Java Full Stack Developer (Senior/Lead)

Cognizant Technology Solutions Corporation; Plano (TX); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Health coverage

Paid time off

401(k) plan

Disability insurance

Parental leave

Employee stock purchase plan

Job summary

Cognizant Technology Solutions Corporation is seeking a Senior/Lead Java Full Stack Developer to design, build, and scale API-first, cloud-native applications using Java, Spring Boot, React, and AWS. You will collaborate with product, design, data, architecture, and risk stakeholders to deliver secure, reliable technology solutions.

Based in New York City, this onsite role requires 5 days per week in the client or Cognizant office.

Qualifications

• 8+ years of software engineering, cloud-native AWS experience.
• Strong Java 11/17/21, Spring Boot, microservices, REST APIs.
• Full-stack with React/TypeScript/JavaScript and Node.js.

Responsibilities

• Design, build, and scale cloud-native, API-first apps on AWS.
• Collaborate with product, design, data, and architecture teams.
• Establish CI/CD, IaC, observability, and security practices.
• Deliver secure, reliable technology solutions at scale.

Skills

Java

Spring Boot

Microservices

REST APIs

AWS

CI/CD

TypeScript/JavaScript

React

Education

Bachelor's degree in Computer Science or related field

Tools

Docker

Kubernetes

ECS/EKS

Terraform

OpenTelemetry

Job description

About the role

As a Java Full Stack Developer (Senior/Lead), you will make an impact by designing, building, and scaling API-first, cloud-native applications and integrations using modern Java, AWS, React, and AI-assisted technologies. You will work collaboratively with product, design, data, architecture, and risk and control stakeholders to deliver secure, scalable, and reliable technology solutions.

In this role, you will:

• Design, build, and scale cloud-native, API-first applications using Java, Spring Boot, microservices, REST APIs, and event-driven architecture.
• Develop end-to-end capabilities across the technology stack using React, TypeScript/JavaScript, and Node.js on the front end and Java/Spring Boot on the back end.
• Build and operate scalable solutions on AWS using technologies such as Docker, Kubernetes, ECS/EKS, serverless computing, Kafka, SNS, and SQS.
• Integrate AI capabilities using technologies and approaches such as agentic AI, LLMs/SLMs, MCP, RAG, agent orchestration frameworks, and AI-assisted automation.
• Establish strong engineering practices across CI/CD, automated and performance testing, infrastructure as code, observability, security, and application performance.

Work model

At Cognizant, we strive to provide flexibility wherever possible, and we are here to support a healthy work-life balance through our various wellbeing programs. Based on this role's business requirements, this is an onsite position requiring 5 days a week in a client or Cognizant office in New York City, New York.

The working arrangements for this role are accurate as of the date of posting. This may change based on the project you're engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

What you need to have to be considered

• 8+ years of professional software engineering experience, including experience designing or architecting cloud-native services on AWS.
• Strong hands‑on expertise with Java 11/17/21, Spring Boot, microservices, REST APIs, JSON, OpenAPI, asynchronous messaging, and API integration patterns.
• Full‑stack development experience with React, TypeScript/JavaScript, Node.js, and Java/Spring Boot, including scalable API and microservices development.
• Experience designing and deploying cloud-native applications on AWS using Docker, Kubernetes, ECS/EKS, serverless technologies, Kafka, SNS/SQS, SQL, and NoSQL databases.
• Strong engineering experience with CI/CD, infrastructure as code such as Terraform or CloudFormation, automated testing, observability, performance tuning, and application security.

These will help you stand out

• Hands‑on experience integrating generative or agentic AI technologies, including LLMs/SLMs, RAG, MCP, agent orchestration frameworks, or similar AI capabilities.
• Python experience supporting LLM engineering, data processing, automation, evaluation frameworks, or lightweight services.
• Experience with micro frontends, CEN/XFS APIs, WebSockets, Redis, DynamoDB, DocumentDB, PostgreSQL, MySQL, or Aurora.
• Experience with observability and monitoring platforms such as Splunk, Dynatrace, Datadog, CloudWatch, OpenTelemetry, or Grafana.
• Knowledge of AI-assisted development tools such as GitHub Copilot or Claude, prompt engineering, and/or experience within commercial banking.

Salary and Other Compensation

The annual salary for this position depends on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.

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