Senior Programmable Voice Engineer (CX Platform)

Location: Remote, Ireland or the United Kingdom

Company

hirify.global is a global IT services and consulting company delivering digital transformation solutions for enterprise and startup clients across more than 25 countries.

What you will do

• Design and develop programmable voice services, APIs, and call-control capabilities for enterprise communications platforms.
• Build voice infrastructure with FreeSWITCH, Kamailio, SIP, RTP, WebRTC, and related technologies.
• Develop Java and Spring Boot backend services for voice capabilities, communication APIs, routing, session management, and media processing.
• Design highly available and scalable systems for high-volume real-time communications traffic and troubleshoot signaling, media, telephony, and call-quality issues.
• Integrate voice services with contact center, CRM, identity, reporting, routing, and digital engagement platforms.
• Collaborate with clients, Product, Architecture, QA, DevOps, Security, Operations, and vendors while defining engineering standards and resolving critical technical issues.

Requirements

• 8+ years of software engineering experience with substantial ownership of architecture and technical delivery for distributed applications.
• Deep hands-on expertise with FreeSWITCH and/or Kamailio, including call control, dial plans, media services, ESL, modules, and platform customization.
• Strong knowledge of SIP, RTP, WebRTC, session control, media handling, telephony troubleshooting, and real-time communications.
• Expert hands-on experience with Java, Spring Boot, microservices, REST APIs, persistence, security, testing, and performance engineering.
• Experience with API-first design, event-driven architecture, messaging, distributed systems, cloud-native engineering, and PostgreSQL or comparable relational databases.
• Experience with contact center or CX platforms and excellent technical communication skills, including documentation and client-facing workshops.

Nice to have

• Experience with OpenSIPS, Asterisk, Twilio, SignalWire, or comparable communications platforms.
• Experience building routing engines, IVR platforms, voice bots, or omnichannel engagement services.
• Experience with Genesys, NICE, Five9, Amazon Connect, Cisco, Avaya, or comparable contact center platforms.
• Familiarity with Kafka, RabbitMQ, Kubernetes, Jenkins, observability platforms, API gateways, and security architecture.
• Practical experience with AI-assisted software development or AI-enabled solutions.

Culture & Benefits

• Remote work with a Work From Anywhere culture within the stated role location.
• Competitive compensation and benefits, including health insurance and a relocation program.
• Professional development through certifications, mentorship, talent investment, and internal mobility programs.
• Global client projects, multicultural collaboration, regular team-building events, and an inclusive work environment.
• Equal opportunity employment and a focus on social sustainability.