I'm Sandeep Kumar, a freelance full-stack developer in Mumbai. I build business websites, e-commerce stores, AI chatbots, IoT dashboards and SCADA software for government, industrial and private clients — and keep them running in production.
Government water schemes, industrial plants, companies and small businesses. Every project below was designed, built and deployed by me.
Monitoring, alerts, AI assistant, reports, tickets and online subscriptions for organisations, vendors and end users.
132-page SEO website with 600+ products, an animated product story and a 24×7 AI visitor assistant.
Intake well, treatment plant and overhead-tank monitoring on satellite maps for a city water-supply scheme.
Live SCADA view with remote pump ON/OFF over MQTT for village tubewell schemes.
Legacy HMI replaced by an interactive 3D digital twin with AI automation and live device data.
Meter data sent automatically to the state government portal over an encrypted, authenticated API.
Client data delivered to government servers on schedule — API push, encrypted calls and ZIP/CSV uploads, with retries and logs.
Remote AC control and monitoring per device over MQTT, from any browser.
HVAC, lighting, energy and occupancy across every floor in a 3D model with AI suggestions.
Generation, losses and revenue optimisation with a 3D plant view and AI insights.
Mobile-first website for pilgrimage packages, bookings and enquiries.
See exactly how a client's product works in production — from login and live devices to AI insights, alerts, payments and support tickets. Jump to any chapter.
The production architecture I designed and deploy — real-time, multi-tenant, AI-enabled.
Short walkthroughs of individual modules I built for this client.
A chat assistant inside the platform. Users ask in English, Hindi or Hinglish — device status, water used, alerts, subscriptions or how-to — and get answers from their own data in seconds.
An AI page that turns raw meter data into decisions: when a site will cross its yearly groundwater (NOC) limit, night-flow leak detection, meter health checks, 7-day forecasts and a daily email brief.
Checks every device every few minutes and emails the right people the moment a meter goes offline or sends bad readings — with auto-resolve, no spam, health reports and planned-off windows.
Every problem in one place: raise a ticket by topic and urgency, attach photos or Excel, track Raised → Resolved, chat with support, live notifications and reopen if needed.
A fast, SEO-first company website with an animated product story, 600+ products and a 24×7 AI assistant for visitors.
Many of my clients must report their meter data to government and partner servers. I build the pipelines that send it securely, on schedule, with no manual uploads.
Encrypted payloads, RSA keys, token and multi-step logins — exactly as each government server requires.
JSON APIs, CSV files or ZIP bundles — data is mapped to each portal's own format automatically.
Queued delivery with automatic retries and backoff. If a server is down, data is sent when it is back.
Per-site schedules — every few minutes, hourly or daily — without anyone logging in.
Every push is logged. If delivery fails, the team gets an email before the client even notices.
The same engine can feed your ERP, CRM, billing or any partner API and webhook.
From a shop or clinic website to a full SaaS or IoT platform. Every site is fast, mobile-first, SEO-ready — and can include AI. (Sample designs.)
Products, cart, payments & order tracking
Menu, table booking & online orders
Listings, filters, map & enquiry leads
Doctors, appointments & reports
Courses, admissions & student portal
Packages, itineraries & bookings
Plans, trainers & class schedule
Company profile, products & careers
Conversion-focused, pricing & signup
Users, roles, charts & exports
Live devices, alerts, maps & 3D
Chat on your data & automation
Business websites that load fast, rank on Google and turn visitors into enquiries.
🛍️Online stores with cart, UPI/card payments, order tracking and an admin panel.
🤖AI chat for your website or app that answers in English, Hindi & Hinglish and books enquiries.
📡Real-time dashboards for meters, sensors and machines with alerts, reports and AI.
🏭Browser-based SCADA for water schemes, pumps, tanks and plants — with remote control and 3D.
⚙️Custom web apps, admin panels, CRMs and SaaS products with logins, roles and payments.
🔗Automatic, secure data forwarding to government portals, ERPs, CRMs and partner APIs.
🛡️Hosting, SSL, backups, updates, speed and security — handled for you every month.
The same AI features running in my live products — ready to add to yours.
A chatbot trained on your business — answers customers 24/7 in English, Hindi or Hinglish.
● Live in productionTurn your data into predictions, trends and plain-language summaries.
● Live in productionDetect problems automatically and notify the right person by email, SMS or WhatsApp.
● Live in productionDaily briefs and monthly PDF reports — generated and emailed automatically.
● Live in productionLet users speak instead of type, in the language they prefer.
● Live in productionTicketing, routing and live chat so no customer request gets lost.
● Live in productionEvery project gets a fixed quote after a free call — no hidden costs.
We talk about your goals. You get a clear plan and fixed quote within 48 hours.
You see and approve the design before development starts.
Weekly updates with a live preview link you can open anytime.
Deployed, tested and supported — I stay available after launch.
Still unsure? Ask my AI assistant — bottom right.
Business websites, e-commerce stores, restaurant, clinic, school, real-estate and travel sites, SaaS products, admin dashboards, IoT portals and AI chatbots.
A business website usually takes 1–2 weeks. Web apps and dashboards take 3–8 weeks depending on features. You get an exact timeline after our first call.
It depends on pages and features. After a short free call I share a fixed quote with milestones — no hidden costs.
Yes — AI chat assistants, smart search, auto-reports and alerts can be added to most existing websites, including WordPress and custom sites.
Yes. I deploy on reliable cloud hosting, set up domain, SSL and email, and offer monthly maintenance plans.
Yes. I build integrations that send data to government servers, ERPs, CRMs and partner APIs automatically — with encryption, retries and logs.
Yes. I work with clients across Mumbai, Thane, Navi Mumbai, Pune, the rest of India and abroad — fully remote, in your timezone.
Tell me what you need — I reply within 24 hours with ideas and a quote.