Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get custom Web application with AI optional integrations.

ErrSol D.Status: Offline
ErrSol D.
Preview imagePreview image

Let a pro handle the details

Buy Custom Website Programming services from ErrSol, priced and ready to go.
ErrSol D.Status: Offline
ErrSol D.
Preview imagePreview image

Let a pro handle the details

Buy Custom Website Programming services from ErrSol, priced and ready to go.

Project details

I build full-stack web apps, SaaS MVPs, and landing pages end to end. React + Node + Postgres, Supabase, Vite, Tailwind, shadcn/ui. Production-ready, mobile-responsive, source code in your GitHub on day one.

I also handle:
 • Custom admin panels — role-based access, audit logs, bulk import/export
 • AI integrations — OpenAI, Claude, Gemini — chat, document extraction, classification, smart search
 • Payment integrations — Stripe, Razorpay, PayPal — checkout, subscriptions, webhooks, invoicing
 • Workflow automation — n8n, Make, Zapier, custom Python
 • Marketing design — landing pages, brand assets, email templates, social creatives
 • Migrations from Airtable, Google Sheets, Notion, or WordPress to a proper app

Real client work shipped across six countries — property portals, freight platforms, civic systems in Hindi with SMS, fitness apps with leaderboards, healthcare tools (one acquired by the client). Opinionated about React + Node + Postgres because it ships fast and hands off cleanly.

You own everything — code, hosting accounts, brand assets — from day one. No lock-in.
Programming Languages
PHP, JavaScript, TypeScript
Coding Expertise
Cross Browser & Device Compatibility, Security, Design
What's included
Service Tiers Starter
$300
Standard
$500
Advanced
$2,600
Delivery Time 5 days 7 days 21 days
Number of Revisions
12Unlimited
Number of Pages
1510
Design Customization
-
Content Upload
Responsive Design
-
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$70 - $300
Additional Revision
+$40
Additional Page
+$70
Design Customization
+$70
Responsive Design
+$200
ErrSol D.Status: Offline

About ErrSol

ErrSol D.Status: Offline
Professional Web, Mobile and Desktop application Developer
Rajkot, India - 12:38 am local time
I run Errsol Technologies LLP — a software and security company founded in India in 2019. I personally take on web development, web apps, AI integrations, payment integrations (Stripe, Razorpay, PayPal), and marketing design work, while our wider team handles application security, AI workflow automation, and admin panel builds. We work with clients who need something built properly, not pulled off a shelf. Our team has backgrounds in enterprise SaaS, Big 4 cybersecurity consulting, and academic security research. We've shipped work across India, the UK, the Bahamas, the USA, Germany, and Canada — including one tool that was acquired by the client. Alongside client work, we're also building our own SaaS products: VODP for vulnerability management and AnswerDeck for security questionnaire automation.

Steps for completing your project

After purchasing the project, send requirements so ErrSol can start the project.

Delivery time starts when ErrSol receives requirements from you.

ErrSol works on your project following the steps below.

Revisions may occur after the delivery date.

Discovery & Scope Lock

I review your requirements, ask any clarifying questions, and confirm the scope doc with deliverables and timeline before any build starts.

Design & Architecture

Wireframes, database schema, tech stack, and integration list shared for your sign-off.

Review the work, release payment, and leave feedback to ErrSol.