About the client: Our customer is the European online car market with over 30 million monthly users, operating in 18 countries. As a Senior Fullstack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers. Responsibilities: Design and develop full-stack cloud solutions from technical analysis to integration testing. Mentor junior engineers on design patterns, code reviews, testing practices, and scalable architecture. Establish documentation standards across teams. Conduct root cause analysis and collaborate with production support to resolve issues. Evaluate third-party software with business and engineering teams. Maintain CI/CD pipelines for applications. Requirements: Work hours aligned with Canadian timezone (EDT). 4-5+ years of experience with C#, Java, React, and Scala for web application development. Proficiency with Java/Spring Boot for building APIs and web applications. Experience with Azure and AWS, including migration from Azure to AWS. Familiarity with Kafka, SQL, and performance optimization. Strong understanding of event-driven and microservices architecture. Experience with DataDog, Application Insights, and responsive front-end design using React. Background in high-traffic websites, performance tuning, and security. Effective communication of technical solutions. Expertise in unit, component, and integration testing. Experience with GitHub, Azure DevOps, and JIRA in distributed teams. Solid grasp of agile methodologies, including ScrumBan/Kanban and Gitflow. Preferred Skills: Experience with Cloud hosting (preferably AWS). Docker/containers. AWS RDS/SQL Database. AWS Lambda. AWS CloudFront. Nice to Have: Experience with observability tools like Datadog. Team Setup & Work Style: Kanban methodology using Jira. Slack for communication. Team size: 5-8 developers, PM, and UX designer. Ownership approach: "You build it, you run it" — development, releases, and monitoring. CI/CD pipelines with Jenkins/GitHub Actions. Peer code reviews with SonarCloud. Observability and alerting with Datadog/Opsgenie. We offer: Flexible working arrangements: remote, office-based, or hybrid. Competitive salary and benefits. Personalized career growth opportunities. Professional development tools including mentorship, tech talks, and trainings. Active tech communities and knowledge sharing. Education reimbursement. Anniversary gifts, corporate events, and team-building activities. Other location-specific benefits. Note: Not applicable for freelancers. #J-18808-Ljbffr