Senior Java/React Full-Stack Engineer

Capgemini; Chicago (IL); On-site; USD 69,000 - 162,000; Full time

Job summary

Capgemini provides a platform where you can shape your career while collaborating with global teams to deliver innovative technology solutions. You will contribute to design, development, and continuous improvement of scalable, high‑quality applications in a dynamic environment.

You will work across the full stack, building backend services with Java, frontend UIs with React, and cloud‑native solutions using Spring Boot and microservices.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of software development experience.
• Strong Java, API, and distributed applications development using Spring boot and Microservices.
• Strong frontend development experience with React, JavaScript, TypeScript, HTML, and CSS.
• Experience with SQL and NoSQL databases.
• Understanding of AI APIs like Open AI, Anthropic, Gemini for implementing AI use cases.
• Experience with asynchronous programming and multithreading concepts.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Strong understanding of software development best practices and Agile methodologies.

Responsibilities

• Design, develop, and maintain backend applications and services using Java.
• Writing code to build complex core components and frameworks.
• Design, develop, and deploy cloud-native solutions, including microservices and serverless paradigms using Spring Boot and Java.
• Build responsive and modern frontend applications using React, Javascript, Typescript, Angular, and UI technologies.
• Proven track record in microservices, event-driven architecture (Kafka/RabbitMQ), and API design (REST/GraphQL).
• Implement generative AI APIs and leverage LLMs for business applications.
• Develop and integrate APIs and web services.
• Collaborate with product managers, designers, engineers, and other integrated teams to deliver end-to-end solutions.
• Strong skills in relational databases (Oracle, POstgres) and NoSQL solutions (MongoDB, Redis).
• Develop and integrate Python components for services, automation, or data processing.
• Troubleshoot, debug, and improve application performance.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and technical discussions.
• Support application scalability, reliability, and security.
• Work with cloud platforms and CI/CD pipelines.
• Stay current with modern development tools and technologies.

Skills

Java backend

React frontend

Spring Boot

Microservices

API design

Cloud platforms

AI APIs

SQL databases

NoSQL databases

Asynchronous programming

CI/CD

Education

Bachelor's degree

Tools

Kafka

RabbitMQ

PostgreSQL

Oracle

MongoDB

Redis

Python

AWS

Azure

GCP

Job description

Capgemini provides a platform where you can shape your career while collaborating with global teams to deliver innovative technology solutions. You will contribute to design, development, and continuous improvement of scalable, high‑quality applications in a dynamic environment.

You will work across the full stack, building backend services with Java, frontend UIs with React, and cloud‑native solutions using Spring Boot and microservices.