Staff Platform Engineer - Web

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.

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...

Role overview QIMA seeks a Senior Manager of Data & Web Engineering based in Paris. This position leads a team dedicated to developing and enhancing platforms that drive marketing and customer engagement. The work centers on both data and web engineering, with a focus on supporting business growth and outreach. Key responsibilities Guide and mentor a team handling data and web engineering initiatives. Collaborate with other departments to ensure technical solutions fit business goals. Supervise the development and improvement of scalable data infrastructure. Contribute to web technology projects that advance marketing efforts and customer connections. Collaboration This position works closely with cross-functional teams, making sure technical systems support company needs and can adapt as the business evolves.

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.

About Mistral AIAt Mistral AI, we harness the transformative potential of artificial intelligence to streamline tasks, conserve time, and foster creativity and learning. Our technology is engineered for seamless integration into everyday workflows.Our mission is to democratize AI through high-performance, optimized, and open-source models and solutions tailored for enterprises, whether on-premises or in the cloud. Among our offerings is le Chat, an AI assistant designed to enhance both personal and professional life.We pride ourselves on being a vibrant, collaborative team, united by our passion for AI and its capability to revolutionize society. Our diverse workforce excels in competitive environments and is dedicated to driving innovation. Our teams are spread across France, the USA, the UK, Germany, and Singapore, characterized by creativity, humility, and a strong team spirit.Join us in shaping the future of AI at Mistral, where your contributions can lead to significant societal impact. Discover more about our culture at https://mistral.ai/careers.

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, with over 20% of the world's crypto assets safeguarded through Ledger devices, we have established a strong presence not only in Paris, where our headquarters is located, but also across multiple international offices. Our diverse team of around 600 professionals develops cutting-edge products and services that allow individuals and businesses to seamlessly buy, store, swap, and manage their crypto assets, including our acclaimed hardware wallets, which have reached over 7.5 million units sold in 200 countries.We are currently on the lookout for a seasoned Director of Platform Engineering to lead our Platform Engineering team within the Infrastructure & Operations department. Reporting directly to the VP of Infrastructure & Operations, this pivotal role involves overseeing the development and maintenance of our cloud infrastructure, as well as enhancing developer platforms and tools. The ideal candidate will possess a robust technical foundation, outstanding leadership capabilities, and a genuine enthusiasm for creating resilient, scalable platform services while ensuring the reliability of production infrastructure.Key Responsibilities:Formulate and implement the platform engineering strategy in alignment with business objectives and Infrastructure & Operations goals.Lead and inspire the Platform Engineering team to achieve high performance.Establish and enforce best practices, standards, and architectural guidelines for platform services and production cloud infrastructure.Collaborate with engineering leadership and Infrastructure & Operations teams to define the requirements for platform and production systems.Serve as the ultimate escalation point for complex platform engineering challenges that exceed Level 2 operations support.

Join amo as one of the pioneering members of our Web Engineering team. In your initial months, you will collaborate closely with the team to develop and manage the systems that drive our operations, analytics, and distribution. We seek adaptable engineers who are eager to take ownership of comprehensive components, from architecture and implementation to monitoring.We prioritize engineers who delve deep into their work, cultivating strong domain expertise and fully embracing the responsibilities of their role. Your contributions will be vital in scaling our web stack, enhancing our internal product philosophy, and accelerating the company’s growth and learning.At amo, our Web team constructs the foundation of our internal platform: from Backoffice tools and growth dashboards to experimentation systems and invite-page infrastructure, as well as analytics implementation and the UI and backend layers that empower other teams to function effectively.Your Daily Responsibilities as a Web Engineer Include:Developing Internal Tools & Backoffice SystemsCrafting internal platforms for data access, monitoring, and operational workflows, collaborating directly with internal users to identify their needs and challenges, translating these insights into scalable, well-engineered solutions that integrate seamlessly into our stack.Managing Growth & Distribution InfrastructureBuilding systems for growth levers, managing distribution flows, and facilitating tracking for acquisition, activation, and retention, including invite pages enriched with OG metadata.Orchestrating SegmentationUtilizing our workflow orchestration system (Restate) to design robust, event-driven workflows that bolster growth mechanisms, data processing, segmentation logic, and lifecycle automation across the platform.Creating Metrics Dashboards & Data VisualizationsDeveloping real-time dashboards that convert metrics into actionable insights for the team.(Optional) AI-Driven AutomationContributing to AI/LLM-powered pipelines for scalable content and metadata generation, delivery, and publishing, with systems that adapt and improve based on performance and/or manual evaluation.End-to-End OwnershipTaking complete ownership of projects from inception to deployment, ensuring quality and efficiency at every stage.

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 H:At H, we are at the forefront of advancing superintelligence through agentic AI. Our mission is to automate intricate, multi-step tasks that are traditionally handled by humans, enabling AI agents to unlock the full potential of human capabilities.We are on the lookout for the brightest minds in AI, those who are as committed to building responsibly and safely as they are to pioneering groundbreaking agentic functionalities. We foster a culture of openness, continuous learning, and collaboration, where every team member's contribution is valued.About the Team:The Product Engineering Team plays a critical role in the successful deployment and management of our Agents and Inference platforms, alongside auxiliary services that support our Research department and lay the groundwork for innovative agentic products and services that we offer to the market.Key Responsibilities:Lead the definition of technical architecture, design, and long-term engineering strategy.Design, develop, and maintain complex, high-performance, scalable systems.Mentor and guide engineers across various teams to foster a culture of technical excellence.Perform comprehensive code and design reviews to ensure adherence to quality and security best practices.Collaborate with Research, Engineering, and stakeholders to deliver impactful solutions.Drive enhancements in system reliability, scalability, and observability.Establish and uphold engineering standards, tooling, and processes.Advocate for technical innovation and proactively manage technical debt.

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.

At The Flex, we envision a future where renting a home is as instantaneous, intelligent, and hassle-free as booking a ride.Our ambitious goal is to empower individuals to live anywhere, at any time, without the usual barriers.Driven by our innovative Base360.ai automation platform, we are crafting the ultimate operating system for modern rentals — seamlessly integrating property data, streamlining operations, and facilitating effortless stays worldwide.If you are passionate about web technologies, API-driven solutions, automation, and scalable operations, this is your chance to influence how millions navigate, reside, and engage with the world. What You’ll BuildAs a Full-Stack Engineer (Web & APIs), you will be responsible for designing, developing, and scaling the essential web applications and APIs that drive The Flex platform — enabling immediate bookings, smart access, automated workflows, and predictive operations.Your role will encompass all aspects of frontend design, backend development, and cloud infrastructure, transforming intricate operational hurdles into elegant, scalable, and API-centric solutions.You won’t merely deploy features.You will enhance efficiency, unlock automation, and lay the groundwork for a sophisticated, global rental network. Your MissionBuild the PlatformCreate fast, dependable, and scalable web applications and APIs that facilitate bookings, payments, availability, and guest interactions.Design API-First SystemsDevelop robust, well-documented APIs that connect Base360.ai to internal systems and external partners.Automate at ScaleConstruct event-driven services and automated workflows to eradicate manual processes across the organization.Connect the EcosystemImplement impactful integrations with partners including Airbnb, Stripe, Hostaway, and Twilio.Deploy with ConfidenceLaunch and maintain serverless infrastructure on AWS, optimized for speed, reliability, and global reach.Solve Real ProblemsAddress challenges such as real-time booking synchronization, pricing intelligence, keyless access systems, AI-driven alerts, and live operational dashboards.Build With PurposeWork closely with product, data, and operations teams to transform concepts into tangible, measurable outcomes.

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 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 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 OUR TEAMWith nearly 40 members across various disciplines including Backend, Frontend, iOS, Android, DevOps, Product, UX/UI, and QA, our Tech team at Cheerz is committed to developing, testing, and deploying features that engage hundreds of thousands of users throughout Europe. Our apps and website allow customers to customize their photo products, creating unique, personalized, and memorable keepsakes.The development team operates across four platforms: backend, web, iOS, and Android, each ensuring technical integrity. Developers work within autonomous, multidisciplinary agile squads.As an Engineering Manager for Frontend Web at Cheerz, you will report directly to the CTO. You will lead a team of web developers and be part of the "Product Trio" within a squad, collaborating closely with Product Managers and Product Designers.You will thrive in a collaborative environment where bridging expertise is essential: you will connect developers, especially with Staff Engineers, the Product team, and other stakeholders at Cheerz. Your input will be vital in making strategic decisions that influence your domain and help shape Cheerz's engineering culture.Your key responsibilities will include:Technical Excellence and Vision- Ensure software quality and scalability of your area of expertise. Facilitate the adoption of best practices, standards, and architectural decisions.- Collaborate with Staff Engineers and the CTO to co-develop the technical roadmap.- Identify and lead major technical initiatives (architecture redesign, technical debt reduction, performance optimization).- Support change management and resolve resistance issues.Management and Delivery- Co-manage with the Product Trio the delivery of features and product initiatives.- Plan sprints and prioritize the technical roadmap.- Allocate resources and track project progress.- Maximize team efficiency and foster a positive work culture.

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.