Senior Software Engineer

Aircall is a unicorn AI-powered communications platform transforming how teams win with customers. We bring voice, SMS, WhatsApp, and 250+ integrations together on one seamless workspace
- so every customer conversation drives revenue, resolves issues faster, and builds trust. As a Senior Full-Stack Engineer on our Growth team, you will focus on Onboarding & Trial optimization. You will design, build, and iterate on the key product flows that drive user activation, feature adoption, and trial conversions.
Unlike traditional full-stack roles that lean heavily toward backend systems, this position requires deep Frontend expertise alongside solid Backend capabilities. You will build user-facing product experiences, run rapid experiments, and shape the initial user journey in Aircall.
Quality, excellence, and agility drive our delivery processes and you will help us level these up. Using React, NodeJS and Typescript, always hosted on AWS, we build added value and resilient experiences on top of voice and fully integrate with our customers' business critical tools (CRM, Helpdesk, E-Commerce, ...). Your Mission @ AircallDrive Acquisition & Onboarding: design, implement, and optimize activation funnels, trial experiences, and onboarding flowsRapid Experimentation: build, ship, and evaluate A/B tests and product feature variations using product analytics to measure impactEnd-to-End Ownership: ship high-quality code across the entire stack, from seamless, responsive frontend interfaces to scalable backend logicCross-Functional Collaboration: partner closely with Product Managers, Designers, and Data Analysts to convert user insights into frictionless product experiencesCreate, design, develop, test, and monitor your code in production autonomously and reliablyMentor and promote tech growth within the teamsA Little About YouYou have demonstrated professional experience across both frontend and backend development, with true full-stack expertise. You have strong frontend mastery: expertise in building complex, modern UI components, reactive interfaces, and web applications. This role involves substantial frontend work. You have a strong background in the modern JS/TS ecosystem: Node.js, TypeScript, JavaScript, modern frontend frameworks (e.g., React), and API integration. You have a product & data mindset: familiarity with product analytics tools, conversion funnels, and data-informed product decision-making. Candidates whose primary background is strictly Ruby, Python, or purely backend frameworks will not fit this specific need. Nice to have: prior experience building and scaling software at product-led SaaS companies (as opposed to client consulting or agency backgrounds). You value code simplicity, quality, performance and maintainability. jsReactREST API / GraphQL APIsAWS / Serverless or EKSPostgreSQLDynamoDBRedisWhy Join UsKey moment to join Aircall in terms of growth and opportunitiesOur people matter, work-life balance is important at AircallFast-learning environment, entrepreneurial and strong team spirit45+ Nationalities: cosmopolite & multi-cultural mindsetCompetitive salary package & benefitsDE&I StatementAt Aircall, we believe diversity, equity and inclusion – irrespective of origins, identity, background and orientations – are core to our journey. 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. Candidate Privacy & Data ProcessingWant to know more about candidate privacy? If you would like more information about how your data is processed, please contact us. #