Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.                  

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

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Refer them! 

Speechify is committed to a diverse and inclusive workplace. 
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Notre équipe Value Chain - Data Cross Team recherche un·e Architecte BW & Chef de Projet Migration S/4 HANA (f/m/d) basé·e à Lille 

Au sein de Decathlon Digital, notre équipe est au cœur de la transformation technologique de la Value Chain. Notre défi majeur pour 2028 ? La migration critique de nos environnements ECC (Corporate & Brésil) vers SAP S/4HANA. Nous recrutons pour piloter le lot "Data" de cette transformation et poser les fondations de notre futur "Business Data Cloud". Rejoindre notre équipe, c’est évoluer dans un environnement agile, orienté "Clean Core" et IA, où chaque donnée compte pour rendre le sport accessible au plus grand nombre.

TA FUTURE CONTRIBUTION

En tant que pilier technique et méthodologique, tu seras responsable de la stratégie de données pour la migration S/4 HANA (méthode Bluefield) et de l'implémentation de notre nouvelle couche sémantique. Tes missions principales incluent :

• Pilotage du Lot Data (S/4HANA) : Tu définis le scope (arbitrage, archivage, decommissioning) pour réduire l'empreinte carbone et technique de nos bases de données.

• Stratégie de Migration & Qualité : Tu conçois les mécanismes de transformation et de remédiation (notamment pour les interfaces Talend/CDS Views) et garantis une intégrité totale des données lors du cutover.

• Écosystème & Interfaces : Tu sécurises les flux vers le Data Lake et BW (ACDOCA) pour assurer une continuité du reporting et de l'analytique sans aucune régression.

• Architecture Business Data Cloud : Tu participes activement au déploiement de DataSphere, SAP Databricks et à l'intégration de l'agent Joule via le Delta Sharing.

• Animation transverse : Tu coordonnes les équipes produits, gères les répétitions de bascule et pilotes la phase d'Hypercare post Go-Live.

STACK TECHNIQUE

SAP S/4 HANA, SAP ECC, BW/4HANA, SAP Datasphere (DWC), SAP Databricks, Talend, CDS Views, Delta Sharing, Joule Agent.

CE QUE TU APPORTES

• Une expertise confirmée en architecture SAP BW et une expérience concrète sur SAP Datasphere ou Data Warehouse Cloud.

• Une expérience solide en gestion de projets de migration ERP complexe (la connaissance de la méthode Bluefield est un vrai plus).

• Une capacité à naviguer dans des modèles de données complexes tout en gardant une vision "Clean Core".

• Ta rigueur analytique, ta résistance au stress lors des phases de cutover et ton aisance pour animer des instances de gouvernance internationales.

CE QUE NOUS T’OFFRONS

• Organisation de travail hybride ;

• Matériel fourni en accord avec tes missions et nos engagements sociétaux (Mac ou Windows) ;

• Une équipe de projet locale au sein d'un réseau mondial (possibilité de carrière internationale) ;

• Développement des compétences et accompagnement (certifications techniques dès la première année, formations internes et externes) ;

• Package de rémunération (participation, bonus mensuels/trimestriels).

Product Manager – Sport Activities

Mission

The CIAM (Customer Identity and Access Management) team is seeking a dedicated Product Manager to lead the Sport Activities ecosystem. This role is at the heart of Decathlon’s strategy to transition from a pure retailer to a partner in our customers' sporting lives.

As the PM for this scope, you will oversee a portfolio of four foundational products: Sport Tracking Data (STD), Body (morphology), Favorite Sport and the Partner Hub (integrations with Strava, Garmin, etc.). Your mission is to transform these high-traffic backend services from a maintenance state into a high-performing engine that powers global personalization, the Membership loyalty program and cross-selling across all Decathlon digital platforms.

You will be the architect of how we capture, enrich, and utilize sporting data to create a fluid, data-driven customer journey.

Key Responsibilities

1. Co-design and Product Animation (Agile)

• Animate User Needs: Animate the expression of user needs within the product team.
• Backlog & User Stories: Co-write the user stories and maintain the backlog of new features.
• Prioritization: Co-prioritize new features, knowing how to "say no" to keep the team focused on the essentials.
• Acceptance Criteria: Define the acceptance criteria for new features.

2. Delivery and Product Quality

• Validation & Compliance: Validate and verify the compliance of features with user needs.
• Impact & Satisfaction: Measure the impact of product enhancements on users satisfaction.
• Adoption: Make the product known and develop its use (the "sell it").
• Technical Excellence: Contribute to the team effort to deliver a high-quality product that is maintainable, scalable, and reliable in production.

3. Collaboration and Ecosystem

• Privileged Interface: Be the privileged interface between users and the technical team.
• Agile Ceremonies: Help with collaboration within the team by leading agile ceremonies.
• Transversal Collaboration: Work closely with the other CIAM product teams as well as with the Sports Experience teams and Connected Sport Products to collaboratively define priorities and impact. Easily collaborate with Tech, Data, Support and Design teams to improve the product.

4. Data-Driven Steering: Backend Instrumentation & Optimization

• Observability: Design and maintain robust logging and event tracking to monitor the performances. Identify system bottlenecks and latency issues within the communication delivery.
• System Performance & Alignment: Partner with Tech leads, Support and Data team as well as with other product people in charge of the end-user experiences to translate business KPIs into high-performance backend requirements, ensuring that technical implementations are both scalable and measurable.
• Logic Experimentation: Architect and execute server-side A/B tests to validate changes in verification workflows

Profile Sought

Product & Technical Expertise

• Experience: At least one year of Product Management or Product Owner experience in a B2C digital environment, ideally with a focus on APIs or data-heavy products.
• Stakeholder Management: Ability to navigate and lead at the intersection of multiple cross-functional teams, ensuring alignment and effective collaboration across the organization.
• Vision & Strategy: Proven ability to define a clear product path forward and develop a long-term strategy that goes beyond simple maintenance to deliver significant new value.
• Business Acumen: A strong focus on the business impact of products, with the ability to balance technical requirements with broader commercial goals and KPIs.
• Technical Literacy: Strong understanding of API design, Webhooks, and Kafka. You should be comfortable discussing technical constraints with engineers.
• Legacy Management: Experience or a strong interest in managing technical migrations and modernizing backend infrastructure.
• Methodology: Proficient in Agile/Scrum and capable of maintaining a clean, prioritized backlog.

Soft Skills

• Investigative Mindset: A "detective" approach to uncovering how data moves through a global organization.
• Communication: Ability to synthesize complex technical topics into simple, persuasive narratives for diverse stakeholders in order to influence and convince them.
• Resilience: Comfortable managing high-traffic products where stability and performance are critical.
• English: Fluent English is mandatory.

Assets (Nice to have)

• Passion for Sport: A personal interest in sport tracking and an understanding of why biometric and performance data matter to athletes.
• Data Science Interest: Familiarity with how behavioral data fuels personalization and recommendation engines.