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Join altersolutions as a Full Stack . NET React Developer and become a vital part of our innovative team in Lille. We are looking for skilled developers who are passionate about creating seamless software solutions using the latest technologies.
altersolutions is a leading technology solutions provider dedicated to delivering exceptional software and IT services. Our team thrives on innovation and collaboration, creating a dynamic work environment that fosters professional growth.
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Jobgether is looking for a Senior Full-Stack Engineer with strong experience in Python and React. This position is based in France and focuses on building and improving applications that support the company’s growth. Role overview This role centers on developing and maintaining full-stack features using Python and React. The Senior Full-Stack Engineer will w…
Join the Luo TeamLuoPay is a rapidly expanding leader in the FX and cross-border payments sector in Africa. We empower African enterprises to expedite payments to their international suppliers with enhanced transparency and competitive edges over traditional methods.Having established ourselves as a prominent player in several markets in record time, we are eager to expand our engineering team and continue developing the financial infrastructure for FX and cross-border payments across Africa.Role OverviewAs a Senior Full Stack Engineer, you will be an integral part of a skilled team, contributing to a variety of internal tools and customer-facing products. Your innovations will support a payment infrastructure that handles millions of euros in transactions daily.This role demands a customer-oriented approach and the ability to effectively communicate with both technical and non-technical stakeholders to achieve robust technical solutions.Key ResponsibilitiesDeliver products to both customers and internal teams (payment operations, treasury management, FX trading, compliance).Develop web applications using React.Create user-friendly interface designs.Design and implement HTTP APIs using Golang.Utilize AI-driven development methodologies.Qualifications6+ years of experience in web product development.Proficient in building APIs using Golang, Typescript, or other statically typed languages.Experience working within a small, fast-paced technical team.A product-oriented mindset with a focus on customer needs.Strong written and verbal communication skills.Ability to assess trade-offs and balance effort with impact.Systems Developed at LuoPayPayment platforms for businesses in Africa.Internal tools for payment operators, treasury analysts, and FX traders.AI usage for OCR and invoice approvals.KYC onboarding processes.Anti-Money Laundering and Transaction Monitoring systems.Core Banking and Ledger Systems.Automated payout systems with banking partners.
Jobgether
Jobgether is looking for a Senior Full Stack Engineer based in France. This position focuses on building and maintaining software that supports and improves our platform. The ideal candidate brings strong experience with both front-end and back-end development. Role overview The Senior Full Stack Engineer will contribute to the design, development, and upkeep of new and existing features. Working with a range of technologies, this role supports the entire software lifecycle from concept to deployment. Collaboration and mentorship This role involves close collaboration with cross-functional teams to deliver reliable and effective products. Senior engineers are also expected to guide and mentor junior developers, sharing knowledge and helping the team grow. Requirements Significant experience in both front-end and back-end development Ability to develop and maintain complex software solutions Strong communication skills for team collaboration and mentoring
UpSlide is the leading productivity and branding solution for financial services. Our innovative software significantly enhances the functionalities of PowerPoint, Word, Excel, and Power BI, enabling users from prestigious firms such as Citi, KPMG, and BNP Paribas to focus on high-value tasks rather than formatting or manual data entry. With over 160 employees, we are in a growth phase, with offices located in Paris (headquarters), London, New York, Singapore, and Berlin.Our Core Values Our values guide our approach to work and are central to our recruitment process. We seek individuals who resonate with the following principles:Excellence: Every detail matters, and we prioritize the quality of our deliverables.Trust: We are passionate, committed, and empowered to act autonomously.Well-being at Work: We maintain a positive outlook and share our enthusiasm with colleagues and clients alike.The Team You will join the UpSlide development team, currently composed of 26 developers organized into 5 squads. Our missions for 2026 include:OfficeJS: Preparing UpSlide for the transition from Microsoft Office to Office JS.FA: Enhancing our product's superiority in the Financial Advisory sector.FA & AI: Strengthening our product's edge in Financial Advisory by focusing on AI-related solutions.IB & AM: Continuously improving our offerings for Investment Banking & Asset Management.Platform: Upgrading our infrastructure to support tenfold user growth.Join Us!
altersolutions
Join altersolutions as a Full Stack .NET React Developer and become a vital part of our innovative team in Lille. We are looking for skilled developers who are passionate about creating seamless software solutions using the latest technologies.
Located in the vibrant heart of Paris, Winamax is at the forefront of the online gaming industry. As a leader in poker and sports betting in France, we boast a community of 350,000 players and 600,000 monthly bettors. Our presence extends to Spain, Germany, and soon to Italy and Portugal. We are dedicated to providing our players with an exceptional experience that is technical, creative, and high-quality. Our core values of innovation, unity, and belonging foster a unique multicultural corporate culture.Imagine building your future in gaming!Technically, Winamax is:• A powerful and innovative gaming engine: dynamic adaptation of game offerings, highly configurable poker games, fraud detection.• A distributed and scalable architecture designed to handle real-time platform streams.• A modular platform that meets high availability and data security requirements, capable of managing significant traffic.ABOUT THE ROLEAs a member of our Tech team, you will play an active role in the development of the next generation of Winamax applications (desktop and mobile) and enhancing our cross-platform engine.This position is part of the Casino team responsible for developing Casino game clients (iOS, Android, Windows, Mac, Linux, Web).As a Senior Full-Stack Developer, you will be instrumental in designing, developing, and deploying our applications. Your responsibilities will include:• Developing innovative and scalable features for both front-end and back-end.• Producing robust code for real-time gambling applications.• Managing end-to-end processes: specifications, development, testing, and deployment.• Continuously improving software architecture and development best practices.
Devoteam
Role Overview Devoteam is looking for an AI Full Stack Python Developer to join the team in Levallois-Perret. This role focuses on building applications that use artificial intelligence and advanced technologies. Collaboration with colleagues is central, with a shared goal of delivering high-performing, responsive solutions. What You Will Do Design and develop both front-end and back-end features for AI-driven applications Work with Python and relevant frameworks to implement scalable solutions Apply AI principles throughout the development process Take responsibility for the full software development lifecycle, from initial concept to final delivery Location This position is based in Levallois-Perret.
Role Overview inetum2 is hiring a Full Stack Architect in Toulouse with expertise in React, Node.js, and Next.js. This role focuses on designing and building scalable applications that support business goals and user needs. What You Will Do Design and implement full stack solutions using React, Node.js, and Next.js Work closely with cross-functional teams to align technical architecture with project objectives Maintain high standards for code quality and performance About inetum2 inetum2 develops technology solutions for clients seeking modern, scalable applications. The team values collaboration and technical rigor. Location This position is based in Toulouse.
At Front, we are revolutionizing customer operations with our unique platform designed for the complexities of B2B interactions. Our solution ensures every team, tool, and customer conversation remains connected, empowering companies to scale while maintaining meaningful relationships. Unlike others that focus on simple interactions, Front excels in managing the intricacies of B2B customer relationships, and we proudly serve over 9,000 businesses, including industry leaders like Uber Freight, Navan, and Stripe.Supported by prominent investors such as Sequoia Capital and Salesforce Ventures, Front has successfully raised $204 million from top-tier venture capitalists and independent investors, comprising notable executives from Atlassian, Okta, Qualtrics, Zoom, and PagerDuty. Our commitment to creating a positive work environment has earned us multiple accolades, including Built In's 100 Best Midsize Places to Work in SF 2025, Top Places to Work by USA Today 2025, and #4 on Fortune’s Best Workplaces in the Bay Area™.In the Workflows pod, our goal is to transform complexity into streamlined processes through automated workflows, allowing our customers to achieve operational excellence.Key Responsibilities:Work closely with product managers, designers, and other engineers to develop innovative solutions.
About Nabla Nabla brings together entrepreneurs, clinicians, and engineers with a shared goal: making clinical work more rewarding for healthcare professionals. The team partners closely with forward-thinking clinicians to build an AI assistant that streamlines documentation and supports patient care. Nabla’s platform is now trusted by over 100,000 clinicians in more than 130 healthcare organizations. With recent Series C funding of $70M, Nabla is growing its Paris-based team to develop the next wave of clinical AI. The company’s roadmap includes expanding features such as ambient listening, dictation, coding, and command tools, all aimed at improving both clinical and financial workflows. AI and Healthcare at Nabla Nabla’s rapid growth is built on three years of focused product development. The engineering team, including former Meta AI Research engineers, stays ahead of the curve in applying AI to healthcare. The company benefits from the guidance of Yann LeCun, Chief AI Scientist at Meta and Turing Award winner, who serves as an advisor. Engineering Culture Engineering at Nabla is lean, agile, and technical. Teams work across machine learning, desktop applications, and platform infrastructure to deliver AI solutions that can scale in clinical environments. How Teams Work Product development at Nabla happens in cross-functional squads. Each squad focuses on a specific product area and includes product managers, designers, engineers with varied backgrounds, and domain experts. High ownership and collaboration define the way these squads operate. Senior Full-Stack Engineers join a squad and contribute to a focused part of the product. What You Will Do As a Senior Full-Stack Engineer in the Paris office, expect to play a key role in building and scaling Nabla’s AI-powered healthcare platform. The work covers multiple layers of the platform, integrating advanced technologies to improve both user experience and operational efficiency.
Join Margo Group as a Full Stack Developer specializing in Java and React. We are seeking a talented and motivated individual to contribute to our innovative projects and help shape the future of our tech solutions. As part of our team, you will work closely with designers and product managers to refine our offerings and deliver high-quality software solutions.
Join Outsight, where our cutting-edge software transforms 3D LiDAR data into actionable insights for tracking the movement of individuals and vehicles. Our solutions are utilized by a variety of transportation hubs, including airports and train stations, as well as sports venues, road infrastructures, and industrial sites. We empower operators with precise and anonymous Spatial Intelligence data to enhance operational efficiency and ensure user safety and satisfaction. Our diverse team of experts, spanning across Paris, San Francisco, Sophia-Antipolis, and Hong Kong, is dedicated to advancing our innovative solutions. With a commercial office in Spain, we are committed to our global outreach. Discover more about us through this link: Insights about Outsight. Trusted by leading airports and train stations worldwide, our Passenger Flow Traffic Monitoring solution is a cornerstone of our offerings. Our Car Traffic Remote Monitoring product has also gained the confidence of Tier 1 clients, including BMW. Role Overview We are seeking a vital contributor to our Outsight Shift product suite. Our ecosystem encompasses real-time 3D monitoring of digital twins, live analytics, and decision support tools designed to optimize user management of people and vehicle flows. In this role, you will play a crucial part in architecting our application and frontend foundations to ensure scalability as our product capabilities expand. You will emphasize design, performance, usability, and maintainability while collaborating closely with product managers, data engineers, and scientists to deliver seamless user experiences.
Who Are We?Xcelirate is at the forefront of technological innovation, creating advanced platforms that cater to thousands of users every minute! We take pride in cultivating a dynamic workplace where the brightest developers collaborate to strategically design and efficiently implement practices that not only sustain our market leadership but also drive our global growth. Our decade-long journey of success is a testament to our dedicated customers and the talented team that makes it all possible!What Are We Looking For?As a seasoned full-stack developer, you have navigated both the backend complexities and frontend intricacies with ease. PHP is your dependable ally, while JavaScript presents challenges that you tackle head-on. You thrive on independence; you're not just a team player but a guiding force within the team. You don’t wait for instructions; you lead the charge with a proactive mindset.Your passion lies in crafting functional solutions. Whether it’s implementing a sleek new feature, resolving an eccentric legacy bug, or diagnosing a stubborn button, you are dedicated to delivering high-quality work. You value clean, maintainable code, yet you recognize when practical solutions are necessary.Building applications ignites your enthusiasm. You constantly refine, optimize, and enhance because that’s just who you are. You enjoy the thrill of accelerating processes, cleaning up code, and sometimes questioning past coding choices.You're not deterred by legacy systems; whether it's a PHP application last touched in 2010 or a JavaScript file overflowing with lines and lacking best practices, you’re ready to take on the challenge.Your Responsibilities:Independently manage your time while aligning with company priorities.Develop new features and enhance existing functionalities across our platforms.Refactor and improve applications to ensure they are performant, scalable, and maintainable.Create tests (unit, integration, end-to-end) to guarantee software reliability.Engage in all phases of the software lifecycle, from conception to deployment.Contribute to technical discussions that shape our applications and infrastructure.Get hands-on with the entire stack, from backend algorithms to frontend interactions.Identify and eliminate inefficiencies to streamline workflows.Ensure ownership of your tasks, delivering high-quality results and sustainable solutions.
At Algolia, we are at the forefront of AI-powered search technology, enabling over 17,000 businesses to deliver rapid and predictive search experiences at scale. Each week, we process more than 30 billion search queries — surpassing the combined total of Microsoft Bing, Yahoo, Baidu, Yandex, and DuckDuckGo.In 2021, we secured $150 million in Series D funding, elevating our valuation to an impressive $2.25 billion. This strong financial foundation allows us to continuously enhance our market-leading platform, serving incredible clients such as Under Armour, PetSmart, Stripe, Gymshark, and Walgreens.The TeamThe Frontend Experiences (FX) team is dedicated to inspiring and empowering Algolia users in crafting exceptional UI experiences powered by Algolia. We envision, develop, and decompose advanced UI experiences into modular elements ready for integration into our users' applications. Our suite of UI libraries, including Autocomplete, is widely utilized, even appearing in the Tailwind and React documentation. Additionally, we maintain the InstantSearch library platform, unlocking complex and modern search and discovery applications.Our approach is framework-agnostic; we utilize various frameworks, including Vue.js and React, as well as plain JavaScript (Vanilla JS). We prioritize quality, writing specifications for every feature we release. Our codebase is in TypeScript, fully open-source, and thoroughly tested.Beyond frontend development, we also handle specific backend functionalities that enhance our user experiences, utilizing TypeScript, Go, and Python.The OpportunityWe are seeking a Full-Stack Engineer to join our Frontend Experiences (FX) team at Algolia. In this role, you will significantly influence the design and functionality of Algolia-powered user interfaces. You will assist customers in reimagining the future of how people search for and discover information. Your contributions will be crucial in architecting our platform, which serves as the face of Algolia’s Developer Experience.Your responsibilities will include:Architecting, designing, and developing new iterations of the InstantSearch platform, alongside our open-source libraries and backend APIs.Designing and implementing features that utilize agentic patterns within the Algolia platform and our open-source libraries.Developing new features, troubleshooting issues, and analyzing user feedback for our well-regarded open-source projects.Collaborating with product, design, and marketing teams on the rollout of new projects and websites.Taking ownership of projects, researching, exploring, and delivering innovative experiences.Sharing your expertise to enhance our understanding and improve search and discovery capabilities.
Role overview This Tech Lead position at SQLI centers on full stack development using Java and either Angular or React. Based in Levallois-Perret, the role supports projects in the energy sector, combining technical leadership with hands-on development work. What you will do Lead a team through the design, development, and delivery of applications that support operations in the energy sector. Collaborate with colleagues to create solutions aimed at improving efficiency and supporting sustainability objectives. Oversee technical decisions, ensuring best practices are followed across backend (Java) and frontend (Angular or React) development. Team environment Work alongside specialists who are committed to technology and innovation in the energy field. Projects focus on solving operational challenges and contributing to the sector’s future direction.
Who Are We?Xcelirate is at the forefront of technology, creating innovative platforms that serve thousands of users every minute! We pride ourselves on cultivating an environment where leading developers collaborate to strategically plan and swiftly execute initiatives that solidify our market leadership and fuel our global expansion. Our decade-long growth is a testament to our dedicated customers and the talented team that drives this success.What Are We Looking For?We are seeking a Principal Full-Stack Engineer who has not only navigated the complexities of software development but also played a pivotal role in shaping architectural decisions. Your extensive experience means you view programming languages as mere tools that facilitate the translation of ideas into executable code—selecting them based on practicality rather than trends. You understand that innovation comes from progress, not just novelty.Your journey has equipped you with a wealth of knowledge, including when to abandon outdated practices and embrace more efficient solutions. You are deeply engaged in coding, preferring to remain close to the technology rather than stepping into management roles unless necessary.With a calm and methodical approach to problem-solving, you bring stability to any project. When you join a team, chaos subsides, making way for clearer decision-making and improved collaboration. Your intuitive grasp of key concepts such as optimization and lazy initialization is impressive, and your ongoing home lab projects showcase your curiosity and passion for continuous learning.If this resonates with you, consider applying for this role!What Will You Be Doing?Manage your time effectively while aligning with company priorities.Take ownership of complex engineering challenges from initial problem identification through design, delivery, and iterative improvements.Ensure critical platform components remain reliable, efficient, and maintainable.Develop new features and enhance existing functionalities across our platforms.Refactor codebases to improve performance and maintainability.
Prelude
Role Overview Prelude is looking for a Full-Stack Engineer based in Paris, France. This role involves building and maintaining both front-end and back-end features for our applications. The work touches every layer of our systems and directly shapes how users interact with our products. What You Will Do Develop new features across the stack, from user interfaces to server-side logic Maintain and improve existing code to keep applications reliable and efficient Apply software development best practices in daily work Collaborate closely with developers, designers, and product managers to deliver solutions that address real user needs Contribute to our agile development process and help the team adapt as we grow Tech and Collaboration This position offers the chance to work with modern technologies and frameworks. Teamwork is central: engineers, designers, and product managers work together to solve problems and build new features.
About UpflowUpflow is a pioneering provider of innovative cash collection technology designed to assist B2B enterprises in streamlining their payment processes.As a product-driven SaaS startup founded in 2018, we have earned the trust of hundreds of companies across the US and EMEA, including notable names such as Lattice, ProductBoard, and Instawork. Our growth is supported by esteemed investors including YCombinator, Hexa, and Hedosophia, along with prominent business angels from N26, Square, Mercury, Uber, and NetSuite.This role presents an incredible opportunity to engage and develop your skills within a rapidly expanding Fintech landscape and an international team.To explore more about our company culture and team, visit our careers page at www.upflow.io/careers.About the RoleJoin a small, agile team based in Paris or operating remotely, where you'll create impactful features for our users. Your responsibilities will cover a diverse array of topics including workflow automation, payment processing, and communication functionalities such as email, calls, and letters. We are committed to integrating AI into our product offerings, and you will be instrumental in establishing our AI foundations.Our development practices involve continuous deployment, with an average of 10 deployments per day. We value pragmatism, ownership, and a growth mindset within our team.Your ResponsibilitiesYour daily tasks will include:Designing and implementing complex, high-impact product features from inception to completion.Collaborating closely with product managers, designers, and fellow engineers to translate business needs into technical solutions.Delivering clean, maintainable code to production on a daily basis.Actively participating in code reviews, providing and accepting constructive feedback.Diagnosing and resolving complex product issues.Enhancing application performance and ensuring scalability.
CryptoNext Security
About UsAt CryptoNext Security, we are pioneers in the realm of deep technology, focusing on post-quantum cryptography. Our innovative solutions empower businesses and institutions to safeguard their data against the impending challenges posed by quantum computing. We proudly collaborate with prominent clients across sectors such as finance, defense, and telecommunications.Your Daily ResponsibilitiesCraft and implement dynamic user interfaces utilizing React for our advanced post-quantum cryptography products.Work collaboratively with Product and Backend teams to deliver a seamless and user-friendly experience.Enhance performance while ensuring cross-browser and cross-device compatibility.Integrate REST APIs to facilitate interaction with backend services.Engage in code reviews and uphold best practices, including unit testing, continuous integration, and comprehensive documentation.Propose enhancements to frontend architecture through technological upgrades and refactoring.Foster improvements in our products beyond your typical responsibilities.Adhere to our frontend team principles: “Done over perfect” / we prioritize speed: KISS, DRY (Don't Repeat Yourself), SOLID.Essential SkillsProficient in React / Next.js along with its ecosystem (React Hooks, Context API).Solid understanding of TypeScript and fundamental programming principles.Experience with modern UI libraries such as Tailwind or chadcn/ui.Proven track record in integrating REST APIs.Strong knowledge of frontend performance optimization and related tools (Webpack, Vite, Core Web Vitals).Familiarity with frontend testing frameworks like Jest, React Testing Library, and Cypress.Competence in Git, CI/CD pipelines, and DevOps for automated integration and deployment.Desirable SkillsExperience with gRPC.Understanding of secure coding practices and application security.Basic knowledge of cryptography and cybersecurity.Experience in a startup or deeptech environment.Join Our TeamYou will become a key member of our R&D team, collaborating closely with backend developers, product managers, and UX/UI designers. You will report to the team lead and work with various departments to develop high-performance, user-centric interfaces that align with our clients' needs.Application ProcessInitial conversation with our HR team to discuss your background and motivations.Technical interview to assess your skills and fit for the role.
Jobgether
Jobgether is looking for a Full-Stack Product Engineer based in France. This position centers on building web applications that improve how users interact with our platform. The work involves both front-end and back-end development, drawing on a broad technical skill set. Role overview This role focuses on designing, developing, and implementing software that can scale as our user base grows. Collaboration with teams across different disciplines is a regular part of the job, ensuring that each product release meets user needs and business goals. What you will do Work on both the client and server sides of web applications Partner with colleagues from various departments to plan and deliver new features Help shape the direction of our product through technical input and hands-on development Requirements Experience with front-end and back-end technologies Comfort working in a collaborative, cross-functional setting Ability to design and build scalable software solutions
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Browse all companies, explore by city & role, or SEO search pages. View directory listings: all jobs, search results, or location & role pages.
