Sr. Java/React Full Stack Developer (Onsite Hybrid)

NTT DATA Services•Mississauga, ON

20d•Hybrid

About The Position

NTT DATA is seeking a Sr. Java/React Full Stack Developer to join their team. This role involves designing, developing, and operating end-to-end full-stack applications, including front-end user interfaces, back-end services, and supporting infrastructure. The position requires ownership of the complete software development lifecycle, from system design to production support, utilizing modern GitOps-driven SDLC practices for reliable deployments. The developer will build scalable, highly performant, and resilient distributed systems with a focus on reliability and operational efficiency, participating in production operations under "you build it, you run it" principles. Collaboration with product managers, business stakeholders, and cross-functional teams is key to translating requirements into technical solutions. The role also includes developing responsive, component-based user interfaces with modern front-end technologies, designing and implementing secure, scalable APIs and backend services using REST/JSON, and ensuring backward compatibility and maintainability. Experience with DevOps, CI/CD pipelines, Jenkins, Kubernetes-based environments, and developing automated workflows and scripts is essential. The role also involves conducting various types of testing to ensure application stability and performance.

Requirements

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.

Nice To Haves

Machine learning and deep learning/ LLM knowledge

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.
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.