Java ReactJS AWS Developer (8 or Above yrs of experienced professionals)

Capgemini•Chicago, IL

23h•Onsite

About The Position

Capgemini is seeking a highly skilled Senior Java Full Stack Engineer to design, develop, and maintain scalable, high-performance enterprise applications. The role involves strong experience across Java-based microservices, modern front-end development using React, cloud-native architectures on AWS, and end-to-end testing including UI automation with Playwright. The ideal candidate will also be proficient in CI/CD and modern SDLC practices such as TDD and BDD. Capgemini empowers its employees to shape their careers, fostering a collaborative community and helping leading organizations unlock technology's value to build a more sustainable and inclusive world. This position is located onsite in Chicago, IL.

Requirements

Strong Java expertise (Java 17/21/25, Spring Boot, Microservices)
Hands-on React.js experience for front-end development
Experience building RESTful APIs and full-stack applications
Strong experience with AWS Native services (Lambda, EMR, Spark, etc.)
Experience with Docker and Kubernetes/OpenShift
Hands-on experience with Drools Rule Engine
Strong knowledge of Relational (SQL) and NoSQL databases
Strong experience in TDD (JUnit) and BDD (Cucumber)
Hands-on experience with Playwright for UI and end-to-end test automation
Experience writing unit, integration, and service-level tests
CI/CD tools (Jenkins)
GitHub and version control
Artifact Repository tools (Artifactory)
Infrastructure as Code (Terraform, CloudFormation, Ansible)
Experience with Kafka, RabbitMQ, MQ, Kinesis, or similar messaging systems

Nice To Haves

AWS Architect Certification
Experience with performance tuning and monitoring tools
Exposure to large-scale distributed systems
Experience building cloud-native, event-driven architectures

Responsibilities

Design and develop highly available, scalable applications using Java (17/21/25) and modern design patterns
Build and maintain RESTful APIs and microservices architecture using Spring Boot
Contribute to system design, architecture decisions, and engineering best practices
Ensure high availability, performance, and scalability of backend services
Design and develop responsive, reusable front-end components using React.js
Collaborate closely with UX/UI designers and backend teams to deliver seamless user experiences
Integrate front-end applications with backend APIs
Apply front-end best practices including state management, component-based architecture, and performance optimization
Implement unit, integration, and service-level tests for backend services
Apply TDD using JUnit and BDD using Cucumber
Develop and maintain end-to-end UI automation tests using Playwright for React applications
Ensure high test coverage across backend and frontend layers
Build and maintain CI/CD pipelines (Jenkins, GitHub) to automate build, test, and deployment
Deploy and manage applications on AWS (Lambda, EMR, Spark, etc.)
Containerize applications using Docker and orchestrate using Kubernetes / OpenShift (OCP preferred)
Provision infrastructure using Terraform, CloudFormation, and Ansible
Collaborate within Agile / Scrum teams to deliver high-quality software solutions
Work closely with product owners, architects, and business stakeholders
Monitor application performance and troubleshoot production issues
Act as a technical mentor and contribute to continuous improvement initiatives

Benefits

Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave
Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
Life and disability insurance
Employee assistance programs
Other benefits as provided by local policy and eligibility

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