Senior Fullstack Engineer at Capi | Paris

Join Aircall, a revolutionary unicorn in the realm of AI-driven customer communication solutions, utilized by over 22,000 enterprises globally to enhance revenue, expedite issue resolution, and scale customer-facing teams. We are transforming customer interactions by unifying voice, SMS, WhatsApp, and AI into a singular, efficient workspace.Our growth stems from a straightforward philosophy: empower teams to work smarter, not harder. Our AI Voice Agent automates routine calls, AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time support, enabling teams to excel. The outcome is enhanced revenue, quicker resolutions, and teams that grow confidently.Headquartered in Paris, with a robust North American presence in Seattle, Aircall has teams located throughout Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product has garnered immense customer appreciation, and our business is rapidly scaling, bolstered by top-tier investors and driven by swift AI advancements across various product lines.At Aircall, you will be part of a dynamic and ambitious organization. We prioritize product innovation, execution, and making a tangible impact through rapid decision-making and genuine growth.Our Work Culture at Aircall: We are dedicated to our customers, guided by data, and focused on achieving significant results. We value ownership, continuous improvement, and thoughtful speed. If you excel in a collaborative, fast-paced environment where trust and impact are paramount, you will thrive here.We seek a dedicated and enthusiastic Senior Software Engineer to become a vital part of our expanding Communication Platform department, specifically within the Number Management team. You will take charge of designing, developing, deploying, and maintaining business-critical features that bring significant value to our customers.Your daily responsibilities will include advocating for best practices, mentoring team members, and enhancing engineering standards across the organization.Our commitment to quality, excellence, and agility drives our delivery processes, and your role will be pivotal in elevating these standards.You will be working primarily with TypeScript and Ruby, ensuring that our solutions meet the highest standards.

Join Aircall, a groundbreaking AI-driven customer communications platform utilized by over 22,000 businesses globally, enhancing revenue, expediting issue resolution, and empowering customer-facing teams. We are transforming customer interactions by seamlessly integrating voice, SMS, WhatsApp, and AI into a cohesive workspace.Our growth is fueled by a core philosophy: enable teams to work smarter, not harder. With innovations like Aircall's AI Voice Agent automating routine calls, AI Assist simplifying post-call tasks, and AI Assist Pro providing real-time support, our solutions enhance productivity leading to increased revenue and swift resolutions.Headquartered in Paris, we also boast a robust North American presence in Seattle, along with teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product has garnered a loyal customer base, and we are rapidly scaling with the backing of premier investors and a commitment to continuous AI innovation across our offerings.At Aircall, you will be part of a dynamic organization. We are ambitious, product-oriented, and execution-driven, emphasizing impactful work, swift decision-making, and genuine growth.Our Work Culture at Aircall: We are dedicated to our customers, driven by data, and focused on delivering impactful results. We value ownership, continuous learning, and thoughtful speed. If you excel in a collaborative, fast-paced environment where trust and impact are paramount, you'll thrive here.We are seeking a passionate and engaged Senior Software Engineer to enhance our expanding engineering department and contribute to our teams.As a Senior Software Engineer, you will lead the design, development, deployment, and operation of crucial features that deliver value to our customers. Your responsibilities will include ensuring operational excellence, monitoring key metrics, enhancing observability, promoting best practices, and mentoring team members across the Engineering division.Driven by quality, excellence, and agility, you will play a pivotal role in elevating our delivery processes. Utilizing NodeJS and Typescript within a robust back-end framework on AWS, you will tailor solutions to meet varied requirements.

Join Aircall, a groundbreaking unicorn in the realm of AI-driven customer communication platforms, utilized by over 22,000 companies globally. Our mission is to transform customer interactions by integrating voice, SMS, WhatsApp, and AI into a singular, efficient workspace.Our progress stems from a core belief: empower teams to operate smarter, not harder. With innovations like Aircall’s AI Voice Agent automating routine calls, AI Assist optimizing post-call processes, and AI Assist Pro providing real-time support, we enhance productivity, drive revenue, and enable teams to scale confidently.Headquartered in Paris, our European hub, we also boast a robust North American presence in Seattle, complemented by teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, our business is rapidly expanding, and we are backed by leading investors, driving swift AI advancements across various product lines.Our Work Culture: We prioritize customer satisfaction, leverage data-driven insights, and aim for impactful results. We value ownership, continuous learning, and deliberate speed. If you thrive in a collaborative, dynamic environment where trust and impact are paramount, you will fit right in.We are seeking a dedicated and enthusiastic Senior Software Engineer to enhance our Workspace team, with a primary focus on Frontend Architecture.In this role, you will be pivotal in transforming Aircall's frontend architecture into a robust platform. Our existing monorepo contains approximately 40 packages and various applications, and as we expand, it is crucial to facilitate parallel contributions from diverse feature teams without generating bottlenecks or architectural conflicts. Your mission is to design a seamless, secure, and high-performing architecture that fosters collaboration.You will serve as a catalyst for the entire engineering organization, establishing the standards for how frontend code is authored, shared, and deployed at Aircall.

Join Aircall, a leading AI-enhanced customer communications platform, trusted by over 22,000 companies globally to boost revenue, expedite issue resolution, and expand customer-facing teams. We are revolutionizing customer communications by seamlessly integrating voice, SMS, WhatsApp, and AI into one cohesive workspace.Our growth is driven by a straightforward philosophy: empower teams to work smarter, not harder. With our AI Voice Agent automating routine calls, AI Assist streamlining post-call tasks, and AI Assist Pro providing real-time guidance, we enable individuals to perform at their best. The outcome? Increased revenue, quicker resolutions, and scalable teams operating with confidence.Headquartered in Paris, with a robust North American presence in Seattle and teams across various cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City, Aircall has developed a product that delights customers and a rapidly scaling business, bolstered by exceptional investors and driven by swift AI advancements across multiple product lines.At Aircall, you will be part of a dynamic, ambitious, and product-oriented company where execution matters. We make impactful decisions quickly and foster genuine growth.Our Work Culture: We prioritize customer satisfaction, leverage data for informed decisions, and aim for substantial outcomes. We value ownership, continuous learning, and thoughtful acceleration. If you excel in a collaborative, fast-paced environment where trust and impact are paramount, you will thrive here.We are seeking an enthusiastic and dedicated Frontend Engineer to join our expanding Engineering Team, specifically within our Workspace team.In this role, you will take charge of the design, development, and deployment of Aircall’s flagship products: Aircall Workspace and Aircall Dashboard. These 100% frontend products are the primary interface for our customers, where performance and user experience are critical.Our delivery processes are driven by quality, excellence, and agility. You will contribute to maintaining these high standards by writing robust, maintainable code and participating in our continuous improvement initiatives.Leveraging React and TypeScript, we create valuable and resilient services that are fully integrated with our customers' business processes.

Join Aircall, a trailblazing AI-driven customer communications platform that empowers over 22,000 companies globally to enhance revenue, expedite issue resolution, and scale their customer-facing teams. We are revolutionizing customer engagement by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our success is rooted in a straightforward philosophy: assist teams in working smarter, not harder. With innovations like Aircall’s AI Voice Agent for automating routine calls, AI Assist for streamlining post-call tasks, and AI Assist Pro for real-time support, we enable teams to deliver their best performance. This leads to increased revenue, quicker resolutions, and a confident scaling of operations.Headquartered in Paris, our European hub, Aircall also boasts a significant North American presence in Seattle, alongside teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. With a product that customers adore and rapid growth backed by esteemed investors, we are at the forefront of AI innovation across diverse product lines.At Aircall, you'll become part of a dynamic organization. We are ambitious, product-focused, and driven by execution, leading to visible impacts, swift decision-making, and genuine career growth.Our Work Culture: We are customer-centric, data-informed, and committed to achieving significant outcomes. We value ownership, continuous learning, and thoughtful agility. If you thrive in a collaborative, fast-paced environment where trust and impact are prioritized, you will feel at home here.As a Software Engineer, you will play a vital role in designing, developing, deploying, and managing business-critical features that enhance customer value. Your daily responsibilities will include ensuring operational excellence, monitoring metrics, fostering observability, and adhering to industry best practices.Driven by quality, excellence, and agility, you will contribute to the continuous improvement of our delivery processes. Utilizing NodeJS and Typescript for our back-end stack, tailored to meet specific needs, and always hosted on AWS, we develop resilient services that integrate seamlessly with our customers’ essential tools (CRM, Helpdesk, E-Commerce, etc.).

Join aircall, a pioneering unicorn in the realm of AI-driven customer communication platforms, utilized by over 22,000 companies globally to enhance revenue, expedite issue resolution, and effectively scale customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is fueled by a straightforward principle: empower teams to work smarter, not harder. Our innovative AI Voice Agent automates routine calls, AI Assist optimizes post-call tasks, and AI Assist Pro provides real-time guidance, enabling individuals to perform at their best. This results in increased revenue, quicker resolutions, and teams that expand confidently.Based in Paris, our European headquarters, we have a robust North American presence in Seattle and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and our business is rapidly expanding, supported by top-tier investors and driven by swift AI innovations across various product lines.Our Work Culture: At aircall, we prioritize customer satisfaction, data-driven decision-making, and delivering significant outcomes. We value ownership, continuous learning, and thoughtful speed. If you excel in a collaborative, dynamic setting where trust and impact are paramount, you will thrive here.We are in search of a dedicated and enthusiastic Senior AI Software Engineer to join our expanding engineering team.In this role, you will oversee the design, development, deployment, and operation of AI-driven features that enhance customer value. Your daily responsibilities will encompass operational excellence, metrics, observability, best practices, and mentoring within your team and across the engineering department.We are committed to quality, excellence, and agility in our delivery processes, and you will play a key role in elevating these standards. Utilizing NodeJS and TypeScript back-end technologies, suitable for each requirement, and always hosted on AWS, we create valuable and resilient services built on voice technology that seamlessly integrate with our customers' essential business tools (CRM, Helpdesk, E-Commerce, etc.).

Are you a detail-oriented financial professional with a passion for accuracy and efficiency? Join our dynamic finance team at Aircall as a Senior Accountant specializing in Accounts Payable. In this role, you will be instrumental in managing our accounts payable processes, ensuring timely and accurate payment of invoices, and maintaining strong vendor relationships.Your expertise will help us streamline operations, enhance reporting accuracy, and support our rapid growth. If you thrive in a fast-paced environment and are looking for an opportunity to make a significant impact, we encourage you to apply!

Join Aircall as a Sales Development Representative, where you will be a vital part of our dynamic sales team. In this role, you will engage with potential clients, showcase our innovative communication solutions, and contribute to the growth of our customer base. You will utilize your skills to generate leads, qualify prospects, and set appointments for our sales executives. Your enthusiasm for technology and excellent communication skills will help drive our mission to revolutionize customer communication.

Join Aircall, a leading AI-driven customer communications platform trusted by over 22,000 businesses globally. Our innovative solution integrates voice, SMS, WhatsApp, and AI to redefine customer interactions.We believe in empowering teams to work efficiently. Our cutting-edge AI Voice Agent automates routine calls, while AI Assist enhances post-call processes and AI Assist Pro offers real-time insights, fostering increased revenue and swift resolutions.With our headquarters in Paris and significant presence in North America, we are rapidly expanding, backed by top-tier investors and a commitment to continuous AI innovation across our product lines.At Aircall, you will be part of a dynamic team that values ambition, product innovation, and impactful execution, fostering an environment of quick decision-making and genuine growth.Our Work Culture: We are dedicated to customer success, data-driven insights, and achieving meaningful results. We prioritize ownership, constant learning, and agility. If you excel in a fast-paced, collaborative setting where trust and impact are paramount, you will thrive here.We are on the lookout for a passionate Account Executive to join our Paris office, focusing on the French market.In this role, you will engage with qualified prospects, conduct product demonstrations, offer technical support, manage proof of concept processes, and negotiate contracts. This is a high-energy position tailored for ambitious, intelligent sales professionals.

Join Aircall, a groundbreaking AI-driven customer communications platform, trusted by over 22,000 companies globally. Our mission is to transform customer interactions by seamlessly integrating voice, SMS, WhatsApp, and AI into a single, innovative workspace.At Aircall, we believe in empowering teams to work smarter, not harder. Our AI Voice Agent automates common calls, while AI Assist optimizes post-call tasks, and AI Assist Pro offers real-time guidance, enabling teams to enhance productivity and achieve greater revenue and quicker resolutions.Our headquarters are located in Paris, with significant operations in North America based in Seattle, and additional teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Supported by top-tier investors and fueled by rapid advancements in AI across our product lines, we are swiftly scaling our business and have developed a product that customers adore.At Aircall, you will become part of a dynamic company that is ambitious, product-focused, and results-driven, characterized by fast decision-making and clear impact.Our Work Culture: We prioritize customer satisfaction, data-driven decisions, and meaningful outcomes. Valuing ownership, continuous learning, and thoughtful responsiveness, we foster a collaborative, fast-paced environment where trust and impact thrive.Role Overview:Customer Success is integral to Aircall’s identity. We seek a tech-savvy intern with exceptional relationship-building skills to assist our expanding client base in achieving their business goals through Aircall’s solutions.This is a 6-month internship opportunity.

Join Aircall, a leading AI-driven customer communications platform, where over 22,000 businesses globally enhance their revenue, streamline issue resolution, and empower customer-facing teams. We're transforming customer interaction by merging voice, SMS, WhatsApp, and AI into a single, efficient workspace.Our growth stems from a straightforward principle: assisting teams to work smarter, not harder. With innovations like our AI Voice Agent automating routine calls, AI Assist optimizing post-call tasks, and AI Assist Pro providing real-time support, we enable our teams to perform at their best, achieving increased revenue and quicker resolutions.Headquartered in Paris, with a robust presence in North America centered in Seattle, and teams in cities including Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City, Aircall is on a rapid growth trajectory. Our product is beloved by customers and is bolstered by renowned investors and swift advancements in AI across our offerings.Our Work Culture: At Aircall, we are passionate about our customers, driven by data, and dedicated to achieving impactful results. We cherish ownership, continuous learning, and agile execution. If you thrive in a collaborative, dynamic environment where trust and results matter, you will find your place here.We are seeking a proactive and highly skilled leader to join our extensive Support organization as the head of the global Number Operations team. This team is dedicated to providing exceptional support for all number-related customer inquiries, including purchasing, porting, and compliance, serving our growing customer base of over 22,000. The NumOps team collaborates closely with Carrier Relations, Product & Engineering, Legal, and customer-facing teams like Success and Sales.Reporting to the VP of Customer Support & Experience and being an integral part of the Support Leadership team, you will leverage your extensive Number Operations knowledge to shape Aircall's number management strategy. You will ensure that the challenges, constraints, risks, and opportunities related to NumOps are consistently identified, understood, and addressed.

Aircall, a leading unicorn in customer communication solutions, harnesses the power of AI to transform how over 22,000 businesses worldwide connect with their customers. By integrating voice, SMS, WhatsApp, and AI into a unified workspace, we are setting new standards for customer engagement.Our innovative approach is driven by a fundamental belief: empower teams to work smarter, not harder. With features like the AI Voice Agent automating routine calls, AI Assist optimizing post-call tasks, and AI Assist Pro providing real-time support, we help organizations achieve increased revenue, quicker resolutions, and the ability to scale with confidence.Headquartered in the vibrant city of Paris, our European headquarters, we also maintain a strong presence in North America centered in Seattle, alongside teams in Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Backed by top-tier investors, we are rapidly innovating across multiple product lines to create offerings that our customers love and to grow our business sustainably.Joining Aircall means becoming part of a dynamic company that prioritizes ambition, product excellence, and execution-focused strategies, where your contributions will have clear visibility and impact.Our Work Culture: We are deeply committed to our customers, driven by data, and focused on achieving significant results. We value ownership, continuous learning, and the importance of thoughtful speed. If you thrive in a collaborative and fast-paced environment where trust and impact are paramount, you will find your place at Aircall.Our legal team located in Paris is seeking an intern in Social Law for a duration of 6 months.You will assist in the implementation of Aircall's business, legal, and HR strategies in France and internationally (EMEA + APAC). Specifically, focusing on France, you will actively participate in managing individual and collective labor relations. Under the guidance of your manager, you will be closely involved in handling various cases.

Join Aircall, a cutting-edge unicorn and AI-driven customer communications platform, serving over 22,000 businesses globally. Our mission is to revolutionize customer interactions by integrating voice, SMS, WhatsApp, and AI into one cohesive workspace.Our growth is powered by a core principle: enable teams to work smarter, not harder. With features like our AI Voice Agent automating routine calls and AI Assist Pro providing real-time guidance, we empower teams to enhance revenue, expedite resolutions, and scale operations with confidence.Headquartered in Paris, we have a robust presence across North America with our HQ in Seattle and teams in major cities like Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Backed by notable investors, we are rapidly innovating our AI offerings across various product lines.Our Work Culture: At Aircall, we are driven by customer obsession, data insights, and a commitment to delivering impactful results. We prioritize ownership, continuous learning, and swift execution. If you excel in a collaborative, fast-paced setting where trust and results are paramount, you’ll thrive here.With nearly 4,000 clients in the Iberia region and a dedicated team of over 30 members, we aim to accelerate our growth in the Spanish and Portuguese markets.As a Sales Intern, you will gain practical experience in the dynamic realm of B2B software sales. This internship offers invaluable exposure to the sales cycle, customer relationship management, and market analysis within the SaaS landscape, presenting a fantastic opportunity to hone your consultative sales skills and advance your career in sales.This position is located in our Paris office and will commence in June or July 2026, lasting for 6 months.

Join Aircall, a trailblazer in AI-driven customer communication, currently empowering over 22,000 businesses globally to enhance revenue, expedite issue resolution, and expand customer-facing teams. We are transforming customer interactions by seamlessly integrating voice, SMS, WhatsApp, and AI into one unified platform.Our success is rooted in a clear vision: enable teams to work smarter, not harder. With our innovative AI Voice Agent, we automate routine calls; AI Assist accelerates post-call tasks; and AI Assist Pro provides real-time insights, enabling individuals to perform at their peak. The outcome is increased revenue, quicker resolutions, and scalable team dynamics.Headquartered in Paris, our European hub, we maintain a robust North American presence in Seattle and have teams scattered across cities such as Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product has garnered immense customer affection, and we are rapidly scaling with the backing of premier investors and continuous AI advancements across various product lines.At Aircall, you will become part of a dynamic organization. We are ambitious, product-oriented, and focused on execution with a visible impact, rapid decision-making, and genuine growth.Our Work Culture: We are deeply committed to our customers, driven by data, and focused on achieving significant outcomes. We cherish ownership, continuous learning, and thoughtful agility. If you thrive in a collaborative, fast-paced setting where trust and impact are paramount, you will find your place with us.We are in search of a Managing Director to spearhead and oversee the comprehensive Go-To-Market (GTM) strategy for one of our most pivotal markets.This role encompasses end-to-end GTM leadership with responsibilities spanning pipeline generation, sales, and account management, set against a backdrop of rapid growth and a critical juncture in Aircall’s development.We are looking for a hands-on, results-driven leader who melds strategic vision with operational precision, cultivates high-performing teams, and consistently transforms ambition into tangible results—while ensuring a human-centric, enjoyable, and swift workplace.

Join Verso, where we are revolutionizing consumer insights with our Consumer Intelligence OS. Our innovative AI-driven platform transforms traditional qualitative research methods by continuously analyzing consumer conversations at scale. Rather than relying on one-off studies, our clients gain a structured and ongoing understanding of their customers.Our mission is to embed consumer insights into every product and marketing decision, creating a real-time, always-on system. We are currently starting with AI-moderated interviews, but our long-term vision is to develop a comprehensive system for consumer understanding powered by dynamic workflows.Backed by Hexa (eFounders), we are building on the success of companies like Aircall, Front, Spendesk, Yousign, and many more.Our founding team brings deep expertise in strategy, technology, and entrepreneurship:Lydia - CEO: HEC graduate with 7 years at BCG (Principal), expert in strategy and consumer goods.Camille - CTO: Dual degree from X/HEC, former lead at CO2 AI, specialized in AI and scalable product development.

Join our dynamic team at Aircall as a VoIP Engineer, where you will play a crucial role in designing and implementing voice communication systems that enhance our customer experience. As a part of our innovative team, you will work on cutting-edge technologies to ensure seamless communication for our clients.

Join us at Verso, a pioneering startup supported by Hexa, as a Founding Fullstack Engineer. In this role, you will play a crucial part in the development of our innovative platform. You will have the opportunity to work on both the front-end and back-end of our applications, contributing to the overall architecture and enhancing user experience.We are looking for passionate engineers who thrive in a startup environment, are eager to take on new challenges, and are ready to shape the future of our company.

Join Theodo: Pioneers in Digital SolutionsSince 2009, Theodo has been at the forefront of innovation, helping businesses design, develop, and deploy ingenious digital products by leveraging the best technology and Lean methodologies.With exceptional growth over the past 15 years, Theodo now boasts a talented team of over 700 professionals, primarily composed of passionate Software Engineers dedicated to continuous improvement. Our growth has led to specialized entities within the group focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Heathtech, Consumer Products). By 2025, Theodo aims to generate 100M€ in revenue.At Theodo FinTech, our mission is to enhance the usefulness of finance for individuals, businesses, and society. We partner with major corporations, ScaleUps, and StartUps within the financial services sector to design, develop, and maintain accessible, sustainable, and socially beneficial digital products.As experts in financial services technology, Theodo FinTech delivers exceptional digital products at lightning speed with zero bugs and high security. Our team excels at integrating APIs from all B2B fintech platforms to create innovative embedded finance solutions.Your Responsibilities:As a Senior Full-Stack Software Engineer at Theodo FinTech, your role will involve:- Rapidly coding without bugs, utilizing coding assistants (Copilot, Cursor, Windsurf).- Designing features by contributing product ideas and identifying optimal technical strategies, while adhering to our delivery practices.

Join Theodo and Be Part of Our Success Story!Since 2009, Theodo has been empowering innovative companies in the design, development, and deployment of ingenious digital products, leveraging the best technology and Lean methodologies.Our distinctive approach is founded on three key principles:- We have cultivated recognized expertise in essential product design and development technologies;- Regardless of the project's phase, creating value for our clients is our top priority in every decision;- We recruit the finest digital talents and foster their ingenuity through Lean practices.Theodo has experienced remarkable growth over the past 15 years: our teams comprise over 700 Theodoers, primarily Software Engineers passionate about technology and continuous improvement. With this growth, the group has organized into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) or by industry (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to generate €100M in revenue.Your Team:You will join a community of over 120 tech enthusiasts at Theodo: software engineers, tech leads, engineering managers, and architects, where you can share ideas, learn, and grow every day. At Theodo, our tech teams work in project groups tailored to the unique needs of each client. You will be part of a small team of Theodoers (4 to 5 members), including Software Engineers, a Tech Lead, and a Product Manager. Together, you will collaborate closely with the client through regular communications to share progress, deepen the understanding of their challenges, and evolve the product to meet user needs effectively. Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will involve designing and developing useful, high-performing, and sustainable digital products to address the challenges faced by our clients and their users.