Stripe Developer for Fintech MVP
2025Join and Enjoy Marbella S.L
Built a Shopify-based POC for shared-cart payments with secure payment-link generation, back-end APIs, and an admin panel for transaction tracking.
About
A bit about me
Shubham is a professionally trained full-stack developer with over seven years of experience building secure and technologically advanced applications. With over a hundred thousand downloads across his apps, he is a strong advocate for delivering high-end products with well-structured, clean code. His applications are designed to interact seamlessly with multiple APIs and databases.
- Years of experience
- 7+
- Years of experience
- App downloads
- 100K+
- App downloads
- Products shipped
- 25+
- Products shipped
- Clients worldwide
- 20+
- Clients worldwide
Core stack
React 8 yrs Node.js 8 yrs Vue 8 yrs TypeScript 7 yrs Next.js 5 yrs NestJS 5 yrs
Full-stack Front-end Back-end Node.js React Vue TypeScript NestJS Next.js Flutter AWS DevOps Stripe PostgreSQL MongoDB
Experience
Where I've made an impact
- 2023 - 2024
Front-end Lead
Orby AI
- Built an intuitive, scalable UI for workflow automation with dynamic tasks, conditional logic, and real-time tracking to streamline internal processes.
- Developed a reusable UI library on Material UI, enabling consistent design and a scalable component-based architecture across the app.
- Ensured WCAG-compliant accessibility with screen reader support, keyboard navigation, and audits, making the platform inclusive and enterprise-ready.
- Set up PR preview environments and authored Jest, React Testing Library, and Playwright suites to improve product reliability across deployments.
- Translated Figma designs into accurate, responsive UIs while mentoring developers and streamlining team workflows.
React Redux Sagas Material UI Playwright Web Accessibility Unit Testing - 2025
Full-stack JavaScript & Amplify Developer
Intrinsica, Inc.
- Designed and built the entire front end of Intrinsica.ai with React and Tailwind CSS, enabling the MVP launch in under three weeks with no pre-defined designs.
- Developed a dynamic document search interface for real-time querying across thousands of financial reports, improving data discoverability by over 60%.
- Engineered modular, reusable UI components that reduced front-end code redundancy by ~40% and accelerated delivery.
- Led front-end architecture decisions including routing, state management, and component structure, and integrated authentication with Clerk.
React Tailwind CSS Vite AWS Amplify PostgreSQL Node.js Shadcn Clerk - 2022 - 2024
Associate Lead Software Engineer
DianApps Technologies
- Participated in planning, design, architecture, and code review within a cross-functional, multi-site team.
- Implemented complex Stripe integrations for marketplace charging and processing fees using managed and custom accounts, and set up Stripe Express.
- Automated back-end Node.js and front-end React deployments with AWS Elastic Beanstalk.
- Migrated PHP APIs to Node.js with unit test coverage, and built pixel-perfect UIs from Figma, Sketch, and AdobeXD designs.
- Built a healthcare appointment system streamlining patient intake, diagnosis, automated documentation, prescriptions, and referrals.
Node.js React NestJS GraphQL Stripe AWS Next.js TypeScript - 2020 - 2022
Senior Software Engineer
DianApps Technologies
- Led development and conducted code reviews to achieve maintainable, high-quality code while mentoring junior engineers.
- Contributed to scaling the organization from a team of 12 to more than 80, defining workflows for consistency, readability, and testability.
- Built fully automated CI/CD pipelines on Bitbucket and CircleCI and worked with global clients across time zones.
- Ran internal workshops on JavaScript best practices, Git, Redux, and DevOps fundamentals.
Node.js React Vue Laravel TypeScript CI/CD Pipelines DevOps AWS - 2019 - 2020
Software Engineer
DianApps Technologies
- Contributed to a large-scale enterprise application used globally, helping drive a twofold increase in ROI.
- Optimized large SQL queries, reducing execution time from minutes to seconds (milliseconds in some cases).
- Refactored heavy React front ends communicating with Node.js and Express.js via REST APIs to improve performance.
- Designed a mobile app to operate offline for extended periods and sync data once back online.
Node.js React Express.js MongoDB PostgreSQL Next.js TypeScript - 2023 - 2025
Flutter Developer
PlotTech Ltd
- Developed offline functionality for three Flutter apps, enabling seamless usage without connectivity in remote areas.
- Introduced a robust data sync mechanism for audit data (images and text), improving data accuracy by 98%.
- Optimized AWS infrastructure for a 30% reduction in operational costs and reduced app load times by 30%.
- Built reliable offline storage with SQLite and Hive and implemented comprehensive sync testing reaching a 99.9% QA success rate.
Flutter Dart AWS Lambda Offline-first Firebase SQLite - 2017 - 2019
Full-stack Developer
Mythengaa Websol
- Designed school management software addressing core administrative problems with a clean, usable solution.
- Built an online portal to search school profiles, program listings, articles, events, and scholarships for students.
- Integrated Google Analytics, Mixpanel, Sentry, and a payment gateway.
Vue Laravel Quasar MySQL Razorpay JavaScript
Freelance
Selected client engagements
A selection of focused contract work delivered through Toptal across payments, fintech, and full-stack product builds.
Stripe Subscription & Revenue Reporting Expert
2025Launch.ai, LLC
Resolved churn, past-due invoice, and revenue-reporting discrepancies and restored gross/net revenue metrics and exports across Stripe Sigma.
Stripe Tax Configuration Specialist
2025Handle My Hearing
Configured Stripe Custom Connect for IRS 1099-NEC compliance with automated tax-document generation and filing for contractors earning over $600/yr.
Custom API Developer
2024 - 2025Helms Tax Strategy, PLLC
Built multi-way automations and bidirectional sync across Airtable, NetHunt, Copper, ClickUp, and JustCall, eliminating manual data entry.
Stripe Developer
2024Connexion Media
Integrated Stripe with Xero for automated invoicing, reducing manual effort by 40% and cutting payment errors by 25% in a Node.js microservices stack.
Laravel Developer
2024Native Agency, Inc.
Restored AWS infrastructure, fixed API errors, and integrated the ChatGPT API to auto-generate responses and streamline user input.
Stripe Expert
2024StonePay LTD
Integrated Stripe Connect into an Angular + Node.js stack with embedded components and documentation that cut client dev time by 30%.
Cloud Back-end & Mobile Engineer
2023 - 2024Metabolic Meltdown
Optimized Back4App cloud functions and APIs for scheduling and coaching features and integrated the MindBody API, reducing production downtime.
Mobile Developer
2023 - 2024Crewsware Software Inc.
Shipped App Store and Play Store builds via Capacitor and implemented Stripe + RevenueCat subscriptions, growing MRR by 25%.
Full-stack Developer
2023Fresh Interactive, LLC
Built responsive Vue.js components and scalable Laravel + MySQL back ends, improving mobile engagement 20% and organic traffic 40% with Nuxt.js SEO.
Stripe Connect Expert
20239366-5909 Quebec Inc
Architected a secure Stripe Connect payment system with Node.js Firebase Functions, in-person POS terminal support, and operator-earnings allocation.
Senior Vue / TypeScript Developer
2023TekMemoize, LLC
Integrated the BINANA open-source plugin into a Vue + TypeScript interface to render 3D receptor and ligand models, solving prior integration blockers.
Flutter Developer
2023WWrightapp Ltd
Built an offline-first snag-capture app for UK house building with FastAPI, Lambda, Cognito, plot organization, and full PDF reporting.
Stripe Expert
2023Lowheads LLC
Developed bulk vendor payouts, auto-approved in-transit payments, and dummy-address handling for international orders while optimizing SQL performance.
JavaScript Front-end Developer
2022 - 2023Apex Dental Partners, LLC
Built reusable CSS helpers, a multi-filter custom dropdown with Stimulus, and a configurable date-range picker, plus print-friendly responsive fixes.
Projects
Products I've helped build
Savvology Games
100% skill-based gaming platform. Owned the full product, designed the player-matching algorithm and infrastructure for thousands of concurrent users — 50,000+ downloads in the first week.
Pathloom
The world's first all-in-one outdoor trip-planning app. Led front- and back-end development and improved the Mapbox clustering algorithm with custom overlays and map interactions.
Zabbit
A contactless dine-in experience with menus, group orders, and real-time group ordering. Lead developer across front and back end, integrating Stripe Express and contactless payments.
Thousand Greens
A community platform for private-club golfers. Took over a partially finished project, delivered a launch strategy, and integrated Stripe subscriptions — now serving 10,000+ golfers.
Orby AI
Enterprise automation platform powered by a large action model. Served as front-end lead building scalable UI systems, an internal Material UI library, and accessibility improvements.
PlotTech
A structured snag, fire-audit, and Part-L capture app for UK home building — an on-site mobile app that works with no network and automates the snagging process.
Oberit
A mental-health app redefining recovery through positive, sustainable habit-building. Built APIs syncing HealthKit data and a notification module driven by user activity.
PharmAssess
An Angular + Python platform helping pharmacists evaluate, diagnose, and document common ailments. Built the appointment and minor-ailment modules end to end.
Also worked on
Launch Fund
A SaaS platform connecting startups and investors with workflows, investment tracking, and automated follow-ups.
NativeUgc
A marketplace connecting brands with talented UGC video-ad creators to produce impactful product ads worldwide.
METABOLIC
A group strength-training program app delivering personalized coaching across multiple locations and communities.
Skills
Tools of the trade
Languages
TypeScript JavaScript Python PHP Dart SQL GraphQL HTML5 CSS
Frameworks
Next.js NestJS Express.js Nuxt.js Laravel Flutter Ionic Quasar AdonisJS Tailwind CSS Material UI Bootstrap
Libraries & APIs
React Vue Node.js Redux Socket.IO Stripe API Stripe Connect Mapbox GL Google Maps Twilio API Playwright Chart.js
Platforms
AWS AWS Lambda Elastic Beanstalk Amazon EC2 Firebase Vercel Docker Google Cloud DigitalOcean Heroku Linux iOS / Android
Storage
PostgreSQL MongoDB MySQL Redis Cloud Firestore Elasticsearch DynamoDB PostGIS Amazon S3 MariaDB
Tools
Git GitHub Bitbucket Figma Jira Notion Sentry SonarQube Jenkins Zapier n8n Stripe Sigma
Paradigms
REST Microservices DevOps Agile CI/CD Offline-first Responsive Web Design UI / UX Design API Architecture Unit Testing
Education
Education & certifications
Education
Bachelor's Degree in Computer Science, Cloud Computing & Information Security
2015 - 2019Poornima University — Jaipur, India
Certifications
JavaScript (Basic) Certificate
Jul 2021HackerRank
Problem Solving (Basic) Certificate
Jun 2021HackerRank
Get in touch
Let's build something great
I'm open to full-stack engineering roles and freelance projects. Reach out and let's talk about how I can help bring your product to life.