Full Stack Engineer

Job Summary

We are seeking a Full Stack Engineer with strong expertise in Java, Spring Boot, and React.js to develop and maintain scalable enterprise applications that support critical business functions. The ideal candidate will have hands on experience across the full software development lifecycle, including application design, backend and frontend development, API integration, testing, and deployment.

This role requires a highly collaborative engineer who can translate business requirements into robust technical solutions, drive development best practices, and contribute to the successful delivery of modern digital applications. Experience with cloud technologies, microservices, DevOps practices, and emerging AI driven solutions is highly valued.

• Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

About the Role

As a Full Stack Engineer, you will be responsible for designing, developing, and enhancing enterprise applications using Java, Spring Boot, React.js, and related technologies. You will build and integrate RESTful APIs and microservices, troubleshoot and resolve technical issues, perform code reviews, and optimize application performance to ensure reliable and scalable solutions.

You will collaborate closely with product owners, business stakeholders, architects, and distributed development teams to deliver high quality software solutions in an Agile environment. The role involves contributing to technical design discussions, supporting development best practices, and driving continuous improvement initiatives across the software development lifecycle.

The ideal candidate will bring strong experience with cloud platforms, CI/CD pipelines, source control, containerization technologies, and modern application architectures. Exposure to AI Chatbots, Retrieval Augmented Generation (RAG), Large Language Models (LLMs), and Generative AI initiatives will be considered a strong advantage.

This is an excellent opportunity for a hands on engineer who enjoys solving complex technical challenges, contributing to innovative projects, and building scalable applications that deliver meaningful business impact.

In This Role, You Will

Responsibilities:

• Design, develop, and maintain full-stack enterprise applications using Java, Spring Boot, React.js, and related technologies.
• Build, enhance, and integrate RESTful APIs and microservices that support business-critical applications.
• Perform hands-on coding, debugging, testing, code reviews, and application performance optimization.
• Provide technical guidance to offshore development teams by resolving technical challenges and supporting successful delivery.
• Analyze business requirements and translate them into scalable and maintainable technical solutions.
• Participate in Agile ceremonies and contribute to continuous improvement initiatives.
• Follow best practices for code quality, security, testing, and software development lifecycle processes.
• Contribute to AI chatbot and Retrieval-Augmented Generation (RAG) initiatives when applicable.

Work Model

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role''s business requirements, this is a hybrid position requiring 3 days per week onsite and 2 days remote at a client or Cognizant office in one of the following locations:

• Basking Ridge, New Jersey
• Irving, Texas
• Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

Required Qualifications

• 8+ years of experience in full stack application development with strong hands-on expertise in Java, Spring Boot, React.js, and enterprise application development.
• Strong hands-on experience in Java application development using Spring Boot.
• Proven experience developing full-stack applications with React.js, Redux, JavaScript, HTML5, and CSS3.
• Experience designing, developing, and integrating RESTful APIs and microservices.
• Strong understanding of software development best practices, debugging, troubleshooting, and performance tuning.
• Experience with unit testing frameworks and code quality standards.
• Hands-on experience with Git, CI/CD pipelines, and DevOps practices.
• Experience working within Agile/Scrum delivery environments.
• Ability to analyze requirements, design technical solutions, and work independently.
• Strong communication and collaboration skills with onsite and offshore teams.
• Experience implementing AI Chatbots and Retrieval-Augmented Generation (RAG) solutions.
• Exposure to Generative AI technologies and Large Language Model (LLM) integrations.
• Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Knowledge of Docker, Kubernetes, and containerized application deployments.
• Experience mentoring developers and leading technical discussions.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

• Medical/Dental/Vision/Life Insurance
• Paid holidays plus Paid Time Off
• 401(k) plan and contributions
• Long-term/Short-term Disability
• Paid Parental Leave
• Employee Stock Purchase Plan

Additional employment information

Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.

Applicants for US based positions must be currently authorized to work for any employer in the United States. The company is unable to provide employment-based immigration sponsorship for US based positions.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com for roles based in the Americas or CareersIndia2@cognizant.com for roles based in India.

About Cognizant:

Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization's unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.