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Miratech

Senior Programmable Voice Engineer – CX Platform

Miratech

. Design and develop programmable voice services, APIs, and call-control capabilities for enterprise-scale communications platforms .

Posted 10/7/2026full-timeRemote • CanadaSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive expertise in designing and developing programmable voice services and APIs, with a strong focus on FreeSWITCH, Kamailio, and Java-based backend services. Capable of architecting scalable systems for real-time communications and integrating with various platforms while ensuring high availability and performance.

Highest-signal resume keywords
FreeSWITCH ExpertiseJava DevelopmentAPI-Driven Communication PlatformsSIP and RTP KnowledgeDistributed Systems Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
JavaSpring BootFreeSWITCHKamailioSIPRTPWebRTCPostgreSQLMicroservicesREST APIs
Soft Skills
Excellent Communication SkillsTechnical Documentation
Tools & Technologies
KubernetesJenkinsKafkaRabbitMQOpenSIPSAsteriskTwilioSignalWireGenesysAmazon Connect
Industry Keywords
Voice ServicesCall ControlTelephony TroubleshootingCustomer EngagementOmnichannel Engagement

Tech Stack

Tools & technologies
CloudDistributed SystemsJavaJenkinsKafkaKubernetesMicroservicesPostgresRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact
  • Design and develop programmable voice services, APIs, and call-control capabilities for enterprise-scale communications platforms
  • Build and extend voice infrastructure using FreeSWITCH, Kamailio, SIP, RTP, WebRTC, and related technologies
  • Design and develop Java and Spring Boot backend services and communication APIs
  • Implement call routing, session management, media handling, carrier integrations, and voice traffic processing solutions
  • Design highly available and scalable systems for large volumes of real-time communications traffic
  • Troubleshoot complex signaling, media, telephony, and call-quality issues across distributed environments
  • Integrate voice services with contact center, routing, digital engagement, CRM, identity, and reporting platforms
  • Define non-functional requirements for availability, performance, concurrency, security, privacy, observability, disaster recovery, and supportability
  • Review designs and code, identify technical risks, challenge assumptions, and drive pragmatic quality, time, and cost decisions
  • Establish engineering standards, reusable patterns, quality gates, documentation expectations, and technology adoption guidance
  • Collaborate with client stakeholders, Product, Architecture, QA, DevOps, Security, Operations, and vendors
  • Govern delivery and resolve critical technical issues

Requirements

What you’ll need
  • 8+ years of software engineering experience
  • 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
  • Experience building API-driven communication platforms, voice services, or CPaaS-style solutions
  • Strong knowledge 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
  • Deep understanding of API-first design, event-driven architecture, messaging, distributed systems, and cloud-native engineering
  • Experience with PostgreSQL or comparable relational databases, data modeling, integration data flows, and transactional design
  • Hands-on experience with contact center or CX platforms and customer routing and engagement concepts
  • Excellent communication skills
  • Ability to produce clear technical documentation and lead client-facing workshops
  • Experience with OpenSIPS, Asterisk, Twilio, SignalWire, or comparable communications platforms is nice to have
  • Experience building routing engines, IVR platforms, voice bots, or omnichannel engagement services is nice to have
  • Experience with Genesys, NICE, Five9, Amazon Connect, Cisco, Avaya, or comparable contact center platforms is nice to have
  • Familiarity with Kafka or RabbitMQ, Kubernetes, Jenkins, observability platforms, API gateways, and security architecture is nice to have
  • Practical experience with AI-assisted software development or AI-enabled solutions, including Claude or GitHub Copilot, is a plus

Benefits

Comp & perks
  • Health insurance
  • Relocation program
  • Remote work flexibility / Work From Anywhere Culture
  • Professional development opportunities
  • Certification programs
  • Mentorship and talent investment programs
  • Internal mobility opportunities
  • Internship opportunities
  • Opportunity to collaborate on impactful projects for top global clients
  • Inclusive and supportive work environment
  • Regular team-building company social events
  • Sustainable business practices focused on IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality