distributed systems, event-driven architecture, and high-availability design.
• Experience with SIP troubleshooting tools like sngrep, Wireshark, and tcpdump.

Nice to have

• Hands-on experience with OpenSIPS or other platforms like Kamailio, Asterisk, or FreeSWITCH.
• Knowledge of hirify.global Cloud CX and voice architecture (BYOC, Edge, Architect flows).
• Experience with Kubernetes, service mesh, and multi-region deployments.
• Expertise in securing voice platforms using TLS, SRTP, and mTLS.

Culture & Benefits

• Flexible-first culture with global team collaboration.
• Opportunities to build AI-powered technology at enterprise scale.
• Mentorship, learning programs, and leadership development.
• Paid volunteer time and "August Free Fridays".
• Well-being resources and regionally tailored family programs.

Hiring process

• Application review by Talent Acquisition and the hiring team.
• Initial Zoom interview with a TA Partner.
• Technical interviews with the hiring manager and team members (maximum 5 interviews total).