Remote Senior Programmable Voice Architect (CPaaS)

Miratech; Illinois; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Health benefits

Remote work flexibility

Professional development

Relocation assistance

Global project impact

Job summary

Miratech is seeking a Senior Programmable Voice Engineer to architect and implement programmable voice capabilities for enterprise-scale platforms. You will work across architecture, code, and client discussions, using FreeSWITCH, Kamailio, SIP, WebRTC, Java, and Spring Boot to power API-driven communications solutions.

You will design scalable, highly available systems, integrate with contact center and CRM platforms, and lead critical technical decisions to balance quality and cost.

Qualifications

• 8+ years in software engineering with distributed apps and architecture ownership.
• Hands-on with FreeSWITCH and/or Kamailio, call control and media services.
• Experience building API-driven voice platforms and CPaaS-like solutions.
• Expert Java/Spring Boot, microservices, REST, security, and performance.
• Knowledge of API-first design, event-driven systems, and cloud-native engineering.
• PostgreSQL experience and data modeling for transactional design.
• Experience with contact center or CX platforms and routing concepts.
• Excellent written and spoken communication; able to lead client workshops.

Responsibilities

• Design and develop programmable voice services, APIs, and call-control for enterprise platforms.
• Extend voice infra using FreeSWITCH, Kamailio, SIP, RTP, WebRTC and related tech.
• Build backend services in Java/Spring Boot exposing voice capabilities.
• Implement routing, session management, media handling, and carrier integrations.
• Ensure highly available, scalable systems for real-time traffic; troubleshoot issues.
• Integrate voice with contact center, CRM, and engagement platforms.
• Define non-functional requirements: availability, performance, security, observability.
• Review designs, identify risks, and drive cost-benefit decisions.
• Establish engineering standards and adoption guidance; collaborate with stakeholders.

Skills

FreeSWITCH

Kamailio

SIP

WebRTC

Java

Spring Boot

API-first design

Microservices

REST APIs

Security

Observability

PostgreSQL

Contact center/CX

Troubleshooting

Architecture ownership

Education

Bachelor's degree in Computer Science or related field

Tools

OpenSIPS

Asterisk

Twilio

Kafka

Kubernetes

Jenkins

Observability platforms

Job description

Miratech is seeking a Senior Programmable Voice Engineer to architect and implement programmable voice capabilities for enterprise-scale platforms. You will work across architecture, code, and client discussions, using FreeSWITCH, Kamailio, SIP, WebRTC, Java, and Spring Boot to power API-driven communications solutions.

You will design scalable, highly available systems, integrate with contact center and CRM platforms, and lead critical technical decisions to balance quality and cost.