Open to opportunities

Sagar Joshi

@sagarjoshi

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Full-stack web developer bridging AI/ML into production-grade, user-centric apps.

Nepal

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What I'm looking for

I’m looking to build production-grade full-stack products where AI/ML models power real user workflows, with a focus on performance, clean APIs, and cross-functional teamwork—available for freelance or contract work.

I’m a full-stack web developer and AI/ML practitioner with 2+ years building production-grade applications. I focus on shipping intelligent, user-centric software using React.js, Next.js, Node.js, and NestJS—plus micro-frontend/microservice architecture, REST and gRPC APIs, and performance optimization across SSR, SSG, and ISR.

I’ve trained and shipped fine-tuned NLP models (BART, T5) into real web products, and I enjoy leading frontend execution end-to-end. From integrating Next.js views into Flutter WebView experiences to building microservices over Protocol Buffers (gRPC) and delivering e-commerce and learning platforms, I bring a hands-on, cross-functional mindset that bridges AI and web into products people actually use.

Experience

Work history, roles, and key accomplishments

Current

Frontend Web Developer

Current

Karobar

Sep 2025 - Present (10 months)

Build and ship features for the Karobar admin panel, web app, and dynamic e-commerce storefront as a mid-level frontend engineer. Implement Next.js web views inside a Flutter WebView with bidirectional native–web communication for state synchronization.

Next.js Shadcn Ui Tanstack Query Zustand Flutter WebView JavaScript Bridges

Current

Full-Stack Web Engineer

Current

Mega-Mentorship

Jan 2024 - Present (2 years 6 months)

Own the full stack for Mega-Med, a medical-entrance exam-prep platform, building the frontend, designing database schemas, and shaping backend architecture. Developed a student-progress API in NestJS and delivered daily and weekly mock-test and mentorship features.

Ant Design NestJS Database Schema Design API Development

Full-Stack Web Developer

Persa AI

Sep 2025 - Oct 2025 (1 month)

Built the complete PersaAI full-stack web application end-to-end using Next.js, shadcn/ui, and Prisma ORM. Integrated a voice-assistant AI to deliver an AI-driven conversational web experience.

Next.js Shadcn Ui Prisma Full Stack Voice AI Conversational AI

Full-Stack Web Developer

Sevenledger

Apr 2024 - Aug 2025 (1 year 4 months)

Contributed across frontend and backend development using React.js, Next.js, Ant Design, and NestJS. Implemented a micro-frontend architecture with Vite Module Federation and integrated NestJS microservices over gRPC (Protocol Buffers), while optimizing SSR/SSG/ISR and dynamic caching for a dynamic e-commerce storefront.

React Next.js Ant Design NestJS Module Federation Micro Frontend Architecture gRPC Protocol Buffers SSR SSG ISR ISR Git Submodules

Trainee Frontend Developer

Sevenledger

Mar 2024 - Apr 2024 (1 month)

Developed a responsive product landing page for the Dhoon Accounting app in Next.js. Translated Figma designs into UI alongside a senior designer to improve user satisfaction.

Next.js Responsive Web Design Frontend Development