Rudra is currently unavailable
Rudra Chandramani Singh
Verified Expert in Engineering
Software Developer
Sydney, New South Wales, Australia
Toptal member since July 25, 2022
Bio
Rudra is a problem solver applying analytical, design, and technical skills to supervise the entire software development lifecycle. He is an effective hands-on leader with outstanding success in developing applications to analyze growth and strategy for established and startup firms. Rudra is recognized for strong leadership and project management abilities while leading cross-functional teams in fast-paced, competitive work environments.
Portfolio
Formula Payments, Inc.
Node.js, TypeScript, Back-end, MySQL, Amazon Web Services (AWS), Prisma, Vercel...
Freede Solutions Inc.
React Native, Node.js, HTML, CSS, JavaScript, MongoDB, Prisma, Vercel...
Toptal
React Native, Amazon Web Services (AWS), NestJS, API Development...
Experience
- HTML - 7 years
- CSS - 7 years
- JavaScript - 7 years
- Node.js - 6 years
- Redux - 5 years
- Express.js - 5 years
- React - 5 years
- React Native - 3 years
Preferred Environment
Git, MacOS, Blockchain, Stripe, iOS, Android, Web
The most amazing...
...thing I've developed is a restaurant booking and ordering system that autonomously and dynamically maximizes online bookings and creates a dynamic layout.
Work Experience
Founding Engineer and Developer
2025 - 2026
Formula Payments, Inc.
- Developed and launched the fintech platform’s V1 using Node.js/Nest.js, Next.js, and TypeScript, ensuring scalability, security, and efficiency.
- Designed and optimized a RESTful API and PostgreSQL database, improving vendor payout processing and system performance.
- Deployed and maintained a cloud-based infrastructure, collaborating closely with stakeholders to align with business goals.
Technologies: Node.js, TypeScript, Back-end, MySQL, Amazon Web Services (AWS), Prisma, Vercel, Google Analytics, Financial Modeling
Full-stack Developer
2024 - 2024
Freede Solutions Inc.
- Developed and deployed new features for a financial app, enhancing user experience by enabling rule creation, integrating external sources, and introducing a web-based front end.
- Launched the Android version of the app, expanding the platform's reach beyond iOS and ensuring seamless functionality across devices.
- Leveraged expertise in React Native, Node.js, and MongoDB to deliver efficient, scalable solutions while collaborating with the client in Austin, TX, USA, ensuring time zone overlap for smooth communication.
Technologies: React Native, Node.js, HTML, CSS, JavaScript, MongoDB, Prisma, Vercel, Google Analytics, Financial Modeling
Senior React Native Developer
2024 - 2024
Toptal
- Developed a cross-platform real estate app using React Native and NestJS, enabling seamless user experiences on iOS and Android while crowdsourcing property data to promote transparency in the Australian property market.
- Optimized AWS infrastructure to ensure high performance and scalability, supporting a robust back end capable of efficiently handling property submissions and user interactions.
- Enhanced user engagement through intuitive search and filtering features, improving the accuracy of property data via community-driven verification and fostering transparency.
Technologies: React Native, Amazon Web Services (AWS), NestJS, API Development, Mobile Applications, Prisma, Vercel, Google Analytics, Financial Modeling, Mobile Apps
Senior Full-stack Developer
2023 - 2023
anKord, LLC
- Designed and developed scalable full-stack solutions using Node.js, NestJS, TypeScript, and React, ensuring clean, maintainable, and reusable code while adhering to industry best practices.
- Architected and optimized back-end systems with RESTful and GraphQL APIs, leveraging relational and object-oriented databases to deliver high-performance and reliable applications.
- Enhanced deployment pipelines by implementing CI/CD processes on serverless architectures with AWS and Vercel, ensuring seamless application delivery and robust operational efficiency.
Technologies: Node.js, TypeScript, Amazon Web Services (AWS), React, APIs, Serverless, GraphQL, NestJS, Vercel, Google Analytics, Mobile Apps
Full-stack Developer
2023 - 2023
Terra-bate LLC
- Developed a Google Cloud function in Node.js to integrate with the Stripe API, enabling the seamless creation of Stripe Connect Express accounts for users through the iOS app.
- Collaborated with cross-functional teams to integrate the cloud function with the iOS app, ensuring a smooth and secure user experience while maintaining scalability and reliability.
- Enhanced the project by leveraging SwiftUI, JavaScript, and Firebase Auth expertise, streamlining onboarding and payment workflows to align with project goals and timelines.
Technologies: Google Cloud Functions, Stripe, Swift, JavaScript, iOS, Stripe API, Stripe Checkout, Firebase, Node.js, Google Analytics, Mobile Apps
Expert Stripe Developer
2023 - 2023
Taisaku Partnership LLC
- Integrated a payment solution by connecting Jotform with Stripe, enabling secure credit card data collection for future transactions and improving the efficiency of the company’s childcare eCommerce processes.
- Evaluated and implemented the integration of accounting features with QuickBooks, streamlining financial data flow and ensuring seamless compatibility with existing workflows.
- Leveraged expertise in payment systems and eCommerce to deliver a scalable solution within tight timelines, collaborating effectively with stakeholders across multiple time zones.
Technologies: Stripe, Stripe API, Stripe Payments, Payment APIs, JavaScript, QuickBooks API, Google Analytics
Senior Full-stack Developer
2022 - 2023
Monthlysubs
- Developed and implemented Stripe subscription payment solutions within a React and Node.js-based web platform, enabling retail shops to charge customers seamlessly through a subscription model.
- Integrated Stripe API for secure payment processing, custom dashboard creation, and data management, ensuring scalability and adherence to financial data protection standards.
- Collaborated with stakeholders to transform Figma designs into a functional platform, leveraging expertise in JavaScript and Firebase to deliver robust, user-friendly solutions.
Technologies: JavaScript, React, Stripe API, Node.js, Firebase, Stripe, CSS, Stripe Subscriptions, Mobile Apps
Full-stack Developer
2022 - 2022
NFTSUOMI OU
- Built a fully functional NFT marketplace using React and Solidity, enabling users to mint, buy, and sell NFTs while integrating blockchain functionality for secure transactions.
- Integrated the WPSmartContracts WordPress plugin for seamless minting and smart contract creation, enhancing the platform’s blockchain interactions and scalability.
- Optimized NFT currency display integrations and smart contract interactions, ensuring the accurate display of transactions and balances in a user-friendly interface.
Technologies: WordPress, WordPress Plugins, Blockchain, Non-fungible Tokens (NFT), Smart Contracts, React, Next.js
CTO
2019 - 2022
Resbutler
- Developed an application from the ground up and configured the project structure and application skeleton.
- Built the menu ordering app, kitchen display system, and take-away app.
- Designed a REST API with a subteam of back-end developers.
Technologies: Express.js, React, Node.js, Stripe API, HTML, CSS, JavaScript, React Native, Google Cloud Platform (GCP), Firebase, Material UI, Bootstrap, Antd, Front-end, Redux, React Redux, APIs, Responsive Web Apps, Stripe, iOS, Cloud, Maps, Payment APIs, GPS, Android, Cloud Architecture, Full-stack, Software Architecture, Full-stack Development, Identity & Access Management (IAM), Sass, SCSS, Back-end, Object-oriented Programming (OOP), Data Structures, CI/CD Pipelines, JSON, Google Cloud Functions, Google Cloud Storage, Bitbucket, PWA, Gatsby, Netlify, Web Design, Responsive Web Design (RWD), Front-end Development, Webpack, HTML5, Login & Registration, REST, Web App Development, Mobile Development, NestJS, CTO, Leadership, IT Strategy, Architecture, Mobile App Development, Databases, App Store, Google Play Store, Stripe Connect, Stripe Subscriptions, TypeScript, Dashboards, Figma, Nuxt.js, Data Visualization, Tailwind CSS, Highcharts, GitLab CI/CD, Redux-Saga, gRPC, Charts, Google Cloud, Google Maps API, Jira, Agile, Technical Leadership, SaaS, Web Applications, REST APIs, Serverless, Redis, Mobile, MVP Design, Back-end Architecture, Back-end Development, Technical Architecture, Scalable Application, Google Analytics
Senior Software Developer
2017 - 2019
E-Signature Pvt
- Devised system architecture for scalable SPAs. Developed React and React Native applications and mentored freshers.
- Translated designs and wireframes into high-quality code and built reusable components and front-end libraries for future use.
- Optimized components for maximum performance across a vast array of web-capable devices and browsers.
Technologies: React, Node.js, Express.js, HTML, CSS, React Native, Firebase, Google Cloud Platform (GCP), GraphQL, TypeScript, Redux, React Redux, MongoDB, APIs, Electron, Responsive Web Apps, Stripe, eCommerce, User Experience (UX), iOS, Cloud, Maps, Payment APIs, GPS, SQL, Cloud Architecture, Full-stack, Software Architecture, Full-stack Development, User Interface (UI), Identity & Access Management (IAM), Sass, SCSS, Back-end, Object-oriented Programming (OOP), Data Structures, CI/CD Pipelines, JSON, Google Cloud Functions, Google Cloud Storage, JavaScript, Bitbucket, PWA, Netlify, Web Design, Responsive Web Design (RWD), Front-end Development, Webpack, Mongoose, HTML5, Login & Registration, REST, Web App Development, Mobile Development, NestJS, Mobile App Development, Databases, App Store, Google Play Store, Stripe Connect, Stripe Subscriptions, Dashboards, Figma, Data Visualization, Highcharts, GitLab CI/CD, UI Design, Redux-Saga, gRPC, Charts, Google Cloud, Google Maps API, Jira, Agile, Technical Leadership, SaaS, Web Applications, MySQL, REST APIs, Serverless, PostgreSQL, Desktop App Development, Redis, Mobile, MVP Design, Back-end Architecture, Back-end Development, Expo, Apollo, Technical Architecture, Minimum Viable Product (MVP)
Software Engineer
2016 - 2017
Pebbled
- Implemented major rebranding across the platform: new logo, font guidelines, color palette, and SVG icons.
- Created mockups for the design and converted PSD to HTML.
- Designed the database schema based on the specification document and integrated the final design with the API.
Technologies: CSS, Express.js, JavaScript, HTML, Node.js, React, Web Development, Bootstrap, MongoDB, APIs, Responsive Web Apps, Stripe, eCommerce, User Experience (UX), iOS, Maps, Payment APIs, GPS, SQL, Full-stack, Software Architecture, Full-stack Development, Identity & Access Management (IAM), Sass, SCSS, Back-end, Object-oriented Programming (OOP), Data Structures, JSON, Google Cloud Functions, Google Cloud Storage, PWA, Web Design, Responsive Web Design (RWD), Front-end Development, Webpack, Mongoose, HTML5, Login & Registration, REST, Web App Development, Mobile Development, Databases, App Store, Google Play Store, Stripe Connect, Stripe Subscriptions, Dashboards, Figma, Data Visualization, GitLab CI/CD, Redux-Saga, Charts, Google Maps API, Jira, Agile, SaaS, Web Applications, MySQL, REST APIs, Serverless, MVP Design, Back-end Architecture, Back-end Development, Technical Architecture
Software Developer
2014 - 2016
Freakoids
- Implemented a highly interactive marketing website focused on explaining the product's features. This static site was optimized for mobile devices, accessibility, and SEO.
- I spent some time designing the interface for the REST API with the back-end team.
- Implemented the look and feel based on the wireframes and mockups provided by a designer.
Technologies: API Development, JavaScript, Node.js, PHP, WordPress, CSS, Sass, HTML, Bootstrap, Front-end Development, Mongoose, HTML5, Login & Registration, REST, Web App Development, Mobile App Development, Databases, App Store, Google Play Store, Stripe Subscriptions, Dashboards, Data Visualization, GitLab CI/CD, Charts, Agile, SaaS, Web Applications, REST APIs, MVP Design, Technical Architecture
Experience
Restaurant Booking and Ordering System
WizButler is the only system that autonomously and dynamically maximizes online bookings.
Dynamic booking allocations, dynamic capacity, dynamic table layouts, and dynamic floor plans mean the user can maximize their revenue by over 25% during a busy service autonomously and without any manual interventions.
Dynamic booking allocations, dynamic capacity, dynamic table layouts, and dynamic floor plans mean the user can maximize their revenue by over 25% during a busy service autonomously and without any manual interventions.
Job Board
A React Next.js-based job board website, where I was in charge of developing new user-facing features, determining the structure and design of web pages, building reusable codes, optimizing page loading times, and using a variety of markup languages to create the web pages
Set Bot
https://esignature.com.np/case-study/setbotsSetbots is an AI-powered chatbot used to stimulate human-like conversation through different messaging platforms like websites, social media, SMS, or telephone. Setbots can automate your Customer support through one of the largest messaging platforms, Facebook Messenger. It allows customers to have a real-time conversation with our bots to get answers to their questions. Setbots being available 24/7 helps the business retain their old and new customers by acting as a substitute for customer service representatives.
Monthly Subscriptions
To cultivate a consistent stream of customers, it's essential to introduce subscription features. By leveraging the powerful capabilities of Next.js, Firebase, and Stripe, I have created a seamless subscription process that keeps customers coming back for more. This approach can increase revenue and customer loyalty, as subscribers will likely engage with a brand and make repeat purchases over time. I also provided help with implementing these features into online stores.
Multi-chain NFT Marketplace
This multi-chain NFT marketplace allows users to buy, sell, and trade non-fungible tokens (NFTs) across multiple blockchain networks.
To create this marketplace, I utilized the latest technologies, such as Next.js and thirdweb, to deliver a fast, secure, and seamless user experience. The platform has advanced security features that ensure all transactions are secure and transparent.
Through my work, I created an intuitive interface that makes it easy for users to browse, search, and discover unique NFTs. The platform also offers a vibrant community of NFT enthusiasts worldwide, providing all users with an inclusive and decentralized experience.
To create this marketplace, I utilized the latest technologies, such as Next.js and thirdweb, to deliver a fast, secure, and seamless user experience. The platform has advanced security features that ensure all transactions are secure and transparent.
Through my work, I created an intuitive interface that makes it easy for users to browse, search, and discover unique NFTs. The platform also offers a vibrant community of NFT enthusiasts worldwide, providing all users with an inclusive and decentralized experience.
PEA Engineering
I was a vital part of the mobile development team, driving the conceptualization, design, and implementation of a dynamic Flutter app that harnessed the Riverpod state management framework. This app effortlessly serves iOS and Android platforms, showcasing my pivotal role in crafting an effective cross-platform solution.
Through close collaboration with teammates, I offered my expertise and ensured top-notch functionality, user interface, and overall performance. Utilizing the Riverpod framework, I managed the app's state effectively, facilitating smooth interactions and heightening the user experience on various devices.
This hands-on experience deepened my grasp of the intricacies of cross-platform development, augmenting my skill set in advanced state management techniques. Ultimately, my contributions underscored my proficiency in cross-platform strategies and adept application of state management tools like Riverpod, resulting in a successful, feature-rich Flutter app.
Through close collaboration with teammates, I offered my expertise and ensured top-notch functionality, user interface, and overall performance. Utilizing the Riverpod framework, I managed the app's state effectively, facilitating smooth interactions and heightening the user experience on various devices.
This hands-on experience deepened my grasp of the intricacies of cross-platform development, augmenting my skill set in advanced state management techniques. Ultimately, my contributions underscored my proficiency in cross-platform strategies and adept application of state management tools like Riverpod, resulting in a successful, feature-rich Flutter app.
Skills
Libraries/APIs
React, Node.js, Stripe API, Antd, React Redux, API Development, jQuery, Stripe, Stripe Connect, Redux-Saga, Google Maps API, REST APIs, Highcharts, Web3.js, React DnD, QuickBooks API
Tools
Git, Bitbucket, Webpack, Mongoose, GitLab CI/CD, Jira, Expo, Prisma, Google Analytics, Babel, Xcode, Figma, MetaMask, AppGyver, Stripe Checkout
Languages
JavaScript, HTML, CSS, TypeScript, GraphQL, Sass, SCSS, HTML5, SQL, PHP, Dart, Swift
Frameworks
Express.js, Redux, React Native, Material UI, Bootstrap, Next.js, Electron, NestJS, gRPC, Nuxt.js, Tailwind CSS, Jest, Flutter
Paradigms
Test-driven Development (TDD), Object-oriented Programming (OOP), Responsive Web Design (RWD), REST, Mobile Development, Agile, Back-end Architecture, Scalable Application, Desktop App Development, UI Design
Platforms
MacOS, Google Cloud Platform (GCP), Firebase, iOS, Android, Netlify, Mobile, Vercel, Amazon Web Services (AWS), Blockchain, WordPress, Web
Storage
MongoDB, JSON, Google Cloud Storage, Databases, Google Cloud, MySQL, Redis, PostgreSQL
Industry Expertise
Web Design
Other
Web Development, Design, Web App Development, Mobile App Development, APIs, Responsive Web Apps, eCommerce, User Experience (UX), Cloud, Maps, Payment APIs, GPS, Cloud Architecture, Full-stack, Software Architecture, Full-stack Development, Identity & Access Management (IAM), Back-end, Data Structures, CI/CD Pipelines, Google Login, Google Cloud Functions, PWA, Front-end Development, Login & Registration, CTO, IT Strategy, Architecture, App Store, Google Play Store, Stripe Subscriptions, Dashboards, Data Visualization, Charts, Technical Leadership, SaaS, Web Applications, Serverless, MVP Design, Decentralized Applications, Back-end Development, Web3, Technical Architecture, Minimum Viable Product (MVP), Software Development, Mobile Applications, Financial Modeling, Mobile Apps, Front-end, User Interface (UI), Gatsby, Leadership, Apollo, Supabase, Non-fungible Tokens (NFT), Facebook, Apple Pay, Google Pay, WordPress Plugins, Smart Contracts, Solana, thirdweb, Ethereum Smart Contracts, Blockchain & Cryptocurrency, Stripe Payments
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring