Aircall

Senior Infrastructure Engineer

Aircall • US
Hybrid
Aircall is a unicorn AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, faster resolutions, and scale. We’re redefining what a customer communications platform can be—by combining voice, SMS, WhatsApp, and AI into one seamless workspace.

Our momentum comes from a simple but powerful idea: help every customer-facing team work smarter, not harder. Aircall’s AI Voice Agent automates routine calls, AI Assist streamlines post-call tasks, and AI Assist Pro delivers real-time guidance that helps people do their best work. The result—companies grow revenue, deliver faster resolutions, and scale service.

We’ve built a product customers love and a business that scales fast. Aircall operates in nine global offices (Paris, New York, San Francisco, Sydney, Madrid, London, Berlin, Seattle, and Mexico City), and is backed by world-class investors. Our teams are shipping AI innovation faster than ever and expanding across new product lines and markets.

At Aircall, you’ll join a company in motion—ambitious, profitable, and product-driven—where impact is visible, decisions are fast, and growth is real.

How We Work at Aircall: At Aircall, we believe in customer obsession, continuous learning, and delivering extraordinary outcomes. We value open collaboration, taking ownership, and making smart, informed decisions with speed and precision. If you thrive in a fast-paced, team-driven environment where curiosity, trust, and impact matter, you'll fit right in

As a Senior Infrastructure Engineer you'll be responsible for managing and operating our AWS Cloud Infrastructure, whilst working in deep collaboration with peers and business teams. Previous hands-on experience with AWS is a must.

Key Responsibilities:

  • Deep hands-on knowledge of Cloud Infrastructure (AWS) across Compute (Containers & Serverless), Storage, Database and respective network and security concepts and a working knowledge of Infrastructure as Code solutions.
  • Deep understanding of DevOps practices and tools across CI/CD, Observability, Automation within the context of delivering high quality, resilient production applications.
  • Leads, with high-agency, the development of major, team-scoped, projects; drives initiatives from ideation to completion; takes responsibility for delivering outcomes.
  • Proactively communicates within and outside the team and collaborates effectively cross-functionally; escalates and removes blockers. Participates in team activities as support rotations, TDD discussions, etc.
  • Mentors and provides guidance to junior engineers
  • Has good product knowledge of Cloud Infrastructure; proactively fills the gaps and clarifies requirements and suggests improvements based on product knowledge and technical insights.
  • Writes production-ready code, finding appropriate solutions for complex challenges; leads software design discussions; Participates in code-reviews and provides constructive feedback
  • Writes good-quality documentation in order to solicit and receive the best feedback on proposals.
  • Ensures that the code delivered is fully tested, including edge cases, creating & maintaining excellent coverage through automated testing. Drives the performance and quality within their scope
  • Implements and maintains high-quality logging, monitoring, alerting, and instrumentation. Participates in troubleshooting & resolving incidents, leads the incident management process
  • Demonstrates a strong understanding of system infrastructure and DevOps principles; contributes to performance and quality within their scope; applies a security-first mindset  
  • Promotes engineering best practices across team’s scope.
  • Actively pursues improving engineering skills, including but not limited to problem solving, writing readable/testable/efficient code, mastering technology in our stack, and anticipating scaling issues.
  • Be highly productive - have a reputation for getting things done quickly and efficiently.
  • Requires very little oversight from team leads or managers
  • Be able to communicate well with all engineers regardless of seniority
  • Interviews prospective candidates and provides thoughtful evaluations and feedback
  • Qualifications:

  • 5+ years of experience operating AWS Infrastructure
  • Monitoring & Observability with Datadog
  • CI/CD: Gitlab, ArgoCD
  • IaC: Terraform, Cloudformation (SAM)
  • AWS datastores : RDS Aurora MySQL & PostgreSQL, DynamoDB, Neptune, S3, Redshift
  • Containerization: Docker and EKS & Service Mesh - Istio