Top Tech Jobs & Startup Jobs in Lille

Lead and own the full marketing function with a data-driven approach: set KPIs, manage budget and team, drive SEO and AI visibility, execute B2B PR and demand-generation strategies, optimize CAC/ROI, and collaborate with Sales and Product to grow pipeline and revenue.

Plan, build, launch, and optimize VIP CRM campaigns across Casino and Sports using Email, SMS, Push and In-App. Create player segments, run A/B tests, monitor KPIs (retention, churn, NGR, ARPU, ROI), analyze performance, and collaborate with cross-functional teams to improve VIP retention and engagement.

Own and scale a petabyte-scale ClickHouse deployment on AWS: manage EC2 fleets, disks, and networking; build automation for provisioning, scaling, rebalancing and recovery; improve deploys/backups/restores and incident response; collaborate with ClickHouse engineers; participate in on-call and reduce operational toil through automation.

Design, prototype, and deploy ML models for personalization in mobile games. Implement and evaluate algorithms (including RL and generative methods), run A/B tests, convert prototypes to production via MLOps, monitor player data, and collaborate with product, engineering, and analytics teams to improve retention and monetization.

Edit high-production, conversion-focused short-form videos and social ads (UGC, motion graphics) for D2C brands across TikTok and Meta. Optimize platform-specific creatives, meet tight deadlines, incorporate client feedback, and stay current with trends and performance-driven editing techniques.

Provide high-quality executive and coordination support to Strategy & Corporate Development and Finance: manage external/internal meeting logistics, travel and visa arrangements, invoicing and expense reporting, prepare reports and presentations, liaise with senior stakeholders and counterparts globally, and support CFO and senior leaders with confidential diary and administrative tasks.

The ML Engineer will enhance NLP projects by fine-tuning LLMs, implementing models, conducting experiments, and staying updated on advancements in NLP.

Own and execute Decoda's content and inbound growth strategy across social, blog, SEO, and paid channels. Produce short-form video and written content, design experiments to optimize engagement and cost-per-lead, manage paid and organic performance, implement analytics and attribution (GA4, UTM), track funnel metrics, and collaborate with leadership to align content with sales and brand priorities.

Evaluate personalized AI responses for Gemini by designing multi-turn prompts using personal data, comparing side-by-side responses, assessing grounding, integration, and helpfulness, writing structured rationales, extracting debug info, and maintaining data hygiene.

Design, implement, and maintain blockchain infrastructure and dApps. Develop and review smart contracts, optimize consensus and cryptography for scalability and security, troubleshoot performance and reliability issues, and collaborate with product and design teams to deliver features while staying current with blockchain advancements.