We are currently seeking a Sr. Java/React Full Stack Developer (Onsite Hybrid) to join our team in Mississauga, Ontario (CA-ON), Canada (CA). Job Responsibilities Design, develop, and operate end-to-end full-stack applications including front-end user interfaces, back-end services, and supporting infrastructure. Own the complete software development lifecycle including system design, development, testing, deployment, monitoring, and production support. Build and operate applications using modern GitOps-driven SDLC practices to ensure reliable and repeatable deployments. Develop scalable, highly performant, and resilient distributed systems with strong focus on reliability and operational efficiency. Participate in production operations including monitoring, incident resolution, root cause analysis, and system optimization following “you build it, you run it” principles. Collaborate with product managers, business stakeholders, and cross-functional teams to translate functional requirements into robust technical solutions. Develop responsive and component-based user interfaces using modern front-end technologies and frameworks. Design and implement secure and scalable APIs and backend services using REST/JSON standards. Ensure backward compatibility, version control, and maintainability in API design and service development. Solid in DevOps with hands on knowledge in CI/CD pipelines, Jenkins and related toolset. Work with Kubernetes-based environments to deploy, scale, and manage containerized applications. Develop automated workflows and scripts to streamline repeatable development, deployment, and operational tasks. Conduct testing including UI testing, component testing, and integration testing to ensure application stability and performance. Basic Qualifications 8+ years of experience working in Kubernetes-based containerized environments including deployment, scaling, and operational management. 8+ years of experience in software development, with strong focus on full-stack application development. 8+ years of experience with Java-based backend development. 8+ years of experience developing modern front-end applications using React or similar frameworks. 8+ years of experience building scalable APIs and backend services using REST/JSON architectures. 8+ years of experience implementing CI/CD pipelines, GitOps, DevOps tooling, at least hyperscaler, and automated deployment processes with infra as code (IaC) understanding. 8+ years of experience building and supporting production-grade systems with high availability and operational reliability. 8+ years of experience working in automation frameworks for workflow orchestration and operational efficiency. Preferred Skills Machine learning and deep learning/LLM knowledge. Degree Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent work experience. Equal Opportunity Employer NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here ( If you'd like more information on your EEO rights under the law, please click here ( For Pay Transparency information, please click here ( #J-18808-Ljbffr