Senior Java Voice Engineer, CX Platform

This is a fully remote position, open to applicants in Canada.

📋 Description

• Create and develop programmable voice services, APIs, and call-control functionalities for enterprise-level communication platforms.

• Construct and enhance voice infrastructure utilizing FreeSWITCH, Kamailio, SIP, RTP, WebRTC, and associated technologies.

• Design and implement backend services in Java and Spring Boot, along with communication APIs.

• Execute call routing, session management, media handling, carrier integrations, and processing of voice traffic.

• Architect highly available and scalable systems capable of managing substantial volumes of real-time communication traffic.

• Diagnose signaling, media, telephony, and call-quality issues across distributed environments.

• Integrate voice services with contact centers, routing systems, digital engagement tools, CRM, identity platforms, and reporting systems.

• Specify non-functional requirements for availability, performance, concurrency, security, privacy, observability, disaster recovery, and supportability.

• Evaluate designs and code, pinpoint technical risks, question assumptions, and drive practical decision-making.

• Set engineering standards, reusable patterns, quality checkpoints, documentation expectations, and guidance for technology adoption.

• Collaborate with client stakeholders, Product, Architecture, QA, DevOps, Security, Operations, and vendors to oversee delivery and address critical technical challenges.

⛳️ Requirements

• Over 8 years of software engineering experience, with significant ownership of architecture and technical delivery for distributed applications.

• Extensive hands-on expertise with FreeSWITCH and/or Kamailio, encompassing call control, dial plans, media services, ESL, modules, and platform customization.

• Proficiency in developing API-driven communication platforms, voice services, or solutions akin to CPaaS.

• Strong understanding of SIP, RTP, WebRTC, session control, media handling, and telephony troubleshooting.

• Expert-level hands-on experience with Java, Spring Boot, microservices, REST APIs, persistence, security, testing, and performance engineering.

• Thorough knowledge of API-first design, event-driven architecture, messaging, distributed systems, and cloud-native engineering.

• Experience with PostgreSQL or similar relational databases, data modeling, integration data flows, and transactional design.

• Practical experience with contact center or CX platforms and concepts related to customer routing and engagement.

• Exceptional communication skills, with the ability to produce clear technical documentation and facilitate client-facing workshops.

• Nice to have: experience with OpenSIPS, Asterisk, Twilio, SignalWire, or similar communication platforms.

• Nice to have: background in building routing engines, IVR platforms, voice bots, or omnichannel engagement services.

• Nice to have: familiarity with Genesys, NICE, Five9, Amazon Connect, Cisco, Avaya, or similar contact center platforms.

• Nice to have: knowledge of Kafka or RabbitMQ, Kubernetes, Jenkins, observability platforms, API gateways, and security architecture.

• Practical experience with AI-assisted software development or AI-enabled solutions is a plus.

🏝️ Benefits

• Health insurance

• Relocation program

• Remote work flexibility

• Professional development opportunities

• Certification programs

• Mentorship and talent investment initiatives

• Internal mobility opportunities

• Internship opportunities

• Collaboration on impactful global projects

• Inclusive and supportive workplace environment

• Regular team-building company social events