Senior Java Voice Engineer (CX Platform)

We are looking for a Senior Programmable Voice Engineer to develop programmable voice capabilities call control services media processing and API-driven communications infrastructure similar to Twilio and other CPaaS platforms. The role includes designing and building the voice platform powering next-generation customer experience solutions using technologies such as FreeSWITCH Kamailio SIP WebRTC Java and Spring Boot. It suits a senior engineer who can move confidently between architecture code delivery risk non-functional requirements and client-facing technical discussions.

Responsibilities:

• 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 backend services and communication APIs using Java and Spring Boot to expose voice capabilities to internal and external applications.
• Implement call routing session management media handling carrier integrations and voice traffic processing solutions.
• Design highly available scalable systems capable of handling large volumes of real-time communications 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 decisions that balance quality time and cost.
• 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 to govern delivery and resolve critical technical issues.

Qualifications :

• 8 years of software engineering experience including 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 knowledge of voice infrastructure and real-time communications including 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 the operational concepts behind customer routing and engagement.
• Excellent communication skills including the ability to produce clear technical documentation and lead 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 or RabbitMQ Kubernetes Jenkins observability platforms API gateways and security architecture.
• Practical experience with AI-assisted software development or AI-enabled solutions including tools such as Claude or GitHub Copilot is a plus.

Additional Information :

We offer:

• Culture of Relentless Performance: join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
• Competitive Pay and Benefits: enjoy a comprehensive compensation and benefits package including health insurance and a relocation program.
• Work From Anywhere Culture: make the most of the flexibility that comes with remote work.
• Growth Mindset: reap the benefits of a range of professional development opportunities including certification programs mentorship and talent investment programs internal mobility and internship opportunities.
• Global Impact: collaborate on impactful projects for top global clients and shape the future of industries.
• Welcoming Multicultural Environment: be a part of a dynamic global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
• Social Sustainability Values: join our sustainable business practices focused on five pillars including IT education community empowerment fair operating practices environmental sustainability and gender equality.

* Miratech is an equal opportunity employer and does not discriminate against any employee or applicant for employment on the basis of race color religion sex national origin age disability veteran status sexual orientation gender identity or any other protected status under applicable law.

Remote Work :

Yes

Employment Type :

Full-time