Senior Backend & Platform Architect

Madrid Office, ES

Posted on Mar 26, 2026

Full TimeSeniorHybridEngineering

Job Description

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.

Our momentum comes from a simple idea: help teams work smarter, not harder. Aircall’s AI Voice Agent automates routine calls, AI Assist streamlines post-call work, and AI Assist Pro delivers real-time guidance so people can do their best work. The result is higher revenue, faster resolutions, and teams that scale with confidence.

Aircall is headquartered in Paris, our European HQ, with a strong North American presence anchored in Seattle, our North American HQ, and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We’ve built a product customers love and a business that’s scaling quickly, backed by world-class investors and driven by rapid AI innovation across multiple product lines.

At Aircall, you’ll join a company in motion. We’re ambitious, product-driven, and execution-focused, with visible impact, fast decisions, and real growth.

How we work at Aircall: We’re customer-obsessed, data-driven, and focused on delivering meaningful outcomes. We value ownership, continuous learning, and thoughtful speed. If you thrive in a collaborative, fast-moving environment where trust and impact matter, you’ll feel at home here.

Within Aircall, we are launching a specialized New Product Unit to build the future of autonomous sales. We are improving the AI Orchestration Layer—a system that records and understands every customer interaction (calls, video, email, WhatsApp) to autonomously execute sales workflows: CRM updates, follow-ups, task creation, and coaching insights.Our long-term vision is to evolve this into a self-improving, agentic Sales OS—where specialized AI agents collaborate, coordinate, and continuously optimize the revenue process.

The Role:
We are looking for a Senior Backend & Platform Engineer to join us as our "Founding Platform Engineer." This is a unique, hybrid role where your impact is split: 50% Infrastructure/Platform (building the foundation, automation, and reliability) and 50% Backend Development (building core Python services and integrating them into our stack). You will be the bridge between the code we write and the environment where it lives, architecting the intelligence layer of a future autonomous Sales OS.

About Aircall

Aircall is the phone and communication platform, designed for sales and support teams. It is an entirely cloud-based voice solution, easy to use, reliable and integrated with all CRMs and critical business and conversational tools such as Salesforce, HubSpot, Intercom, Slack, Gong, and many others. Through a combination of its powerful software and dedicated people, Aircall helps SMBs drive productivity and turn customer and employee satisfaction into key growth drivers.

Aircall has expanded...

Job overview

Employment type

Full Time

Experience level

Senior

Work type

Hybrid

Department

Engineering

Posted

on Mar 26, 2026

About

Job Link

jobs.lever.co

Financials

Type

private

Annual Revenue

Market Cap

Amount Raised

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