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Sunny Sahsi
Open to interesting conversations

Hey, I'm Sunny Sahsi

Associate Full Stack Developer

I build web apps, backend services and AI agents that solve real-world problems.

Patna, Bihar, IndiaRemote (Next.js + Go)
⚡ 2+ Yrs in Production🚀 600+ APIs Agent Orchestration🛠️ Go + Next.js + TypeScript🏍️ 15,480 KM Solo Touring

What I'm focused on right now

Updated 2026-11
  • ▸Working as an Associate Full Stack Developer at Fountane (Next.js + Go).
  • ▸Building an AI chatbot agent that talks to a large set of APIs.
  • ▸Going deeper on AWS, system design and distributed systems.
  • ▸Planning the next ride and editing footage from the last ones.
About Me

Building reliable web backends, intuitive UIs, and agent workflows.

I'm a software developer from Patna, India. I started building for the web while studying Computer Applications at Patna University, contributed to open source with Real Dev Squad, and joined Fountane in August 2024 as a Junior Full Stack Developer. I was recently promoted to Associate Full Stack Developer.

Day to day I work across Next.js and Go: UI with Ant Design, backend services and APIs, payment integrations, and role-based access control. I use AI tools like Claude, Cursor and Antigravity as part of how I build, and I'm now working on an AI chatbot agent that answers natural-language questions by calling internal APIs through an LLM.

Outside code I ride. I have ridden solo from Patna to Ladakh and from Patna to Rameshwaram, and I document the road, the people and the lessons on a separate Rides page.

Current Focus: Orchestrating LLM agents over 600+ internal backend APIs at Fountane, with strict verification and time-window accuracy.
Career Journey

Work Experience

From open-source foundations to owning end-to-end features and backend services at Fountane.

Fountane Inc. logo

Fountane Inc.

Full-timeCurrent
Remote
Aug 2024 — Present

Associate Full Stack Developer

Promoted
2026 — Present
  • ▸Own features end to end across Next.js frontend and Go backend, taking full feature architecture and delivery responsibility.
  • ▸Building an AI chatbot agent backend that lets users ask questions in natural language and get answers by orchestrating internal APIs through an LLM.
  • ▸Auditing and hardening the agent service (data accuracy, time-window filtering, session and user context) using AI-assisted code review plus manual verification.
  • ▸Designing the next phase of the agent: scheduled, event-based and condition-based routines with an approval flow.

Junior Full Stack Developer

Aug 2024 — 2026
  • ▸Developed and optimized web applications using Next.js with Ant Design for consistent UI/UX.
  • ▸Built and maintained scalable backend services in Go, focused on performance and reliability.
  • ▸Designed and shipped a payment API integration and CRUD features end to end.
  • ▸Built a customizable columns and rows feature for a data-heavy frontend table.
  • ▸Implemented user access control and dynamic UI based on authorization levels in Next.js.
  • ▸Wrote unit and integration tests with Vitest and TypeScript.
  • ▸Managed version control, code reviews and CI/CD using GitLab; tracked delivery with Jira.
  • ▸Worked with MySQL and PostgreSQL databases.
Next.jsTypeScriptAnt DesignGoMySQLPostgreSQLGitLab CI/CDVitestJira
Real Dev Squad logo

Real Dev Squad

Open sourceCurrent
Remote
Dec 2022 — Present

Open Source Contributor

Dec 2022 — Present
  • ▸Worked across React, Next.js, Ember and Vue.js codebases.
  • ▸Built the Goal form modal using Vue.js and Vuetify.
Vue.jsVuetifyReactNext.jsEmber
SmartInternz logo

SmartInternz

Externship
Remote
Aug 2022 — Sep 2022

Android Developer (Externship)

Aug 2022 — Sep 2022
  • ▸Built Android apps with Kotlin.
  • ▸Applied Material Design: colour, spacing and typography.
KotlinAndroidMaterial Design
Technical Skills

Skills & Technologies

Languages, frameworks, databases, and tooling I use daily and comfortably in production.

Languages

  • TypeScript
  • JavaScript
  • Go
  • HTML / CSS
  • SQL

Frontend

  • React
  • Next.js
  • Ant Design
  • Tailwind CSS
  • React Query

Backend and APIs

  • Go services and REST APIs
  • Node.js / Express
  • Payment API integration
  • Role-based access control

Databases

  • PostgreSQL
  • MySQL
  • MongoDB

AI and agents

  • LLM-powered chatbot / agent backends
  • Tool/API orchestration for agents
  • Claude
  • Cursor
  • Antigravity

Tools and workflow

  • Git, GitHub, GitLab
  • GitLab CI/CD
  • Vitest (unit and integration tests)
  • Jira
  • Linux
Selected Work

Featured Projects

Production systems, AI chatbot agents, and software built with rigor.

View all projects
Project screenshot
Completed

CareRing

Privacy-first real-time family location intelligence, safety, and emergency response platform with sub-50ms WebSocket telemetry propagation, geofencing, and sub-1% battery drain.

  • ▸Sub-50ms WebSocket telemetry propagation with 60 FPS mobile coordinate interpolation.
  • ▸Hardware-accelerated motion coprocessor filtering with sub-1% battery drain per hour.
React NativeExpo SDKFastifyNode.jsPostgreSQLPostGISWebSocketTypeScript
Project screenshot
Completed

Home Asset Manager

A personal digital operating system for household assets, purchase invoices, warranty lifecycles, and automated maintenance schedules with multimodal AI invoice OCR.

  • ▸Turborepo monorepo sharing strict Zod schemas and validation models across web, mobile, and API.
  • ▸Gemini 2.5 Flash multimodal OCR for automated extraction of invoice serial numbers, vendors, and warranty dates.
Next.jsReact NativeExpo SDKNode.jsPostgreSQLPrismaRedisBullMQGemini AITypeScript
Project screenshot
Completed

GitTrackr

An engineering management dashboard that allows engineering teams and open-source organizations to monitor, triage, and manage GitHub issues, PRs, and contributor velocity.

  • ▸Unified organization issue and pull request dashboard with multi-repo search and smart labeling.
  • ▸GitHub OAuth authentication via NextAuth with fine-grained repository access scopes.
Next.jsTypeScriptNextAuthReact QueryReduxGitHub APIVitestTailwind CSS
Project screenshot
Completed

LinkHub

A link-in-bio platform allowing creators and developers to consolidate social presence, portfolio links, and content into a single high-performance page.

  • ▸Dynamic user profile slug generation with Next.js App Router and server-side rendering for optimal SEO.
  • ▸MongoDB schema design with Mongoose handling link order, click counters, and social icons.
Next.jsTypeScriptNextAuthMongoDBMongooseTailwind CSS
Project screenshot
In Progress
Sanitized for confidentiality

Enterprise AI Chatbot & Agent Orchestrator

A Go backend service that lets operational teams ask questions in plain language and get accurate answers pulled from 600+ microservice APIs by an LLM.

  • ▸Built the chatbot backend service on top of an existing multi-service system.
  • ▸Ran an AI-assisted audit to find implementation issues, then fixed them with manual verification.
GoLLM APIsRESTCursorClaude
Community Impact

Open Source Contributions

Giving back through code, participating in distributed peer reviews, and shipping production features with open community teams.

Real Dev Squad logo

Real Dev Squad

Contributions across Vue.js, React, Next.js and Ember projects.

View Organization
Goal form modal (Vue.js + Vuetify)
Accordion lock for unauthorized users
User status filter
Pull requests on profile page
Academic Background

Education

Academic foundation in core computer science, database systems, and software engineering.

Patna University logo

Patna University

Bachelor of Computer Applications (B.C.A)

2019 — 2022•Score: 8.36 CGPA
Curriculum & Technical Foundation:
C, C++, Java, Python, JavaScriptDatabase managementWeb developmentSoftware engineeringNetworking and administration
Articles & Notes

Latest Writing

Notes on building software, orchestrating AI agents, and engineering trade-offs.

All articles
Off the clock

On Two Wheels

“Patna to the edge of the map, and back.”

When I'm not shipping code, I'm on a motorcycle. These are my long solo rides: the routes, the stories, the telemetry, and what the road taught me.

Patna ➔ Ladakh (Himalayan passes)
Patna ➔ Rameshwaram (Southern tip)
Solo Expeditions
2 Major Solo Rides
Expedition I
Patna to Ladakh
High altitude passes, cold starts & river crossings
Expedition II
Patna to Rameshwaram
Central plateau, coastal rain & the Pamban crossing

Interactive routes, waypoints, gear lists, and field stories.

Get In Touch

Let's build something

Open to interesting engineering conversations, collaborations and ride stories.

Direct Email

Send a message

Typically responds within 24-48 hours.