Développeur.euse GenAI / IA Générative Travailler chez Cossette, c’est se brancher sur une énergie créative incomparable. C’est collaborer avec des client·e·s qui flashent sur des projets stimulants qui mettent nos forces en lumière et qui rayonnent mondialement. C’est être entouré·e de gens intelligents et allumés qui ont le feu sacré bien vivant. C’est donner un élan à sa croissance, et sentir qu’on te fait vraiment confiance. Bref, travailler chez Cossette, c’est sentir qu’on passe à un autre niveau. Working at Cossette means connecting to an incomparable creative energy. It means collaborating with clients who are excited about stimulating projects that highlight our strengths and resonate globally. It means being surrounded by intelligent and enlightened people who have the sacred fire very much alive. It means boosting your growth, and feeling truly trusted. In short, working at Cossette means feeling like you’re moving to the next level. Le rôle inclut Designing and deploying end-to-end agentic workflows and RAG systems (LLMs, vector databases, orchestrators, APIs), with a requirement for robustness and production quality. Mapping and defining clear solution architectures, from client brief to deployment, by rigorously documenting technical choices (spec-driven development). Selecting, integrating, and optimizing LLMs (OpenAI, Anthropic, VertexAI, etc.) and orchestration frameworks (LangChain/LangGraph, Vercel AI SDK, CrewAI, etc.), while staying abreast of the latest advances in generative AI. Mastering data in all its forms: structured, unstructured, vectorised. Designing vectorisation and retrieval strategies tailored to the real needs of the delivered products. Optimizing prompts to maximize relevance and quality of responses. Connecting AI agents to vector databases, external APIs, and other digital assets, with mastery of best practices for API testing and documentation (Postman, RESTful). Implementing traceability and observability tools (LangSmith, LangFuse, etc.). Actively collaborating with front-end and back-end teams, not as an internal consultant, but as a full co-builder. Ce que tu apportes Real autonomy: you identify obstacles, propose solutions, and move forward without waiting for the path to be cleared for you. An end-to-end product vision: you care as much about the user experience as what is running under the hood. A constant concern for delivering finished, quality products, designed for real users, not prototypes or demos. A collaborative and intrapreneurial spirit: you get involved, you raise the right questions, you move things forward. Ease with data in all its forms: you know how to understand it, structure it, transform it, and use it as leverage for the products you build. Active monitoring of the generative AI ecosystem, LLMs, orchestration frameworks, and emerging best practices. A good command of the open-source ecosystem and the reflex to choose the right tools for the right contexts. Practical experience with the design of agentic workflows and the integration of LLM models (OpenAI, Anthropic, VertexAI, etc.). Ability to map a solution architecture and document it clearly (spec-driven development). Solid Python skills in an ML/AI context, and good command of JavaScript / TypeScript for web integration and deployment. Experience with CI/CD pipelines and containerized environments (Docker). Mastery of RESTful APIs, API testing best practices (Postman), and Git. Understanding of agent skills and their design in multi-agent architectures, particularly with Claude (Anthropic). Experience with cloud and vector database tools: Supabase, BigQuery, and equivalents. Familiarity with front-end frameworks (React, Vue, Svelte). Atouts Knowledge of creative technologies in generative AI, particularly for video, image, audio generation, and visual workflow interfaces: Veo, Kling, SeedDance, Nano Banana, GPT Image, Weavy, ComfyUI, Adobe Firefly, Runway, Ideogram, Eleven Labs. Expérience Minimum 2 years of experience in GenAI and 3 to 7 years in web/application development. Qu’est‑ce que tu y gagnes ? Une innovation et un travail entrepreneurial pour l’esprit – an innovative and entrepreneurial work environment that encourages ingenuity and individuality. Hybrid work models and flexible hours, and a work-from-anywhere policy for short-term stays in other regions. Generous vacation starting at 3 weeks + 1 extra week during the holiday season. Modern and open workspaces, with coffee and snacks, located in the heart of the city, close to shops and restaurants, and with easy access to public transport. Social events for the team – holiday parties, seasonal gatherings, weekly happy hours, inspiring conferences, and much more! Internal learning and development sessions, annual conversations about career and growth. Access to an internal network of professional opportunities across all agencies in the Plus Company network. EDI committees and Employee Resource Groups, programs, and initiatives throughout Plus Company. Flexible benefits to meet your lifestyle and life stages – access to a personal account for a wide variety of expenses. Comprehensive mental health support, including virtual clinic and therapy sessions, and a holistic range of resources. Health and well‑being rooms when you need a place to recharge. A responsible sick and personal leave policy designed so that you don’t have to worry when an obligation or emergency arises. Complementary maternity leave plan. Ce que tu dois savoir Nous sommes fiers de notre milieu de travail inclusif et accessible. Nous sommes un employeur qui souscrit au principe de l’égalité des chances et nous ne faisons aucune discrimination fondée sur l’âge, la couleur, les capacités, l'origine nationale, la race, la religion, le sexe ou l’orientation sexuelle. Non seulement ces dispositions sont‑elles protégées par les lois provinciales et fédérales, mais l’acceptation de la différence est ce qui fait de Cossette ce qu’elle est, et on ne voudrait pas qu’il en soit autrement. Si vous avez besoin de mesures d’adaptation au cours du processus d’entrevue, faites‑le nous savoir. Conditions de travail « Les besoins linguistiques pour le poste sont évalués conjointement entre le gestionnaire et l’équipe d’acquisition de talents. » Informations supplémentaires Découvrez notre rapport EDI ici pour en savoir plus sur notre travail et notre engagement envers l’équité. #J-18808-Ljbffr