Lead Software Engineer - Healthtech Division in Paris

Role Overview Theodo is hiring a Lead Software Engineer for its Healthtech division in Paris. This role centers on guiding teams to build software that improves healthcare delivery. The position involves hands-on leadership, technical direction, and a focus on solutions that make a real difference in patient care. What You Will Do Lead engineering projects f…

Overview Join Esri as a Software Development Engineer Intern in Cachan, where you will leverage your scientific and technical expertise! Collaborate with seasoned software developers and engineers to gain invaluable hands-on experience while contributing to the creation of cutting-edge analytics software used across various industries, including ArcGIS. This full-time, paid internship spans 12 weeks, commencing in late May or June. Interns at Esri have had the opportunity to engage in a diverse array of exciting projects, including: Research and implementation of a large language model (LLM) for testing and test automation. Exploration of Machine Learning-driven GIS for aerial detection. Development of Data Science and Machine Learning tools to identify patterns within extensive datasets. Creation of an augmented reality application for Android mobile platforms. Utilization of Python to enhance 3D segmentation techniques. Development of a JavaScript web application with analytical capabilities integrated into ArcGIS. Integration of geospatial technologies with mobile applications to support first responders during disaster relief efforts. Responsibilities Work collaboratively with the product development team to design, develop, and test software solutions. Enhance your problem-solving skills by tackling and resolving complex issues. Stay informed about emerging technologies and trends in the field of software development. Practice writing high-quality code, adhering to coding standards and version control practices, while participating in code reviews and managing software in a shared repository. Requirements Currently pursuing a Master 1 or Master 2 degree at a university or Grande École in France, with a focus on computer science, applied mathematics, computer engineering, software engineering, or a related field. Proficient in one or more of the following areas: computer vision, deep learning, C++, C#, Python, PyTorch, CUDA. Available for a consecutive, 12-week internship at our Cachan offices starting in May or June 2026. Possess valid work authorization for France. Recommended Qualifications Familiarity with Esri's ArcGIS platform.

Join our dynamic team of 9 mobile software engineers, led by an Engineering Manager and supported by a Project Manager, as we develop a cutting-edge mobile solution that encompasses two native applications. Our tech stack includes Kotlin Multiplatform, Jetpack Compose, and SwiftUI, complemented by a robust CI setup using Bitrise, along with custom apps and internal developer tools.We are seeking a Junior Android Developer with 0.5 to 2 years of experience who is eager to learn the Kotlin Multiplatform tech stack in the short term and expand into iOS development in the mid- to long-term.As part of our R&D department, which boasts over 80 engineers, our mobile team plays a vital role in enhancing 360learning’s offerings to meet the growing demands of our users for an engaging mobile learning experience. You will have the opportunity to:- Confront real and intricate technical challenges: Work with a complex codebase that requires analytical and modeling skills. Join a platform with a significant user base (2.3 million registered users) and a strong emphasis on code quality, utilizing modular and layered clean architecture, systematic code peer reviews, and automated testing on each pull request.- Engage with an attractive technical stack: Our mobile team has been committed to Kotlin Multiplatform since its inception in 2020, with 80% of the codebase already migrated. This is supplemented by Kotlin/Jetpack Compose on Android and Swift/SwiftUI on iOS.- Thrive within a progressive R&D team: Our decentralized peer review process ensures you receive high-quality and regular feedback from fellow team members. Collaborate with a team of highly skilled engineers who promote pair programming and knowledge sharing.

About UsHarmattan AI is a pioneering defense technology company focused on developing autonomous and scalable defense systems. After successfully securing $200M in Series B funding, which values the company at $1.4 billion, we are actively expanding our teams to enhance our capabilities and deliver critical systems to allied forces.Our mission is driven by a commitment to creating real-world impact through technology, striving for excellence, setting ambitious objectives, and tackling the most challenging technical problems. We operate in a high-stakes environment where rigor, accountability, and execution are paramount.About the RoleAs a Software Engineer on the Ground Control Systems (GCS) team, you will be instrumental in developing our new line of drone controllers—high-performance, Android-based control stations tailored for professional UAV operations. Your role will involve extending and adapting the open-source QGroundControl platform (C++/Qt) to work seamlessly with our proprietary hardware, enhancing its features while ensuring reliability, performance, and scalability across various missions.ResponsibilitiesApp Development: Design, develop, and optimize our QGroundControl-based application utilizing C++ and Qt.Hardware Integration: Customize the application interface with physical controls (joysticks, buttons, switches, touchscreen) to provide a cohesive user experience.Feature Implementation: Transform user needs and mission requirements into actionable functionalities and UX/UI enhancements.Platform Maintenance: Port and maintain the application across different Android versions, ensuring optimal performance, compatibility, and security.Deployment: Oversee application updates and releases across our device fleet.Collaboration: Collaborate closely with embedded systems and electronics teams to facilitate smooth hardware/software integration, and partner with QA for field validation.

Paris | Full-time | Fluent in French & English The e-commerce landscape is evolving rapidly, yet independent brands often find it challenging to compete with the logistical efficiency of industry giants like Amazon. At Bigblue, we are dedicated to transforming this reality.Our mission is to empower brands by providing access to top-tier operational capabilities, enabling them to grow swiftly while ensuring an exceptional customer experience.Since our inception in 2018, we have developed an innovative tech-driven logistics platform that currently supports over 500 brands, ranging from rapidly expanding direct-to-consumer enterprises to globally recognized names such as MUJI, Aigle, and Cabaïa. With a talented team of 110+ employees across Paris, Madrid, and London, and our proprietary Warehouse Management System (WMS) Atlas, we are tackling logistics challenges that others shy away from — making fulfillment processes faster, smarter, and more sustainable.Backed by over $20 million in funding and trusted by the next generation of e-commerce innovators, we are experiencing rapid growth — aiming to handle 10 million orders in 2024 and embarking on ambitious enterprise expansion. The future is bright, and we’re searching for the right partners to help us lead the charge.

Join Our Team at KovaleeAt Kovalee, established in 2020, we are on a mission to revolutionize the mobile industry by empowering app developers to reach the pinnacle of their niche, irrespective of their resources. Our cutting-edge technology and deep expertise in user acquisition, app store optimization, product enhancement, and monetization enable developers to concentrate on their passion while we accelerate their app's growth. Our successful applications, such as Bend, PepTalk, and ParrotPal, showcase our commitment to excellence and our ability to drive results.Recognized as one of the fastest-growing startups of 2024 by Sifted, we are a diverse team of over 20 professionals from more than 15 nationalities, unified by a common goal: to redefine the mobile app landscape.We are seeking a Senior Software Engineer to become a crucial part of our team, responsible for creating and sustaining the foundation of our publishing platform. In this role, you will collaborate closely with operations to address real-world business challenges while helping us innovate rapidly and ambitiously. You will report directly to the CTO and work alongside another talented software engineer.

Join the dynamic Nexthink Engineering department, where you will be an integral part of a team dedicated to developing the Collectors—advanced endpoint agents utilized by millions of employees. These Collectors play a pivotal role in extracting and interpreting vital information from operating systems, sending it to our powerful data analytics systems, and enhancing user experience by identifying and resolving issues.As a Senior Software Engineer, you will face a series of exciting challenges: • Challenge #1: Develop comprehensive and reliable solutions. • Challenge #2: Create solutions for multiple platforms, leveraging the best features from each. • Challenge #3: Ensure cross-platform compatibility wherever possible.Our engineers thrive on tackling broad, unconventional problems, refining them into actionable solutions. They continuously innovate, prototype new ideas, and measure their impact while upholding our unwavering standards of quality, performance, and security.

Join the dynamic technical teams at iad Business Factory as a Frontend Software Engineer under the guidance of an Engineering Manager. You will collaborate with a diverse group of developers, Product Owners, Project Managers, Quality Assurance professionals, and designers, all dedicated to enhancing our Playiad application.Your role will encompass developing new web-oriented projects as well as evolving and maintaining existing features, all while adhering to a philosophy of continuous product improvement. Your primary responsibilities will include:Implementing solutions based on guidelines established by the technical leadership (Clean Architecture, Test-Driven Development, Domain-Driven Design, Behavior-Driven Development, etc.),Understanding the business needs of each user story (product culture),Ensuring high-quality code through test-driven development practices,Engaging in self-directed learning through continuous monitoring of technologies and best practices,Adopting a pragmatic and straightforward approach to development,Collaborating effectively with team members within your product family,Ensuring the reliability of applications in production with a 'You build it, you run it' ethos,Following principles of software craftsmanship and Extreme Programming (XP). Technical Stack:Development: Vue3, Tailwind, VueQuery, Vitest, Composable, TypeScript, VeeValidate, StoryBook, PNPM, Vite, Figma, VuePress, PHP 7/8, Symfony 4/6Databases: PostgreSQL, MySQLGitflow: Trunk-basedInfrastructure as Code: Terraform, AnsibleAWS Services: EC2/ECS, RDS/Aurora, Lambda/Step Functions, API GatewayMessaging Systems: RabbitMQ, AWS SQS, SNSLinux Environment: Shell scripting, Cron jobs, etc.CI/CD Tools: GitHub, Docker, GitHub Actions, Jira, Confluence

Join the dynamic technical teams at iad Business Factory, where you will work under the guidance of an Engineering Manager. You will be part of a collaborative squad consisting of developers, Product Owners, Project Managers, Quality Assurance specialists, and designers, all focused on enhancing our Playiad application.Your role will involve developing innovative web-oriented projects as well as evolving and maintaining existing features in a continuous improvement mindset.You will be integrated into the Grow Squad within the MLM Tribe, responsible for core MLM model developments including sponsorship, onboarding, accreditation, real estate training, organizational dynamization (gamification), and genealogical evolution across various geographies. Your primary responsibilities will include:Developing based on concepts established by the technical management (Clean Architecture, TDD, DDD, BDD, etc.),Understanding the business needs of each user story (product culture),Ensuring high quality in deliverables through test-driven development,Engaging in self-directed learning and staying updated on technologies and best practices,Adopting a straightforward and pragmatic approach to development,Collaborating closely with your product family members,Ensuring the reliable operation of applications in production ("You build it, you run it"),Adhering to software craftsmanship principles and XP practices. Technical stack:Development: PHP, SymfonyDatabases: PostgreSQL, MySQLInfrastructure as Code: Terraform, AnsibleAWS: EC2/ECS, RDS/Aurora, Lambda/Step Functions, API GatewayCommunication systems: RabbitMQ, AWS SQS, SNSLinux environment, Shell scripting, Cron jobs, etc.CI/CD tools: GitHub, Docker, GitHub Actions, Jira, Confluence

Role Overview Theodo is hiring a Lead Software Engineer for its fintech division in Paris. This role centers on guiding a team of developers to build and deliver software products for the financial sector. The position combines hands-on technical leadership with team mentorship and cross-team collaboration. What You Will Do Lead and mentor a team of software engineers focused on fintech projects Drive the design and development of new software applications for financial services Work closely with product, design, and other teams to deliver reliable, high-quality solutions Promote a culture of technical excellence and ongoing improvement within the team Location This position is based in Paris.

About Mistral AIAt Mistral AI, we harness the transformative potential of artificial intelligence to streamline processes, enhance creativity, and boost productivity. Our innovative technology integrates effortlessly into everyday workflows.We are dedicated to democratizing AI with high-performance, optimized, and cutting-edge open-source models, products, and solutions. Our extensive AI platform caters to both enterprise and individual needs, featuring offerings such as Le Chat, La Plateforme, Mistral Code, and Mistral Compute, all designed to deliver state-of-the-art intelligence to users.Our team is dynamic, collaborative, and driven by a shared passion for AI and its potential to impact society positively. We celebrate diversity within our workforce, which spans across France, the USA, the UK, Germany, and Singapore, and we thrive in competitive environments committed to innovation. Our culture is creative, team-oriented, and low-ego.Join us at the forefront of AI innovation, where together we can make a significant difference. Discover more about our work culture at https://mistral.ai/careers.Mistral AI participates in the E-Verify programPosition Overview – Software Engineering TrackAs a Research Software Engineer, you will be instrumental in designing and fortifying our codebase, tools, and distributed services that empower our scientists to train and deploy frontier-scale models. Prior experience in machine learning is not a prerequisite; what is essential is your ability to write clean, reliable, and scalable code.You will collaborate with our Platform Research Engineers team to create and maintain shared development tools, evaluation and data pipelines, training frameworks, cluster tooling, and CI/CD processes.Location: Paris / London (hybrid) or remote within the EU/UK with one in-person meeting per month.Key Responsibilities• Facilitate research by managing the intricate components of large-scale pipelines and delivering robust internal tools.• Bridge the gap between research and product: develop clean APIs, automate model deployments, and present real-time metrics.• Write high-quality, well-tested Python and systems code; enforce best practices in code reviews, CI, and observability.• Design and optimize distributed services (Kubernetes / SLURM, handling thousands of GPU jobs).• Prototype tools (CLI, dashboards) and refine them into stable, shared libraries.About the Research Engineering TeamOperating from Paris and London, our Research Engineers fluidly navigate between research and production, ensuring the seamless implementation of innovative AI solutions.

Note: This position requires relocation to our Milan office.About SatispaySatispay is on a transformative journey to simplify everyday payments, making them fair and accessible to everyone. Our mission is to redefine the future of money, empowering millions through collective action to address significant challenges. We're just getting started!As a member of our Core Team, you will engage with critical systems, managing external bank interactions, orchestrating payments, and establishing a robust infrastructure for Identity and Access Management (IAM). The team is also pivotal in risk management, focusing on credit risk and fraud detection.We operate with agility, bold thinking, and mutual trust, challenging conventions while learning and evolving. If you seek more than just a job—if you aspire to create meaningful impact with a talented team—you are in the right place.Your ResponsibilitiesIn your role as a Staff Software Engineer within the Core Team, you will play a critical part in shaping the foundation of our payment platform. You will work on mission-critical engines that power Satispay, ensuring reliability, consistency, and security for millions of users.Daily tasks will include:Define Technical Strategy: Establish the long-term technical vision for our critical domains and architect complex subsystems that serve as the foundation of the company, balancing cross-product requirements with the need for speed and reliability.Architect Core Financial Systems: Design and scale high-throughput engines responsible for the transaction ledger, payment orchestration, and external bank integrations, ensuring accurate and available

Are you passionate about creating exceptional software experiences? Join Speechify as a Senior Software Engineer in our Core Experiences team based in Paris, France. In this role, you will be instrumental in designing and developing innovative solutions that enhance user engagement and drive our mission forward. Collaborate with cross-functional teams to transform ideas into reality while ensuring top-notch performance and scalability of our applications.

Join Theodo Apps as a Mobile Software Engineer!Since 2009, Theodo has been at the forefront of innovation, helping businesses design, develop, and deploy ingenious digital products by leveraging cutting-edge technology and Lean methodologies.With remarkable growth over the last 15 years, our team has expanded to over 700 talented Theodoers, primarily consisting of passionate Software Engineers dedicated to continuous improvement. Theodo has structured its operations into specialized entities focusing on technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo is projected to generate €100M in revenue.Theodo Apps, our division specializing in multi-platform application development (mobile, web, and TV), has successfully delivered over 130 projects. We partner with our clients to design, develop, and deploy applications that transform user experiences.In just a decade, Theodo Apps has grown from 2 to 120 employees, achieving a revenue of €24 million in 2024!We collaborate with a diverse range of clients, from innovative entrepreneurs and SMEs to industry giants like TF1+, Carrefour, Urgo, and Compagnies des Alpes.Your Team:The technical team at Theodo Apps consists of 49 software engineers, tech leads, and architects, all from top engineering schools, along with Engineering Managers dedicated to your success.Your Future Responsibilities:As a Mobile Software Engineer, your mission will be to solve strategic challenges for our clients through technology while contributing to the growth of Theodo Apps by enhancing your skills and pursuing continuous improvement.- Design and develop multi-platform applications (mobile, web, TV)

Join our innovative team at Vusion Group as a Senior Software Engineer. In this crucial role, you will be responsible for developing high-quality software solutions, collaborating with cross-functional teams, and driving technical excellence within our R&D department.Your expertise in software development will be key to delivering robust applications and enhancing existing systems. If you are passionate about technology and looking to make a significant impact in a dynamic environment, we encourage you to apply.

Role Overview Theodo is hiring an AI-Native Software Engineer in Paris. This position focuses on building software for the fintech sector using artificial intelligence tools and methods. The team works closely with clients to improve how financial products work and feel. What You Will Do Develop software solutions that use AI to address challenges in finance Work with other engineers to design, build, and refine applications Help improve clients' operations and the experience of end users Collaboration Work alongside skilled engineers on projects that shape the future of fintech. Expect regular knowledge sharing and teamwork throughout each project cycle.

Role overview Alten is hiring a C++/C Development Engineer for its Rail department in Paris. The team tackles projects that shape the future of transportation, with a focus on practical engineering and collaborative problem-solving. What you will do Design, develop, and maintain software using C++ and C for rail sector projects Work alongside fellow engineers to deliver dependable technical solutions Take part in technical discussions and contribute to process improvements Requirements Keen interest in software development and transportation technology Openness to learning and adapting to new technical challenges Collaborative mindset and proactive attitude Location This role is based in Paris.

Join us as a pivotal member of the Backend team at amo, where you'll play a critical role in shaping our infrastructure. In the initial months, you will collaborate closely with the team and gradually take charge of key components and features. At this early stage of our journey, we are in search of adaptable engineers who are eager to contribute across multiple facets of our company’s foundation.We appreciate team members who dive deeply into their areas of expertise, fostering a culture of subject matter mastery within our team. This dedication to specialization is a core expectation for every engineer.Our backend team is responsible for both server-side operations and the backbone of the client, as we believe a unified team can more effectively manage topics like networking, data modeling, management, and synchronization.As a Backend Engineer, your daily responsibilities will include:Building the FutureYou will develop robust systems designed to handle significant traffic, vast amounts of data, and an unparalleled rate of scaling. Your toolkit will include cutting-edge technologies, elegantly crafted code, and systems built for seamless horizontal scaling.Ensuring Cross-Platform CohesionBeyond server-side development, you will be involved in the enhancement and maintenance of a Rust component shared between iOS and Android. This component primarily focuses on networking, data synchronization, and data-oriented feature logic, benefiting from a single codebase. You will collaborate with mobile engineers to ensure a consistent experience across platforms and bridge the gap between mobile development and backend architecture for a cohesive user journey.Innovative Feature DevelopmentEngage in brainstorming sessions to design and implement unique features that distinguish us in the marketplace.Commitment to Continuous ImprovementWe value mutual learning and staying updated with industry trends and emerging technologies, encouraging fresh ideas and contributions to our culture of continuous improvement.Ownership of Your DomainYou will monitor analytics and manage system incidents, taking ownership of your responsibilities and proactively addressing issues and bug fixes.

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.

Theodo at a Glance Since 2009, Theodo has partnered with forward-thinking companies to design, build, and launch digital products. The team combines technology expertise with Lean methodology to deliver results that matter. Theodo’s approach stands on three principles: Deep expertise in essential technologies for product design and development Consistent focus on creating value for clients at every project stage Recruiting top digital talent and fostering their growth through Lean practices Over the past 15 years, Theodo has grown to a team of more than 700, with most roles in software engineering and a shared drive for continuous improvement. The group is organized into specialized units by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Products Goods). Theodo aims to reach €100M in revenue by 2025. About the AI Modernization Practice The AI Modernization team leads Theodo’s efforts to become a European leader in applying AI to software development. This practice focuses on using AI to migrate legacy systems to modern languages and frameworks. The goal: reduce business, cybersecurity, and compliance risks tied to outdated systems. By combining controlled AI with a proven approach, the team delivers critical projects up to three times faster than traditional methods. The Team Structure Join a community of over 350 Theodoers: software engineers, tech leads, engineering managers, and architects. Theodo encourages daily learning and knowledge sharing across this network. Project teams are tailored for each client. As a Lead Software Engineer - AI Modernization, you’ll work in a small group of 4 to 5 people, typically including Software Engineers, a Tech Lead, and a Product Manager. Teams collaborate closely with clients, sharing updates, exploring challenges, and adapting products to user needs. The field of software engineering is changing with AI. This is a chance to develop as an AI-Native Tech Lead. Location Role based in Paris.