06/18/2026 updated
100 % available
Senior Full Stack Engineer | AWS Certified (8x) | AI/LangGraph Specialist
Surat, India
Only remote
Master of computer applicationsAbout me
Senior Full Stack Engineer with 15+ years building cloud-native apps on AWS. 7x AWS certified, I specialize in AI systems using LangGraph and Anthropic Claude, plus Angular, React, and Node.js. I deliver scalable, production-ready solutions for enterprise clients worldwide.
JavaScriptPHPApplication Programming Interfaces (APIs)Cloud EngineeringApache CloudStackAWS LambdaAWS ECSFull Stack DevelopmentFront End Software DevelopmentNestJS
AI / RAG / Agentic Systems • Design and ship production RAG pipelines: document ingestion, chunking, embeddings, and vector search (pgvector, Pinecone, Weaviate). • Build LangGraph agents with tool-calling / function-calling that decide when to search vs. answer directly, backed by Anthropic Claude and OpenAI models. • Add evals (labeled Q&A sets) to measure retrieval quality, latency, and cost rather than guessing.
Front-End • HTML, CSS/SASS, Bootstrap, JavaScript (ES5/ES6), TypeScript, jQuery, Angular, RxJS, NgRx, AJAX, JSON. • TDD with Cypress and Jest.
Back-End • REST API development with NestJS and Node.js. • PHP applications using the Symfony framework. • Docker, Git, SVN, OpenAPI specifications.
AWS • Hands-on with Lambda, API Gateway, EC2, S3, VPC, Fargate, CI/CD, Load Balancer, and more. • Participate in technical planning and requirements gathering: design, code, test, troubleshoot, and document engineering software applications.
Certifications • AWS Certified Solutions Architect – Professional • AWS Certified DevOps Engineer – Professional • AWS Certified Generative AI Developer – Professional • AWS Certified Developer – Associate • AWS Certified Solutions Architect – Associate • AWS Certified SysOps Administrator – Associate • AWS Certified Data Engineer – Associate • AWS Certified AI Practitioner
Experience
Professional experience10+ years
Freelancer since2014
Languages
EnglishFluent
Project history
- Integrated LangGraph ReAct agents and Anthropic Claude to build AI-powered workflows for automated email processing and classification.
- Architected a distributed IMAP listener system on Kubernetes with lease-based coordination, per-worker concurrency limits, and dynamic pod scaling for multi-mailbox event ingestion.
- Built operational safeguards for high-concurrency background workloads, including controlled listener restart semantics, message batching, scaler redesign, and Helm/Kubernetes deployment hardening.
- Designed and developed scalable backend systems using FastAPI and NestJS, building event-driven microservices to process asynchronous workloads via Amazon SQS.
- Deployed cloud-native services on AWS using AWS CDK with automated CI/CD pipelines, ensuring code quality through testing and code reviews.
- Built 30+ production serverless APIs using AWS Lambda, API Gateway, and DynamoDB.
- Created reusable TypeScript components and services to consume REST APIs using Angular's component-based architecture.
- Implemented infrastructure as code using Terraform to automate cloud resource provisioning.
- Configured CI/CD pipelines for automated deployments using AWS CodePipeline; set up azure-pipeline.yml to run automated tests.
- Added PHPUnit tests and acceptance tests using Codeception.
- Implemented end-to-end testing using Cypress; unit testing using Jasmine and Karma.
- Developed UI for an asset tracking system using Angular, HTML5, CSS3, JavaScript, jQuery, AJAX, and JSON.
- Implemented reactive programming using RxJS, NgRx, Observables, and Subjects to simplify asynchronous workflows.
- Built responsive web pages and custom dashboards using Bootstrap, Syncfusion, and Gridster components.
- Designed and developed admin dashboards for beacon location tracking and device range monitoring using Angular.
- Built a travel agency dashboard to manage passengers, transport, events, and locations using Angular with NgRx, RxJS, and Zorro components.
- Built custom Nextcloud (PHP) applications for selling digital products, including watermarking, custom player interactions, and theme customization using the LAMP stack.
- Integrated multiple microservices using REST APIs, RabbitMQ message broker, and Keycloak SSO.
- Developed REST APIs using NestJS (Node.js) and implemented OpenAPI specifications.