As a founding entity of RAINBOW PARTNERS, Quanteam is a consulting firm specialized in the Banking, Finance, and Financial Services sectors. Guided by its core values of proximity, teamwork, diversity, and excellence, our team of 1,000 expert consultants, representing 35 different nationalities, collaborates across 10 international offices: Paris, Lyon, New York, Montreal, London, Brussels, Geneva, Lisbon, Porto, and Casablanca. We are looking for a Big Data Java Developer for one of our clients, an investment bank located in Montreal. Key responsibilities Act as Big Data Cloud Expert within a global team split between Montréal and Paris. Serve as the main point of contact for AMER region projects using the Data Lake platform. Contribute to the maintenance and evolution of the Big Data offering on Microsoft Azure. Collaborate with security teams to identify risks and ensure alignment with required constraints. Implement Java APIs and infrastructure‑as‑code scripts to automate the creation of Big Data services. Conduct POCs to evaluate new Big Data technologies based on emerging needs. Advise project teams on technology selection. Support Spark implementation and performance tuning. Assist with version upgrades across tools and components. Provide guidance on cost optimization for Big Data workloads. Deliver training sessions on the Big Data platform. Participate in production support, including overtime when necessary, and communicate incident updates to AMER users. Work with Microsoft to diagnose root causes for platform issues, identify workarounds, and implement solutions. Coordinate with Paris for incident handover after Paris hours, and with Asia for cases extending past AMER hours. Contribute to platform design, transformation projects, implementation, and ongoing support. Profile 5+ years of development and architecture experience with Java, including multi‑threaded applications and APIs. Previous experience with Oracle SQL, PostgreSQL, or similar RDBMS technologies. Strong experience with CI/CD pipelines and infrastructure management (e.g., Kubernetes). Nice to Have Experience with Big Data technologies such as Apache Spark, NoSQL databases, Airflow. Experience with Microsoft Azure technologies such as AKS, Azure Storage, Azure Synapse. Working knowledge of infrastructure‑as‑code tools such as Terraform, Helm, PowerShell or Bash. Bachelor’s degree in Computer Science, DEC, or equivalent technical certifications. Language Ability to communicate in English, both orally and in writing, is a requirement as the person in this position will need to collaborate regularly with colleagues and partners in the United States. #J-18808-Ljbffr