vijay kasar
vijay kasar

Lead Full Stack Developer

Open to offers · Member since 31 Oct 2026
Location
India
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Lead

About

Professional summary

I am a Full Stack Developer and Lead Engineer with more than six years of experience building scalable, high-performance web applications across aerospace, healthcare, automotive, hospitality, and recruitment domains.

I specialize in backend engineering with Node.js, TypeScript, Express.js, and NestJS. I design secure RESTful and GraphQL APIs, build event-driven services, and optimize database schemas and queries for reliability and performance.

I have strong hands-on experience with AWS serverless and cloud services, including Lambda, AppSync, API Gateway, Cognito, S3, EventBridge, SQS, CloudWatch, and CDK. I have delivered cloud-native platforms that integrate enterprise systems and support high-volume data processing.

I also work with React.js to deliver full-stack solutions and have experience with PostgreSQL, MongoDB, MySQL, Oracle, Redis, Docker, CI/CD pipelines, and GitHub Actions. My work includes authentication, role-based access control, observability, production support, and deployment automation.

As a Lead Engineer, I mentor junior developers and contribute to project planning, sprint reviews, code reviews, troubleshooting, and technical discussions. I am recognized for project execution, innovation, teamwork, and technical leadership.

Skills

43 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Collaboration

Monitoring

Experience

Career history

Lead Engineer Dentsu Global Services

I lead the development of a cloud-native GraphQL backend platform for Leading Hotels of the World. I develop and maintain APIs using AWS AppSync, TypeScript, Node.js, and JavaScript resolvers, integrating enterprise systems such as Contentful, SynXis, Auth0, Cloudinary, Leonardo, and internal EDP/Boomi services.

I design AWS CDK infrastructure and serverless services using Lambda, API Gateway, S3, EventBridge, OpenSearch, Redis, SSM Parameter Store, and AppConfig. I also implement event-driven indexing workflows, monitoring through CloudWatch and X-Ray, and contribute to code reviews, production support, troubleshooting, sprint planning, and technical discussions.

I also worked as a Backend Developer on a Maruti Suzuki raw-material analytics platform. I built Node.js and TypeScript services, REST APIs, PostgreSQL data models, CSV/Excel processing workflows, and AWS integrations for secure, high-volume procurement data processing.

Backend Developer Happiest Minds Technologies

I developed backend services and serverless solutions for multiple enterprise applications. For the Smartcar Reporting project, I built AWS Lambda-based services to process electric vehicle charging data, integrated the Smartcar API, implemented batch workflows, generated reports with Chart.js, and automated email delivery through SendGrid.

I also developed backend APIs for Career Edge, a multi-tenant job portal for job seekers and employers. My work included Node.js and Express.js API development, AWS Cognito authentication, tenant isolation, role-based access control, MongoDB query optimization, load testing, bug fixing, and post-release support.

I supported CI/CD deployments with GitHub Actions and designed scalable, stateless, event-driven services that improved performance, reliability, and operational efficiency.

Backend Developer HCL Technologies

I worked on Medigent, a modular healthcare administration solution supporting claims, payments, beneficiary management, and provider portals. I developed enterprise-grade REST APIs using Node.js and TypeScript for secure healthcare workflows.

I implemented authentication and authorization using Keycloak, integrated and optimized Oracle database queries, and improved application observability through centralized logging and monitoring. I containerized services with Docker to support consistent deployments.

I collaborated with cross-functional teams to meet healthcare compliance and security requirements, supported production releases, and resolved performance and security issues.

Full Stack Developer PDRL (Passenger Drone Research Pvt Ltd)

I developed AeroCapture, a cloud-enabled platform for planning and executing drone missions with high-resolution aerial image capture and AI-based object detection support. I built backend services using Node.js, Express.js, and PostgreSQL for mission planning, scheduling, image uploads, and data retrieval.

I created responsive React.js frontend components for mission dashboards and designed scalable REST APIs for platform operations. I integrated cloud storage and processing workflows for aerial imagery.

I deployed and managed the application on DigitalOcean using CI/CD pipelines, collaborated with AI and analytics teams on image-processing workflows, and ensured application security, performance, and scalability.

Education

Learning history
No education data available.

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