Senior QA Engineer (f/m/d)

SFEIR

👾 Tu as l’âme d’un vibe coder ? Tu développes avec Claude Code ouvert en permanence, tu prompts plus vite que ton ombre et tu penses que l’IA va complètement transformer le métier de Data Engineer ? Welcome chez SFEIR Nantes. 🧠 Ce qu’on recherche chez toi Tu n’as pas peur de : architecturer des pipelines data robustes avec Python, SQL, dbt et Airflow, jongler entre BigQuery, Snowflake, Databricks, Kafka ou les outils MLOps, penser Data Quality, gouvernance, observabilité, orchestration et optimisation des coûts, transformer des datasets complexes en plateformes réellement exploitables, expérimenter avec l’IA générative pour réinventer les workflows data. Tu veux comprendre ce qu’il se passe sous le capot. Pas juste lancer des jobs. 🛠️ Les projets sur lesquels tu pourrais t’éclater Construire des plateformes Data & AI cloud-native sur Google Cloud, Développer des pipelines temps réel pour piloter des activités critiques, Industrialiser des architectures MLOps et LLMOps, Concevoir des systèmes RAG connectés aux données métiers, Intégrer l’IA générative dans des workflows analytics et data engineering, Participer à des projets mêlant Data, IA, Cloud et software engineering,  🚀 Pourquoi rejoindre SFEIR Nantes ? Parce qu’ici, la tech passe avant le bullshit. Tu rejoins une communauté où les décisions techniques sont prises par des engineers et où le partage de connaissances fait partie du quotidien. Chez SFEIR Nantes : ton Engineering Manager code, les architectes restent proches du terrain, les talks sont animés par les équipes, et les communautés tech vivent toute l’année. Tu évolues dans une vraie “Skill-Based Organization” : ta progression dépend de ce que tu sais construire, transmettre et faire grandir. 🚀 Ce que tu trouveras chez nous Un vrai management technique, Une communauté active autour de la Data, de l’IA et du Cloud, Des meetups, labs, talks et formations internes toute l’année, Un accès à SFEIR Institute et aux certifications Google Cloud / AWS, Des trajectoires d’évolution variées : IC, Staff Engineer, Engineering Manager, Trainer, Speaker… Une forte culture du craft, de l’architecture et du partage. 🤖 Notre botte secrète : RAISE & SFEIR AI Chez SFEIR, maîtriser l’IA n’est plus une option. Tu auras accès à RAISE, notre plateforme GenAI interne multi-LLM, utilisée par nos équipes pour : accélérer les workflows data, construire des assistants IA connectés aux données métiers, expérimenter rapidement autour des LLMs, développer des usages RAG et agents IA, et industrialiser des solutions concrètes. ✨ Qui sommes-nous ? SFEIR est un pure player du digital, du Cloud, de la Data et de l’IA générative. 900 techs en France, Belgique et Luxembourg qui partagent la même ambition : coder, apprendre, transmettre et construire des produits qui comptent. 🌊 Et Nantes dans tout ça ? SFEIR Nantes, c’est : une communauté tech en pleine croissance, des projets Data & AI à fort impact, une présence forte dans l’écosystème nantais, des speakers présents sur les grands événements tech, des locaux à La Cantine Numérique au cœur de l’Île de Nantes, des talks, afterworks, meetups et SFEIR School toute l’année. Ici, on aime autant débattre d’architecture data que comparer les meilleurs prompts pour optimiser un pipeline IA 😄 🎯 En pratique Localisation : Nantes Télétravail : 2 à 3 jours par semaine Stack fréquente : Python, SQL, dbt, Airflow, BigQuery, Databricks, Kafka, GCP, Vertex AI, Docker, Kubernetes, APIs LLM, RAG 🎮 La suite des événements Premier échange avec l’équipe recrutement, Entretien RH personnalisé, PlayOffs techniques en pair programming avec des Sfeirien·ne·s, Rencontre avec l’équipe business, Échange final avec le management local. 🤩 Ready to build the future of Data & AI with us ? Tu veux construire des plateformes data modernes avec une team passionnée, dans une boîte où la technique est réellement au centre ? Viens discuter avec nous 🚀

IDnow

IDnow is a leader in digital identity and fraud prevention in Europe with a mission to transform trust into the most powerful asset in the digital world, empowering enterprises with AI-driven, SaaS-based identity solutions that deliver scalable security, adaptive compliance, and real-time fraud prevention. Through its broad portfolio of digital identity and fraud prevention solutions, IDnow establishes, maintains and enriches trust throughout the customer journey, ensuring businesses can confidently and securely operate while leveraging digital identity to drive growth, security and scalability. The company has offices in Germany, United Kingdom, Romania and France, and is backed by renowned institutional investors, including Corsair Capital and Seventure Partners. Its portfolio of international clients spans a wide range of end markets including financial services, telecommunications, travel & mobility, gaming, and other industries. This position is based in Rennes, France. Europe's leader in identity verification solutions (KYC, eSigning, IDcheck, etc.), is strengthening its RDM (Research Data Management) division. We are looking for a Senior Data Engineer passionate about data and industrialization to design and operate the tools and data storage that power our software and AI research. The data you'll manage is at the core of what IDnow does: identity documents, biometric data, and verification records, sensitive by nature, regulated by design, and technically challenging to handle at scale. You will play a key role in the design and construction of our next-generation data lake, shaping its architecture from the ground up and bringing your experience to a team that values technical leadership and ownership.   KEY RESPONSIBILITIES   * Define and own data storage and data management architecture for our software and AI/ML workflows. * Develop and maintain tools and services that AI & ML R&D teams and engineering teams rely on, including workflow orchestration platforms and test campaign infrastructure. * Manage and analyze large data volumes. * Set up and maintain backend APIs and services that provide reliable and secure internal data access. * Operate and evolve the platform infrastructure (CI/CD, containerization, deployments) with a strong focus on quality (automated testing). * Enforce data access policies and GDPR compliance rules on research datasets, ensuring proper governance, traceability, and data minimization. * Collaborate closely with internal stakeholders (ML teams, product design and development, QA, devops) in an agile environment to prioritize and deliver within a continuous improvement process. * Enforce data access policies and GDPR compliance rules on research datasets, ensuring proper governance, traceability, and data minimization.     PREFERRED EXPERIENCE   REQUIRED: * Application development in Python (tooling, services, data scripts, packaging). * API frameworks and REST APIs (FastAPI/Django REST or equivalent). * Automated testing with pytest; strong quality and coverage mindset. * SQL databases: solid knowledge of PostgreSQL and MariaDB (modeling, query writing, migrations, basic performance tuning). * Data storage: design and operation of data storage solutions, including S3-compatible object storage (Ceph/Rook). * Docker and Kubernetes: containerization best practices and cluster deployments. STRONG PLUS: * Helm and ArgoCD: we are currently migrating our full stack to a Kubernetes + Helm + ArgoCD deployment model, hands-on experience here is a significant advantage. * Identity and access management: Keycloak or equivalent SSO/IAM solutions. * Search & analytics: OpenSearch or equivalent. * CI/CD: GitLab CI, deployment automation (Ansible, ArgoCD). WORKING ENVIRONMENT * Multidisciplinary teams (AI/ML research, development, QA), agile methodology. * Internal clients with a direct impact on the speed and quality of AI research at IDnow. * Strong technical culture, with mutual support and continuous growth. * A technically rich domain where AI, security, and privacy constraints intersect. * Linux: day-to-day administration and tooling (shell, security, permissions, networking). WHAT YOU’LL BRING * The ability to translate R&D needs into robust, scalable, and well-tested data platforms and tools. * Technical leadership on data lifecycle management (ingestion, storage, access, traceability) in service of AI and testing. * The ability to drive key architectural decisions on our data lake: storage organization, access patterns, data lifecycle, and tooling choices. * An industrialization mindset (automation, reproducibility, observability) applied to ML and data workflows. SOFT SKILLS * Motivation and initiative. * Curiosity, appetite for technical challenges, and continuous learning. * Team spirit, clear communication with diverse stakeholders (engineers, researchers, QA, devops). * Rigor, service orientation, and product mindset. * English required (international environment).     PERKS & BENEFITS * Health & Wellbeing: Use your full access to the mental health platform nilo, including 1on1 sessions. * We value personal and professional development: make full use of Udemy, our training platform with 24/7 access and unlimited content/course consumption incl. certification. * We make your remote work comfy: we provide support on equipment and offer flexible working hours. * We value collaboration & love to come together: regular onsite gatherings, internal initiatives and summer parties to connect outside of work. * May your family require your attention or other reasons apply: use the benefit of our paid special leave days. * Enjoy the possibility to combine work with a longer stay at your holiday destination or extend a weekend with our Workcation possibilities. * In addition to the perks & benefits above, we offer specific benefits that differ between our locations.   IDnow applies the principles of non-discrimination and equality: We strive to establish, maintain, and promote an open and inclusive recruitment process and working environment by respecting the principles of equal opportunities. Including but not limited to: sex, race or ethnic origin, religion or convictions, gender identity, citizenship, marital status, disability, age, or sexual orientation.

ZEAL Network

ZEAL Network SE is an international group shaping the future of digital lotteries and dream-driven experiences. As Germany’s leading online lottery provider through LOTTO24 and Tipp24, and a partner of Spain’s ONCE, ZEAL combines innovation, technology, and entertainment to inspire millions of customers. With ventures such as Freiheit+, Traumhausverlosung, Traumautoverlosung and ZEAL Ventures, the company also invests in new business models and emerging e-commerce brands. Driven by a diverse team of 350+ professionals, ZEAL fosters a collaborative, ambitious culture focused on turning dreams into reality. As a (Senior) Quality Assurance Engineer (f/m/d) in our Games Production Team, you will ensure the quality, functionality, and security of our growing portfolio of slot games, instant-win games, and scratchcards. Your work plays a critical role in delivering a reliable and enjoyable experience for players, while also upholding regulatory compliance and safeguarding the integrity of our gaming platform. You’ll help establish and continuously improve QA practices that make our games robust, testable, and ready for release in regulated markets.   YOUR TASKS: * Design, build, and maintain automated test suites tailored for slots, instant-win games, and scratchcards, while performing manual testing during development and release phases. * Define and evolve test strategies that address the unique challenges of game testing — including animations, UI responsiveness, game state complexity, and random outcomes. * Collaborate with Game Developers, Game Designers, and Artists in a creative and agile environment. * Maintain structured test documentation, including test plans, bug reports, and regression checklists. * Execute cross-device and cross-browser testing to validate performance, consistency, and responsiveness across platforms. * Ensure compliance with regulatory standards, and support certification-related QA tasks such as preparing test evidence or assisting with audits for relevant jurisdictions (especially Germany). Prior knowledge is a plus, but can also be acquired on the job. * Advocate for a player-first quality mindset, helping the team prevent critical issues that could impact the game experience or platform reputation.   WHAT YOU OFFER US: * Practical experience in testing online games, ideally including slot games, scratchcards, or instant-win mechanics. iGaming industry experience is highly desirable. * A solid understanding of game testing challenges, including randomness, animations, math models, and edge-case scenarios. * Familiarity with basic probability and mathematics used in slot game design (e.g., RTP, volatility, win frequency) is a strong plus. * Proficiency with Playwright and TypeScript or similar frameworks for frontend automation. * Experience in manual exploratory testing—you know how to think like a player and uncover hidden issues. * Understanding of QA standards and compliance requirements for regulated markets (e.g., Germany, UK, MGA). * Strong collaboration skills and a proactive mindset—you’re ready to take ownership of quality in a fast-moving team. * Strong English skills are required for collaboration within the team. * Fluency in German is a nice-to-have.   WHAT WE OFFER: * State-of-the-art technologies and an agile environment (Check our Tech Radar: https://lotto24.github.io/tech-radar/) * A modern, dynamic culture grounded in the success of a leading-edge e-commerce company. * A talented team of ambitious, like-minded colleagues where your knowledge and ideas truly make an impact. * Ongoing personal growth, supported by an annual development budget of €1,500 to invest in your professional development. * Trust and autonomy, no micromanagement, just confidence in your ability to deliver and excel. * Flexible work options with a hybrid setup focused on results. * Unlimited vacation days in addition to your yearly 30-day vacation allowance. * Opportunity for workations abroad using our WorkFlex tool. * Monthly mobility allowance of €30 to use on the mobility option of your choice (e.g., the Deutschlandticket), plus access to a company bike leasing program. * Company pension scheme, provided in partnership with Degura, to support your future financial security. * Subsidized EGYM WELLPASS membership, with a contribution of only €25 per month, giving you access to a wide range of gyms and sports options across Germany. * Quarterly company events, along with regular team activities and informal gatherings, a favorite being our Healthy Tuesday lunches or Treat Thursdays in the office!   Sounds exciting? Great! We're looking forward to receiving your online application.