Freelance Technical SEO Specialist (AI & Semant...

Biggie is a global marketing agency for strategy and activation agency, part of Biggie group, an independent international group of integrated marketing solutions. Biggie's motto is "Partners in growth", and its ambition is to be a partner in the growth of brands, by putting strategic and operational excellence at the service of their performance, and by offering them tailor-made support (marketing strategy, strategic planning, data & analysis, media, digital performance, content creation and adaptation, and business consulting) to meet their business challenges. The agency has 300 experts, including 150 in France, present in 7 countries through 9 international offices (Paris, Marseille, Brussels, Milan, Geneva, Zurich, Prague, Dubai and Sao Paulo). For further information: www.biggie.co ️ Missions We’re looking for a technically-minded SEO specialist who understands how search is evolving in the age of AI. Your focus will be on ensuring that client websites are crawlable, semantically structured, and fully ready for both traditional search engines and emerging AI-driven search experiences. Core Expertise • Advanced technical SEO fundamentals: crawlability, indexation, site architecture, canonicalization, and structured data. • Core Web Vitals Audit and performance optimization — site speed, mobile responsiveness, and rendering behavior. • Schema.org implementation and entity-based SEO (Article, Product, FAQPage, Organization, Person, Review, etc.). • Robots.txt and sitemap management, including AI crawler accessibility. • HTTPS and security hygiene for SEO and user trust. • Log file analysis and crawl diagnostics using Screaming Frog, Sitebulb, or similar tools. • International SEO: hreflang, geo-targeting, and multilingual sitemaps. • Monitoring & reporting via arenaflex Search Console, Analytics, and SEO platforms like SemRush. AI & Next-Gen Search Readiness • Understanding of AEO (AI Engine Optimization) and how AI systems retrieve and cite web content. • Optimizing metadata and structured entities for AI-generated summaries and “citable” results. • Awareness of semantic markup, entity linking, and the Knowledge Graph. Collaboration & Delivery • Work directly with clients, internal teams, developers and IT teams to implement SEO recommendations. • Document and communicate technical requirements clearly. • Advise on scalable SEO frameworks and technical standards across client properties. Your Profile • 3+ years of hands-on experience in technical SEO. • Strong understanding of structured data, site architecture, and crawl mechanics. • Analytical mindset and problem-solving approach. • Fluent English (German or French a plus). Why Join • Flexible freelance role (hourly or project-based). • Collaborate with forward-thinking teams integrating AI into search optimization. • Opportunity to shape how clients prepare for the next generation of search. Our benefits : • An international group present throughout the world • Multidisciplinary entities that are experts in their field: programmatic, influence, 360°, content creation, etc. • Different career paths adapted to your professional aspirations • On-going training sessions with a Digital AcademyAccess. • Employee meal allowance Biggie Group offers employment opportunities without distinction of origin, sex, morals, sexual orientation, gender identity, age, marital status, physical appearance, disability, religion, of political opinion…Biggie Group complies with regulations combating discrimination in business. This policy applies throughout the employer process: recruitment, hiring, internal promotion, leave, remuneration and training. Apply tot his job