Available for freelance projects worldwide

Hi, I'm

Deepak Kaushal

Senior Software Developer

Marketplace Expert · Sharetribe Specialist · AI Code Auditor · Full-Stack Engineer

I build scalable marketplace platforms and web applications — on Sharetribe Flex, fully custom, or any stack — and audit AI-generated codebases for production readiness. Specializing in React, Next.js, Node.js, and Sharetribe Flex — from architecture to deployment.

View My WorkGet In TouchDownload Resume
ReactNext.jsNode.jsTypeScriptGraphQLSharetribeShopifyPostgreSQLMongoDBAWS
Deepak Kaushal — Senior Software Developer
💼

6+ Years

Experience

⚡

Full-Stack

Developer

scroll

Services

What I Offer

Specialized services built around your business goals

🏪

Marketplace Development

End-to-end multi-vendor marketplace platforms — on Sharetribe Flex or fully custom-built from scratch. From custom React frontends to payment flows, real-time messaging, and admin dashboards — built to scale.

  • Sharetribe Flex or fully custom stack
  • Custom React / Next.js frontend
  • Stripe Connect & payment flows
  • Real-time messaging & notifications
  • Multi-language & multi-currency support
  • Admin dashboard & analytics
Discuss your marketplace
⚡

Full-Stack Web Applications

Complete web applications from database architecture to pixel-perfect UI. I own the full stack — React, Next.js, Node.js, GraphQL — and deliver production-ready code.

  • SSR & SSG with Next.js
  • REST & GraphQL API design
  • PostgreSQL & MongoDB
  • Authentication & role-based access
  • Real-time features with Socket.io
  • Cloud deployment on AWS / Vercel
Start your project
🛍️

Shopify Development

Custom Shopify storefronts, headless commerce experiences, and private apps that go beyond what standard themes can offer — built for speed, conversion, and scale.

  • Headless storefront with Next.js
  • Custom Liquid theme development
  • Shopify Storefront & Admin API
  • Private app & webhook development
  • Checkout extensions & customisation
  • Performance & conversion optimisation
Upgrade your store
🤖

AI Integration

Embed intelligent capabilities into your existing product or build AI-first tools from scratch. Specialising in LLM APIs, semantic search, and workflow automation.

  • OpenAI & Anthropic API integration
  • RAG pipelines & vector embeddings
  • AI-powered search & recommendations
  • Chatbots & conversational UI
  • Automated content generation
  • LLM-powered workflow automation
Explore AI for your product
🔍

AI Code Review & Rescue

Got a codebase written by ChatGPT, Cursor, Claude, or Copilot? I audit AI-generated code for security holes, missing error handling, scalability issues, and anti-patterns — then refactor it to production-ready quality.

  • Full codebase audit & written report
  • Security vulnerability detection
  • Performance & scalability review
  • Refactoring to production standards
  • Architecture & database review
  • Code quality & maintainability
Get your code audited

Not sure which service fits your needs?

Let's Talk About Your Project

Who I am

About Me

6+

Years Experience

50+

Projects Delivered

30+

Happy Clients

15+

Technologies

My Story

I'm a Senior Software Developer with a passion for crafting modern, scalable web applications that solve real-world problems. With years of hands-on experience, I specialize in building full-stack platforms from concept to production.

I thrive at the intersection of clean architecture, great user experience, and business impact. Whether building a multi-vendor marketplace with Sharetribe Flex, a headless Shopify storefront, an AI-powered SaaS product, or auditing and rescuing an AI-generated codebase — I deliver complete, production-ready solutions.

Always exploring emerging tools and technologies, I grow best in environments that challenge me to push boundaries. Let's build something great together.

Let's Work TogetherView Resume

What I Do

⚡

Full-Stack Development

End-to-end applications from database design to pixel-perfect UIs using React, Next.js, Node.js, and modern APIs.

🛒

Marketplace Platforms

Scalable, multi-vendor marketplaces with Sharetribe Flex — real-time messaging, payments, reviews, and admin tools.

🤖

AI Integration

Embedding LLM capabilities into products — OpenAI, Anthropic, vector search, semantic embeddings, and RAG pipelines.

🛍️

Shopify & E-commerce

Custom Shopify themes, headless storefronts via Storefront API, and private apps with webhooks and Liquid templating.

Career

Work Experience

Independent Software Consultant

Current

Freelance / Self-Employed

June 2026 – PresentRemote — Worldwide
  • Working directly with founders and product teams to scope, architect, and ship marketplace platforms — on Sharetribe Flex or custom-built from scratch — covering payments, transaction flows, search, and multi-role user journeys
  • Delivering headless Shopify storefronts, Next.js full-stack applications, and custom integrations end to end — from database design and API layer through to production deployment
  • Building AI-powered features into existing products using OpenAI, Anthropic Claude, and Gemini APIs — assistants, semantic search, content generation, and LLM-driven workflow automation
  • Auditing and remediating AI-generated codebases (Cursor, ChatGPT, Claude, Copilot) for security vulnerabilities, missing error handling, and scalability gaps — then refactoring them to production standards
  • Publishing open-source developer tooling, including Slotkit — a timezone- and DST-correct booking slot engine with an interactive playground

Senior Software Developer

Devscrew.co India

Apr 2024 – June 2026Chandigarh, India
  • Shipped Rareboots — a football boots marketplace with 20,000+ live users — delivering multi-step checkout, GoShippo shipping webhooks, wallet system, custom Stripe payout crons, and location-based search surfacing nearby providers to buyers based on their region
  • Built Niliance NIL athlete marketplace end-to-end across 5 user types: per-type signup and listing edit flows, custom search & filter, bulk user/listing creation, Stripe-powered chat purchases, and a transaction layer with milestone tracking and multi-dimensional filters
  • Modernised Tutulist dancewear marketplace — migrated the full legacy codebase to a new web template, rebuilt Transaction Pages, and delivered a custom analytics Dashboard from scratch
  • Engineered Upwork-style milestone transaction flows across multiple platforms: per-milestone payments, accept/reject/request-changes cycles, and real-time project progress tracking
  • Shipped 20+ marketplace projects integrating GoShippo, EasyPost webhooks, AWS S3 media pipelines, offer/counter-offer flows, Shopify checkout extensions, and live in-place editing with image cropping

Associate Software Developer → Software Developer

Innovative Code Labs Pvt. Ltd.

Feb 2022 – Mar 2024Sahibzada Ajit Singh Nagar, Punjab, India
  • Engineered InsightGig reverse marketplace — designed the full transaction layer including live Socket.io in-transaction chat, real-time notifications, and role-based firm portal for multi-member provider–customer workflows
  • Built AI-powered Brief Creator and Proposal Generator — integrating LLM APIs with Python microservices — enabling users to auto-generate project deliverables directly inside the transaction flow
  • Built a Sharetribe Flex booking marketplace with daily availability calendar, custom Stripe checkout, and a bespoke multi-step booking and confirmation engine
  • Promoted from Associate to Software Developer within 12 months, taking full ownership of end-to-end feature delivery across multiple concurrent client projects

Freelance Software Developer

Self-Employed

2020 – Feb 2022Remote
  • Delivered MERN stack and PostgreSQL projects for multiple clients — spanning REST API design, authentication systems, database architecture, and full-stack feature development
  • Built an automated image moderation pipeline using third-party APIs to detect, flag, and filter user-generated content before it reached production
  • Integrated Stripe and other payment gateways across client sites — owning checkout flows, webhook verification, and transaction record-keeping end to end
  • Independently scoped, built, and shipped projects end-to-end — managing client relationships, estimating timelines, and delivering production deployments without team support

Expertise

Skills & Technologies

⚛️React.js
▲Next.js
🔷TypeScript
🟨JavaScript
🎨Tailwind CSS
🔮GraphQL
🌐HTML5
💅CSS3
🎞️Framer Motion

Portfolio

Projects

A selection of things I've built

Featured01

Multi-Vendor Marketplace Platform

A full-scale marketplace built on Sharetribe Flex with a custom React frontend. Features real-time messaging, Stripe payment integration, admin dashboard, and multi-language support for a global user base.

Sharetribe FlexReactNext.jsNode.jsStripe ConnectPostgreSQLSocket.io
View Case Study →
Featured02

Headless Shopify Storefront

Custom headless e-commerce experience built with Next.js and Shopify Storefront API. Includes advanced product filtering, dynamic cart management, and achieves a 95+ Lighthouse performance score.

ShopifyNext.jsGraphQLTailwind CSSTypeScriptVercel
View Case Study →
03

SaaS Analytics Dashboard

Real-time business analytics platform with role-based access control, interactive data visualizations, CSV export, and webhook integrations for third-party data ingestion.

ReactNode.jsMongoDBSocket.ioRedisChart.jsTypeScript
View Case Study →
04

AI-Powered Content Platform

Content management system with AI-driven writing assistance, automated SEO metadata generation, and semantic search powered by vector embeddings and LLM APIs.

Next.jsOpenAI APIAnthropic APIPostgreSQLpgvectorTypeScriptVercel AI SDK
View Case Study →
GitHub ProfileDiscuss a Project →

Process

How I Work

A transparent, collaborative process designed to keep you in control at every stage

🎯
1
Free 30-min call

Discovery

We start with a free 30-minute call to understand your goals, technical requirements, timeline, and budget. No sales pitch — just an honest conversation about whether we're a good fit.

📋
2
Clear scope & fixed pricing

Proposal & Planning

I deliver a detailed written proposal covering scope, architecture decisions, timeline, and milestone-based pricing. Everything is agreed upfront — no surprise invoices.

⚙️
3
Weekly demos & updates

Development

Work happens in weekly sprints with a live demo or update every Friday. You have full visibility into progress, can give feedback early, and reprioritise at any point.

🚀
4
Clean handover + support

Launch & Handover

I handle deployment, write clear handover documentation, and walk your team through the codebase. Optional ongoing support and maintenance retainers available post-launch.

Currently accepting new projects

Ready to build something great?

The first call is free, no-commitment. Let's talk about your project, timeline, and how I can help.

Book a Free Discovery CallConnect on LinkedIn

FAQ

Common Questions

Everything you need to know before we work together

Contact

Get In Touch

I'm currently open to new opportunities and collaborations. Whether you have a project in mind or just want to connect — my inbox is always open.

Prefer a quick call?

Book a free 30-minute discovery call — no commitment, no sales pitch.

Book a Call
Available for work

Currently open to freelance projects, contract work, and consulting engagements.

Replies within 24 hours

Working with clients worldwide — based in India (IST), comfortable with US & EU hours.

Flexible payments for global & Indian clients

PayPalWisePayoneerBank Transfer (Wire)UPI