Engineering Director

About LedgerAt Ledger, we are a passionate team of innovators dedicated to redefining digital ownership and freedom. Our mission is to empower users, creators, and enterprises to manage their value independently and securely. We thrive on curiosity and are committed to making technology inclusive for everyone. As a global leader in digital asset security, wi…

Making preventive health the default for every human in EuropeThe missionAt Lucis, we are dedicated to transforming healthcare from a reactive model to a preventive one. Our goal is to develop an operating system for human longevity, empowering individuals to extend their healthy years. Discover more about our vision and values here.The roleOur team has successfully processed over 200,000 clinical tests across four countries and is experiencing a growth rate of 10% week over week. We are still in the early stages of our journey.We seek engineers who focus on building comprehensive systems rather than just features. You will take ownership of outcomes from start to finish, leveraging AI to enhance processes and elevate the standards around you.Your work will not be limited to writing boilerplate code; you will create specifications for agents, critically review AI-generated code, and make impactful decisions that build upon themselves over time. This is the modern landscape of engineering—if this resonates with you, we invite you to continue reading.Together, we will define the scope of your role—whether it be mobile, infrastructure, platform, AI, or full-stack—based on your strengths and our needs.What you could own:Full-stack vertical ownership: Manage everything from data models to APIs and user interfaces, ensuring they are production-ready.Algorithms: Collaborate with our medical advisors to convert clinical science into reproducible, auditable code.System architecture: Design a scalable, HDS-compliant infrastructure on AWS (using CDK/Terraform) capable of handling ten times the current load without requiring rework. Ensure strict adherence to HDS and GDPR regulations with robust security practices.Engineering culture: Facilitate team rituals, maintain high standards, and mentor through code reviews and specification assessments.Lead engineering rituals and foster continuous improvement through Agile methodologies and cross-team collaboration, ensuring the team remains at the forefront of excellence.About youYou are passionate...

At Joko, we empower consumers to shop smarter. Our mission is to transform the shopping experience, enabling individuals to discover exactly what they need, make informed choices, and save money.Established in Paris, Joko is a certified B Corp tech company with a diverse team of over 90 talented individuals across Paris, Barcelona, New York, and beyond. More than 5 million users benefit from our services daily at over 10,000 merchants.From cashback and automatic coupons to price alerts and carbon tracking, we continuously enhance our offerings to make shopping more intelligent. Currently, we are developing an AI-driven shopping assistant to help users identify the best products based on price, quality, and sustainability.With profitability achieved in our core market, we are now focused on scaling our operations globally, particularly in the United States.Join us on this exciting journey and help shape the future of shopping! Our Engineering TeamOur Engineering team thrives on tackling advanced technical challenges with innovative solutions. Committed to product innovation and design, they are defining the future of the shopping experience. Their goal is to positively influence the daily lives of millions of users around the globe.Software Engineers collaborate closely with the Product team, engaging in exploration, design, roadmap prioritization, implementation, and production deployment. We’ve seen that teams with engineers who have diverse skills and foster close collaboration with product teams can deliver exceptional and innovative user experiences.As our Engineering team expands rapidly, we are dedicated to innovating across all areas of our product and tech stack, empowering a revolution in online shopping. Your ResponsibilitiesAs we scale to over half a million active daily users with zero-downtime expectations, you, as our Senior Staff Platform Engineer, will spearhead and shape our platform initiatives. You will be our pioneering senior engineer in this domain, consolidating current efforts across the team into a structured, reliable, and high-impact platform that accelerates safe shipping.Infrastructure: Enhance our production infrastructure to ensure it is scalable and resilient, focusing on runtime reliability, capacity, and failure management, allowing us to grow swiftly while maintaining stability.Monitoring & Alerting: Develop top-tier observability systems to ensure proactive monitoring and alerting, significantly enhancing our operational capabilities.

Join our dynamic team at amo as a Location Platform Engineer, where you will play a crucial role in developing and enhancing the infrastructure that efficiently retrieves and processes background location data across diverse devices and operating systems. This position provides an exciting opportunity to work on scalable production systems while ensuring battery efficiency, adhering to privacy standards, and maintaining OS compatibility.We are looking to bring on board several engineers with varying levels of experience. Kindly specify your years of experience in the application form.If you are a seasoned engineer: You will take the helm of the location platform, evolving our technological stack to meet new challenges, mentoring junior team members, and spearheading enhancements in accuracy, efficiency, and compliance.If you are a junior engineer: You will contribute under mentorship, gaining invaluable hands-on experience with production systems, learning cross-platform infrastructure, and developing core skills in backend and client-side development.Your daily responsibilities will encompass:Develop and sustain backend services using Rust alongside client-side codebases in Rust, Kotlin, and Swift.Contribute to systems that manage high traffic and substantial volumes of location data.Enhance scalability, reliability, and performance, both independently and under guidance based on your experience level.Cross-Platform ConsistencyBolster infrastructure that supports both iPhone and Android devices, accommodating various OS versions and OEM variants.Collaborate with iOS and Android engineers to ensure a cohesive and seamless user experience.Feature DevelopmentImplement and optimize the collection of location data through Wi-Fi, network signals, GPS, and Bluetooth technologies.Adapt to evolving OS updates and privacy regulations, balancing precision with battery efficiency.Assist in the development of internal tools, including analytics dashboards, debugging utilities, and user-specific analysis tools.Operational ExcellenceMonitor system metrics, troubleshoot bugs, and proactively resolve performance issues.Ensure adherence to privacy regulations and OS standards.Cultivate robust engineering practices in testing, observability, and documentation.Commitment to Ongoing LearningEngage in continuous improvement and stay updated with technological advancements.

Dashlane seeks a Staff Platform Engineer - Web to join the Paris team. This position focuses on building and maintaining the core web platform, with an emphasis on performance and user experience. Role overview The Staff Platform Engineer - Web will play a key part in shaping development processes and setting technical direction for web projects. The work centers on delivering secure, efficient solutions that support Dashlane’s standards for quality and reliability. What you will do Lead efforts to improve and maintain the web platform Guide development teams with technical expertise Focus on optimizing performance and user experience Who we’re looking for Experience building and maintaining web platforms Strong interest in technology and user-focused design Enjoys working collaboratively and sharing knowledge Brings innovative ideas to technical challenges

Speechify is looking for a Software Engineer, Platform based in Paris, France. This position centers on developing and enhancing features for the company’s text-to-speech platform. Role overview The main goal is to design and build new capabilities that make Speechify’s platform stronger and more reliable. Work will directly support a better experience for users worldwide. What you will do Create and implement new features for the text-to-speech platform Contribute to projects that improve user experience for a global audience Location This role is based in Paris, France.

About UsAt Ankorstore, we're dedicated to empowering independent brands and retailers by streamlining the wholesale process, making it easier, quicker, and more profitable for all involved.Our aim is to create a robust infrastructure that supports contemporary wholesale practices for brands—from enhancing visibility among suitable retailers to managing orders, logistics, and financing—enabling both parties to collaborate on more sustainable terms.The role of Lead Data Platform Engineer is essential to our mission, overseeing the architecture, reliability, and strategic evolution of our data infrastructure.You will spearhead a diverse team of Data Engineers and Analytics Engineers to develop a state-of-the-art Modern Data Stack. Your objective is to connect raw infrastructure with business intelligence, ensuring efficient data ingestion and transformation using BigQuery, Airflow, and dbt, while also facilitating actionable insights through advanced visualizations in Sigma Computing and product analytics in Amplitude.

Join Waniwani as a Founding Platform Engineer and revolutionize our infrastructure for seamless scalability.We have pioneered the first insurance application integrated with ChatGPT. Today, numerous companies are eager to leverage our platform to establish their own AI-driven storefronts. Each client requires a dedicated MCP server, a unique codebase, and tailored distribution, all functioning seamlessly and interconnected under your management.About WaniwaniWaniwani is at the forefront of creating the AI distribution framework for the $10 trillion services economy. Our platform empowers businesses to offer quote-based services such as insurance and wealth management directly within LLMs, where consumer purchasing decisions are increasingly shifting. Imagine Shopify, but tailored for services — we are constructing the foundation for AI-native commerce.We are just beginning this transformative journey. Our launch of ChatGPT insurance resulted in a staggering $26 billion in market cap losses for major brokers within just 48 hours, marking what the press has dubbed "the industry's ChatGPT moment." We refer to it as Day 1.Why This Position MattersHaving surpassed the proof of concept stage, our product is operational. We are now tasked with managing this for hundreds of clients simultaneously, each with its own MCP server, distinct data pipelines, and customized distribution dashboards, all while ensuring the platform remains robust and responsive.This role presents a systems-level engineering challenge. You will be responsible for architecting a solution that allows Waniwani to expand from dozens to thousands of deployments. This includes multi-tenant infrastructure, orchestration of multiple codebases, and real-time data flow across a multitude of interconnected services. In this role, a single flawed abstraction can cost months, whereas a well-designed one can save years.We anticipate that AI will write 95% of your code. Your expertise will not lie in typing code but in discerning what needs to be built, how to structure it, and when the AI may be misguided. You will work at a pace that integrates LLMs as a fundamental aspect of your engineering process, rather than viewing them as a novelty. The key challenge will be exercising judgment, not merely keystrokes.

Join our innovative team at Vusion Group SA as a Data Platform Engineer. You will play a pivotal role in designing, developing, and maintaining our data platforms, ensuring high performance and scalability. Collaborate with cross-functional teams to deliver state-of-the-art data solutions that drive business insights and optimize decision-making processes.

About TeadsTeads is a premier omnichannel advertising platform dedicated to delivering impactful results for brand and performance advertisers across multiple screens. We prioritize significant business outcomes by harnessing predictive AI technology to seamlessly connect high-quality media, stunning brand creative, and contextually relevant addressability and measurement. Teads collaborates directly with over 10,000 publishers and 20,000 advertisers worldwide. Our headquarters are located in New York, with a global workforce of around 1,700 individuals across more than 30 countries.For further details, visit www.teads.com.Our Main Engineering Challenges at TeadsDevelop efficient and user-friendly web products utilized by thousands of users from the world's top publishers, advertisers, and agencies.Leverage a rich and diverse tech stack and system architecture to enhance performance, scalability, resilience, and cost efficiency, primarily using Scala and TypeScript.Operate in a high-traffic environment (2.2 billion users monthly, 100 billion events daily) with stringent low latency and high availability requirements (2 million requests per second, responses under 150 milliseconds).Manage large datasets with millisecond access times to compute a near real-time complex auction resolution algorithm (18 million predictions per second).Thrive in a fast-paced environment where we regularly collaborate with Product teams and adapt our Cloud infrastructure for new features and enhancements.

The AI Platform is at the forefront of Datadog’s AI initiatives, encompassing everything from cutting-edge distributed training infrastructure for our state-of-the-art models to the essential frameworks that power Bits AI and LLMObs. We are on a mission to enhance our offerings beyond just model creation, focusing on the development of tools that will empower engineers to deploy production-ready generative AI systems. This includes creating retrieval-augmented pipelines, autonomous agents, and comprehensive evaluation harnesses.We are seeking a Senior Software Engineer to architect and develop this next-generation platform. You will collaborate closely with the Applied AI, product, and core infrastructure teams to deliver:Large-scale experimentation, training, deployment, and monitoring solutionsDeveloper toolchains tailored for agents and other generative AI applicationsLow-latency serving infrastructure that seamlessly integrates AI features into all Datadog productsAt Datadog, we value a vibrant office culture that fosters relationships, sparks creativity, and encourages collaboration. We operate in a hybrid work environment, allowing our employees to achieve a work-life balance that suits their individual needs.

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

Join VeepeeTech as a Site Reliability Engineer (SRE) and become an integral part of a dynamic and cross-functional SRE community while collaborating with a product-focused Data Platform team.In your role, you will enhance the reliability, scalability, and operability of essential data services by leveraging SRE and DevOps methodologies. You will also play a vital role in knowledge sharing across various teams.Our Data Platform is evolving into a cutting-edge lakehouse architecture hosted on VeepeeCloud (our proprietary on-premise platform), utilizing advanced technologies such as Trino, Iceberg, and object storage, with ambitious goals related to performance, cost efficiency, and platform stewardship.You will work in a distributed environment across France and Spain, alongside a talented team of 40-50 data professionals specializing in engineering, analytics, data science, and governance.As a key contributor, you will ensure the reliability and scalability of our next-generation data platform while supporting the transition from public cloud to hybrid and on-premise architectures.

Join our team as a Platform Engineer / Site Reliability Engineer (SRE) in Paris, where you will play a pivotal role in maintaining and enhancing our platform infrastructure. You will work alongside a talented team of engineers to ensure the reliability, scalability, and performance of our systems. Your expertise in cloud technologies, automation, and monitoring will be essential in driving continuous improvements and delivering high-quality services.

We are seeking a talented and experienced Senior Platform Engineer specializing in AWS to join our dynamic team at Devoteam. In this role, you will leverage your extensive knowledge of cloud technologies to deliver innovative solutions that help our clients achieve their business objectives.Your responsibilities will include designing, implementing, and managing cloud infrastructure projects, providing expert guidance on AWS services, and collaborating with cross-functional teams to optimize cloud operations.

Location: Flexible (Paris Issy-les-Moulineaux). This role provides the opportunity to work from home while being close to an office location. The Role As a Senior Cross-Platform Software Engineer at GoPro, you will play a pivotal role in enhancing and sustaining the core software that powers GoPro’s software ecosystem. You will be tasked with developing and refining software and tools that are utilized in mobile applications, desktop software, the GoPro cloud, and GoPro cameras. We are looking for a candidate with expertise across multiple platforms, programming languages, tools, and build systems who thrives in an agile software development environment. In this position, you will create high-quality, thoroughly tested libraries and tools that are compatible across various platforms. Collaborating with platform-specific teams, you will integrate these libraries and tools to construct a unified software ecosystem designed to help users capture and cherish their most treasured photo and video moments. What You Will Do Design, build, test, and maintain cross-platform software for client application development teams. Engage with a diverse array of platforms (desktop, mobile, cloud, embedded). Explore various domains, including media file format support, graphics programming, AI integration, platform abstractions, and algorithm development. Continuously enhance the quality and reliability of the code. Advance the software engineering system for improved software management, integration, and build processes. Skills We’re Excited About Bachelor's degree in Computer Science, Engineering, or a relevant field. 3-5 years of experience in cross-platform software development using C++ and at least one additional programming language. Excellent communication skills, both written and verbal. Bonus Points For Proficiency in modern C++ (C++11 and newer). Familiarity with the CMake build system. Experience developing libraries and applications for Windows, macOS, Linux, iOS, and Android. Strong skills in git, including GitHub Actions. Proficiency in Java, Kotlin, Swift, Objective-C, C#, and Python. Experience with Xcode, Visual Studio, and Android Studio. Background in working with photo, video, or audio media. A passion for photography and videography. Why Work With Us?

sia is looking for a DevOps / Platform Engineer to join the team in Paris. This position centers on building and maintaining infrastructure that supports the company’s products and services. The work involves close collaboration with colleagues to ensure systems can scale as the business expands. Key responsibilities Work with engineers and stakeholders to support and improve core infrastructure Contribute to building stable systems that can handle company growth Develop solutions that help keep services reliable and available Who will thrive here This role fits someone early in their DevOps career, interested in learning from experienced professionals and gaining practical experience in a growing field. Location This position is based in Paris.

Role overview Alten is seeking a Data Engineer with strong experience in Google Cloud Platform (GCP) to join the Paris office. The position centers on shaping and optimizing data architecture and engineering solutions. Teamwork with professionals from various backgrounds is a key part of daily work. What you will do Design, build, and enhance data pipelines using Google Cloud Platform tools Collaborate with cross-functional teams to deliver dependable data solutions Support the availability of high-quality data for analysis and business needs Project environment Assignments use current technologies and encourage fresh thinking and practical solutions. The team emphasizes both innovation and effective problem-solving in its approach.

About UsSafran.AI, formerly known as Preligens, is a subsidiary of Safran Electronics & Defense, specializing in artificial intelligence solutions for analyzing high-resolution satellite imagery, full-motion video streams, and acoustic signals. Our innovative solutions cater to the aerospace, defense, and governmental applications.Since 2016, we have been developing complex algorithms and software that enable the automatic analysis, detection, and identification of military-relevant objects from both commercial and governmental data sources.Following our integration into Safran in September 2024, Safran.AI also plays a pivotal role in transforming the group by applying AI solutions to Industry 4.0 domains. For instance, our automated image analysis capabilities assist inspectors in identifying potential anomalies in critical components using digital images.At Safran.AI, innovation and the quest for a safer world are at the core of our mission. By joining us, you'll collaborate with multidisciplinary teams of passionate engineers, researchers, and developers who share a common drive for technological excellence. We foster a stimulating work environment that encourages creativity and initiative, where every idea is valued. Your Mission, Should You Choose to Accept ItThe AI Engineering team is responsible for developing and operating an internal AI production platform, essentially our very own AI Factory, utilized by Data Scientists to design, train, and deploy models at scale.The platform, originally focused on satellite image processing, is now entering a new phase characterized by:→ Diversification of data types (video, acoustic, factory imaging)→ Significant growth in the number of production models→ Increased requirements for robustness, security, and operability→ Expansion of use cases in air-gapped environments and across multiple sitesIn this context, we are evolving our approach towards a comprehensive Data Platform & ML Platform capable of supporting these diverse uses, hybrid environments, and stringent industrialization constraints.The team comprises about twenty engineers with hybrid AI, Software, and Data profiles, organized into three squads: MLOps platform, Data platform, and Enabling & DevX.