Backend Engineer, Programmable Communications & VoIP

Aircall; Madrid; Presencial; EUR 70.000 - 100.000; Jornada completa

Descripción de la vacante

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace.

Aircall’s Team is driven by AI-enabled assets and a relentless focus on reliability. The Programmable Communications Team designs scalable backend services and maintains robust CI/CD pipelines to support

Formación

• Experience building backend services with a focus on security, scalability, availability, and performance.
• Strong knowledge of CI/CD pipelines, infrastructure-as-code, automated testing, and deployment best practices.
• Hands-on with GitLab CI/CD, release workflows, code reviews, and continuous delivery in production.

Responsabilidades

• Design and build highly scalable and secure backend services, ensuring high availability, performance, and security to support high-volume workloads.
• Design and maintain robust CI pipelines (GitLab CI), release workflows, and automated testing to implement continuous delivery best practices in production environments.
• Debug and optimize the application's performance, focusing on memory leaks and CPU usage in a desktop environment, critical for maintaining a high audio quality during calls.
• Operate, monitor, and optimize distributed systems in AWS production environments
• Lead initiatives to improve the reliability, resilience, and performance of our distributed systems, from design through production operation.
• Apply a deep understanding of RTC / VoIP architectures and protocols
• Participate in an on-call rotation to respond to critical system issues.

Conocimientos

Backend dev

Security mindset

Scalability

Performance

Distributed systems

English proficiency

CI/CD

Docker/Kubernetes

AWS

VoIP knowledge

Herramientas

GitLab CI/CD

Docker

Kubernetes

AWS

FreeSWITCH

Kamailio

Asterisk

Descripción del empleo

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace.

Aircall’s Team is driven by AI-enabled assets and a relentless focus on reliability. The Programmable Communications Team designs scalable backend services and maintains robust CI/CD pipelines to support