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Senior Software Engineer
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Paris Office
Engineering – Communications Platform /
Permanent Full Time Employee /
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
The Communications Platform Team is responsible for all technology aspects related to the voice and messaging infrastructure of Aircall products, mainly from user endpoint to our VoIP backends. The team works to deliver high-quality and real-time communications to our users while operating in all areas at carrier-grade expectations (stability, maintainability, scaling, and uptime). Our shared ambition is to provide the best voice and messaging infrastructure for Aircall customers and help other Aircall engineering teams deliver as much value as possible on top of it.
Key responsibilities:- Lead the development of new features and maintain the real-time communications application using the modern stack (TypeScript, React 18/19, and Vite)
- Handle the specific challenges of real-time media, debugging, and resolving issues across all major browsers to ensure optimal quality
- Take hands-on ownership of developing and maintaining cross-platform applications using Electron
- Design and maintain robust CI pipelines (GitLab CI), release workflows, and automated testing to implement continuous delivery best practices in production environments.
- Participate in an on-call rotation to respond to critical system issues.
- You have experience with TypeScript, React ( 18 and 19), and Vite, with a focus on delivering security, scalability, availability, and performance
- You have a solid understanding of WebRTC and SIP protocols fundamentals
- You have experience contributing to architecture and development within a monorepo, ensuring code consistency and shared component efficiency.
- You have demonstrated the ability to handle the specific challenges of real-time media, debugging, and resolving issues across all major browsers to ensure a flawless user experience.
- You have hands-on experience developing and maintaining cross-platform applications using Electron.
- You have experience in implementing and managing real-time data exchange using Websockets.
- You have experience with the software development life cycle, code reviews, GitLab, CI/CD, automated testing, deployment activities, and troubleshooting production issues
- You are familiar with audio processing issues/optimization
- You are familiar with xState or similar
- Modern developer experience with AI-assisted development (Cursor, Claude), fast CI/CD, type-safe workflows
- Fluency in English, both written and spoken
- Autonomous, proactive, and comfortable owning features end-to-end.
- Pragmatic mindset with a willingness to experiment, iterate, and continuously improve systems.
Why join us?
Key moment to join Aircall in terms of growth and opportunities
- Our people matter, work-life balance is important at Aircall
Fast-learning environment, entrepreneurial and strong team spirit
45+ Nationalities: cosmopolite & multi-cultural mindset
Competitive salary package & benefits
DE&I Statement:
At Aircall, we believe diversity, equity and inclusion – irrespective of origins, identity, background and orientations – are core to our journey.
We pride ourselves on promoting active inclusion within our business to foster a strong sense of belonging for all. We're working to create a place filled with diverse people who can enrich and learn from one another. We're committed to ensuring that everyone not only has a seat at the table but is valued and respected at it by providing equal opportunities to develop and thrive.
We will constantly challenge ourselves to make sure that we live up to our ambitions around diversity, equity and inclusion, and keep this conversation open. Above all else, we understand and acknowledge that we have work to do and much to learn.
Want to know more about candidate privacy? Find our Candidate Privacy Notice here.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
