Senior Software Engineer w Hiszpania, Polska

About Aircall

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.

How we work

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.

The Role

As a Senior Software Engineer, you will be responsible for the design, development, deployment, and operation of business-critical features that add customer value. Operational excellence, metrics, observability and best practices, evangelization, and mentoring in your team and across the whole of Engineering will be part of your day to day job.

Quality, excellence, and agility drive our delivery processes and you will help us level these up. Using NodeJS and Typescript back-end stacks, appropriate for each requirement, but always hosted on AWS, we build added value and resilient services on top of voice and fully integrate with our customers’ business critical tools (CRM, Helpdesk, E-Commerce, …).

Your mission @ Aircall:

• Create, design, develop, test, and monitor your code in production autonomously and reliably
• Collaborate with product managers, designers and other engineers to offer pragmatic solutions to real world problems and implement them end to end
• Work with your team to design high quality, secure, and scalable solutions and be accountable for their execution
• Obtain a good understanding of the business to provide relevant solutions to users and clients
• Mentor and promote tech growth within the teams
• Stay up-to-date on new technologies and architectures, demonstrate good judgment in their potential applications

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.

Requirements:

• You have at least 7+ experience in back-end development, using TypeScript & NodeJS/Python/Ruby/Rails or other languages, with a focus on delivering for security, scalability, availability, and performance.
• You have worked extensively with AWS in a production environment, preferably for high volume / high availability services and understand how to design for, deploy on and get the best out of, the environment and services provided by Amazon).
• Experience working on frontend applications is a big plus, preferably with React.
• Value code simplicity, quality, performance and maintainability.
• Can design pragmatic & simple architectures to solve problems at scale.
• You possess effective and proactive communication skills, and can collaborate with different profiles and roles.

Tech Stack:

• Typescript/Node.js, Python, REST API/GraphQL APIs, Ruby/Rails, React, AWS/Serverless or EKS, PostgreSQL, DynamoDB, OpenSearch, Redis