08/25/2025 updated
EN
100 % available
Senior Full-Stack / LLM Engineer with 10+ years experience in React, Java, and AI technologies
Brooklyn, USA
Only remote
Master's Degree in Computer ScienceJava (Programming Language)JavaScriptArtificial IntelligenceAmazon Web ServicesAmazon S3Cloud ComputingDatabasesContinuous IntegrationDevOpsAmazon DynamoDBGitHubPostgreSQLMongoDBMySQLNode.js
Full-Stack Development
Extensive experience with Java, Spring Boot, React, and modern frontend frameworks for building scalable web applications with optimized performance
LLM/AI Engineering
Expertise in implementing LLM-enabled systems using OpenAI, LangChain, and Pinecone for knowledge retrieval and documentation search
Cloud Infrastructure
Proficiency with AWS services including Lambda, Cognito, Amplify, S3, and CDK, along with Docker and Jenkins for deployment and CI/CD
Frontend Technologies
Advanced knowledge of React ecosystem including React Hook Form, Redux, Next.js, TypeScript, and component libraries
Database Management
Experience with various database systems including PostgreSQL, MySQL, MongoDB, and DynamoDB
Testing Frameworks
Implementation of comprehensive testing strategies using Jest, Cypress, and React Testing Library
GraphQL Development
Creation of GraphQL servers using Apollo and Node.js for efficient data querying and reduced overfetching
DevOps & Tooling
Proficiency with Git, GitHub, GitLab, Bitbucket, and Agile/Scrum methodologies for efficient development workflows
Extensive experience with Java, Spring Boot, React, and modern frontend frameworks for building scalable web applications with optimized performance
LLM/AI Engineering
Expertise in implementing LLM-enabled systems using OpenAI, LangChain, and Pinecone for knowledge retrieval and documentation search
Cloud Infrastructure
Proficiency with AWS services including Lambda, Cognito, Amplify, S3, and CDK, along with Docker and Jenkins for deployment and CI/CD
Frontend Technologies
Advanced knowledge of React ecosystem including React Hook Form, Redux, Next.js, TypeScript, and component libraries
Database Management
Experience with various database systems including PostgreSQL, MySQL, MongoDB, and DynamoDB
Testing Frameworks
Implementation of comprehensive testing strategies using Jest, Cypress, and React Testing Library
GraphQL Development
Creation of GraphQL servers using Apollo and Node.js for efficient data querying and reduced overfetching
DevOps & Tooling
Proficiency with Git, GitHub, GitLab, Bitbucket, and Agile/Scrum methodologies for efficient development workflows
Experience
Professional experience10+ years
Freelancer since2025
Languages
EnglishNative speaker
Project history
Built analytics dashboard with React, Express, and Highcharts. Developed scalable Java Spring Boot APIs. Designed and deployed LLM-enabled knowledge retrieval system using OpenAI, LangChain, and Pinecone. Integrated React front-end with RAG pipeline for customer support automation.
Led end-to-end development of Twitter marketing web applications using React, TypeScript, and Storybook. Integrated Contentful as a headless CMS. Collaborated with Twitter Partner Web team in Agile sprints. Developed reusable React components documented via Storybook.
Migrated frontend codebase from JavaScript to TypeScript. Engineered UI components using React, React Hook Form, Redux Thunk, and Material UI. Developed GraphQL server using Node.js and Apollo Server. Implemented Jest and Cypress tests for CI/CD pipelines.