Cognizant
Posted 2d ago

Fullstack Developer

Cognizant
United States
OnsiteFull Time
Responsibilities
  • designing applications
  • building services
  • mentoring engineers
Requirements
  • Requires 10–12 years of full-stack application development experience
  • Node.js
  • JavaScript
  • TypeScript, React, AWS, APIs
  • Microservices
  • Architecture
  • Technical leadership, and GenAI solution experience
Technical tools mentioned
Node.jsJavaScriptTypeScriptReactJSReduxGraphQLAWS LambdaAWS API GatewayAmazon S3Amazon DynamoDBAmazon CloudFrontAmazon CognitoAWS CloudFormationOpenAI GPTAzure OpenAIClaudeAmazon BedrockPineconeOpenSearchWeaviateChromaDBLangChainLangGraphSemantic KernelDockerKubernetesAmazon EKSAWS AppSyncAmazon CloudWatchAWS X-Ray

Job description

We’re hiring!

 

At Cognizant we have an ideal opportunity for you to be part of one of the largest companies in the digital sector worldwide. A Great Place To Work where we look for people who contribute new ideas, experiencing a dynamic and growing environment. At Cognizant we promote an inclusive culture, where we value different perspectives providing career growth and development opportunities. #WelcomeToCognizant!

We have an exciting opportunity for an exceptional individual to work supporting one of our clients as Fullstack Developer


Experience: 5+ years

Role Summary

We are seeking a Technical Lead / Senior Engineer with strong expertise in Node.js, ReactJS, AWS Cloud, and Generative AI technologies. The ideal candidate should possess a solution-oriented mindset, drive architecture and design decisions, lead engineering teams, and deliver scalable AI-enabled digital solutions.

Must-Have Skills

·         10–12 years of experience in Full Stack Application Development

·         Expertise in Node.js, JavaScript (ES6+), TypeScript

·         Strong hands-on experience with ReactJS, Redux, Hooks, and modern UI frameworks

·         Experience in designing and developing REST APIs, GraphQL APIs, and Microservices

·         Strong knowledge of AWS Cloud Services (Lambda, API Gateway, S3, DynamoDB, CloudFront, Cognito)

·         Experience with Serverless Architecture, CloudFormation, and CI/CD pipelines

·         Strong solutioning, architecture, and technical leadership experience

·         Experience mentoring development teams and conducting design/code reviews

 

AI / GenAI Skills (Must Have / Preferred)

 

·         Experience integrating LLMs such as OpenAI GPT, Azure OpenAI, Claude, or Amazon Bedrock

·         Knowledge of Prompt Engineering and AI application design patterns

·         Experience building AI-powered chatbots, copilots, or intelligent assistants

·         Understanding of RAG (Retrieval-Augmented Generation) architectures

·         Experience integrating AI services through APIs and SDKs

·         Familiarity with Vector Databases (Pinecone, OpenSearch, Weaviate, ChromaDB, etc.)

·         Knowledge of AI security, governance, responsible AI, and model evaluation

 

Key Responsibilities

 

·         Lead the design and development of full-stack and AI-enabled applications.

·         Define architecture, technical roadmaps, and engineering best practices.

·         Build scalable backend services using Node.js and responsive UIs using ReactJS.

·         Design and implement GenAI solutions leveraging LLMs, RAG, and vector search.

·         Collaborate with business stakeholders to translate requirements into technical solutions.

·         Drive cloud-native deployments, performance optimization, security, and observability.

·         Mentor engineers and provide technical leadership across delivery teams.

 

Nice to Have

 

·         AWS Bedrock, LangChain, LangGraph, Semantic Kernel

·         Docker, Kubernetes, EKS

·         Event-Driven Architecture

·         AWS AppSync, CloudWatch, X-Ray

·         MLOps and AI model monitoring

Why Cognizant?

 

Improve your career in one of the largest and fastest growing IT services providers worldwide

Receive ongoing support and funding with training and development plans

Have a highly competitive benefits and salary package

Get the opportunity to work for leading global companies

We are committed to respecting human rights and build a better future by helping your minds and the environment

We invest in people and their wellbeing. 

We create conditions for everyone to thrive. We do not discriminate based on race, religion, color, sex, age, disability, nationality, sexual orientation, gender identity or expression, or for any other reason covered.


Cognizant US Corporation is an Equal Opportunity Employer Minority/Female/Disability/Veteran. If you require accessibility assistance applying for open positions in the US, please send an email with your request to [email protected]

About Cognizant

Provides global information technology and business process outsourcing services.

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