Fullstack Engineer - Go / React at Qonto | Paris

About MorphoMorpho is at the forefront of Decentralized Finance (DeFi), offering an innovative lending protocol that recently raised $50 million from renowned investors such as Ribbit Capital, a16z crypto, Coinbase Ventures, and others. Our goal is to create an open lending network that provides individuals worldwide access to the most favorable terms available. With over $10 billion in deposits on our network, Morpho is setting a new benchmark in DeFi lending. We are expanding our team to solidify our position as a key player not only in DeFi but also in the emerging internet-native financial ecosystem.Our MissionAt Morpho, we aim to empower human ambition by providing open access to capital. We recognize that ambition knows no boundaries, yet access to capital can be limited. The current financial landscape is often closed and disjointed, leading to missed opportunities and unequal access. We strive to ensure that capital flows efficiently to where it is needed most, enabling anyone, anywhere to achieve the best possible terms.LocationThis role can be based in Paris or remotely (from -5h GMT to +2h GMT) to facilitate collaboration with the team.How We WorkWe tackle complex challenges in a rapidly evolving market without predefined guidelines; adapting to uncertainty is part of our daily work. We encourage questioning and transparency, ensuring that decisions are well-founded. Our culture promotes high standards paired with strong support: we assist one another in overcoming obstacles and value open communication with humility. For more on our values, visit morpho.org/jobs.RoleAs a Staff Fullstack Engineer, your mission will be to design, build, and scale Morpho's full-stack systems. You'll enable teams to deliver products swiftly, securely, and reliably across platforms managing billions in Total Value Locked (TVL). Your work will transform intricate requirements into streamlined, high-performance software that enhances product velocity and provides genuine user value.ResponsibilitiesLead the architecture and end-to-end delivery of web applications, APIs, and data indexers, ensuring user impact is achieved promptly and securely.Devise a scalable API and SDK strategy with comprehensive versioning and documentation, empowering numerous external developers to integrate with Morpho.Construct high-performance data pipelines to manage on-chain events effectively.

Join our innovative team at jobsforhumanity as a Mid/Senior Fullstack Engineer. In this role, you will be responsible for developing and maintaining robust web applications that deliver exceptional user experiences. Your expertise in both front-end and back-end technologies will play a crucial role in the success of our projects.

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 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.

Dataiku is your go-to platform for AI success, providing an enterprise orchestration layer for building, deploying, and managing AI applications. In a unified environment, teams can design and operate analytics, machine learning, and AI agents while ensuring the transparency, collaboration, and control crucial for enterprises. Positioned above data platforms, cloud infrastructure, and AI services, Dataiku integrates the complete enterprise AI stack, enabling organizations to implement AI seamlessly across various vendor environments with centralized governance.The leading global companies trust Dataiku to operationalize AI, transforming it into a vital business performance driver that delivers measurable value. Discover more through the Dataiku blog, LinkedIn, X, and YouTube. Why Join Engineering at Dataiku?Dataiku’s platform, whether deployed on-premise, in the cloud, or as a SaaS solution, connects a variety of data science technologies, showcasing our dedication to quality and innovation. We incorporate the best data and AI technologies, selecting tools that genuinely enhance our product. From the latest large language models (LLMs) to our commitment to open-source communities, you will engage with an exciting array of technologies and contribute to the collective knowledge of global tech innovators. Learn more about working in Engineering at Dataiku here.In the Business Solutions team, we are developing applications that harness Dataiku’s data and AI capabilities, focusing on essential enterprise use cases that require user-centric interfaces and workflows. We cater to sectors such as Manufacturing, Life Sciences, and Finance, enhancing key processes within their business and operational models. In essence, our work embodies the concept of 'everyday AI'!Your ImpactCreate Innovative AI-Driven Applications: Design, develop, and deploy AI-powered applications that address complex business challenges.

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.

About MistralAt Mistral AI, we harness the transformative power of artificial intelligence to streamline tasks, optimize time management, and foster creativity and learning. Our innovative technology is engineered for seamless integration into everyday work environments.We democratize AI through our high-performance, optimized, open-source models, products, and solutions. Our robust AI platform caters to enterprise demands, whether deployed on-premises or in cloud infrastructures. Among our offerings is 'le Chat', an AI assistant designed for both personal and professional use.We are a dynamic and collaborative team, deeply passionate about AI’s potential to revolutionize society. Our diverse workforce excels in competitive settings, dedicated to driving innovation. With teams spread across France, the USA, the UK, Germany, and Singapore, we thrive on creativity, humility, and team collaboration.Join us in redefining the future of AI. Together, we can make a significant impact. Discover more about our culture at https://mistral.ai/careers.About The JobMistral AI is on the lookout for an Applied AI Engineer to champion the adoption of our products, partnering with clients to tackle intricate technical challenges.The Applied AI Engineer - Software Engineer will play a crucial role within our Applied AI Engineering team, focused on ensuring the successful implementation of Mistral AI products. This role involves close collaboration with clients from pre-sales to post-implementation, ensuring our solutions not only meet but exceed client expectations.What You Will Do• Collaborate intensively with researchers, AI engineers, and product engineers on sophisticated customer projects, embedding advanced AI models into client software solutions.• Design, develop, and manage scalable full-stack applications, facilitating seamless interaction between front-end and back-end components.• Work alongside customers to craft complex use cases, providing expert guidance for optimal integration with back-end and front-end interfaces.• Partner with our product and science teams to continually enhance our product offerings and model capabilities, driven by customer feedback.About You• You possess fluency in English.• You hold a degree in Computer Science, Software Engineering, or a related discipline.• You have a minimum of 2 years experience as a technical contributor in advanced technology environments.• You demonstrate strong coding proficiency in Python and TypeScript.• Your passion for AI and innovation is evident in your work ethic and collaborative spirit.

Join Our Team as a Senior Fullstack EngineerAt Capi, we empower businesses in emerging markets to efficiently pay their international suppliers in a straightforward, rapid, and equitable manner.With over $18 million in backing from esteemed investors such as Creandum, Y Combinator, General Catalyst, and notable angel investors from Revolut, Checkout, Stripe, and Remitly, we are committed to constructing the financial infrastructure that emerging markets truly deserve.By streamlining global trade, we enable local businesses to flourish, create more jobs, and drive prosperity within their communities.Our mission is to enhance GDP in emerging markets by making the global financial system more equitable and accessible. We address the challenges of global trade, simplifying the payment process for importers dealing with international suppliers. Our platform is designed to facilitate rapid business expansion, job creation, and serve as a catalyst for the prosperity of their nations.Our diverse team consists of approximately 80 individuals from 10 countries; we are a driven and ambitious group dedicated to making a significant impact in the world. We are excited to welcome more passionate individuals to our team!Explore Capi’s mission & values.Role OverviewYou will become part of a small, high-performing team of engineers and product leaders, influencing the scaling of our platform and increasing our impact.From day one, you will collaborate closely with the founding team based in London and Paris to shape our product vision and the various components of our technical architecture. As we expand our products and strengthen our presence in emerging markets, you will play a pivotal role in developing technology that addresses customer challenges.To succeed, you should possess empathy and curiosity to uncover the root of issues, along with the creativity to devise solutions that balance impact, effort, and user satisfaction.

Join Outsight, a leader in spatial intelligence, where our innovative software solutions leverage 3D LiDAR data to monitor and enhance the movement of people and vehicles. Our technology empowers operators at transportation hubs—including airports, train stations, sports venues, and industrial sites—to access precise, anonymous spatial data, aimed at improving operational efficiency, safety, and user experience. Our diverse team of scientists and engineers collaborates across international locations, including Paris, San Francisco, Sophia-Antipolis, and Hong Kong, with a commercial office in Spain to support our global initiatives. Discover more about our mission and solutions at Insights about Outsight. Our Passenger Flow Traffic Monitoring solution is utilized by premier airports and train stations globally, known for their operational excellence and exceptional passenger experiences. We also serve various sectors, including tourism, retail, and sports. Additionally, our Car Traffic Remote Monitoring solution is trusted by top-tier clients, including BMW. Position Overview We are seeking a Senior FullStack Engineer to join our Platform Engineering team. Reporting to the Director of Engineering, you will play a pivotal role in developing our Shift cloud platform product, employing a multi-tenant, multi-region strategy. Your expertise will be vital in building foundational services that govern tenant lifecycle, identity, security, and overall management console web application.

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.

Are you a passionate Fullstack Engineer looking to make an impact? Join Doctrine as a Senior Fullstack Engineer in our dynamic Squad Scribe, where you will lead innovative projects and collaborate with a talented team. You will work on designing, developing, and implementing user-friendly applications that enhance our client's experience.

Our Mission At Doctrine, we are dedicated to a significant democratic challenge: making law more accessible. As the leading legal AI platform, we empower lawyers and legal professionals to escape repetitive and time-consuming tasks, allowing them to focus on what truly matters at every stage of their work—whether it's understanding a case, conducting research, or drafting documents. Currently, Doctrine attracts over 1 million visits each month, with dozens of new legal professionals joining us daily. Our ambition extends beyond borders; we aim to establish ourselves as the European leader in legal AI. After successfully launching in France and Italy, we are now expanding into Germany, driven by a strong belief in global thinking with localized implementation. We closely align our efforts with client needs, diligently understanding the nuances of each legal system. And this is just the beginning!Our Values Challenge the status quo. We advocate for bold ideas and intelligent risk-taking.Liberty and responsibility. We promote autonomy, individual impact, and ownership.Knowledge is power. Information is central to Doctrine's mission, and we strive for continuous learning.Release early, release often, and listen to your customers. We believe in the power of iteration and the importance of consistently listening to our market, clients, and their challenges.The RoleWe are on the lookout for a Junior/Confirmed Fullstack Engineer to help us build the premier legal intelligence platform. You will join our 'Foundation' team, focused on managing our infrastructure, software architecture, security, and operational excellence for developers. This squad includes Data Engineers, SRE/DevOps, and Fullstack Engineers.Our web technology stack is built on NodeJS, NestJS, React, and NextJS.For more details about our tech stack, feel free to check our GitHub: https://github.com/DoctrineLegal/#our-tech-stack!

Discover Theodo's Journey and SuccessSince 2009, Theodo has been empowering innovative companies in crafting, developing, and launching ingenious digital products, leveraging cutting-edge technology and a Lean approach.Our distinctive methodology is built upon three core principles:- We have honed acknowledged expertise in key technologies for product design and development;- At every stage of the project, our priority is to create value for our clients;- We recruit the finest digital talents and nurture their ingenuity through a Lean approach.Theodo has experienced remarkable growth over the past 15 years, gathering over 700 passionate Theodoers, primarily Software Engineers dedicated to technology and continuous improvement. As we expand, our group has organized into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo aims to achieve a revenue of €100M.Your Future Team:You will join a community of over 120 Theodo tech professionals: software engineers, tech leads, engineering managers, and architects, where you can exchange, learn, and grow daily.At Theodo, tech teams work on project-based teams, tailored to meet each client's needs. 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, with regular updates to share progress, deepen understanding of their challenges, and evolve the product to align with user needs.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will be to design and develop valuable, high-performance, and sustainable digital products to address the challenges faced by our clients and their users.

Join our dynamic team as a Fullstack Developer in the Squad Maât at Doctrine! You will play a key role in developing innovative software solutions that empower our users and enhance their experience. If you are passionate about coding, problem-solving, and working in a collaborative environment, we want to hear from you.

Join Theodo: A Leader in Digital SolutionsSince 2009, Theodo has been partnering with innovative businesses to design, develop, and deploy cutting-edge digital products, leveraging the best of technology and Lean methodology.With remarkable growth over the past 15 years, Theodo has assembled a vibrant team of over 700 passionate Software Engineers dedicated to continuous improvement. Our organization has evolved into specialized units focused on technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo aims to achieve a revenue of €100M.Theodo Apps, with over 130 successful projects, specializes in the development of multi-platform applications (mobile, web, and TV). We assist our clients in the design, development, and deployment of applications that enhance user experiences.In just 10 years, Theodo Apps has grown from 2 to 120 employees, generating €24 million in revenue by 2024!We collaborate with a diverse range of clients, including entrepreneurs, innovative SMEs, and large corporations like TF1+, Carrefour, Urgo, and Compagnies des Alpes.Your Team:You will become part of a tech community of over 50 Theodoers, including software engineers, tech leads, engineering managers, and architects, providing opportunities for daily learning and growth.At Theodo, our tech teams are organized based on client needs. You will work in a small team (4 to 5 members) alongside Software Engineers, a Tech Lead, and a Product Manager. Together, you will closely collaborate with the client, regularly sharing progress, deepening problem understanding, and evolving the product to meet user needs effectively.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo Apps, you will...

Your Impact At Doctolib, we are rapidly expanding our team and currently seeking talented Fullstack Software Engineers to join us in Paris. We welcome engineers at various stages of their careers, whether you are just starting out or have years of experience under your belt. There’s a place for you in our innovative Engineering teams! Your mission is to help Doctolib solidify its standing as a premier healthcare technology platform by creating high-quality products that enhance the daily routines of healthcare professionals and patients. You will engage in feature teams that develop solutions with a direct impact on millions across Europe. Joining the tech team at Doctolib means you will be at the forefront of building cutting-edge products and functionalities that improve the lives of care teams and patients alike. What You’ll Build Your responsibilities will encompass, but are not limited to: Collaborating with product managers, designers, and fellow engineers to create features that provide real value to healthcare professionals and patients. Designing and implementing technical solutions that ensure optimal performance, security, and usability across our fullstack applications (React, TypeScript, JVM ecosystem). Contributing to code quality through thorough reviews, testing, and the continuous improvement of our development practices. Sharing your expertise and collaborating across teams to advance Doctolib’s architecture and technical standards. Life at Doctolib Tech Our solutions are built on a single fully cloud-native platform that supports web and mobile application interfaces, multiple languages, and is tailored to meet the requirements of various countries and healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower both patients and health professionals. Learn more about our AI vision here. Interested in understanding more about our tech culture and environment? Visit the Doctolib Tech site. What You’ll Bring Before proceeding, if you feel that this job description resonates with your skill set even if you don’t meet every criterion, we encourage you to apply! You possess fullstack software engineering experience with React and the JVM ecosystem (Java, Kotlin, Spring Boot) - Ruby experience is a bonus. You have a user-first mindset and are dedicated to enhancing the user experience.

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 our dynamic team at believe as a Senior Fullstack Software Engineer, specializing in PHP and React. In this role, you will be responsible for designing, developing, and maintaining innovative software applications that enhance user experiences and drive business success. Your expertise will contribute significantly to our projects, ensuring high-quality software delivery.

Discover Theodo’s Journey and SuccessSince 2009, Theodo has been empowering innovative companies by designing, developing, and deploying ingenious digital products, leveraging cutting-edge technology and Lean methodologies.With remarkable growth over the past 15 years, Theodo has expanded its team to over 700 passionate Theodoers, primarily Software Engineers dedicated to technology and continuous improvement. As we grow, we have structured into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Heathtech, Consumer Products Goods). By 2025, Theodo aims to generate €100M in revenue.At Theodo FinTech, our mission is to make finance more beneficial for individuals, businesses, and society. As the FinTech expert within Theodo, we partner with clients — large enterprises, ScaleUps, and StartUps in the financial services sector — to design, develop, and maintain accessible, sustainable, and valuable digital products for society.As technology experts in financial services, Theodo FinTech delivers exceptional digital products in record time, ensuring zero bugs and high security. We excel at integrating APIs from all B2B FinTech platforms to create embedded finance solutions.Your Team:At Theodo, our tech teams operate in project groups tailored to each client’s needs. You will be part of a close-knit team of Theodoers (4 to 5 members), including Software Engineers, a Tech Lead, and a Product Manager. Together, you will work closely with the client, engaging in regular discussions to share progress, deepen understanding of their challenges, and evolve the product to meet user needs effectively.Your Future Responsibilities:As a Fullstack Software Engineer, you will be responsible for developing innovative solutions, collaborating with clients to refine specifications, and ensuring the delivery of high-quality software.