Software Engineer

#vacancy #VoIP / #Asterisk Engineer (Fintech) | Remote | $2,000–3,000

Key Requirements

• 3+ years of commercial experience in a relevant role.
• Strong expertise in Asterisk (versions 13 and above).
• Hands-on experience building and maintaining VoIP solutions for contact centers or fintech environments.
• In-depth understanding of SIP and RTP protocols, including NAT and QoS.
• Experience configuring and managing SIP trunks.
• Experience configuring IVR workflows, agent queues, and skill-based routing, including fallback and overflow logic.
• Experience with call recording, CDR, and CEL.
• Strong Linux administration skills (Ubuntu/Debian) in production environments.
• Practical experience securing VoIP infrastructure, including protection against brute-force attacks, Fail2Ban, firewall configuration, ACLs, and rate limiting.
• Experience integrating Asterisk with external systems, including CRM, billing, antifraud solutions, and APIs.
• Experience using AMI / ARI to integrate Asterisk with backend systems.
• Understanding of financial systems requirements, including reliability, auditability, and logging.
• Ability to quickly understand and troubleshoot complex or legacy systems.

Responsibilities

• Maintain and continuously improve the company’s telephony platform.
• Ensure the stable operation of support, collections, and sales communication channels.
• Configure and maintain IVR menus, call queues, and routing logic in line with business processes.
• Integrate the telephony platform with internal services, including CRM, backend systems, and billing.
• Ensure high availability and minimize system downtime.
• Monitor call quality and key performance metrics, including SLA, ASR, and ACD.
• Identify and resolve latency and call-quality issues.
• Optimize system performance and support infrastructure scaling.
• Upgrade and improve the existing VoIP infrastructure.
• Create and maintain technical documentation covering call flows, routing, and integrations.
• Collaborate with cross-functional teams, including backend, support, and security.