Mission Overview: Keystone Solutions is seeking a GIS Expert & Architect for a consultancy mission at a client site. The consultant will play a crucial role in implementing complex GIS projects and serve as a technical reference on ArcGIS Enterprise/Utility Network. This position emphasizes on-site work, allowing you to engage directly with diverse client environments and challenges. Key Responsibilities: Provide expertise and leadership in the design, deployment, and optimization of complex GIS solutions, ensuring alignment with business needs and strategic directions. Act as a technical reference, particularly on ArcGIS Enterprise and ArcGIS Utility Network. Lead GIS projects. Propose optimization strategies for processes and tools. Develop/configure ArcGIS apps (Experience Builder, JavaScript API, Field Maps, Survey123) and publish services/layers in ArcGIS Enterprise. Design/optimize FME Desktop/Flow workflows (scheduling, monitoring, recovery). Contribute to change management, user guides, and documentation for deployment and operation. Required Skills: Higher education in geomatics, geography, computer science, or equivalent (minimum Bac4/5). Minimum 10 years of experience in implementing complex GIS projects and architectures within the Esri ecosystem. Proven experience in managing complex GIS projects. Expertise in designing application architecture for a sectoral GIS platform. Ability to manage a portfolio of projects. Demonstrated experience in GIS projects related to water and/or sanitation (knowledge of business processes and practices of public operators is an asset). Advanced mastery of ArcGIS Enterprise: installation, configuration, and administration (Portal for ArcGIS, ArcGIS Server, Data Store), service publication, optimization via tiling, role management, security, high availability. ArcGIS Enterprise Administration certification is a plus. Mastery of enterprise geodatabase: configuration, design, distribution, loading, maintenance, versioning, archiving, and optimization. ArcGIS Enterprise Geodata Management certification is a plus. Proficiency in SQL/PostgreSQL/PostGIS: solid understanding of spatial databases, operational mastery of SQL, joins/aggregations, basic spatial functions (ST_Intersects, ST_Buffer), spatial indexes. Proven experience in implementing ArcGIS Utility Network: complete implementation, solid knowledge of concepts (associations, rules, tracing, topology), ability to analyze functional impacts, modeling complex networks, configuring topological rules, and integration with third-party systems (e.g., SAP) and business applications. Proven experience in configuring ArcGIS Experience Builder, Survey123, Field Maps, and ArcGIS Dashboards. Proficiency in Python (ArcPy) for automating geospatial processes and/or deployments. Mastery of FME Desktop/Flow: creating standard workflows, complex automations, FME Flow, logs & debugging. FME Professional certification is a plus. Knowledge of DevOps (Git, CI/CD, deployment on ArcGIS Enterprise). Fluency in French. Technical English knowledge required. If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal. Duration: 01/09/2026 - 31/08/2027 12 months (full time) Skills required: Exprience: Formation suprieure en gomatique, gographie, informatique ou quivalent (Bac4/5 minimum) ; Minimum 10 ans d'exprience dans la mise en uvre de projets et darchitectures SIG complexes sur l'cosystme Esri ; Comptences : Exprience avre en gestion de projets SIG complexes. Maitrise dans la conception darchitecture applicative dune plateforme SIG sectorielle Capacit de grer un portfolio de projets Des expriences dmontres dans des projets SIG lis au domaine de leau et/ou de lassainissement (connaissance des processus mtiers et des pratiques des oprateurs publics) constituent un atout. Matrise avance dArcGIS Enterprise : installation, configuration et administration (Portal for ArcGIS, ArcGIS Server, Data Store), publication de services, optimisation via tiling, gestion des rles, scurit, haute disponibilit. La certification ArcGIS Enterprise Administration est un atout Matrise en geodatabase dentreprise : configuration, conception, distribution, chargement, maintenance, versionnage, archivage et optimisation des godatabases d'entreprise. La certification ArcGIS Enterprise Geodata Management est un atout Matrise SQL / PostgreSQL / PostGIS : solide matrise des BD spatiales, matrise oprationnelle de SQL, jointures/agrgations, fonctions spatiales de base (ST_Intersects, ST_Buffer), indexes spatiaux Exprience avre dans la mise en uvre dArcGIS Utility Network : implmentaiton complte, connaissance solide des concepts (associations, rgles, traage, topologie), capacit analyser les impacts fonctionnels, modlisation de rseaux complexes, configuration des rgles topologiques ainsi quintgration avec des systmes tiers (ex. SAP) et des applications mtiers. Exprience avre en configuration dArcGIS Experience Builder, Survey123, Field Maps et ArcGIS Dashboards ; Matrise Python (ArcPy) pour l'automatisation de traitements gospatiaux et/ou des dploiements ; Matrise FME Desktop/Flow : cration de workflows standards, automatisations complexes, FME Flow, logs & debugging. Une certification FME Professonnal est un atout Notions de DevOps (Git, CI/CD, dploiement sur ArcGIS Enterprise) ; Matrise du franais ; Connaissance de l'anglais technique requise ; La mission est susceptible au renouvellement selon lapprciation du client. View more Language requirements: English Level Nice to have French Level Native or bilingual proficiency Screening questions: 1. Disposez-vous dune exprience significative sur les produits ArcGIS et/ou de certifications associes ? 2. Quelles sont vos comptences en architecture d'un environnement GIS? 3. Quelle exprience avez-vous en coordination de projets?