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I’m a Full Stack Developer with 6 years of experience designing and deploying scalable web applications across AgriTech, e-commerce, and SaaS domains. Skilled in Java, Spring Boot, Node.js, React, and AWS, I specialize in building secure, high-performance systems with microservices architecture. I’m passionate about solving complex backend challenges, optimizing APIs, and delivering seamless user experiences through clean, maintainable code and collaboration in Agile environments.…I’m a Full Stack Developer with 6 years of experience designing and deploying scalable web applications across AgriTech, e-commerce, and SaaS domains. Skilled in Java, Spring Boot, Node.js, React, and AWS, I specialize in building secure, high-performance systems with microservices architecture. I’m passionate about solving complex backend challenges, optimizing APIs, and delivering seamless user experiences through clean, maintainable code and collaboration in Agile environments.

Debashish Kar

Full Stack Developer, Back-End Developer, Front-End Developer, +4

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I’m a Full Stack Developer with 6 years of experience designing and deploying scalable web applications across AgriTech, e-commerce, and SaaS domains. Skilled in Java, Spring Boot, Node.js, React, and AWS, I specialize in building secure, high-performance systems with microservices architecture. I’m passionate about solving complex backend challenges, optimizing APIs, and delivering seamless user experiences through clean, maintainable code and collaboration in Agile environments.…I’m a Full Stack Developer with 6 years of experience designing and deploying scalable web applications across AgriTech, e-commerce, and SaaS domains. Skilled in Java, Spring Boot, Node.js, React, and AWS, I specialize in building secure, high-performance systems with microservices architecture. I’m passionate about solving complex backend challenges, optimizing APIs, and delivering seamless user experiences through clean, maintainable code and collaboration in Agile environments.

Available to hire

I’m a Full Stack Developer with 6 years of experience designing and deploying scalable web applications across AgriTech, e-commerce, and SaaS domains. Skilled in Java, Spring Boot, Node.js, React, and AWS, I specialize in building secure, high-performance systems with microservices architecture. I’m passionate about solving complex backend challenges, optimizing APIs, and delivering seamless user experiences through clean, maintainable code and collaboration in Agile environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Full Stack Developer at Texas A&M AgriLife Research

January 1, 2024 - Present

Architected a crop monitoring platform using React.js and Redux, delivering 12 interactive dashboards that streamline field reporting across 30 counties. Implemented Spring Boot and .NET Core microservices, reducing API latency by 160 ms and supporting 100+ field scientists. Optimized PostgreSQL schemas for high-volume climate and soil datasets, accelerating complex query responses by 4 seconds across 3 research domains. Secured workflows with JWT authentication and OWASP-aligned practices, enabling role-based access for 8 groups and full audit compliance. Automated deployment pipelines with GitHub Actions, Docker, and AWS Lambda, saving 15+ hours/month in release overhead.

Software Engineer at Copart, Inc.

November 1, 2023 - October 8, 2025

Developed a vehicle listing dashboard with React.js and NgRx, coordinating with UI/UX teams to launch 15 reusable components across 2M+ daily auction views. Formulated a .NET Core microservice for real-time bidding, optimizing concurrent transaction flow for 95,000+ global users and reducing response times under heavy traffic. Integrated a PostgreSQL-backed payment module with ACID-compliant workflows, supporting $150M+ monthly transactions. Orchestrated containerized deployments using Docker and Kubernetes across three zones, reducing deployment lead time by 4 hours per cycle. Implemented Cypress-based end-to-end testing, improving test coverage to 94% and stabilizing releases during peak events.

Software Developer at Airbnb India

July 1, 2021 - October 8, 2025

Constructed a booking calendar in React.js with live availability sync, powering 200,000+ listings and reducing checkout time during peak traffic. Built a Node.js + Express microservice for host verification, scaling onboarding for 1,500+ new hosts per month across tier-2 markets. Optimized PostgreSQL indexing and partitioning on high-load endpoints, cutting query latency by 220 ms and improving search reliability during regional spikes. Implemented OAuth 2.0-secure APIs with OWASP-aligned flows, reducing fraudulent activity and payment tickets. Provisioned containerized services with Docker on AWS EC2 and automated CI/CD pipelines in Azure DevOps for daily rollouts across 3 release environments.

Software Engineer at Larsen & Toubro Infotech

December 1, 2019 - October 8, 2025

Launched a banking loan automation workflow using Spring Boot and PostgreSQL, scaling to 5,000+ concurrent users and eliminating manual input delays during peak hours. Configured a serverless e-commerce system using AWS Lambda, S3, and API Gateway to support multi-region deployment across 4 zones. Spearheaded Cypress-based regression automation for a telecom provisioning platform, improving test cycle efficiency and shortening sprint release timelines from 14 to 7 days.

Graduate Researcher at The University of Texas at Arlington

December 1, 2022 - October 8, 2025

Assembled a Python-based data pipeline to automate preprocessing for 10,000+ machine learning records, streamlining training readiness for computer vision experiments. Rolled out a D3.js-powered live academic metric dashboard, enabling real-time data visualization across 3 departmental teams. Reworked Node.js RESTful APIs to reduce average latency by 40 ms and improve compute resource utilization in scientific apps. Optimized PostgreSQL queries for 4 analytics workloads, cutting retrieval times and improving data reliability for journal-grade insights. Coordinated with professors and PhD researchers to align data models and maintain audit readiness for 7 projects.

Software Engineer at Airbnb India

July 1, 2021 - October 8, 2025

Full Stack Developer at Texas A&M AgriLife Research

January 1, 2024 - Present

Architected a cross-functional crop-monitoring platform using React.js and Redux, delivering 12 real-time dashboards across 30 counties. Implemented Spring Boot and .NET Core microservices, cutting API latency by 160 ms to support 100+ field scientists. Optimized PostgreSQL schemas and indexes for high-volume climate and soil datasets, speeding complex queries by 4 seconds across 3 domains. Secured research workflows with JWT-based authentication and OWASP-aligned practices, enabling role-based access for 8 groups and full audit compliance. Automated deployment pipelines with GitHub Actions, Docker, and AWS Lambda, reducing 10 scientific module deployments and saving 15+ hours per month in release overhead.

Software Engineer at Copart, Inc.

November 1, 2023 - October 8, 2025

Built a vehicle listing dashboard with React.js and NgRx, coordinating with UI/UX to launch 15 reusable components that scale to 2M+ daily auction views. Created a .NET Core microservice for real-time bidding, optimizing concurrent transactions for 95,000+ global users. Integrated a PostgreSQL-backed payment module with ACID-compliant workflows supporting $150M+ monthly transactions with minimized failure risk. Orchestrated containerized deployments with Docker and Kubernetes, enabling multi-region scaling across 3 zones and reducing deployment lead time by 4 hours per cycle. Achieved 94% test coverage through Cypress/Jest-based end-to-end testing and stabilized production releases during peak events.

Graduate Researcher at The University of Texas at Arlington

December 1, 2022 - October 8, 2025

Assembled a Python-based data pipeline to automate preprocessing for 10,000+ machine learning records, streamlining training readiness for computer vision experiments. Rolled out a D3.js-powered dashboard for live academic metrics, enabling real-time data visualization and expedited progress reporting across 3 departmental research teams. Reconstructed backend performance of Node.js RESTful APIs, lowering latency and improving resource utilization in scientific applications.

Software Developer at Airbnb India

July 1, 2021 - October 8, 2025

Constructed a booking calendar in React.js with live availability sync, deploying 18 reusable components powering 200,000+ listings and reducing checkout time during high-traffic events. Programmed a Node.js + Express.js microservice for host verification, coordinating onboarding intake to scale 1,500+ new hosts per month across tier-2 markets.

Software Engineer at Larsen & Toubro Infotech

December 1, 2019 - October 8, 2025

Launched an insurance claims portal with React.js, partnering with UX to deliver 10+ responsive UI components, improving user interaction and reducing support requests. Engineered Spring Boot services and PostgreSQL schemas for a banking loan automation workflow, scaling to 5,000+ concurrent users. Configured a serverless e-commerce system using AWS Lambda, S3, and API Gateway across four deployment zones, reducing manual input delays during peak hours.

Full Stack Developer at Texas A&M AgriLife Research

January 1, 2024 - November 10, 2025

Architected a crop monitoring platform using React.js and Redux, delivering 12 interactive dashboards that streamline field reporting across 30 counties. Implemented Spring Boot and .NET Core microservices, reducing API latency by 160 ms and supporting 100+ field scientists. Optimized PostgreSQL schemas and indexes for high-volume climate and soil datasets, accelerating complex query responses by 4 seconds across 3 research domains. Secured research workflows with JWT-based authentication and OWASP-aligned practices, enabling role-based access for 8 groups and achieving full audit compliance. Automated deployment of 10 scientific modules via CI/CD using GitHub Actions, Docker, and AWS Lambda, saving 15+ hours per month in release overhead.

Software Engineer at Copart, Inc.

November 1, 2023 - November 1, 2023

Developed a vehicle listing dashboard with React.js and NgRx, coordinating with UI/UX teams to launch 15 reusable components that scale across 2M+ daily auction views. Formulated a .NET Core microservice for real-time bidding, optimizing concurrent transaction flow for 95,000+ global users and reducing latency. Integrated a PostgreSQL-backed payment module with ACID-compliant workflows, supporting $150M+ monthly vehicle transactions with minimal failure risk. Orchestrated containerized deployments using Docker and Kubernetes across 3 zones, reducing deployment lead time by 4 hours per cycle. Implemented Cypress-based end-to-end testing pipelines, raising test coverage to 94% and stabilizing releases during peak events.

Graduate Researcher at University of Texas at Arlington

December 1, 2022 - December 1, 2022

Assembled a Python-based data pipeline to automate pre-processing for 10,000+ machine learning records, streamlining training readiness for computer vision experiments. Rolled out a D3.js-powered dashboard for live academic metrics, enabling real-time data visibility and expedited progress reporting across 3 departmental research teams. Reconstructed backend performance of Node.js RESTful APIs, lowering average request latency by 40 ms and improving compute resource utilization in scientific applications. Refined PostgreSQL query performance for 4 analytical workloads, reducing complex retrieval cycles by 5 seconds and increasing data reliability for journal-grade insights. Coordinated with professors and PhD researchers to align data modeling logic, improving reproducibility in published results and maintaining audit readiness for 7 projects.

Software Developer at Airbnb India

July 1, 2021 - July 1, 2021

Constructed a booking calendar in React.js with live availability sync, deploying 18 reusable components powering 200,000+ listings checks and reducing time-to-checkout during high-traffic events. Programmed a Node.js + Express.js microservice for host verification, coordinating with onboarding team to scale intake for 1,500+ new hosts/month across tier-2 markets. Revised PostgreSQL indexing and partitioning on high-load endpoints, cutting query latency by 220 ms and improving search reliability during regional traffic spikes. Containerized services with Docker on AWS EC2, automating CI/CD pipelines in AWS to support daily rollouts with zero rollback incidents across 3 release environments. Spearheaded Cypress-based regression automation for a telecom provisioning platform, improving test cycle efficiency and shortening sprint release timelines from 14 to 7 days.

Software Engineer at Larsen & Toubro Infotech

December 1, 2019 - December 1, 2019

Launched an insurance claims portal with React.js, partnering with UX team to deliver 10+ responsive UI components that improved user interaction and reduced support requests within 3 months. Engineered Spring Boot services and PostgreSQL schemas for a banking loan automation workflow, scaling to support 5,000+ concurrent users and removing manual input delays during peak hours. Configured a serverless e-commerce system using AWS Lambda, S3, and API Gateway, reducing infrastructure overhead while enabling multi-region scalability across 4 deployment zones.