Available to hire
Hi, I’m Randhir Kumar Singh, a Full Stack Developer with 12 years of experience building robust, scalable web applications. I specialize in front-end and back-end technologies including HTML, CSS, TypeScript, JavaScript, React, Next.js, Angular, Svelte, Node.js, and Python (FastAPI). I design and consume RESTful APIs and microservices, work with MongoDB, PostgreSQL, and cloud platforms like AWS and Azure. I’m passionate about clean code, performance optimization, and responsive design.
I enjoy collaborating with cross-functional teams, mentoring junior developers, and delivering user-centric solutions. I have hands-on experience implementing CI/CD pipelines, automated testing, and Agile development practices to accelerate product delivery. I’m always eager to learn emerging technologies and apply innovative solutions to complex technical challenges.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
English
Fluent
Work Experience
Full Stack Developer at Freelance
July 1, 2022 - PresentCurrently working as a Full Stack Developer focusing on both front-end and back-end technologies to deliver customized solutions. Involved in designing, coding, and integrating various web applications enabling seamless user experiences.
Frontend Developer at SoftMind Infotech Pvt. Ltd.
July 1, 2022 - July 10, 2025Developed user interfaces using React, Redux, Next.js, HTML5, Bootstrap, Tailwind CSS, and standard CSS to create responsive and seamless user experiences. Worked on various projects involving claims and contract systems, enhancing user interface and functionality.
Frontend Developer at MyMind Infotech Pvt. Ltd.
July 1, 2016 - July 10, 2025Built interactive and responsive UI with HTML, CSS, Bootstrap, React.js, and Typescript. Contributed to several client projects including insurance portals and e-commerce platforms, ensuring quality and performance optimization.
Sr. Full Stack Developer at codemetrics Pvt. Ltd.
December 1, 2023 - PresentWorking since December 2023 on the Mylescars ERP System (internal website), an administrative web application that manages fleet, onboarding car partners, subscriptions, invoicing, and booking tracking. Responsibilities include front-end development using React, Redux, Next.js, HTML5, Tailwind CSS, and backend development primarily with Python for server-side logic, authentication using AWS Cognito, and data management via DynamoDB integrated with Python solutions.
Sr. Full Stack Developer at codemetrics Pvt. Ltd.
December 1, 2023 - September 2, 2025Developed the Mylescars public website, a flexible self-drive car rental and subscription platform, using React, Redux, Next.js, HTML5, Tailwind CSS, and standard CSS to ensure a responsive and seamless user experience.
Full Stack Developer at Soft mind Infotech Pvt. Ltd.
July 31, 2022 - September 2, 2025Developed HWG-CRM, a customizable admin CRM for Headstart Warranty Group for customer extended warranty program management on electronics. Front-end development involved React.js, Next.js, Redux, HTML5, Tailwind CSS, and CSS with reusable components and optimized rendering. Back-end developed using Node.js and Express.js with secure AWS Cognito authentication, DynamoDB data storage, RESTful APIs, and backend optimization for scalability and performance.
Front End Developer at Mymind Infotech Pvt. Ltd.
December 31, 2017 - September 2, 2025Built user interfaces for Kotak General Insurance using React, Redux, Next.js, HTML5, Bootstrap, and CSS for responsive experiences. Developed backend server logic with Python to efficiently manage business operations and data processing.
Front-End Developer at Mymind Infotech Pvt. Ltd.
July 1, 2016 - September 2, 2025Developed Dealer Portal Claim, an admin CRM for dealers at Headstart Warranty Group managing vehicle claims with role-based authentication. Front-end developed with SvelteKit, TypeScript, HTML5, Tailwind CSS, and CSS while collaborating with backend teams using FastAPI for smooth API integration and responsive application behavior.
Front-End Developer at Mymind Infotech Pvt. Ltd.
February 1, 2016 - September 2, 2025Developed user interfaces with React, Redux, HTML5, Material UI, and CSS for Road Town Fast Ferry, a pilgrimage trip agency providing high-value packages and ethical service.
Front-End Developer at Mymind Infotech Pvt. Ltd.
February 1, 2015 - September 2, 2025Independently developed critical modules for Xecta, a platform offering insights across the energy sector including well construction and offshore operations. Used Material UI for design, HighchartsJS and GraphQL for dynamic chart displays, and React, Redux, HTML, CSS, Bootstrap for components and API integration.
Senior Full Stack Developer at Codemetrics Pvt. Ltd.
August 1, 2022 - PresentSenior Full Stack Developer responsible for designing and delivering scalable web applications. Led front-end development with React, Redux, Next.js, HTML5, and Tailwind CSS; implemented back-end services using Python (FastAPI) and Node.js/Express; built and consumed RESTful APIs, and integrated AWS Cognito for authentication and DynamoDB for storage. Contributed to architecture decisions, performance optimizations, and CI/CD pipelines, while mentoring junior developers and collaborating with cross-functional teams to ensure timely delivery.
Full Stack Developer at Soft Mind Infotech Pvt. Ltd.
July 1, 2022 - September 22, 2025Developed end-to-end full-stack solutions, delivering front-end interfaces with React/Next.js and responsive UI using Tailwind/Bootstrap, and back-end services with Node.js/Express and Python (FastAPI). Built RESTful APIs, integrated authentication and data storage using AWS Cognito and DynamoDB, and worked in an Agile environment to enhance performance and reliability.
Front-End Developer at Mymind Infotech Pvt. Ltd.
July 1, 2016 - September 22, 2025Developed responsive front-end interfaces using React, HTML5, CSS/SCSS, and Tailwind. Created reusable components, implemented UI/UX best practices, and collaborated with backend teams to ensure smooth data flow across applications.
Sr. Full Stack Developer at Codemetrics Pvt. Ltd.
August 1, 2022 - PresentResponsible for end-to-end development of web applications using React, Redux, Next.js on the frontend and Python-based services on the backend. Implemented authentication with AWS Cognito and data storage with DynamoDB, and contributed to ERP/internal tooling including the Mylescars project with a focus on performance and real-time data access.
Full Stack Developer at Soft Mind Infotech Pvt. Ltd.
July 1, 2022 - September 22, 2025End-to-end web development across front-end and back-end. Built CRM modules and public/internal sites using React/Next.js, Redux, HTML5, Tailwind CSS; backend services with Node.js/Express.js and Python-based solutions; integrated AWS Cognito and DynamoDB and delivered scalable RESTful APIs.
Front End Developer at Mymind Infotech Pvt. Ltd.
July 1, 2016 - September 22, 2025Developed front-end interfaces using React, HTML5, CSS/SCSS, and JavaScript; built admin dashboards and customer-facing pages; collaborated with designers and back-end teams to deliver responsive, maintainable UI components.
Front End Developer at Kotak General Insurance
December 1, 2017 - September 22, 2025Built UI components using React, Next.js, HTML5, and Bootstrap; participated in front-end architecture decisions for insurance platforms; collaborated with back-end teams to ensure smooth data flow and user experience.
Front End Developer at Headstart Warranty Group (HWG) – CRM
July 1, 2022 - September 22, 2025Implemented dynamic UIs for the CRM used to manage extended warranty programs. Used React.js, Next.js, Redux, Tailwind CSS; developed reusable components and optimized rendering; connected frontend to RESTful APIs and integrated authentication/data storage with AWS Cognito and DynamoDB.
Front End Developer at Dealer Portal Claim – Headstart Warranty Group
July 1, 2016 - September 22, 2025Developed UI for dealer claim system using SvelteKit, TypeScript, Tailwind CSS; integrated with APIs built in FastAPI and implemented role-based authentication.
Front End Developer at Road Town Fast Ferry
February 1, 2016 - September 22, 2025Created front-end interfaces for pilgrimage package booking, featuring responsive layouts with Material UI, HTML5, and CSS; implemented client-side features and polished user experience.
Front End Developer at Xecta
February 1, 2015 - September 22, 2025Developed comprehensive UI for energy sector insights using React; integrated Highcharts for data visualization and GraphQL for data queries.
Front End Developer at Mylescars – Public Website
December 1, 2023 - September 22, 2025Public website development for a flexible self-drive car rental platform using React, Redux, and Next.js; focused on responsive design and performance optimization.
Front End Developer at Mylescars – ERP System / Internal Website
December 1, 2023 - PresentERP/internal admin UI development for fleet management, onboarding partners, subscriptions, invoicing, and bookings; emphasis on real-time data access and robust UI components.
Sr. Full Stack Developer at codemetrics Pvt. Ltd.
August 1, 2022 - PresentLed full-stack development for internal ERP systems and customer-facing platforms. Implemented front-end using React, Redux, Next.js, HTML5, Tailwind CSS; built backend services with Python (FastAPI) and Node.js/Express; integrated AWS Cognito for authentication and DynamoDB for data storage; designed and consumed RESTful Web APIs; collaborated with cross-functional teams to deliver scalable solutions and improve data-driven operations, including the Mylescars ERP/internal tools.
Full Stack Developer at Soft mind Infotech Pvt. Ltd.
August 1, 2022 - PresentContributed to frontend development for client projects using React, Redux, Next.js, and Tailwind CSS; created robust UI components; collaborated with backend teams to connect APIs and implement authentication/storage patterns on AWS-based services.
Front End Developer at Mymind Infotech Pvt. Ltd.
July 1, 2022 - September 22, 2025Developed responsive user interfaces with React.js, Next.js, Redux, HTML5, and Tailwind CSS; improved performance and accessibility; collaborated with backend teams to integrate APIs and deliver polished front-end experiences.
Front-end / Full Stack Developer at Headstart Warranty Group (HWG) – HWG CRM
July 1, 2022 - September 22, 2025Developed admin CRM frontend using React/Next.js/Redux/Tailwind; built backend services with Node.js/Express, integrated AWS Cognito and DynamoDB; designed and consumed RESTful APIs; implemented role-based authentication and data workflows for claims, contracts, and customer support.
Front-end Developer at Kotak General Insurance
December 1, 2017 - September 22, 2025Built responsive front-end interfaces using React, Next.js, HTML5, CSS/Bootstrap; collaborated with backend Python-based services to support insurance product workflows; delivered cross-device UI improvements.
Front-end Developer at Xecta
February 28, 2015 - September 22, 2025Independently developed modules using HTML, CSS, Bootstrap, React, and Redux; integrated with APIs and contributed to digital transformation initiatives.
Front-end Developer at Road Town Fast Ferry
February 1, 2016 - September 22, 2025Developed front-end interfaces for travel packages using React, Material UI, HTML5 and CSS; delivered responsive, user-friendly booking experiences.
Front-end Developer at Dealer Portal Claim (Headstart Warranty Group )
July 1, 2016 - September 22, 2025Maintained and enhanced the dealer portal UI with SvelteKit, TypeScript, HTML5, Tailwind CSS; connected UI with FastAPI-backed APIs; implemented role-based access across modules for claims and contracts.
Front-end Developer at Mylescars
December 1, 2023 - September 22, 2025Public Website: Developed the public site using React, Redux, Next.js, and Tailwind CSS; implemented booking flows and integrated with backend services for car rentals and subscriptions.
Front-end / Full Stack Developer at Mylescars
December 1, 2023 - PresentERP System / Internal Website: Built internal admin tools with React, Redux, Next.js; integrated with Python-based backend (FastAPI) and AWS Cognito/DynamoDB for authentication and data storage; enabled real-time data access for internal teams.
Front End Developer at Mymind Infotech Pvt. Ltd.
July 1, 2014 - July 1, 2016Developed responsive user interfaces using React.js, Next.js, Redux, HTML5, Tailwind CSS, and CSS to deliver a seamless user experience across devices.
Full Stack Developer at Soft mind Infotech Pvt. Ltd.
July 1, 2016 - July 1, 2022Led full-stack development with frontend using React/Next.js and backend using Node.js/Express; implemented cloud-based authentication with AWS Cognito and data storage with DynamoDB; built RESTful APIs and collaborated with cross-functional teams.
Full Stack Developer at Mylescars
December 1, 2023 - PresentFrontend and backend development for Mylescars ERP System (internal website) with React/Redux/Next.js frontend, Python-based server logic, and AWS Cognito and DynamoDB integration.
Front-End Developer at Mylescars
August 1, 2022 - December 1, 2023Developed the public website UI using React, Redux, Next.js, HTML5, Tailwind CSS, and CSS to deliver a responsive, user-friendly experience.
Full Stack Developer at Headstart Warranty Group
December 1, 2017 - July 1, 2022HWG-CRM admin CRM; led front-end development with React/Next.js and back-end development with Node.js; implemented RESTful APIs, AWS Cognito authentication, and DynamoDB storage.
Full Stack Developer at Kotak General Insurance
July 1, 2016 - December 1, 2017Front-end interfaces using React/Redux/Next.js; back-end logic in Python to support contracts and claims processing.
Front-End Developer at Headstart Warranty Group
February 1, 2016 - July 1, 2016Dealer Portal Claim: frontend for dealer claims/contracts with role-based UI implemented in SvelteKit/TypeScript/Tailwind CSS.
Front-End Developer at Road Town Fast Ferry
February 1, 2015 - February 1, 2016Developed frontend for pilgrimage packages platform using React, Redux, HTML5, and Material UI.
Front-End Developer at Xecta
March 1, 2014 - February 1, 2015Independently developed key UI modules for energy sector insights using HTML/CSS/React/Redux.
Senior / Lead Full-Stack Engineer at Boston Consulting Group Pvt. Ltd.
March 1, 2025 - PresentLed the Vantage Pro enterprise AI & RMS platform, architecting secure AI orchestration (Frontend → FastAPI → OpenAI MCP tools), multi-agent reasoning, RMS governance, and a high-performance RMS dashboard. Implemented Elasticsearch-based data discovery and governance-aware UI components, built scalable frontend with Next.js, TanStack Query, and Zustand, and ensured reliability with Playwright and Jest tests.
Senior Frontend / Full-Stack Engineer at Boston Consulting Group Pvt. Ltd.
August 1, 2022 - March 1, 2025Developed Voyager, an enterprise AI chat interface for RMS data with HRID-scoped data access. Implemented async state management with Redux Thunk, designed secure frontend-backend communication, and built reusable enterprise UI components aligned with internal design standards.
Full-Stack Engineer at Kotak General Insurance
August 1, 2022 - PresentDeveloped real-time vehicle verification workflows by integrating Government and TCS APIs, bridged modern services with legacy .NET Core systems via Node.js/Express, implemented underwriting & eligibility logic, built dynamic insurance discovery and purchase flows, and integrated Stripe for payments and Strapi-driven CMS for marketing content.
Senior / Lead Full-Stack Engineer at Vantage Pro - Enterprise AI & RMS Intelligence Platform (Client: Boston Consulting Group (BCG))
October 1, 2025 - PresentLed development of an enterprise AI platform with RMS data governance, multi-agent reasoning, and secure OpenAI tool orchestration. Built a scalable Next.js frontend with FastAPI backend, and implemented RMS data search and ticket-context aware conversations. Established automated testing and reliable CI/CD pipelines.
Senior / Lead Full-Stack Engineer at Voyager - Enterprise AI Chat Platform (Client: BCG)
March 1, 2025 - October 1, 2025Developed a chat-first interface for RMS data access, integrated async chat state management, and enforced HRID- and data-based authorization within chat responses. Created reusable UI components and ensured secure, low-latency frontend-backend communication.
Lead Full-Stack Engineer at Kotak General Insurance - Two & Four Wheeler Digital Insurance Platform
August 1, 2022 - March 1, 2025Built vehicle registration lookup workflows and a Node.js + Express API layer bridging modern services with legacy .NET Core systems. Implemented underwriting logic, dynamic insurance discovery flows, and integrated Stripe for payments.
Senior / Lead Full-Stack Engineer at Ironwood CRM - Enterprise Insurance & Claims Management Platform
October 1, 2019 - July 1, 2022Designed and developed modular enterprise CRM with claims, contracts, products, and commissions modules. Implemented fine-grained authorization, audit trails, and AWS-based scalability.
Senior Full-Stack Engineer at HWG (Headstart Warranty Group) - Warranty & Claims Management CRM
March 1, 2016 - October 1, 2019Built a cloud-native CRM with nested claim validations, multi-level approvals, and policy-driven overrides. Delivered high-performance frontend (SvelteKit) and FastAPI/PostgreSQL backend with AWS integration.
Front-End Developer at Dealer Portal Claim – Admin CRM System
July 1, 2014 - March 1, 2016Developed dynamic, responsive front-end interfaces for CRM and claims management, implemented RBAC, and integrated with Django REST Framework backends.
Senior / Lead Full-Stack Engineer at Vantage Pro - Enterprise AI & RMS Intelligence Platform
October 1, 2025 - PresentLed enterprise AI platform work for RMS data with HRID- and team-based authorization. Architected secure AI orchestration (Frontend, FastAPI, OpenAI MCP tools) with zero direct database exposure. Implemented multi-agent reasoning to select agents based on user HRID, team context, and authorized RMS datasets. Built RMS intelligence dashboard showing tickets by HRID. Enabled ticket-aware AI conversations with context while isolating chat histories. Implemented Elasticsearch-based querying for fast RMS data discovery. Built scalable frontend with Next.js, TanStack Query, and Zustand. Ensured reliability with Playwright and Jest tests. Impact: reduced RMS access time to seconds, enforced enterprise governance, and delivered a reusable AI platform for multiple internal BCG apps.
Senior / Lead Full-Stack Engineer at Voyager - Enterprise AI Chat Platform
March 1, 2025 - October 1, 2025Built an enterprise AI chat interface enabling consultants to query RMS-related data directly in chat. Integrated frontend chat workflows with backend APIs routing queries to AI reasoning agents. Enforced HRID- and team-based data authorization within chat responses and implemented role-aware data visibility. Developed scalable async state management using Redux Thunk for chat state, agent responses, and metadata. Collaborated with backend teams to ensure secure, low-latency frontend-backend communication. Created reusable enterprise UI components aligned with internal standards, focusing on performance and reliability at scale.
Lead Full-Stack Engineer at Kotak General Insurance
August 1, 2022 - March 1, 2025Built real-time vehicle verification and insurance purchase flows. Implemented vehicle registration lookup by integrating Government and TCS APIs. Designed Node.js + Express API layer to bridge modern services with legacy .NET Core systems. Implemented underwriting and eligibility validation logic. Developed dynamic insurance discovery and purchase flows, integrated Stripe for payments, and CMS-driven marketing modules using Strapi. Frontend state managed with Redux Toolkit; ensured reliable communication between modern services and legacy APIs.
Front-End Developer at HWG Dealer Portal - Admin CRM System
July 1, 2014 - March 1, 2016Developed dynamic, responsive UIs using React.js, TypeScript, Redux Thunk, and Material UI. Built reusable UI components for claims processing and reporting dashboards. Integrated frontend with Django REST APIs and implemented RBAC for module access control.
Education
Bachelor of Computer Applications at Delhi, India
January 1, 2011 - December 31, 2014Bachelor of Arts at Bihar University
January 1, 2011 - December 31, 2014Bachelor of Computer Applications at Indira Gandhi National Open University
January 11, 2030 - February 1, 2014Bachelor of Computer Applications at Indira Gandhi National Open University (IGNOU), Delhi
January 11, 2030 - February 1, 2014Bachelor of Computer Applications at Indira Gandhi National Open University
February 1, 2014 - September 22, 2025Bachelor of Computer Applications at Indira Gandhi National Open University
February 1, 2014 - September 22, 2025Bachelor of Computer Applications at Indira Gandhi National Open University, Delhi
January 11, 2030 - February 1, 2014Bachelor of Computer Applications at Indira Gandhi National Open University, Delhi
February 1, 2014 - December 1, 2025Bachelor of Computer Applications at Indira Gandhi National Open University
January 11, 2030 - February 1, 2014Bachelor of Computer Applications at Indira Gandhi National Open University
January 11, 2030 - February 1, 2014Qualifications
Bachelor of Computer Applications
January 11, 2030 - January 1, 2014Bachelor of Computer Applications
January 11, 2030 - January 1, 2014Industry Experience
Computers & Electronics, Software & Internet, Financial Services, Travel & Hospitality, Gaming, Transportation & Logistics, Professional Services, Energy & Utilities, Retail, Media & Entertainment, Education
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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