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Python, Pandas, pytest, SQLAlchemy, Alembic, Flask, Dataiku, Apache Airflow, Azure DevOps, Amazon S3, Athena, PostgreSQL, Typescript, React.

Pour l'un de nos clients grands comptes, nous recherchons un(e) DBA SQL Server orienté(e) production. Amazon RDS / Aurora SQL Server. Azure SQL Database, Managed Instance, Synapse, Data Factory.

Who are they? What if advertising strategies were more profitable for both ad players and consumers? Happydemics empowers advertising players worldwide to precisely measure the ROI of their campaigns. Utilizing a unified methodology and cutting-edge technologies, we streamline performance measurement and campaign optimization. As the trusted partner of thousands of players globally, our SaaS delivers key analytics in a privacy-friendly environment, setting a new standard in advertising effectiveness. As we enter a phase of strong growth, we are looking for a Head of Publisher to: • Lead the partnership strategy with publishers, • Maximize the integration and certification of the Happydemics solution on the supply side, • Create a dedicated data offering for publishers Responsibilities In close collaboration with the Trading, Sales, Product, and Tech teams, your main responsibilities will be: Certification & Partnerships • Identify and implement data-sharing solutions with key CTV and Audio publishers, and explore privacy-compliant measurement partnerships with major walled garden platforms (Meta, TikTok, Snap, YouTube, Amazon), where direct pixel integration is restricted, • Establish and grow strategic partnerships with publishers to increase adoption of our solution, • Identify environments where direct pixel implementation is not feasible and propose alternatives (server-to-server, clean rooms, third-party integrations), • Stay up-to-date with the landscape of universal ID solutions (e.g., UID2, RampID, ID5, First ID…) and collaborate with internal teams to ensure interoperability and measurement capabilities in cookie-constrained environments, • Collaborate with technical and legal teams to structure data exchanges in compliance with regulations (GDPR, CCPA, TCF, GPP...), • Participate in drafting contractual clauses governing data flows Qualification Inventory • Lead the Qualification Inventory project:, • Identify partner clients for the testing phase, • Define a clear, viable, and scalable business model with the Finance, Sales, and Product teams, • Coordinate Product, Sales, and Tech teams to support the global launch of the solution, including its dynamic components (e.g., DCO API), • Define scoring and media qualification criteria This project is the foundation of a broader initiative: the native integration of our technology within prebid environments, a strategic milestone for Happydemics in the medium term. Profile • At least 5 years of experience in the programmatic, SSP, or data tech ecosystem, • Strong network among premium CTV / Audio / In-app publishers and walled gardens (Meta, Amazon, YouTube...), • Deep understanding of data, privacy, ID solutions, and advertising measurement, • Proven experience managing complex cross-functional projects (legal, technical), • Strong skills in business development,Strong skills in business development, adtech, and digital data exploitation (privacy compliance, advertising use cases, ID frameworks), and adtech Recruitment process Join a fast-growing SaaS company and play a key role in our growth! • Professional development: access to continuous training and professional growth opportunities (vertical and/or horizontal mobility), • Recognition and rewards: competitive fixed and variable pay, • Autonomy and responsibility: encouragement to take initiatives and make a real impact on projects., • Innovative projects: participation in groundbreaking projects in the field of advertising effectiveness., • Cutting-edge technologies: access to advanced tools and technologies to carry out your missions., • International work environment: collaborate with an innovative, passionate and international team. HQ in the heart of Paris, • Flexible work options: remote work options and flexible office policy for better work-life balance., • Transparency and open communication:between teams and management Recruitment Process: • Video call with Audrey (HR Manager)., • Interview with Mohamed (Head of Trading) for one hour (video or in-person)., • Interview with Guillaume (General Manager) for one hour to confirm the fit.

Hexaly is a fast-growing software company in Mathematical Optimization, also known as Operations Research or Decision Science. The team develops Hexaly Optimizer, the fastest solver for Routing, Scheduling, Packing, and more, and Hexaly Studio, an innovative low-code platform to build optimization applications in days. In addition, Hexaly delivers turnkey optimization applications through its professional services. In solid growth and profitability (+32% in 2022, +23% in 2023, +24% in 2024), the company counts among its customers the most prominent companies worldwide like Amazon, FedEx, Starbucks, Airbus, Bosch, Sony, Renault, Kirin, Shell, TotalEnergies, Repsol, Publicis, JCDecaux, Softbank, and many others. We currently have 10 Operations Research Scientist positions open at Hexaly. Your job You are part of the Hexaly tech team. Daily, you: • Develop new features, algorithm improvements, and fix bugs in Hexaly Optimizer;, • Provide Hexaly users with dedicated support and training;, • Participate in Hexaly professional services, such as developing turnkey applications for clients. Your profile • You have a Master's degree in Operations Research, Computer Science, or Applied Mathematics (university or engineering school);, • You love algorithms and coding;, • You have an eye for detail, you like a job well done, and you don't fear code reviews;, • You are very organized, can follow processes and practices carefully;, • You can listen and handle direct feedback on all that you do;, • You have a high degree of commitment to work and are not afraid of change;, • You have excellent written and oral expression in English. In the first weeks, we will coach you intensively to improve your knowledge of Hexaly's products and acquire Hexaly's software development best practices. Your perks and benefits Annual gross salary between €42,000 and €52,000, depending on profile and experience, plus various advantages (RTT, excellent healthcare insurance, lunch, public transportation, coffee and tea, etc.). Recruitment process • Remote interview with Julien, founder & Head of Science (30 minutes);, • On-site assessment with 2 Senior Optimization Scientists (1 hour);, • Welcome among us! A welcome breakfast with your future colleagues awaits you :-)

Horizon est une agence digitale en pleine croissance, fondée par une équipe jeune et ambitieuse. Notre mission ? Dépasser les objectifs de nos clients avec des stratégies digitales innovantes et performantes. Notre équipe, composée d’une dizaine d'experts, a accompagné plus de 200 clients comme Chanel, Lightspeed, Le Sénat, Orpi, Thea Jewelry et Merci Handy. Nous les accompagnons via 3 expertises : • Web (Création de sites/CRO), • Paid (SEA/SMA), • Emailing (Klaviyo) En tant que Consultant Paid, tu seras sous la responsabilité de notre Head of Acquisition que tu assisteras dans la gestion de ses clients. Si tu délivres, tu prendras rapidement le lead sur ton propre portefeuille clients et de la performance de leurs campagnes d’acquisition digitale sur Meta, Google et Amazon. Tes missions : • Paramétrage des campagnes : Assister à la mise en place des campagnes publicitaires (Google Ads, Facebook Ads, etc.), en s'assurant du respect des bonnes pratiques et des objectifs définis avec le client., • Extraction des données et mises en forme : Extraire les données pertinentes des plateformes publicitaires et les organiser de manière claire et exploitable pour le suivi et l’analyse., • Suivi des performances macro des campagnes : Suivre l’évolution des campagnes, en analysant les performances à un niveau global et proposer des pistes d’optimisation., • Gestion de comptes clients : Prendre en charge la gestion administrative et opérationnelle des comptes publicitaires, en veillant à leur bon fonctionnement., • Soutien opérationnel sur les analyses ad hoc : Réaliser des analyses ponctuelles sur des sujets spécifiques (présentations PPT, rapports d'analyse, etc.), en fonction des besoins du client et de l’équipe., • Accompagnement créatif : faire des recommandations sur les créas publicitaires du client afin d’améliorer ses performances. Profil recherché : • Tu as de l’expérience : tu as déjà travaillé dans le domaine digital, notamment avec un focus particulier sur la publicité en ligne, • Tu aimes le contact client : tu sais l’écouter, comprendre ses besoins, faire preuve de pédagogie, le rassurer et anticiper ses demandes, • Tu es organisé(e) : on peut te faire confiance et tu sais faire preuve de rigueur et d’autonomie. Tu as de l’expérience dans la gestion de projets y compris la planification, l'exécution, et le suivi, • Tu es data-oriented : tu es à l’aise avec les chiffres, tu sais les analyser, les synthétiser et les transformer en action, • Tu es ambitieux(se) : tu cherches constamment à t’améliorer, tu es force de proposition, les responsabilités t’attirent et tu veux t’épanouir dans une entreprise méritocratique, • Tu aimes le digital : passionné par les tendances et innovations technologiques, tu effectues une veille régulière pour rester à la pointe du marketing digital. Évoluer chez Horizon, c'est : • ⁠Faire partie d’une agence dynamique en pleine croissance, • Travailler avec des entreprises issues d’une pluralité d’industries, • Des bureaux à deux pas des Champs-Élysées, • Une rémunération en fonction du profil, • Un variable sur le chiffre d’affaires que tu génères, • De l’équipement de qualité fourni (Apple), • Des événements réguliers (afterwork, restaurant, team building, etc), • ⁠Des titres-restaurants (Swile), des frais de transport et une mutuelle (Alan), • L’accès à des formations pour développer tes compétences, • Un apprentissage continu via le partage de ressources en interne Déroulement des entretiens : • Remplissage de notre questionnaire et envoi de ton CV, • Entretien visio : présentation de ton parcours et réponse à tes questions (30 minutes), • Entretien physique : réalisation d’un cas pratique et rencontre avec l’équipe (1h30), • Réception de l’offre 📝 Si notre mission t’inspire et que tu es prêt(e) à relever de nouveaux défis, nous avons hâte de découvrir ta candidature. Postule dès aujourd'hui pour faire partie de notre aventure.