Founding Fullstack Engineer at Verso | Paris

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 lookin…

Role Overview Sopra Steria is hiring an Expert Java Developer to join the financial services team in Paris. This position focuses on designing and building software that addresses the complex requirements of clients in the financial sector. What You Will Do Lead major software projects using Java technologies Work closely with colleagues from different disciplines Develop solutions tailored to financial services clients About the Team Based in Paris, the team values collaboration and technical excellence. The work environment encourages sharing ideas and solving challenging problems together.

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 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: 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...

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.

Are you a passionate Tech Lead specializing in JAVA? Join Meritis, a forward-thinking technology consulting firm based in Paris, where we harness innovation to deliver transformative solutions for our clients. We are seeking a dedicated professional who can lead projects and inspire teams with their expertise in JAVA development.

Join our dynamic team at Meritis as a Développeur Java. We are looking for an enthusiastic developer who is passionate about technology and eager to contribute to innovative projects. You will work in a collaborative environment, applying your Java expertise to develop and enhance applications that meet our clients' needs.

Join eosfrance as an Experienced Developer (H/F) in Paris. We are looking for a skilled and motivated individual who thrives in a dynamic environment. You will be part of a team that drives innovation and delivers top-notch IT solutions. Your expertise will contribute to exciting projects that make a real impact.

Join us as a Frontend Engineer specializing in TypeScript and React at connecthum, an innovative AI infrastructure startup dedicated to developing advanced solutions for the safety and management of large-scale AI systems.About connecthum:A pioneering AI-native product company focused on AI safety and infrastructure.Supported by a diverse group of international investors.Expertly handling large volumes of AI traffic within enterprise environments.Creating and optimizing proprietary models for enhanced performance and reliability.A compact, highly skilled team committed to rapid delivery.Our mission is to develop a robust control and evaluation framework for AI systems, empowering organizations to define, test, and regulate AI behaviors in real-world contexts.Your Contributions:Take ownership of and deliver comprehensive product features across the frontend and full stack.Craft user-friendly, high-quality UX designs that simplify complex AI workflows.Develop seamless product flows, from initial onboarding to advanced analytical capabilities.Work collaboratively with founders, product managers, designers, machine learning experts, and researchers.Translate state-of-the-art AI functionalities into dependable user-centric tools.Lead the product development lifecycle while shaping technical direction and product strategies.This hands-on position lies at the intersection of product development, AI, and engineering.Technical Environment:Proficient in TypeScript, React, and Next.js.Utilizing Tailwind CSS for design systems.Integrating with LLM APIs (OpenAI API, function calling, context orchestration).Creating data visualization and analysis interfaces.Building full-stack product architecture.Ensuring effective production deployment and system observability.Your Skills:Demonstrated expertise in TypeScript, React, and Next.js.Experience in developing product features from concept to deployment.Comfortable working with LLM APIs and navigating AI product workflows.Proven ability to collaborate with multidisciplinary teams.

About Air Apps Air Apps began in Lisbon in 2018 as a family-founded company with a clear goal: build the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since then, the team has expanded to San Francisco and reached over 100 million downloads, all while staying self-funded. The company focuses on pushing boundaries in AI-driven solutions that help people plan, work, and live better. Team members play a direct role in shaping products that empower users worldwide. React Native Engineer , Role Overview Air Apps is growing its team in Paris and seeking a React Native Engineer to help build and maintain a suite of mobile applications. This role involves close collaboration with designers, product managers, and engineers to deliver seamless, high-quality user experiences. The work centers on delivering applications that meet high standards for both quality and usability. This posting is part of a talent pool initiative ahead of the official job launch. Interested candidates will be contacted when the position formally opens. Location and Relocation This is a fully onsite position based at the Lisbon office. Daily work happens in person with cross-functional teams. Relocation support is available for those moving to Lisbon.

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 a Lean approach.Our unique methodology is built on three principles:- We have established recognized expertise in key product design and development technologies;- Regardless of the project phase, our priority in every decision is creating value for our clients;- We attract top digital talent and nurture their ingenuity through a Lean approach.Theodo has experienced exceptional growth over the last 15 years, with a team of over 700 dedicated professionals, primarily Software Engineers, passionate about technology and continuous improvement. As we grow, we have structured into specialized entities focused on technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo aims to generate €100M in revenue.Your Team:You will join a community of over 120 Theodoers: software engineers, tech leads, engineering managers, and architects, with whom you will exchange ideas, learn, and grow on a daily basis.At Theodo, our tech teams work in project-based groups tailored to the specific needs of each client. You will be part of a small team (4 to 5 members) comprising Software Engineers, a Tech Lead, and a Product Manager. Together, you will collaborate closely with clients, regularly sharing progress, deepening understanding of their challenges, and evolving the product to meet user needs.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will be to design and develop useful, high-performance, and sustainable digital products to address the challenges faced by our clients and their users.

Discover Theodo and Our Success StorySince 2009, Theodo has been a pioneering force in helping innovative companies design, develop, and launch ingenious digital products, leveraging cutting-edge technology and a Lean approach.Our unique approach is built on three key principles:- We have cultivated recognized expertise in essential product design and development technologies;- At every stage of a project, our priority is to create value for our clients;- We recruit the best digital talent and nurture their ingenuity through Lean methodologies.Theodo has experienced exceptional growth over the last 15 years: our teams consist of over 700 Theodoers, primarily Software Engineers passionate about technology and continuous improvement. With our growth, we have organized into specialized entities focusing on technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo is expected to generate €100M in revenue.Your Team:You will join a vibrant tech community of over 120 Theodoers: software engineers, tech leads, engineering managers, and architects, with whom you can exchange ideas, learn, and progress on a daily basis.At Theodo, our tech teams work in project groups 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, engaging in regular discussions to share progress, deepen your understanding of their challenges, and adapt the product to meet user needs.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will be to design and develop valuable, high-performing, and sustainable digital products that address the challenges faced by our clients and their users.

Theodo: A Journey of Innovation and SuccessSince 2009, Theodo has been at the forefront of assisting innovative companies in the design, development, and deployment of ingenious digital products, leveraging cutting-edge technology and a Lean approach.Our unique approach is built on three core principles:- We have developed recognized expertise in key technologies for product design and development;- At every stage of the project, our primary focus is creating value for our clients;- We recruit top digital talent and nurture their ingenuity through our Lean approach.Theodo has experienced exceptional growth over the past 15 years: our teams comprise more than 700 Theodoers, primarily Software Engineers, who are passionate about technology and continuous improvement. As we have expanded, the group has structured itself into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to generate €100M in revenue.Your Team:You will join a tech community of over 120 Theodoers, including software engineers, tech leads, engineering managers, and architects, with whom you can exchange knowledge and grow daily.At Theodo, our tech teams work on project teams tailored to each client's needs. You will be part of a small team of Theodoers (4 to 5 people), consisting of Software Engineers, a Tech Lead, and a Product Manager. Together, you will collaborate closely with the client, regularly sharing progress, deepening your understanding of their challenges, and evolving the product to best meet the needs of its users.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will be to design and develop useful, high-performing, and sustainable digital products to address the challenges faced by our clients and their users.

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.

Join our dynamic team at Meritis as a C++ Developer! In this role, you will be responsible for designing, implementing, and optimizing software solutions that meet our clients' needs. We are looking for innovative thinkers who are passionate about technology and eager to contribute to exciting projects.

Role Overview Meritis is looking for a C# Developer (H/F) to join the team in Paris. This position centers on building applications and supporting ongoing projects alongside experienced colleagues who care about quality and technology. What You Will Do Develop C# applications as part of project teams Work closely with professionals from different disciplines Contribute to project success through hands-on coding and collaboration Location This role is based in Paris.

Role Overview Meritis is looking for a C# Developer to help design and build software solutions in Paris. This role involves collaborating with a skilled team to deliver applications that support client requirements. The team works with agile methods to ensure projects move forward smoothly and adapt to change. What You Will Do Develop and maintain applications using C# Contribute to the design and architecture of scalable software Work closely with colleagues to deliver solutions that match client needs Participate in agile ceremonies and contribute to a collaborative work culture Location This position is based in Paris.

About the Role Meritis is looking for a C# Developer to join its team based in Paris. This role involves working closely with colleagues to build software solutions for a range of projects. What You'll Do Develop and maintain applications using C# Collaborate with other professionals to deliver project goals Contribute to the design and implementation of new features Location This position is based in Paris.