Hi, I'm Syed EhsanFull Stack EngineerBackend-first. Product-minded.

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engineer.go
● live
// Build production-grade backend systems
func Build() Engineer {
  return Engineer{
    Focus:  "Scalable APIs, SaaS, Distributed Systems",
    Stack:  "Go, Node, PostgreSQL, Redis, Kafka",
    Status: "Open to remote opportunities",
  }
}

I learn whatever the product needs, then ship it: AI agents, payment ledgers, map engines, real-time APIs, and the interface people actually touch.

Resume

Featured

Projects

Merchantly screenshot

Merchantly

Live

AI-powered multi-tenant ecommerce platform

Describe your business and Merchantly builds a complete storefront. One platform hosts many independent brands, each with its own domain, theme and admin.

  • →Tenant resolution via subdomains, custom domains and store IDs
  • →Inventory locking to prevent overselling during traffic spikes
  • →Super Admin control console for every store, plan and usage limit
Lead developer
GoNext.jsPostgreSQLRazorpay+1
TraviDesk screenshot

TraviDesk

Live

Operating system for travel agencies

One booking record connects the lead, itinerary, vendor rates, proposal, payments and profit, so agencies stop juggling WhatsApp chats and spreadsheets.

  • →Postgres row-level security for strict tenant isolation
  • →Proposals with viewed and approved states, plus trip profit tracking
  • →Role-based access for owner, sales, operations and accountant
Solo
Next.jsFastifyDrizzlePostgreSQL+1
Datatawk AI screenshot

Datatawk AI

Live

Natural-language analytics agents

AI analysts that turn plain-English questions into safe, executable SQL with charts and reports. Built solo for a client.

  • →Secure agent workflows with a query-safety and rate-limit layer
  • →Self-improving feedback loop for generated SQL
  • →Instant charts for non-technical users
Solo · client build
Next.jsNode.jsAzure OpenAISQL Server+1
PlotCRM screenshot

PlotCRM

Live

Enterprise real estate for Dream City

Runs thousands of plots across large land development projects, with interactive SVG maps and an automated financial ledger. Freelance engagement.

  • →10,000+ plots managed with live Available / Booked / On-Hold status
  • →Multi-tier commission engine with performance slabs
  • →EMI scheduling, overdue alerts and a full audit trail
Solo · freelance
Next.jsNode.jsPostgreSQLSVG maps+1
Plot Sales CRM screenshot

Plot Sales CRM

Live

Map-first land inventory for local developers

Draw, cut and sell irregular parcels while keeping parent and child lineage and the remaining land. Built around Bihar's real-world land.

  • →Server-validated parcel geometry, including scanned plans
  • →Leads, site visits, bookings and partial payments in one flow
  • →Custom permission matrix and plan entitlements per organization
SydInnovations
Next.jsFastifyPostGISMapLibre+1
PropertyCRM screenshot

PropertyCRM

Live

Custom property sales platform

Project, unit, customer, deal and payment plan lifecycle for property developers, with documents, WhatsApp and collections tied to construction milestones.

  • →Payment plans tied to construction states (CLP, Down Payment, Flexi)
  • →Cron jobs for payment schedules and email reminders
  • →Automated PDF receipts and KYC records
SydInnovations
Express.jsPostgreSQLPrismaAWS S3+1
ShopOnline screenshot

ShopOnline

Live

Done-for-you ecommerce

Branded online stores built and operated for small businesses, with products, orders, payments and shipping connected in one admin.

  • →Order flow from storefront to payment to shipment and inventory
  • →Coupons, AWB assignment and re-sync from the admin
  • →Live client stores listed on the landing site
Client build
Next.jsAstroTailwindPayments+1
AI Sports Delhi screenshot

AI Sports Delhi

Live

Cricket gear store with worldwide shipping

Ecommerce storefront for a cricket equipment brand, with category browsing, search, wishlist and international shipping.

  • →Catalogue across bats, protection, helmets, footwear and bags
  • →Search, wishlist and cart flows
  • →Shipping rules for India and international orders
Client build
Next.jsTailwindPaymentsAdmin dashboard
SBMark screenshot

SBMark

Live

AI career intelligence platform

Helps professionals find opportunities, prepare and get hired, guided by an AI career partner called MARK and a Career DNA profile.

  • →Career DNA scoring from multiple signals
  • →Conversational AI assistant embedded across the site
  • →Opportunity matching and interview preparation
Solo
Next.jsAI agentsTailwindVercel
Watchtower screenshot

Watchtower

Open source

Open-source server and uptime monitoring

A self-hosted dashboard that watches servers, Docker containers, PM2 processes, systemd services and HTTP/TCP endpoints over SSH, with no agents to install. Push alerts, incidents, and restarts behind a typed confirmation and an audit log.

  • →SSH keys encrypted at rest with AES-256-GCM, never returned by the API
  • →Isolated projects with owner, admin and read-only member roles
  • →Installable PWA with Web Push alerts
Creator · open source
Next.jsFastifyPrismaPostgreSQLSSH

More builds

9+ and counting

SydOS

Internal

Multi-tenant operating system for teams

Connects projects, people, permissions, work, client records, infrastructure and a protected credentials vault in one workspace.

Solo
Next.jsFastifyTanStack Query+1

Syd Signal

Internal

Lead research and outreach CRM

Turns messy CSV/XLSX lead lists into a deduplicated, searchable base with a full log of every email, call and reply.

Solo
Next.jsMongoDBSheetJS+1

Talkbase

Building

English to safe MongoDB queries

Samples a customer's schema, turns a question into read-only MQL and executes it, with strict safety boundaries.

Solo
Node.jsMongoDBSupabase+1

AI Voice Call Agent

Internal

After-hours AI receptionist

Forwards calls in business hours; after hours an AI answers from a knowledge base and captures leads.

Solo
TwilioOpenAI RealtimeExpress+1

Fitquest Backend

In production

Gamification API for an education platform

25+ services and 350+ REST endpoints with real-time leaderboards over WebSockets.

Backend developer
Node.jsPostgreSQLSocket.IO+2

Scalable E-commerce Backend

Internal

Concurrency-safe commerce in Go

Reservation-based stock, idempotent payment flows and Redis caching to stop overselling under load.

Solo
GoPostgreSQLRedis+1
SYSTEM PROFILE

Backend Engineer building AI platforms

Backend software engineer building high-concurrency systems, AI agent workflows, and event-driven architectures. Taking full ownership from database schema design to cloud deployment.

System Status: Active

Currently scaling distributed architectures with 350+ endpoints and integrating AI-powered analytics pipelines into SQL Server.

Availability: Open to high-impact remote backend roles & consulting

Core Expertise

Go (Golang)Node.jsPostgreSQLRedisDockerKafkaSystem DesignAI Engineering
SYSTEM ARCHITECTURE NODE GRAPH
60 FPS DATA FLOW
API GatewayRate Limit / AuthGo / Node ServiceEvent Loop & RESTRedis CacheSub-ms In-MemoryPostgreSQL / SQLACID & SchemaAI Worker PoolLLM & Vector DB
TECH STACK

What we build with

Next.js
React
Node.js
TypeScript
Python
Go
Gin
Fiber
Java
C#
C++
PHP
React Native
Flutter
Expo
Three.js
Next.js
React
Node.js
TypeScript
Python
Go
Gin
Fiber
Java
C#
C++
PHP
React Native
Flutter
Expo
Three.js
Next.js
React
Node.js
TypeScript
Python
Go
Gin
Fiber
Java
C#
C++
PHP
React Native
Flutter
Expo
Three.js
Next.js
React
Node.js
TypeScript
Python
Go
Gin
Fiber
Java
C#
C++
PHP
React Native
Flutter
Expo
Three.js
Django
Flask
FastAPI
LangChain
LlamaIndex
Hugging Face
Claude API
OpenAI API
Qdrant
Pinecone
Zod
Strapi
Fastify
Express.js
NestJS
Hono
Django
Flask
FastAPI
LangChain
LlamaIndex
Hugging Face
Claude API
OpenAI API
Qdrant
Pinecone
Zod
Strapi
Fastify
Express.js
NestJS
Hono
Django
Flask
FastAPI
LangChain
LlamaIndex
Hugging Face
Claude API
OpenAI API
Qdrant
Pinecone
Zod
Strapi
Fastify
Express.js
NestJS
Hono
Django
Flask
FastAPI
LangChain
LlamaIndex
Hugging Face
Claude API
OpenAI API
Qdrant
Pinecone
Zod
Strapi
Fastify
Express.js
NestJS
Hono
MongoDB
Redis
MySQL
SQL Server
Supabase
Firebase
DynamoDB
DuckDB
CockroachDB
Elasticsearch
Drizzle ORM
Prisma
PostgreSQL
MongoDB
Redis
MySQL
SQL Server
Supabase
Firebase
DynamoDB
DuckDB
CockroachDB
Elasticsearch
Drizzle ORM
Prisma
PostgreSQL
MongoDB
Redis
MySQL
SQL Server
Supabase
Firebase
DynamoDB
DuckDB
CockroachDB
Elasticsearch
Drizzle ORM
Prisma
PostgreSQL
MongoDB
Redis
MySQL
SQL Server
Supabase
Firebase
DynamoDB
DuckDB
CockroachDB
Elasticsearch
Drizzle ORM
Prisma
PostgreSQL
Cloudflare R2
Railway
Render
RabbitMQ
Kafka
BullMQ
AWS S3
Microsoft Fabric
Nginx
GitHub Actions
Auth0
Clerk
Keycloak
Stripe
Razorpay
Docker
Kubernetes
Cloudflare R2
Railway
Render
RabbitMQ
Kafka
BullMQ
AWS S3
Microsoft Fabric
Nginx
GitHub Actions
Auth0
Clerk
Keycloak
Stripe
Razorpay
Docker
Kubernetes
Cloudflare R2
Railway
Render
RabbitMQ
Kafka
BullMQ
AWS S3
Microsoft Fabric
Nginx
GitHub Actions
Auth0
Clerk
Keycloak
Stripe
Razorpay
Docker
Kubernetes
Cloudflare R2
Railway
Render
RabbitMQ
Kafka
BullMQ
AWS S3
Microsoft Fabric
Nginx
GitHub Actions
Auth0
Clerk
Keycloak
Stripe
Razorpay
Docker
Kubernetes
➜/sys/logs

Deployment History

Production systems shipped. Architectures designed. Teams enabled.

01

Software Developer

Udshaa

Internship
Feb 2024 – Present•1 yr

Datatawk — enterprise AI analytics converting natural language to SQL. Built AI agent workflows, self-improving feedback loops, KPI dashboards, and integrated Microsoft Fabric & Power BI.

Next.jsNode.jsMongoDBAzure OpenAISQL ServerMicrosoft Fabric
02

Full Stack Developer

Quickgick™

Internship
Aug 2024 – Nov 2024•4 mos

Full-stack educational platform with gamification, competition management, and social learning. Built RESTful API across 3 admin portals, real-time notifications, and automated scoring.

Next.jsTypeScriptNode.jsPostgreSQLSocket.IODockerGCP
03

Full-stack Developer

Sihari Labs Pvt Ltd

Freelance
Mar 2025 – May 2025•3 mos

Property & Invoicing Management System for real estate. Role-based access, milestone tracking, dynamic payment plans, PDF receipts, cron-triggered email reminders.

Next.jsTypeScriptExpress.jsPostgreSQLPrismaAWS S3
04

Frontend Developer

PRNK Infotech LLP

Freelance
Nov 2024 – Aug 2025•10 mos

Responsive web and mobile apps across multiple client projects. Mobile-first UI/UX, reusable component libraries, and performance & accessibility improvements.

React.jsNext.jsReact NativeTailwind CSSJavaScript
05

Full-stack Developer

AIment

Freelance
Oct 2024 – Jan 2025•4 mos

GenAI-powered features with Flask and Express.js. AI agents, data analysis APIs, and chatbot systems using OpenAI/LLM models with secure proxy API routing.

FlaskPythonNode.jsExpress.jsReact.jsOpenAI
06

Full Stack Developer

Reflense

Internship
Aug 2024 – Nov 2024•4 mos

MERN stack web development — features spanning Node.js, React.js, Express.js, MongoDB, PostgreSQL, and Firebase across diverse client products.

MERN StackFirebaseNode.jsPostgreSQLMongoDB
Get In Touch

Let's Connect

Reach out to discuss architecture, backend systems, or potential collaborations.

Location

India (Remote)

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