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VoIP Software (Node.js / Python) Engineer Employment Type: Full-time Location: Remote (Employed by Ufinity Ventures, deployed to international client) About Us: Ufinity Ventures is a dynamic talent solutions company supporting international clients by building high-performing remote teams in India. Professionals employed through Ufinity work directly with global technology companies while benefiting from structured HR, payroll, and compliance support. You will be deployed to work with one of our international clients engaged in building modern, scalable software platforms and digital applications. Role Summary: We are seeking a VoIP Backend Developer with strong hands-on programming experience in Node.js and/or Python, combined with practical experience in VoIP technologies such as SIP, RTP, and Asterisk/Kamailio platforms. This role requires a developer mindset, focusing on backend service development and VoIP platform integration. Job Background We are seeking an energetic and highly skilled VoIP Software Engineer who thrives on solving complex technical challenges and building scalable communication systems. In this role, you will contribute to the design, development, and maintenance of SIP-based VoIP infrastructure, integrations, and backend services. You will work closely with distributed teams to deliver reliable, high-quality communication solutions used by global customers. Key Responsibilities: Design and develop backend services using Node.js and/or PythonBuild and maintain RESTful APIsWork with Asterisk / Kamailio / FreeSWITCHTroubleshoot SIP / RTP / WebRTC issuesIntegrate third-party APIsWork with Linux-based environmentsOptimize performance and scalabilityWork with MySQL / PostgreSQL databasesCollaborate using Git workflowsParticipate in debugging and production support Mandatory Skills: Candidates must have all of the following: 3+ years Node.js OR Python backend developmentExperience with Express.js / FastAPI / DjangoHands-on experience with REST API developmentExperience with Asterisk OR Kamailio OR FreeSWITCHStrong knowledge of SIP / RTPExperience working in LinuxExperience with MySQL or PostgreSQLExperience with Git Preferred Skills WebRTC experienceAWS (EC2, S3, ECS)Docker / KubernetesRabbitMQ / SQSGrafana / Zabbix Experience Range: 510 Years Total Experience With: Minimum 3+ years Backend Development VoIP Software (Node.js / Python) Engineer Employment Type: Full-time Location: Remote (Employed by Ufinity Ventures, deployed to international client) About Us: Ufinity Ventures is a dynamic talent solutions company supporting international clients by building high-performing remote teams in India. Professionals employed through Ufinity work directly with global technology companies while benefiting from structured HR, payroll, and compliance support. You will be deployed to work with one of our international clients engaged in building modern, scalable software platforms and digital applications. Role Summary: We are seeking a VoIP Backend Developer with strong hands-on programming experience in Node.js and/or Python, combined with practical experience in VoIP technologies such as SIP, RTP, and Asterisk/Kamailio platforms. This role requires a developer mindset, focusing on backend service development and VoIP platform integration. Job Background We are seeking an energetic and highly skilled VoIP Software Engineer who thrives on solving complex technical challenges and building scalable communication systems. In this role, you will contribute to the design, development, and maintenance of SIP-based VoIP infrastructure, integrations, and backend services. You will work closely with distributed teams to deliver reliable, high-quality communication solutions used by global customers. Key Responsibilities: Design and develop backend services using Node.js and/or PythonBuild and maintain RESTful APIsWork with Asterisk / Kamailio / FreeSWITCHTroubleshoot SIP / RTP / WebRTC issuesIntegrate third-party APIsWork with Linux-based environmentsOptimize performance and scalabilityWork with MySQL / PostgreSQL databasesCollaborate using Git workflowsParticipate in debugging and production support Mandatory Skills: Candidates must have all of the following: 3+ years Node.js OR Python backend developmentExperience with Express.js / FastAPI / DjangoHands-on experience with REST API developmentExperience with Asterisk OR Kamailio OR FreeSWITCHStrong knowledge of SIP / RTPExperience working in LinuxExperience with MySQL or PostgreSQLExperience with Git Preferred Skills WebRTC experienceAWS (EC2, S3, ECS)Docker / KubernetesRabbitMQ / SQSGrafana / Zabbix Experience Range: 510 Years Total Experience With: Minimum 3+ years Backend Development