45%
Faster page loads
Reduced page load times by 45% with server-side rendering and optimized rendering strategies on an enterprise e-commerce platform at Dentsu.
Proof of impact
Impact
Measurable outcomes, company-safe case studies, and the leadership habits behind them, across full-stack delivery, performance, permissions, and payments.
45%
Faster page loads
60%
Improved query performance
10K+
Concurrent users supported
7
Projects delivered
Outcomes
How each number was earned
Performance, scale, delivery, and product results, each tied to the team and product where it happened.
60%
Improved query performance
Optimized database queries and indexing strategies at Dentsu, achieving 60% faster query execution under production load.
10K+
Concurrent users supported
Built e-commerce systems at Dentsu that handled 10,000+ concurrent users with reliable uptime and performance.
7
Projects delivered
Delivered 7 production projects across Particle41 (flagship platform) and Dentsu (6 client projects) with high quality and on-time execution.
Particle41 & Dentsu
50+
Reusable UI components
Built a design system of 50+ components at Particle41 with shared mutation helpers and standardized loading, empty, and error states across every feature.
3
Production apps contributed to
Contributed across a web app, a new admin portal, and a NestJS API on a production platform at Particle41, from auth and RBAC to layered architecture and API docs.
100%
Endpoints behind granular RBAC
Designed a permission system at Particle41 with token-based auth, role-based guards, and resource-level access control enforced on every API endpoint.
3
Test layers gating every push
Unit tests on use cases and repositories, Playwright browser tests, and an HTTP-level e2e suite against a test database, all enforced by pre-commit and pre-push hooks at Particle41.
30%
Increased user engagement
Drove a 30% increase in user engagement for a global athletic brand through frontend optimizations at Dentsu.
20%
Higher payment conversion
Integrated the Razorpay payment gateway with success, failure, and retry paths, lifting successful transactions by 20% at Dentsu.
Case Studies
Company-safe examples of how I work
Real products shipped in real teams, described by ownership and outcome rather than confidential detail.
Particle41
Current2025 – PresentFull-stack platform delivery
Delivered a production platform with a granular permission system, a document manager, structured approval workflows, and comprehensive e2e test coverage across both codebases.
- Next.js
- NestJS 11
- TypeORM
- PostgreSQL
- TypeScript
- Redux
- Vitest
- Playwright
- Supertest
- Context
- Full-stack developer on the team building a production web platform at Particle41, working across the Next.js web client and the NestJS API.
- Problem
- The platform needed production-grade domain logic, granular role-based access control, and enterprise-level security standards across multiple codebases.
- What I owned
- Delivered features across both codebases: the web client with 50+ reusable components, server routes, and centralized state management, plus the API with layered architecture, auth guards, database repositories, API documentation, and end-to-end test coverage.
Particle41
Current2025 – PresentDocument management with granular permissions
Shipped a production document manager with folder/file operations, bulk actions, automatic conflict handling, and role-based access levels. Comprehensive end-to-end test coverage across all document operations.
- Next.js
- NestJS 11
- TypeORM
- PostgreSQL
- TypeScript
- S3
- Context
- A production platform needed a full document management system with folder/file hierarchies, search, and fine-grained access control tied to user roles.
- Problem
- Users needed to upload, organize, search, and share documents with different permission levels per role, while handling edge cases like naming conflicts, bulk operations, and nested path resolution.
- What I owned
- Built the document management UI with tree navigation, drag-and-drop, bulk move, search/sort/filter, and conflict resolution. Built the document API with authentication and role-based permission checks, paginated queries, and per-row access control.
Particle41
Current2025 – PresentAuthentication and permissions architecture
Delivered production auth with httpOnly refresh cookies, invitation-based onboarding, and a role-based permission system enforced consistently across API controllers and web routes.
- Next.js
- NestJS 11
- TypeORM
- PostgreSQL
- TypeScript
- JWT
- Redux
- Context
- A production platform required a robust authentication pipeline, a role-based permission system, and an invitation-based onboarding flow.
- Problem
- The platform needed secure JWT and refresh token flows, invitation-based onboarding, and a permission model flexible enough to be configured per role.
- What I owned
- Built the authentication API with credential validation, refresh token handling, registration pipelines, and structured error responses. Implemented the permissions layer on the web client with centralized permission state, route-level access gating, and a role editor UI. Built the invitation API with validate, accept, and register flows.
Dentsu
Past2022 – 2025Storefront catalog, search, and cart for a global athletic brand
Drove a 30% lift in user engagement, cut page load times by 45%, and kept the platform responsive for 10,000+ concurrent shoppers.
- React
- TypeScript
- Node.js
- Express
- Tailwind CSS
- Prisma
- MySQL
- Context
- Client team at Dentsu building an enterprise e-commerce platform for a leading global athletic brand, with a shopper-facing storefront and an internal back office.
- Problem
- Shoppers needed fast product discovery and a cart that kept up with them across the site, while catalog changes had to reach search results without going stale.
- What I owned
- Built the product listing and product detail pages for both the storefront and the back office, covering filters, sorting, pagination, image galleries, and variant selection. Built the mini cart and product search end to end: type-ahead suggestions, a results page with filters and sorting, and an indexing pipeline that picked up product changes.
Dentsu
Past2022 – 2025Payments, inventory, and an event-driven order pipeline
Lifted successful transactions by 20%, stopped overselling under load, and decoupled checkout from downstream services.
- Node.js
- Express
- TypeScript
- Kafka
- Redis
- Prisma
- MySQL
- Context
- Checkout and order backend for the same e-commerce platform, where many shoppers could buy the same item at once and every order fanned out to several downstream services.
- Problem
- Stock counts drifted under concurrent purchases, checkout waited on every downstream service to answer, and payment failures needed clean retry paths.
- What I owned
- Integrated the Razorpay payment gateway with success, failure, and retry handling. Worked on the inventory service using Redis locks with short expiry to prevent overselling. Moved post-payment work onto Kafka events so order updates, inventory changes, and notifications ran independently of checkout.
Dentsu
Past2024 – 2025Internal reusable component library
Reduced UI development time significantly by providing ready-to-use, well-documented components. Improved design consistency across teams and established a single source of truth for frontend patterns within the organization.
- React
- TypeScript
- Tailwind CSS
- Storybook
- Jest
- Context
- Frontend teams across Dentsu were building similar UI patterns independently, leading to inconsistent experiences and duplicated effort across projects.
- Problem
- There was no shared component system, so teams were shipping inconsistent UIs, spending time rebuilding common patterns, and struggling to maintain design coherence across products.
- What I owned
- Led the creation of a reusable component package with 50+ components used across internal frontend systems, including Accordion, Data Table, Dialog, Drawer, Command, and Combobox. Collaborated with 3 teammates to build comprehensive documentation alongside the library.
57 components built
- Accordion
- Alert
- Alert Dialog
- Aspect Ratio
- Avatar
- Badge
- Breadcrumb
- Button
- Button Group
- Calendar
- Card
- Carousel
Core Expertise
How I contribute across the stack
Where I go deepest: React and Next.js on the front, Node and NestJS APIs on relational data behind them, and the tooling to ship it reliably.
Frontend
- React
- Next.js
- JavaScript
- TypeScript
- Tailwind CSS
- Zustand
- Framer Motion
Backend
- Node.js
- NestJS
- Express.js
- Prisma ORM
- REST APIs
- Socket.io
- WebRTC
Database
- MongoDB
- Mongoose
- PostgreSQL
- TypeORM
- MySQL
- Prisma
Tools
- JIRA
- Figma
- WebStorm
- VS Code
- Cursor
- Postman
- Google Gemini API
- Cloudinary
- Joi Validator
- JWT
- Codex
DevOps & Workflow
- Git
- CI/CD
- Claude Code
- Docker
- Vercel
Architecture
- System Design
- HLD
- LLD
Leadership
How I support teams
Beyond shipping code: the ownership, mentoring, and quality habits that help teams move faster.
Set up a new admin portal from scratch
Took ownership of setting up an internal admin portal at Particle41, from project structure and quality gates to light and dark themes and read-only user impersonation.
Built a shared component library for multiple teams
Led a 50+ component package at Dentsu and wrote its documentation, giving frontend teams one source of truth.
Reviewed, mentored, and kept patterns consistent
Reviewed teammates' pull requests, maintained the shared React library, and mentored a frontend developer through component design and state management.
Set the quality gates the team ships through
Two-tier test strategy (unit, Playwright, HTTP e2e against a test database) enforced by pre-commit and pre-push hooks running tests, lint, and build.
Testimonials
What colleagues say
Feedback from people I've worked with across teams and companies.
Rizon's proactiveness and commitment to [the project] have made a lasting impact on the team's deliverables. He consistently completes his work on time and is always ready to take on new challenges as they arise.
Rizon took ownership of setting up [the] Admin Portal and used his creativity to come up with a great design, including support for both light and dark themes. His consistent excellence and strong sense of ownership have been key to delivering high-quality features on this project.
Aniruddh Bhilvare
Wall of FameStaff Engineer · Particle41
1 / 2
Rizon has amazing technical skills and is a great team player. He helped us build frontend applications using React and Next.js, and connected them to our databases. He solves complex problems easily while writing clean, reliable code. His work made our systems faster and improved the overall code quality.
Aparna Sharma
Technical Lead · PayPal
Rizon played a key role in our projects, especially for Ralph Lauren. He is excellent at full-stack development, using React and Next.js for the UI and Express.js with NestJS for backend services. He also designed our database schemas to handle high traffic and make queries faster. His work was always top quality.
Vishal Ugale
Software Developer · Infosys
It was a pleasure working with Rizon on our flagship e-commerce project. He has great frontend skills in React and Next.js, and understands how to connect them with databases efficiently. He focused on making our pages load much faster, which improved user engagement and made the site run smoothly.
Ankit Dudhat
Software Developer · NTT Data
Rizon is really good at solving difficult problems step-by-step. He designed stable APIs for us using NestJS and Express.js, and handled complex database structures with ease. He also has strong React and Next.js skills. He always delivers clean, organized code that is very easy for the team to maintain.
Ila Raj
SDE-2 · Oracle
Rizon's work on the Weather Tech site showed that he can handle both frontend and backend work easily. He used React and Next.js to build beautiful user interfaces, and Express.js and NestJS to build strong APIs. He also optimized our database performance, making sure everything runs perfectly.
Prashant Singh Rajput
SFMC Developer · Dentsu
Rizon has top-notch React and Next.js skills. He made great design choices for our frontend components and state management, setting a strong standard for the team. He also helped structure our relational databases to keep queries fast and clean. His code is always structured and easy to read.
Rishon Kumar
SAP Hybrid Developer · Nagroo
Rizon's full-stack development skills are really impressive. He builds highly secure APIs using Express.js and NestJS, and integrates them with frontend applications built on React and Next.js. He is also highly skilled with database management and optimization. He always delivers robust solutions that work perfectly.
Saktiya
Senior Software Developer · Valuelabs
Rizon is very dedicated and pays close attention to details. He helped build web applications using React and Next.js, and wrote efficient queries for our relational databases. His strong work ethic, technical skills, and clean coding standards make him a standout software engineer in any team.
Tushar Bansal
Student · University of Adelaide
Rizon has excellent technical abilities. He worked on our projects using React.js, Next.js, and NestJS, creating highly responsive UIs and robust backend APIs. He also optimized our database queries, which made our systems run much faster. His structured approach to coding is fantastic.
Anurag
Technical Lead · Synechron
Rizon's mentorship in React and JavaScript was extremely valuable to me. He has a gift for breaking down complex concepts, and his guidance on components design and state management accelerated my learning curve immensely.
Abhishek
Frontend Developer (Mentee) · Mentorship
Company-safe proof · Architectures and outcomes described accurately, no confidential details
Next step
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Role-by-role history, or the resume as a PDF.
The soul is neither born, and nor does it die. It is not that having once existed, it ceases to be.
— Bhagavad Gita, 2.20