“Our whole business runs on Excel and WhatsApp.”
What it costs you: Stock, orders and payments never match, and month-end takes days to reconcile.
The Fix
A custom ERP or web app that keeps every number in one place, updated in real time.
OpenAccepting New Projects · India & Worldwide
Freelance Full-Stack Developer & AI Engineer in IndiaTurn Messy Processes Into Software That Just Works
Spreadsheets that break, leads that slip away, hours lost to copy-paste work, an app nobody can fix? I’m Taaran, and I build custom web apps, mobile apps, AI integrations, automation and ERP and CRM systems that make those problems go away — designed, built and supported by one developer you can always reach.
- Services Offered
- 25
- Disciplines Covered
- 8
- Accountable Engineer
- 1
Built For
- Startups & Founders
- Small & Mid-Sized Businesses
- Manufacturers & Traders
- Service Businesses
- Agencies
01Sound Familiar?
Business Problems I Solve Every Week
Most clients don’t come to me asking for “software”. They come because something in the business is leaking time, money or customers. Here are the problems I fix most often.
- Custom ERP Development
“Leads come in, but nobody follows up on time.”
What it costs you: Enquiries from your website, calls and WhatsApp slip through the cracks — and so does revenue.
Custom CRM DevelopmentThe Fix
A custom CRM that captures every lead automatically and reminds your team to follow up.
“My team spends hours copying data between tools.”
What it costs you: Skilled people do data entry, reports go out late and mistakes creep in.
Business Process AutomationThe Fix
Business process automation that moves the data, sends the reports and flags problems for you.
“We answer the same questions a hundred times a day.”
What it costs you: Support and senior staff lose hours repeating answers that already exist in documents.
AI Agent & Chatbot DevelopmentThe Fix
An AI assistant trained on your documents that answers instantly, with the source.
“Our website or app is slow, buggy and hard to change.”
What it costs you: Customers leave, Google rankings drop and every small update takes weeks.
Website & App Speed OptimisationThe Fix
A performance audit and step-by-step modernisation — without stopping the business.
“Our developer disappeared and nobody understands the code.”
What it costs you: You are stuck with software you can’t safely change, fix or grow.
Legacy System ModernisationThe Fix
A code audit, a clear plan and a developer who documents everything and stays reachable.
Don’t See Your Problem Here?
Describe it in a few lines — I’ll tell you honestly whether software can fix it and roughly what it would take.
02Services
Custom Software Development Services, End to End
Websites, web apps, mobile apps, AI, automation, dashboards and ERP and CRM systems — 25 services from one freelance developer, so you never juggle three agencies again. Pick a category to see what’s included.
View All ServicesFast websites and custom web apps that win customers and save your team time.
Web Application Development
Custom web application development for businesses that have outgrown templates and spreadsheets — from a website that actually brings in enquiries to a full SaaS product with logins, payments and dashboards.
Signs You Need This
- Your website looks dated, loads slowly and rarely brings in enquiries.
- Your team runs core work on spreadsheets that break and nobody trusts.
- Your startup idea needs an MVP built properly, not a throwaway prototype.
Web & SaaS
Website Development
Fast, SEO-ready business websites built to rank on Google and turn visitors into enquiries — not just look good.
- Next.js & React
- Technical SEO
- Easy Content Editing
Web & SaaS
Custom Web Application Development
Custom web apps that replace spreadsheets and manual processes — with secure logins, roles, real-time updates and reliable business logic.
- Secure Login & Roles
- Real-Time Updates
- Complex Forms & Workflows
Web & SaaS
SaaS & MVP Development
Launch your SaaS or MVP fast without cutting corners: onboarding, subscription billing, multi-tenancy and analytics built to scale.
- MVP in Weeks
- Subscription Billing
- Multi-Tenancy
Web & SaaS
E-Commerce Website Development
Online stores that load fast, check out smoothly and sync stock with your warehouse — so you stop losing sales and updating inventory by hand.
- Custom Storefronts
- Razorpay & Stripe
- Inventory Sync
03Selected Work
Real Business Problems, Solved With Software
Every case study follows the same honest structure: the problem that was costing the business, the system built to fix it, the technology behind it and the result.
Browse All WorkManufacturing & Distribution · Preview Placeholder
01ERP SystemPlaceholder Project
Operations ERP Platform
One connected system for inventory, purchasing, orders and finance.
- Problem
- Stock levels, purchase orders and invoices lived in separate spreadsheets maintained by different teams, so nobody trusted the numbers and month-end took days to reconcile.
- Solution
- A modular web platform with real-time inventory across locations, purchase approvals, order fulfilment and accounting sync — with role-based access and a full audit trail.
- Outcome
- Placeholder outcome — replace with the measurable result from the real project.
- Result Metric
- —
- Result Metric
- —
- Result Metric
- —
- Next.js
- TypeScript
- Node.js
- PostgreSQL
- Redis
- Docker
Professional Services · Preview Placeholder
02AI IntegrationPlaceholder Project
AI Knowledge Assistant
Cited answers from internal documents, policies and past projects.
- Problem
- Answers to routine questions were buried across shared drives and senior team members’ inboxes, slowing onboarding and interrupting experienced staff throughout the day.
- Solution
- A retrieval-augmented assistant connected to the document store, with per-team permissions, page-level citations, feedback loops and usage and cost dashboards for administrators.
- Outcome
- Placeholder outcome — replace with the measurable result from the real project.
- Result Metric
- —
- Result Metric
- —
- Result Metric
- —
- Python
- FastAPI
- LangGraph
- pgvector
- Next.js
- OpenAI
More Case Studies
Select a project for a quick view
04Business Solutions
Custom ERP, CRM & Automation Built Around How You Work.
When stock lives in one sheet, leads in another and approvals in WhatsApp, things fall through the cracks. I build connected business systems that replace that chaos — so data is entered once, everyone sees the same numbers and nothing depends on memory.
Discuss a Business SystemERP
Stock, orders and finance live in separate spreadsheets.
One connected system with a single source of truth.
CRM
Leads slip through the cracks between inboxes.
Every customer, deal and follow-up in one pipeline.
Business Automation
Skilled people spend hours on copy-paste admin.
Repetitive work runs itself and reports back.
Internal Tools
Teams juggle five apps to finish one task.
Purpose-built tools that match how your team works.
Dashboards
Weekly numbers take a day to assemble.
Live KPIs everyone trusts, always up to date.
AI Assistants
Answers are buried in documents and senior staff.
Cited answers from your own knowledge, instantly.
Workflow Systems
Approvals stall in chat threads and email chains.
Clear stages, owners, deadlines and audit trails.
Reporting Platforms
Reports are rebuilt by hand every month.
Scheduled, accurate reports delivered automatically.
Customer Portals
Customers email to ask for status and documents.
Self-service orders, invoices and support in one place.
Admin Systems
Simple data changes still need a developer.
Secure back-office control with roles and logs.
Build or Buy?
An Honest Comparison
Off-the-shelf software is often the right call. Custom systems win when your process is your advantage, your tools don’t connect, or per-seat costs keep climbing. I’ll tell you which one fits.
| Factor | Off-the-Shelf Software | Custom-Built System |
|---|---|---|
| Fit to Your Process | You adapt your process to the tool | Advantage:The system is shaped around your process |
| Time to Get Started | Advantage:Days — sign up and configure | Weeks — a focused first version |
| Upfront Cost | Advantage:Low monthly subscription | One-time project investment |
| Cost as You Grow | Rises with every seat and add-on | Advantage:Mostly flat hosting and maintenance |
| Integrations | Limited to available connectors | Advantage:Connects to anything with an API |
| Data Ownership | Stored on the vendor’s terms | Advantage:Your database, your rules |
| Competitive Edge | Same tool as your competitors | Advantage:Workflows competitors can’t copy |
05Technology
Fast, Secure and Scalable by Design
Your software should still be easy to change in five years. I use 48 proven, well-supported technologies — Next.js, React Native, Python, Node.js, PostgreSQL and leading AI models — and pick only what your project actually needs.
My Default Stack for a New Product
Adjusted to your team, budget and existing systems
01 · Interface
Next.js + TypeScript
02 · Mobile
React Native
03 · API
FastAPI or Node.js
04 · Data
PostgreSQL
05 · AI
LLM + Evaluations
06 · Deploy
Vercel / AWS + CI
Frontend
Interfaces that are fast on first load and pleasant on the hundredth.
- Next.jsCoreDefault for websites, SaaS and dashboards
- ReactCoreComponent architecture and interactive UI
- TypeScriptCoreEnd-to-end type safety across the stack
- Tailwind CSSCoreDesign systems that stay consistent
- Framer MotionPurposeful, accessible motion
- RechartsCharts and analytics views
Backend
Typed, tested services with clear boundaries.
- PythonCoreAPIs, data and AI workloads
- FastAPICoreHigh-performance Python APIs
- Node.jsCoreJavaScript services and real-time features
- REST & GraphQLDocumented, versioned APIs
- WebSocketsLive updates and streaming
- Background WorkersQueues, retries and scheduled jobs
Mobile
Android and iOS apps from a shared or native codebase.
- React NativeCoreCross-platform apps sharing web logic
- ExpoCoreFast builds and over-the-air updates
- FlutterCross-platform apps with custom UI
- KotlinNative Android features
- SwiftNative iOS features
AI
LLMs and machine learning, evaluated before they ship.
- OpenAI, Claude & GeminiCoreHosted LLMs for reasoning and generation
- LangGraph & LangChainCoreAgent and RAG orchestration
- scikit-learnCoreClassical ML and evaluation
- LightGBM & XGBoostTabular prediction models
- Hugging FaceOpen-weight models and embeddings
- Vector SearchRetrieval over your documents
Databases
Data models designed for correctness first, then speed.
- PostgreSQLCoreDefault relational database
- MySQLExisting and legacy systems
- SQLiteLightweight and embedded workloads
- RedisCaching, queues and rate limits
- MongoDBDocument-shaped data
- pgvectorEmbeddings next to relational data
Cloud
Hosting chosen for your traffic, team and budget.
- VercelCoreFrontend and edge-ready deployments
- AWSCompute, storage and managed services
- Google CloudCompute and data services
- Hugging Face SpacesHosting ML demos and APIs
- CloudflareDNS, CDN and protection
DevOps
Repeatable releases and early warnings when something breaks.
- DockerCoreConsistent environments everywhere
- GitHub ActionsCoreCI/CD, tests and checks on every change
- Automated TestingUnit, integration and end-to-end suites
- Monitoring & AlertsErrors and uptime watched for you
Automation
Workflows that run quietly and tell you when they need you.
- n8nCoreSelf-hostable workflow automation
- Zapier & MakeQuick no-code integrations
- WebhooksEvent-driven connections between apps
- Cron & SchedulersReports and jobs on a timetable
- Browser AutomationWorking with systems that lack APIs
Analytics
Numbers you can trust and act on.
- pandas & NumPyCoreData cleaning and analysis
- SQL AnalyticsCoreReporting straight from source data
- Power BI & MetabaseSelf-serve business dashboards
- Product AnalyticsFunnels, retention and events
- ForecastingDemand, revenue and churn prediction
06Why Work With Me
Why Hire a Freelance Developer Instead of an Agency?
Agencies are expensive, and many freelancers disappear halfway through. You get the best of both: a senior developer who talks to you directly, demos progress every week and stays accountable after launch.
Business-First Development
Every feature is tied to a measurable outcome — revenue, hours saved or risk reduced — before code is written.
Every Project Starts With
- Q1What will this save or earn?
- Q2Who uses it every day?
- Q3What happens if it fails?
- Q4How will we measure success?
Performance by Default
Budgets for load time and query speed are set early and measured, not hoped for.
95+Target
Lighthouse performance target set at the start of every web project and checked before launch.
Security Built In
Input validation, least-privilege access, encrypted secrets and dependency hygiene from day one.
- Validated Inputs
- Least-Privilege Access
- Encrypted Secrets
- Dependency Audits
Clean Architecture
Clear boundaries between UI, business logic and data, so changes stay small and safe.
- Interface
- Business Logic
- Data Access
- Infrastructure
AI-Native Thinking
AI is used where it measurably helps, with sources, guardrails and cost limits — never as decoration.
› Summarise this contract
Renews 1 Mar, 60-day notice.p.4 §12
Clear Communication
Weekly demos, written updates and honest trade-offs. No jargon, no disappearing for weeks.
- MonPlan the Week
- WedLive Demo
- FriWritten Update
Scalable Systems
Designed for the traffic and team you expect next year, without over-engineering today.
Long-Term Maintainability
Typed code, automated tests and documentation your next developer will thank you for.
Automation Mindset
If a task happens every week, it is a candidate to automate — for your team and your codebase.
Reliable Delivery
Scoped milestones, visible progress and estimates that are revised early, not missed late.
Product Thinking
I question requirements, suggest simpler paths and care whether real users succeed.
07Process
A Clear Process. No Surprises, No Ghosting.
Missed deadlines and silent developers are the biggest fear in any software project. My 7-stage process gives you a fixed scope, weekly demos and written updates — so you always know what’s done, what’s next and what it costs.
- Live Demo Cadence
- Weekly
- Source Code Ownership
- Yours
01Discover
Typical: 1–3 DaysWe talk through your goals, users, constraints and what success looks like in numbers.
- Discovery Call
- Goals & Success Metrics
- Risk Assessment
02Plan
Typical: 2–5 DaysI turn the conversation into a scoped plan with milestones, architecture and a clear estimate.
- Written Proposal
- Milestone Plan
- Technical Architecture
03Design
Typical: 1–3 WeeksUser flows, wireframes and interface design you can click through before development starts.
- User Flows
- Interactive Prototype
- Design System
04Develop
Typical: Project-DependentBuilt in short iterations with a live preview link and a demo of real progress every week.
- Weekly Demos
- Preview Deployments
- Progress Reports
05Test
Typical: Ongoing + 1 WeekAutomated tests, manual QA on real devices, accessibility checks and performance profiling.
- Automated Test Suite
- QA Report
- Performance Audit
06Launch
Typical: 1–3 DaysA planned, low-risk release with monitoring, backups and a rollback path ready.
- Production Deployment
- Monitoring Setup
- Handover Docs
07Improve
Typical: OngoingWe review real usage, fix what matters and plan the next round of improvements.
- Usage Review
- Support Window
- Improvement Roadmap
08Client Feedback
What Clients Say About Working Together
The quotes below are illustrative examples of the experience I aim to deliver. They will be replaced with attributed testimonials from real clients.
Illustrative Example
“We came in with a messy spreadsheet process and left with a system the whole operations team actually uses. Weekly demos meant there were no surprises at launch.”
01 / 04
09FAQ
Frequently Asked Questions
Cost, timelines, process and what happens after launch — the questions business owners ask before hiring a developer.
Business websites, custom web applications, SaaS products and MVPs, Android and iOS apps, AI agents and chatbots, AI integrations, business process automation, dashboards, and custom ERP, CRM and admin systems. The best fit is a project where software fixes a real problem — wasted hours, lost leads, unreliable data or a product idea that needs to launch.
10Contact
Let’s Fix What’s Slowing Your Business Down
Tell me what’s not working — a manual process, a missing app, software that’s holding you back. You’ll get an honest answer on whether I can fix it, how long it would take and what it would cost.
- 01Describe the ProblemA few lines is enough — no technical knowledge needed.
- 02Free Consultation CallA 30-minute call to understand your business and goals.
- 03Fixed-Price ProposalScope, milestones, timeline and cost in writing — no surprises.
- taaranjain16@gmail.com
- +91 89555 35949
- Message on WhatsApp (opens in a new tab)
- Replies Within 1 Business Day
- Jaipur, India · IST (UTC+5:30)