Senior VoIP Engineer — VoIP Operations

Job Overview:

The Voice and Communications Engineer will operate secure and optimize enterprise VoIP contact center and messaging platforms across Asterisk/FreePBX hosted PBX carrier and AWS environments. The role includes SIP and RTP troubleshooting voice-quality monitoring automation API and CRM integrations messaging compliance and Tier-2/Tier-3 production support. The engineer will also support high availability disaster recovery security hardening and continuous improvement of voice and messaging services.

Job Responsibilities:

• Operate maintain and harden production Asterisk/FreePBX clusters and PBX environments including dialplans queues IVRs trunks and recording.
• Administer and support new deployments and the hosted GoToConnect PBX provisioning extensions call flows trunk configuration and end-user troubleshooting.
• Manage SIP trunks and PSTN connectivity with carriers provisioning routing LCR DID/TFN management and incident coordination.
• Monitor call-quality KPIs (ASR ACD MOS jitter packet loss PDD) and lead remediation when SLAs are at risk.
• Operate VoIP and supporting workloads on AWS EC2 VPC security groups Route 53 S3 CloudWatch and related services.
• Maintain network reachability NAT traversal firewall and QoS configurations to ensure stable RTP/SIP traffic.
• Manage backups snapshots patching and disaster-recovery procedures for voice infrastructure.
• Build and maintain integrations between Asterisk and Custom in-house VOIP Portals and Dynamics 365 click-to-call screen-pop call logging contact sync and CDR push.
• Integrate telephony with internal and third-party AI systems (voicebots transcription sentiment analysis AI dialers IVR automation).
• Operate and maintain messaging services across 10DLC SMS longcode shortcode and fax including carrier registration brand/campaign compliance throughput management and DLR reconciliation.
• Maintain and support in-house web applications built on Laravel that interact with the telephony platform bug fixes minor enhancements deployment and operational support (deep Laravel development is not required but the ability to navigate debug and modify the codebase is essential).
• Write Python and Bash automation for provisioning configuration management log parsing CDR processing health checks and recurring operational tasks.
• Develop scripts and small tools that integrate Asterisk AMI/ARI REST APIs (HubSpot Dynamics 3CX GoToConnect SMS gateways) and internal services.
• Build dashboards alerting and runbooks using tools such as Grafana Zabbix/Nagios Homer sngrep and CloudWatch.
• Reduce manual operations through automation provisioning user onboarding/offboarding trunk failover and routine audits.
• Harden VoIP and messaging infrastructure against toll fraud SIP scanning brute-force attempts and abuse; manage TLS/SRTP fail2ban ACLs and rate limits.
• Ensure adherence to 10DLC CTIA and TCPA requirements for messaging traffic and applicable regulations for voice (E911 where relevant).
• Maintain accurate version-controlled technical documentation network diagrams runbooks and SOPs
• Act as Tier-2/Tier-3 escalation for voice messaging and integration incidents.
• Partner with development NOC and contact-center teams on rollouts migrations and continuous improvement.
• Participate in an on-call rotation for production voice and messaging services.
  

Qualifications:

• Bachelors or Masters degree in Computer Science Software Engineering or a related field.
• 3-5 years of experience in enterprise voice engineering working with Linux-based telephony platforms and scripting or programming languages for automation and system integration.
• Good understanding of Linux environments including shell scripting configuration and system backups.
• Strong experience with Asterisk FreeSWITCH Kamailio/OpenSIPS SIP proxies and other open-source VoIP platforms.
• Working knowledge of WebRTC-based voice & video communication and open-sourceVoIPecosystems.
• Deep understanding of SIP signaling RTP/SRTP DTMF codecs NAT traversal and fax (T.38/Passthrough) troubleshooting.
• Strong knowledge of SIP trunking carrier interconnects DID provisioning number portability E911 and telecom regulations.
• Experience implementing high availability (HA) redundancy failover disaster recovery and business continuity solutions for mission-critical voice platforms.
• Ability to interpret system diagrams architecture blueprints call flows and carrier workflows across on-premises and cloud environments.
• Excellent verbal and written communication skills required for cross-functional coordination and vendor interaction.

Compensation and Benefits:

Financial:

• Competitive salary and bi-annual bonus.
• Fast track and uncapped career growth for high performers.
• Company-sponsored vehicle financing (car and bike).
• Interest-free loans.
• Provident Fund: CureMD matches up to 8% of your base salary.

Health and Wellness:

• In-house clinic with a team of certified male and female doctors with 24/7 telemedicine service.
• Hospital treatment monitoring by company doctors.
• Comprehensive health coverage for your immediate family (outpatient inpatient maternity and parents inpatient).
• Exclusive health benefits and discounts at top class clinics and labs.

Supportive Workplace:

• Pick-up and drop-off services for female employees.
• In-house daycare facility.
• In-house gym and recreational area to unwind.

Continued Learning:

• Company-sponsored trainings workshops development programs and retreats.
• Paid specialized trainings/certifications.

The Difference Youll Make:

At CureMD every role whether senior or junior plays a pivotal part in transforming healthcare. By joining our innovative team youll contribute to groundbreaking technology that directly impacts patient care enhances healthcare efficiency and saves lives globally. Your skills and passion will drive meaningful change helping us deliver solutions that support healthcare professionals in critical real-time settings. Together were not just advancing technology were making a tangible difference in peoples lives. Together lets save lives.