Senior Fullstack Software Engineer - CDI Paris - Theodo Fintech

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…

Join our dynamic team at Altersolutions as a Fullstack Developer specializing in .NET and React. In this role, you will leverage your expertise to build and enhance innovative web applications. Your contributions will be pivotal in delivering high-quality software solutions that meet the needs of our clients.

Rejoignez notre Pôle Transformation Numérique en tant que Développeur Fullstack, où vous ferez partie d'une équipe dynamique d'experts en développement de solutions logicielles, dédiée à l'accompagnement de nos clients.Vous serez intégré(e) au sein d'une équipe dédiée chez un leader du secteur de l'assurance, travaillant en mode squad avec des développeurs, testeurs et un Product Owner.Vos responsabilités incluront :Concevoir, développer et maintenir des applications web performantes et évolutives.Créer des APIs REST sécurisées en .NET/C#.Développer des interfaces utilisateurs modernes et intuitives utilisant ReactJS / TypeScript.Collaborer étroitement avec l’équipe produit et les designers pour transformer les exigences en solutions techniques.Assurer la qualité du code à travers des tests unitaires, des revues de code et des pratiques CI/CD.Participer aux choix techniques et à l’architecture du logiciel.Contribuer à l’amélioration continue et au partage de connaissances au sein de l’équipe.

Join our dynamic team at believe as a Senior Software Engineer. In this pivotal role, you will leverage your expertise in React and Java to design and implement innovative software solutions that enhance our platform and improve user experience.Your contributions will be vital in driving our projects forward and ensuring the effective delivery of high-quality software. We are looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges.

believe is hiring a Senior Software Engineer with a focus on React and Java for its Paris office. This role centers on creating web applications that deliver effective user experiences. Key responsibilities Design and build web applications using React and Java Collaborate with colleagues across different teams to understand requirements and deliver solutions Support ongoing enhancements to software products Location This position is based in Paris.

nexton is looking for a Fullstack Java / React Developer based in Paris. This position centers on developing and refining applications using both Java and React. Collaboration with colleagues from various teams is a key part of the job, with a focus on creating user-friendly interfaces and enhancing the overall user experience. What you will do Design and build applications with Java and React Work alongside cross-functional teams to develop interfaces Offer ideas to improve usability and boost user satisfaction Requirements Experience with backend development in Java and frontend work in React Interest in tackling complex problems with creative solutions Ability to thrive in a collaborative and evolving environment

Join Our Mission: We are dedicated to empowering SMEs to thrive in their business endeavors by providing Europe's premier finance workspace. Our platform integrates top-notch tools such as streamlined invoicing, effective spend management, and pre-accounting features, all backed by our dedicated 24/7 support team, ensuring that our clients navigate their financial responsibilities with ease.About Qonto: Founded in July 2017 by Alexandre and Steve, Qonto has quickly established itself as a trusted partner for over 600,000 customers. With a growing team of over 1,600 Qontoers, we proudly feature in the LinkedIn Top Companies ranking in France!Our Core Values:Customer focus | We prioritize our customers in all our endeavors.Ownership | We take responsibility for our roles and strive to achieve results.Teamwork | We simplify collaboration and support each other.Mastery | We constantly seek to improve and elevate standards.Integrity | We act ethically and with respect towards all individuals.Diversity & Inclusion: At Qonto, we are committed to creating an inclusive environment where everyone can succeed. We evaluate applicants based on their skills and potential, fostering diversity with 55% of our team being international, 44% women, and 20% parents. Join us in cultivating a workplace that values diversity and individuality.Learn about our commitment to a fair hiring process.⭐ Your Role:As a Fullstack Engineer, you will play a pivotal role in developing financial tools that empower over 600,000 SMEs to manage their finances efficiently. Collaborating closely with our Head of Engineering, Yanis, you will focus on creating impactful financial features that simplify processes for SMEs and accountants.‍‍ Responsibilities:• Feature Ownership: Take charge of features from conception to deployment, working closely with Product Managers to define technical specifications and deliver results.• Robust Tool Development: Design and implement scalable solutions for pre-accounting functionalities, ensuring a seamless user experience.

Join our dynamic team at Alten as a Fullstack Java / React Developer (H/F). We are looking for passionate developers who thrive in innovative environments and are eager to work on exciting projects that push the boundaries of technology.

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 us in revolutionizing the shopping experience through AI-powered conversations.At Gorgias, we are pioneering a platform that transforms customer interactions into meaningful relationships. Our vision is to create a unified AI agent that assists, sells, and re-engages customers at every touchpoint in their journey. We believe that Conversational Commerce is the future of eCommerce, and we are at the forefront of this exciting shift.Our mission is to ensure that every brand interaction is personal, seamless, and intelligent. By merging our extensive product knowledge with cutting-edge AI technology, we aim to make the shopping experience feel increasingly intuitive and connected.To achieve this, we are committed to:Quality: Crafting authentic, brand-aligned conversations.Experience: Ensuring a smooth shopping journey from chat to checkout.Re-engagement: Fostering personal dialogues instead of intrusive marketing.With the rapid evolution of AI in retail, Gorgias is laying the groundwork for the next decade of eCommerce. We envision a future where every brand has its intelligent agent, and every customer feels valued and understood.Join us in making Conversational Commerce a reality.Team & ContextGorgias is an AI-first company dedicated to developing innovative products driven by large language models (LLMs) and agent-based systems. We are the leading conversational commerce platform for Shopify merchants. Our AI Journey team is focused on enhancing the marketing aspect of our vision with AI-driven outbound conversations that engage shoppers through various channels, primarily SMS.Our product is actively utilized by merchants today, processing hundreds of millions of shopper events. We are scaling our operations to enhance AI reliability at higher volumes, broaden our shopper engagement capabilities, and solidify our systems for robust production loads. The most intriguing challenges lie ahead.This role is positioned at the nexus of product engineering and applied AI, concentrating on the development of reliable, scalable, and impactful LLM-powered experiences in production.About the RoleIn this role, you will have the opportunity to: Develop and scale production AI features utilized by thousands of merchants. Engage directly with LLMs, prompts, and agent workflows within a live product setting. Influence the architecture of AI systems as we continuously enhance our platform.

Your Impact Join Doctolib, a rapidly expanding healthcare technology platform, as we seek talented Frontend Software Engineers in Paris. We welcome developers at all stages of their careers, from newcomers to seasoned professionals, to join our innovative Engineering teams! As a Frontend Software Engineer, your role will be crucial in enhancing Doctolib's mission to provide high-quality products that benefit both patients and healthcare professionals. Your contributions will help solidify our position as a leader in the healthcare technology sector. Your key responsibilities will include: Collaborating with product managers, designers, and fellow engineers to develop features that provide real value to our users. Designing, developing, and maintaining React and TypeScript components while adhering to performance, accessibility, and scalability standards. Enhancing code quality through thorough testing, meticulous documentation, and constructive code reviews. Sharing your expertise and working collaboratively across teams to continuously advance Doctolib's frontend architecture. Life at Doctolib Tech Our solutions are built on a fully cloud-native platform that caters to both web and mobile applications, supports multiple languages, and is tailored to various healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower patients and health professionals. Learn more about our AI vision here. Curious about our tech culture and working environment? Visit the Doctolib Tech site.

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.

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.

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.

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.

EXCITING OPPORTUNITY: Fullstack Developer Java/React/AWS! Explore the Apsidian Life and become an Apsidien too //We could have asked Chat GPT to show you why Apside is the IT service company you need, but we prefer you discover it for yourself Discover your future mission // ContextClient: Transportation SectorTeam: Collaborative ExchangesWork Method: AgileRole: Contribute to backend development to evolve the product in line with project needs.Technical Environment: Kotlin/Java 11+, Spring, MongoDB, Git, Kubernetes, AWS MissionCode developmentUnit tests (TDD) and automated functional tests (BDD) and end-to-endPackaged applicationIssue analysis & support for operational problemsMaintain & contribute to CI/CD pipelinesDocumentationDeployment and monitoring of your application across all environments, from development to production. LocationÎle-de-France We offer you the following salary package //Contract: Permanent (CDI)Remuneration: based on profile(We first discuss, understand your skills/aspirations, and then agree on the salary. )Group Benefits: Swile restaurant card, mobility bonus, RTT, remote work agreement, health insurance, referral bonus…Agency Benefits: CE benefits, technical afterwork events, tech lead community, full coverage of health insurance, etc.Training: technical certifications, internal English lessons, access to a training catalog via our e-learning platform (Academy by Apside) or through our partner organizations.

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.

Role Overview Sopra Steria is seeking a Tech Lead with expertise in Fullstack Java and React for its Financial Services practice in Paris. This role guides a team of developers, shaping software solutions that support client objectives and business needs. Main Responsibilities Lead and coordinate a team of developers on fullstack Java and React projects Mentor junior team members and support their technical growth Work closely with cross-functional teams to deliver efficient, reliable software Promote best practices in coding standards and project management Contribute to the delivery of high-quality solutions for financial services clients What We Look For Significant experience with Java and React in a fullstack environment Strong leadership and team coordination skills Ability to mentor and guide junior developers Experience collaborating with diverse technical and business teams Location Paris, France

Join our innovative team that is transforming the future of global living.At The Flex, we envision a world where renting a home is instant, intelligent, and seamless—much like booking a ride. Our mission is ambitious: to empower anyone to live anywhere, anytime, without hassle.Driven by Base360.ai, our unique automation engine, we are crafting the operating system for modern renting—integrating property data, streamlining operations, and facilitating smooth stays across continents.If you are passionate about complex systems, automation, and developing software that has real-world applications, this position offers you the opportunity to take ownership and make a significant impact. What You'll CreateAs a Senior Software Engineer, you will design, develop, and scale essential components of The Flex platform—from core services and APIs to automation workflows and real-time systems.You will work with considerable autonomy, managing problems from start to finish and directly influencing architectural decisions while remaining deeply engaged with production code.This role is for engineers who prioritize impact over meetings and take pride in constructing systems that are reliable, elegant, and scalable. Your ObjectivesDevelop Core SystemsCreate and maintain scalable services that enhance bookings, payments, availability, pricing, and guest experiences.Design Robust APIsEstablish clean, well-structured APIs that connect Base360.ai with internal tools and external partners.Automate OperationsConstruct event-driven workflows that eradicate manual tasks and unlock operational efficiencies.Deploy with AssuranceImplement and manage cloud-native infrastructure on AWS with an emphasis on reliability, security, and performance.Tackle Meaningful ChallengesEngage in real-time booking synchronization, pricing intelligence, keyless access systems, AI-driven alerts, and live operational dashboards.Collaborate for SuccessPartner closely with product, data, and operations teams to transform complex requirements into straightforward, effective systems. Ideal Candidate ProfileExtensive experience in building production systems with Node.js, React, and AWS.Solid understanding of software design principles and best practices.Proficient with CI/CD practices and tools.Strong communication skills and a collaborative mindset.