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Hi, I'm Kuldeep Singh, a passionate full-stack software developer with extensive experience in building scalable, efficient, and modern web applications. Over the years, I've honed my skills working on various projects, from serverless CMS platforms to scalable e-commerce solutions, always focused on improving user experience and backend efficiency. I enjoy leading modernization efforts and transitioning legacy systems to modern architectures, especially using cloud technologies like AWS. Outside of coding, I love collaborating with teams to design flexible products and streamline workflows with automation and CI/CD pipelines. Happy to connect and share knowledge!…Hi, I'm Kuldeep Singh, a passionate full-stack software developer with extensive experience in building scalable, efficient, and modern web applications. Over the years, I've honed my skills working on various projects, from serverless CMS platforms to scalable e-commerce solutions, always focused on improving user experience and backend efficiency. I enjoy leading modernization efforts and transitioning legacy systems to modern architectures, especially using cloud technologies like AWS. Outside of coding, I love collaborating with teams to design flexible products and streamline workflows with automation and CI/CD pipelines. Happy to connect and share knowledge!

Kuldeep Singh

Full Stack Developer, Developer, App Developer, +3

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Hi, I'm Kuldeep Singh, a passionate full-stack software developer with extensive experience in building scalable, efficient, and modern web applications. Over the years, I've honed my skills working on various projects, from serverless CMS platforms to scalable e-commerce solutions, always focused on improving user experience and backend efficiency. I enjoy leading modernization efforts and transitioning legacy systems to modern architectures, especially using cloud technologies like AWS. Outside of coding, I love collaborating with teams to design flexible products and streamline workflows with automation and CI/CD pipelines. Happy to connect and share knowledge!…Hi, I'm Kuldeep Singh, a passionate full-stack software developer with extensive experience in building scalable, efficient, and modern web applications. Over the years, I've honed my skills working on various projects, from serverless CMS platforms to scalable e-commerce solutions, always focused on improving user experience and backend efficiency. I enjoy leading modernization efforts and transitioning legacy systems to modern architectures, especially using cloud technologies like AWS. Outside of coding, I love collaborating with teams to design flexible products and streamline workflows with automation and CI/CD pipelines. Happy to connect and share knowledge!

Available to hire

Hi, I’m Kuldeep Singh, a passionate full-stack software developer with extensive experience in building scalable, efficient, and modern web applications. Over the years, I’ve honed my skills working on various projects, from serverless CMS platforms to scalable e-commerce solutions, always focused on improving user experience and backend efficiency.

I enjoy leading modernization efforts and transitioning legacy systems to modern architectures, especially using cloud technologies like AWS. Outside of coding, I love collaborating with teams to design flexible products and streamline workflows with automation and CI/CD pipelines. Happy to connect and share knowledge!

Skills

Experience Level

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 JDSA Pvt.Ltd

November 1, 2024 - June 19, 2024

Rejoined the company to lead the modernization of its internal workforce management system, transitioning the platform into a SaaS-ready product. Migrated the monolithic architecture to a serverless model using AWS Lambda and API Gateway, significantly reducing infrastructure costs and increasing scalability. Rebuilt the frontend using ReactJS, TypeScript, Tailwind CSS, and Redux Toolkit (RTK Query) for a highly responsive, modular UI and efficient state/data management. Integrated AWS Amplify for CI/CD, hosting, and real-time deployment across multiple environments. Designed and integrated RESTful APIs, multi-tenant database schemas in Amazon RDS (PSQL), and secure document storage using S3. Contributed to product architecture, system security, and long-term SaaS roadmap including scaling, and onboarding workflows.

Senior Full-Stack Developer at Tezooo Innovations Pvt. Ltd. (Client: Top Parent)

January 1, 2023 - October 31, 2024

Developed a serverless CMS for the Top Parent mobile app using ReactJS, RTK Query, Node.js, AWS Lambda, and Amplify, enhancing content workflow and reducing backend overhead. Configured domain routing with Route 53 and integrated S3 for secure media storage and delivery. Designed MongoDB schema, implemented secure authentication, and documented APIs using Swagger. Engineered a scalable e-commerce platform with ReactJS and Spring Boot, covering product catalog, user auth, and Stripe payments. Built RESTful APIs and asynchronous flows using RabbitMQ, Docker, and PostgreSQL for smooth transaction handling. Integrated performance optimizations like lazy loading, code splitting, and reusable components to improve UI responsiveness. Led deployment automation and environment setup using AWS Amplify, Git, and CI/CD pipelines, accelerating release cycles.

Software developer at Lexpand - Nojumi Solutions Inc.

April 1, 2021 - December 31, 2022

Designed and developed a job scheduler tool that can parallelly handle multiple requests to execute, schedule, or reschedule tasks. Automated the firm's state machine that handles all the manual tasks of the staff and reduced load by 90%. Implemented a content detection tool for email and message detection. Designed and implemented RESTful APIs for data exchange between front-end and back-end. Worked on Google Workspace add-on using Google Apps Script and messaging broker RabbitMQ. Utilized AWS S3 for serverless data storage and retrieval. Documented supported systems and applications to streamline business procedures reducing onboarding time by 37%. Designed serverless data storage solutions using AWS DynamoDB. Managed RESTful APIs with AWS API Gateway.

Software developer - Full Stack at piknix

June 1, 2020 - May 31, 2021

Collaborated with the UX/UI team to design a mobile-first, fully responsive e-commerce site. Integrated third-party APIs such as PayPal, Google APIs, passport, i18n localization, SendGrid email API, Twilio SMS API. Implemented role-based authentication and authorization. Utilized Docker for local development environments, enabling consistent setups and simpler new team member onboarding. Set up server using nginx with SSL certificates and deployed app on DigitalOcean. Developed REST API using Express MVC framework. Managed product catalog including listing, search, sorting, and filtering.

Technical Associate at JDSA Pvt. Ltd

February 1, 2018 - July 31, 2018

Designed and developed a web application using React.js that streamlined management tasks, reducing workload by 50%. Implemented authentication and authorization enabling employer access to profile, job schedule, and salary status. Designed and maintained relational database schema using PostgreSQL. Created an administrative dashboard boosting internal operational efficiency by more than 30%.

Full-Stack Developer at JDSA Pvt.Ltd

November 1, 2024 - October 29, 2024

Senior Full-Stack Developer at Tezooo Innovations Pvt. Ltd.

January 1, 2023 - October 31, 2024

Software developer at Lexpand - Nojumi Solutions Inc.

April 1, 2021 - December 31, 2022

Designed and developed a job scheduler tool that can parallely handle multiple requests to execute, schedule, or reschedule tasks. Automated the firm’s state machine that handles all the manual tasks of the staff and reduced load by 90%. Implemented a content detection tool for email and message detection. Designed and implemented RESTful APIs to enable data exchange between front-end and back-end. Worked on Google Workspace add-on using Google Apps Script and a messaging broker tool RabbitMQ. Utilized AWS S3 for storing and retrieving data and files in a serverless environment. Documented all supported systems and applications to streamline business procedures, effectively training new team members and reducing onboarding time by 37%. Designed and implemented serverless data storage solutions using AWS DynamoDB. Worked on AWS API Gateway for creating and managing RESTful APIs for serverless applications.

Software developer - Full Stack at piknix

June 1, 2020 - May 31, 2021

Collaborated with the UX/UI team to design a mobile-first, fully responsive e-commerce site. Integrated third-party APIs such as PayPal payment gateway, Google APIs, passport, i18n localization, SendGrid email API, and Twilio SMS API. Implemented role-based authentication and authorization mechanisms. Utilized Docker for local development environments, enabling consistent development setups across different machines and simplifying onboarding of new team members. Set up server using Nginx as a web server, added SSL certificates, and deployed the app on DigitalOcean. Worked on Express MVC framework for NodeJS to create REST API routes. Implemented product catalog management including product listing, search, sorting, and filtering.

Technical Associate at JDSA Pvt. Ltd

February 1, 2018 - July 31, 2018

Designed and developed a web application using React.js that streamlined management tasks, reducing workload by 50%. Implemented authentication and authorization, allowing employers to access their profile, job schedule, and salary status. Designed and maintained relational database schema using PostgreSQL. Created an administrative dashboard that boosted internal operational efficiency by more than 30%.