Senior Backend Engineer - Core Components (Remote in France)

Join Dailymotion as a Senior Backend Engineer and play a pivotal role in developing our core components. In this fully remote position, you will work collaboratively with cross-functional teams to design, build, and maintain scalable backend systems that power our video platform.

About UsAt Yubo, we are revolutionizing the way individuals connect online through our innovative Social Discovery app. By removing likes and follows, we empower our users to form authentic relationships and express their true selves.We have pioneered a fresh approach for Generation Z to engage socially in the digital realm, currently serving millions of active users. Our mission is to continuously redefine how social connections are formed now and in the future.Our team is diverse, multicultural, and passionately dedicated to our vision. As a leading platform for online socialization, we prioritize creating a safe digital environment for our community. Safety is ingrained in our values, and we proactively work on user protection, support, and education, collaborating with the tech industry and NGOs to establish best-in-class child protection standards.Join us on this exciting journey and play a vital role in shaping the future of social interactions!Role OverviewAs we expand our Tech organization for 2026, Yubo is launching a new Innovate squad dedicated to daring product initiatives and high-stakes projects.This squad aims to take bold risks, experiment with ambitious features, and validate ideas through ongoing testing.We are seeking a Senior Backend Engineer to become a key member of our Backend Experience team, reporting directly to Armand, our Engineering Manager.You will work within a multi-disciplinary squad (including Product, Mobile, Design, and Data) alongside a Senior Backend Engineer who shares leadership responsibilities.Your mission? Design, implement, and manage high-risk backend experiments that test groundbreaking product ideas while ensuring our systems remain resilient, scalable, and cost-effective throughout rapid iteration cycles.This position is not about maintenance; it's focused on building, testing, rolling back, iterating, and learning swiftly.

About Us and Our Vision: At Qonto, we empower small and medium enterprises (SMEs) to thrive by providing Europe’s premier finance platform, which integrates banking and innovative financial tools. Our commitment to excellence is reflected in our 4.8-star rating on Trustpilot, based on over 55,000 reviews. We prioritize customer satisfaction, evidenced by our impressive Net Promoter Score of 75.Our Growth Story: Founded in 2017 by Alexandre and Steve, Qonto has expanded to a team of over 1,600 dedicated professionals, catering to more than 600,000 customers across 8 European nations. With profitability achieved in 2023, we are just beginning our journey.Our Core Values: We value skills and potential in our hiring process. Our team boasts over 80 nationalities, with 45% women and 56% of our leadership positions held by women, making diversity an integral part of our identity. We have established a bias-free hiring process because we believe the best teams are formed on merit.AI at Qonto: Artificial Intelligence is fundamental to our operations (learn more). Every member of our team has unlimited access to cutting-edge AI tools. We seek individuals who are willing to experiment, challenge norms, and understand when to trust and question AI.

Role Overview Quadient is looking for a Full Stack Software Engineer to join the Research & Development team in Paris. This position focuses on building and improving software that strengthens our product lineup and supports customer needs. Collaboration with colleagues from different specialties is a key part of the job. Main Responsibilities Design and develop scalable web applications. Work alongside UX/UI designers to shape user-friendly interfaces. Take part in code reviews and help uphold strong coding standards. Join Agile ceremonies and contribute to project planning and delivery.

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 Speechify as a Senior Software Engineer focusing on Windows/Desktop applications in the vibrant city of Paris. In this role, you will be instrumental in designing, developing, and maintaining high-quality software solutions that redefine how users interact with text and audio. Your expertise will guide our team in implementing innovative features that enhance user experience and drive our mission forward.

Join us in revolutionizing the shopping experience through AI-powered conversations.At Gorgias, we are pioneering a platform that transforms customer interactions into meaningful relationships. Our vision is to create a unified AI agent that assists, sells, and re-engages customers at every touchpoint in their journey. We believe that Conversational Commerce is the future of eCommerce, and we are at the forefront of this exciting shift.Our mission is to ensure that every brand interaction is personal, seamless, and intelligent. By merging our extensive product knowledge with cutting-edge AI technology, we aim to make the shopping experience feel increasingly intuitive and connected.To achieve this, we are committed to:Quality: Crafting authentic, brand-aligned conversations.Experience: Ensuring a smooth shopping journey from chat to checkout.Re-engagement: Fostering personal dialogues instead of intrusive marketing.With the rapid evolution of AI in retail, Gorgias is laying the groundwork for the next decade of eCommerce. We envision a future where every brand has its intelligent agent, and every customer feels valued and understood.Join us in making Conversational Commerce a reality.Team & ContextGorgias is an AI-first company dedicated to developing innovative products driven by large language models (LLMs) and agent-based systems. We are the leading conversational commerce platform for Shopify merchants. Our AI Journey team is focused on enhancing the marketing aspect of our vision with AI-driven outbound conversations that engage shoppers through various channels, primarily SMS.Our product is actively utilized by merchants today, processing hundreds of millions of shopper events. We are scaling our operations to enhance AI reliability at higher volumes, broaden our shopper engagement capabilities, and solidify our systems for robust production loads. The most intriguing challenges lie ahead.This role is positioned at the nexus of product engineering and applied AI, concentrating on the development of reliable, scalable, and impactful LLM-powered experiences in production.About the RoleIn this role, you will have the opportunity to: Develop and scale production AI features utilized by thousands of merchants. Engage directly with LLMs, prompts, and agent workflows within a live product setting. Influence the architecture of AI systems as we continuously enhance our platform.

nabla is looking for a Senior Front-End Engineer with deep experience in React to join the Paris office. This position centers on building web applications that are both dynamic and user-friendly, with a strong focus on delivering a polished user experience. Role overview Work closely with colleagues across disciplines to design, develop, and refine the front-end architecture. The goal is to ensure applications remain fast, responsive, and reliable. Day-to-day, expect to collaborate with product and design teams to translate ideas into seamless interfaces. What you will do Develop and optimize React-based web applications for performance and usability Work with cross-functional teams to implement new features and improvements Guide junior developers and help set coding standards, testing procedures, and deployment practices Impact This role shapes the quality of nabla’s products and directly influences customer satisfaction. Senior engineers here play a key part in mentoring others and establishing best practices across the front-end team.

Join IFS Copperleaf, where our innovative software empowers some of the largest companies worldwide to make informed strategic decisions. We pride ourselves on delivering award-winning and transformative solutions that support our clients in creating resilient and sustainable infrastructure.With our expanding presence in the Asset Intensive Market across Europe, we are seeking a dynamic Account Executive to spearhead the development and execution of our market sales strategy in France. Region & Language:The ideal candidate will be based in France, working remotely from their home city while managing sales for targeted accounts in the region. Proficiency in both French and English is essential. Key Responsibilities:As an Account Executive at IFS Copperleaf, you will lead the identification and qualification of sales opportunities while executing account strategies that drive revenue from licenses, support, and services.Your role encompasses building and nurturing strong relationships with customers, measured through their satisfaction, referenceability, revenue growth, and overall account engagement.Your responsibilities include:Identifying, pursuing, and closing new sales opportunities by effectively executing the sales process.Engaging with prospective clients and stakeholders to develop relationships with key decision-makers at the executive level.Collaborating with the broader IFS Copperleaf team (Technical Sales, Sales Leadership, Marketing, etc.) to understand prospects' business practices and strategic drivers, identifying pain points, and crafting solutions to address these challenges.Continuously gathering insights on competitors to effectively position our solutions.Driving a sales process that showcases our solutions as a strategic advantage for the prospect.Regularly discussing and communicating opportunity plans and sales strategies with account team members and management.Maintaining an accurate and documented pipeline of opportunities within CRM.Attending industry events and conferences, providing insights on market trends and creative innovations.

Are you a talented Designer, Developer, Product Owner, Business Analyst, Architect, Digital Marketing Specialist, or QA Engineer? Ahead Digital, a leading agency specializing in digital strategy with offices in Brussels and Paris, is constantly on the lookout for exceptional profiles to join our vibrant team. If you're passionate about shaping the future of digital experiences and eager to contribute to innovative projects, we invite you to submit your CV for potential opportunities!

Join aircall, a pioneering unicorn in the realm of AI-driven customer communication platforms, utilized by over 22,000 companies globally to enhance revenue, expedite issue resolution, and effectively scale customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is fueled by a straightforward principle: empower teams to work smarter, not harder. Our innovative AI Voice Agent automates routine calls, AI Assist optimizes post-call tasks, and AI Assist Pro provides real-time guidance, enabling individuals to perform at their best. This results in increased revenue, quicker resolutions, and teams that expand confidently.Based in Paris, our European headquarters, we have a robust North American presence in Seattle and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and our business is rapidly expanding, supported by top-tier investors and driven by swift AI innovations across various product lines.Our Work Culture: At aircall, we prioritize customer satisfaction, data-driven decision-making, and delivering significant outcomes. We value ownership, continuous learning, and thoughtful speed. If you excel in a collaborative, dynamic setting where trust and impact are paramount, you will thrive here.We are in search of a dedicated and enthusiastic Senior AI Software Engineer to join our expanding engineering team.In this role, you will oversee the design, development, deployment, and operation of AI-driven features that enhance customer value. Your daily responsibilities will encompass operational excellence, metrics, observability, best practices, and mentoring within your team and across the engineering department.We are committed to quality, excellence, and agility in our delivery processes, and you will play a key role in elevating these standards. Utilizing NodeJS and TypeScript back-end technologies, suitable for each requirement, and always hosted on AWS, we create valuable and resilient services built on voice technology that seamlessly integrate with our customers' essential business tools (CRM, Helpdesk, E-Commerce, etc.).

About INFINIT:Founded in 2023, INFINIT is a dynamic fintech scale-up that is swiftly expanding its presence across Europe and the Americas.Our mission is to transform the future of small and medium-sized enterprises (SMEs) by placing artificial intelligence at the heart of our innovative all-in-one operating system. With banking as a foundational element, we empower small business owners and their teams to efficiently manage and enhance every facet of their operations using AI-driven solutions.By focusing on niche industries, INFINIT offers bespoke, high-value solutions while developing cutting-edge AI products that unlock substantial growth prospects for our clientele. Our global operations are poised for expansion as we aim to redefine the fintech landscape for SMEs around the world.Join us on our journey to revolutionize the SME economy and create a significant impact through innovation Position Overview:We are seeking a passionate and skilled Full Stack Software Engineer to lead our product development initiatives. This role operates on the principle that exceptional engineers do more than just code; they create impactful solutions that meet business needs. Your main task will be to connect business objectives with technical execution, translating broad goals into well-crafted, deployable features.In this role, you will be required to evaluate project requirements, adopt a product-centric approach within the engineering team, and ensure that each line of code delivers real value. The position necessitates strong software engineering skills combined with keen product insight to prioritize and implement high-impact features in a fast-paced environment.

Join Our Innovative Team at ZefirZefir is revolutionizing the real estate landscape in Europe with our cutting-edge AI autopilot for home sales. Based in Paris, we are on a mission to streamline the entire sale and purchase journey, connecting local brokers, buyers, and essential documentation with our advanced AI technology.With over $55 million in funding from prestigious investors like Sequoia Capital, we are dedicated to transforming the lives of millions of existing and future homeowners across Europe.Program Duration: 2 years (with 2 rotations)Program Start Dates: We welcome new cohorts every January and July. About ZefirAs the most dynamic real estate marketplace in Europe, Zefir leverages artificial intelligence to redefine how properties are bought and sold. Our goal is to make transactions twice as fast compared to traditional methods.In just two years, we have achieved over €1 billion in transaction volume and secured more than €50 million from top-tier investors who have backed companies like Apple and Airbnb.Every day, we assist thousands of homeowners in navigating significant life transitions with confidence. The Graduate Sales Program: An Accelerated Path to Sales ManagementOur Graduate Program is a fast-tracked, two-step journey designed to mold exceptional talent into future team leaders. Over the course of two years, you will have the opportunity to advance through two key roles, supported by intensive coaching, dedicated mentorship, and clear objectives at each stage. You'll gain comprehensive insights into the sales profession, setting you up for a successful career.A new cohort begins every six months (in July and January). Your JourneyStep 1 — Sales Development Representative (SDR) (9 months or longer, based on performance)You will start on the ground floor, focusing on mastering the fundamentals of sales while demonstrating your ability to thrive in a high-volume environment.Handle a substantial volume of calls and appointment scheduling.Develop and refine your sales pitch through direct customer interactions.Learn to qualify prospects and establish a robust sales pipeline.Engage in one hour of continuous training weekly.

Back Market is looking for a Senior Software Engineer focused on Order Management Systems to join the team in Paris. This position centers on developing and refining the platform to support a smooth experience for customers as they place and manage orders. Role overview This engineer will play a key part in building and maintaining scalable software solutions for order management. The work involves collaborating with colleagues from different departments to design, implement, and support features that improve how orders are handled across the platform. What you will do Contribute to the development and optimization of the order management platform Work with cross-functional teams to create and maintain scalable solutions Help ensure a seamless experience for customers managing orders Drive improvements and support ongoing innovation in order management processes Requirements Experience in software engineering, particularly with order management systems Ability to design, implement, and maintain scalable software Strong collaboration skills to work with multiple teams

About VoodooEstablished in 2013, Voodoo stands as a pioneering tech company dedicated to crafting engaging mobile games and applications designed to entertain a global audience. With a robust team of 800 professionals, Voodoo has achieved a staggering 7 billion downloads and boasts over 200 million active users, securing its position as the third-largest mobile publisher worldwide, following Google and Meta. Our impressive portfolio features top-charting games like Mob Control and Block Jam, along with popular applications such as BeReal and Wizz.TeamThe Growth team at Voodoo is a dynamic, cross-functional group committed to maximizing the potential of every mobile product. This team merges expertise in user acquisition, creative content production, monetization, and the technical skills necessary to transform applications into global sensations. With over 150 specialists, we are leaders in mobile marketing and ad tech, adept at various game styles including hypercasual and hybrid.We are excited to welcome our first 3D Unreal Engine Generalist to our high-achieving Creative Marketing team, which focuses on producing high-impact mobile advertisements for our successful titles, particularly Mob Control.RoleAs a 3D Unreal Engine Generalist, you will take charge of creating visually stunning, gameplay-centric 3D ad creatives using Unreal Engine. You will oversee the entire production pipeline, from concept development to final render.Your expertise will be crucial in translating gameplay mechanics, logic, and scene setups between Unity and Unreal Engine, thereby enhancing the creative production workflow.ResponsibilitiesCreate visually striking 3D mobile ad creatives that effectively convey gameplay and enhance performance.Design and animate immersive scenes in Unreal Engine, including characters, environments, VFX, and lighting.Utilize Blueprint scripting and/or C++ to accurately simulate gameplay logic, interactions, and camera behaviors.Adapt and transfer ad concepts, animations, and logic originally developed in Unity to Unreal Engine and vice versa, ensuring high fidelity.Take full ownership of the ad creation process, from ideation and scene setup to rendering and final touches.Incorporate storytelling and visual clarity to spotlight core gameplay loops within 20–30 seconds of ad content.

Join Adlook, a trailblazer in the advertising technology sector, as a Sales Manager. In this pivotal role, you will spearhead revenue growth by strategically engaging with upper-funnel clients and agencies. Leverage Adlook's cutting-edge advertising solutions to foster and maintain essential relationships while driving new business opportunities.

Join Our Mission to Transform Healthcare At Doctolib, we are on a mission to revolutionize the healthcare experience through cutting-edge technology. Our passionate tech team is dedicated to creating innovative products and features that enhance the daily lives of healthcare practitioners and their patients. Working in an agile environment, we collaborate closely with engineering, design, and business teams to achieve our goals. Your Role We are seeking a Senior Software Engineer to become a vital member of our Design System & Accessibility Team. Your contribution will be paramount in making Doctolib the leading digital and secure medical companion for patients. In our Platform domain, we focus on building and maintaining essential building blocks of our system with a "Platform as a Product" mindset. Our objective is to simplify the use of these complex components, allowing product teams to concentrate on their core mission: delivering faster solutions for healthcare professionals and patients. Why Your Work Matters: With a significant 80% of our traffic coming from mobile users, your role will be instrumental in bridging the gap between our Web and Mobile Design Systems, ensuring a seamless user experience across platforms. As part of the Frontend Platform team, you will empower all Doctolib Tech and Product teams to develop accessible, top-tier frontend applications. We achieve this by providing a robust web and mobile design system, creating supportive tooling, and offering guidance as Accessibility experts. Key Responsibilities: Design, build, and maintain a scalable web and mobile Design System using React and React Native to ensure consistent, accessible, and high-performance user experiences. Guide the convergence of Web and Mobile Design Systems, ensuring visual and functional consistency across React and React Native components. Develop and maintain React Native components for a seamless cross-platform experience. Mentor team members on React Native best practices, promoting a mobile-first culture within the Design System team. Collaborate with Product Designers to transform Figma designs into robust, reusable UI components, maintaining visual and functional parity between design and implementation. Advocate for accessibility (A11y), embedding inclusive design principles in our Design System and developing accessible components.

Rattaché(e) à la Direction, vous jouez un rôle clé dans l’expansion de notre offre BIM, en guidant nos clients depuis la phase de prospection jusqu'à la réalisation de projets concrets.Vos responsabilités incluent : Élaborer et mettre en action la stratégie commerciale BIM de l'entreprise.Identifier, prospecter et fidéliser une nouvelle clientèle.Répondre aux appels d'offres publics et privés, tout en rédigeant des propositions techniques et commerciales percutantes.Contribuer à la veille de marché et représenter l'entreprise lors d'événements professionnels.Assurer le suivi des projets et garantir la satisfaction client, en collaboration avec les équipes de production.Encadrer et accompagner les équipes grâce à un management de proximité, favorisant collaboration, écoute et développement des compétences.

About H:At H, we are at the forefront of advancing superintelligence through agentic AI. Our mission is to automate complex, multi-step tasks traditionally performed by humans, empowering individuals to realize their full potential.We are on the lookout for exceptional AI talent who is committed to building technology that is both innovative and responsibly developed. Our culture encourages openness, continuous learning, and collaboration, ensuring that every team member’s voice is valued.About the Team: The Inference team is dedicated to developing and refining the inference stack that powers our cutting-edge agent technology. We prioritize optimizing hardware utilization to achieve high throughput, low latency, and cost-effectiveness, ensuring a smooth user experience.Key Responsibilities:Build scalable, cost-effective inference pipelines with low latency.Enhance model performance focusing on memory usage, throughput, and latency through advanced techniques, including distributed computing, model compression, quantization, and caching.Create specialized GPU kernels for critical tasks, including attention mechanisms and matrix multiplications.Work closely with H's research teams to optimize model architectures for improved inference efficiency.Review and implement insights from state-of-the-art research papers to enhance memory utilization and reduce latency (e.g., Flash Attention, Paged Attention, Continuous Batching).Prioritize and implement leading-edge inference techniques.Requirements:Technical Skills:Master's or PhD in Computer Science, Machine Learning, or a related field.Proficiency in at least one programming language: Python, Rust, or C/C++.Experience in GPU programming, including CUDA, OpenAI Triton, or Metal.Familiarity with model compression and quantization techniques.Soft Skills:A collaborative mindset, thriving in dynamic and multidisciplinary teams.Excellent communication and presentation skills.A passion for exploring new challenges.Bonuses:Experience in related fields and a passion for AI advancements could be advantageous.

About H:At H, we are on a mission to redefine the landscape of superintelligence through innovative agentic AI. Our goal is to automate intricate, multi-step processes traditionally executed by humans, thereby unleashing the full potential of human capabilities.We are actively seeking the brightest minds in AI—passionate individuals who prioritize safe and responsible development alongside pioneering agentic technologies. Our culture fosters openness, continuous learning, and collaboration, encouraging contributions from everyone.Location:Paris or London.This position offers a hybrid working model, requiring attendance in the office approximately 3 days a week.Expect periodic travel between our offices on a reasonable schedule (e.g., every 4-6 weeks).What We Offer:Be part of the pioneering journey in shaping the future of AI and contribute to the early stages of one of the most promising AI startups.Collaborate with a vibrant, diverse, and multicultural team, working alongside leading AI professionals in a highly collaborative atmosphere.Receive a competitive salary.Unlock pathways for professional advancement, continuous education, and career development.If you are ready to revolutionize the AI landscape, we invite you to join us.