Senior Programmable Voice Engineer – CX Platform

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

📋 Description

• Create and implement programmable voice services, APIs, and call-control features for large-scale enterprise communication platforms.

• Develop and enhance voice infrastructure utilizing FreeSWITCH, Kamailio, SIP, RTP, WebRTC, and related technologies.

• Design and construct backend services and communication APIs using Java and Spring Boot.

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

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

• Diagnose complex signaling, media, telephony, and call quality problems across distributed environments.

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

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

• Review designs and code, highlight technical risks, challenge assumptions, and make pragmatic decisions that balance quality, time, and cost.

• Set engineering standards, reusable patterns, quality checkpoints, documentation expectations, and guidelines 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 experience in software engineering, with significant responsibility for the architecture and technical delivery of distributed applications.

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

• Proven track record of developing API-driven communication platforms, voice services, or CPaaS-style solutions.

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

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

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

• Familiarity 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.

• Strong communication skills, including the capability 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: experience in developing 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 solutions.

• 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, including Claude or GitHub Copilot, is a plus.

🏝️ Benefits

• Health insurance.

• Relocation program.

• Flexibility for remote work / Work From Anywhere Culture.

• Opportunities for professional development.

• Certification programs available.

• Mentorship and investment in talent programs.

• Opportunities for internal mobility.

• Internship opportunities.

• Involvement in impactful projects for top global clients.

• An inclusive and supportive work environment.

• Regular team-building social events.

• Commitment to sustainable business practices and social sustainability initiatives.