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Vivek Singh

@viveksingh34

Senior Backend Developer at Growth Catalysts who developed a Healthcare AI platform with sub-200ms response times.

At Growth Catalysts, I developed a Healthcare AI platform using Node.js, microservices, PostgreSQL, Vue.js, and RESTful APIs, delivering sub-200ms response times. I also integrated OpenAI and Mistral AI APIs to automate healthcare workflows.

At Nexval InfoTech Pvt. Ltd, I designed HRMS applications and refactored monolithic applications into modular, service-oriented architecture, improving performance by up to 40%. I also developed real-time booking and scheduling modules using Node.js, WebSockets, MongoDB, and Vue.js.

At Kweb Technologies, I built a subscription-based LMS platform from scratch with Stripe payment integration, OAuth2/JWT authentication, and AWS S3 storage. Across my roles, I've delivered commercial projects in healthcare, HRMS, SaaS, e-commerce, and marketplace domains.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer, Team Lead

Growth Catalysts

Dec 2025 - Feb 2026 (2 months)

Developed a Healthcare AI platform using Node.js, microservices, PostgreSQL, Vue.js, and RESTful APIs, delivering sub-200ms response times. Integrated OpenAI and Mistral AI APIs, implemented JWT and RBAC authentication, and deployed on Azure with CI/CD pipelines.

NodeJS Microservices PostgreSQL Vue.Js REST APIs OpenAI Mistral AI JWT RBAC CI CD Azure

Backend Engineer

Breathe Again Pvt. Ltd

Aug 2025 - Nov 2025 (3 months)

Developed serverless backend applications using AWS Lambda, API Gateway, SQS, RESTful APIs, and PHP. Built Shopify integrations for product, inventory, and order synchronization using webhooks and event-driven architecture.

AWS Lambda API Gateway Amazon SQS REST APIs PHP Shopify Webhooks Event Driven Architecture

Senior PHP Developer

Nexval InfoTech Pvt. Ltd.

Sep 2021 - Apr 2025 (3 years 7 months)

Designed and developed scalable HRMS applications using PHP, Laravel, MySQL, Redis, and RESTful APIs. Refactored monolithic applications into modular, service-oriented architecture, improving performance by up to 40%.

PHP Laravel MySQL Redis REST APIs Object Oriented Programming Refactoring RabbitMQ S3 NodeJS WebSockets MongoDB Vue.Js

Lead Consultant / Senior Full Stack Engineer

Kweb Technologies

Nov 2016 - Aug 2021 (4 years 9 months)

Designed and developed scalable SaaS, E-commerce, and business applications using PHP, Laravel, CodeIgniter, MySQL, and AWS. Built a subscription-based LMS platform with Stripe payment integration, OAuth2/JWT authentication, and AWS S3 storage.

PHP Laravel CodeIgniter MySQL AWS Stripe OAuth JWT RBAC React REST APIs

Senior Software Developer / Tech Lead

Goyal's Software Solution Pvt. Ltd.

Mar 2010 - Oct 2016 (6 years 7 months)

Worked on client-based startup projects delivering web applications using PHP, CakePHP, CodeIgniter, and MySQL. Designed and developed enterprise applications including inventory management, billing systems, and real estate platforms.

PHP CakePHP CodeIgniter MySQL Database Optimization Stored Procedures RBAC

PHP Developer

Cyber Network

May 2008 - Feb 2010 (1 year 9 months)

Developed and maintained hospital management and web portal applications using PHP and MySQL. Worked on backend modules including data management, user authentication, and basic reporting features.

PHP MySQL Data Management User Authentication Reporting