Fifteen years of software that stayed in production.
Noesis Infotech has been building custom software since 2011 — first as a one-room proprietorship in Thane taking on billing systems for local businesses, today as a small senior team running multi-tenant SaaS platforms, AI extraction pipelines and WhatsApp infrastructure for clients in India and the United Kingdom. This profile is the short version. Everything in it is either running on a public URL or drawn from the codebase it describes.
FB 164, High Street Corporate Center, Kapurbawdi, Thane, Maharashtra 400607, India
Services
Web platforms · Mobile applications · Cloud applications · AI automation · WhatsApp Business API
Products operated
WhatsBizAPI · WABAPI · PathoFlex · DocuRift
Markets served
India · United Kingdom
Contact
+91 81699 52766 · support@noesistech.com
Website
noesistech.com
We have shipped a lot of small things and a few very large ones
Across fifteen years the work ranges from a two-week billing utility for a materials yard to a 250,000-line laboratory platform with hardware integration. Both matter: the small projects taught us to finish, the large ones taught us to keep something alive for years after the invoice was paid.
Web and mobile, not one or the other
We have delivered a large number of web applications and mobile applications — Android and iOS, native and cross-platform, plus the automation infrastructure to test them at scale. Most engagements need both halves, and a team that owns both halves does not lose weeks in the seam between them.
We run our own products
WhatsBizAPI, WABAPI, PathoFlex and DocuRift are ours — built here, sold here, operated here, with real customers and real incidents. When we recommend an architecture, it is usually one we are already carrying a pager for.
// 02 — since 2011
How we got here.
2011
Founded in Thane
Noesis Infotech is established as a proprietorship firm. The first engagements are billing, inventory and back-office systems for local traders and distributors.
2012–2016
Business systems and the first ERPs
Billing and stock platforms for material suppliers, an ERP for a car servicing workshop, and a steady stream of web applications for small and mid-sized businesses across Thane and Mumbai.
2017–2020
Mobile and automation
Android and iOS application work, and automation infrastructure — including a parallel Android emulator farm used to exercise builds across device profiles without a rack of physical phones.
2021–2023
Multi-tenant SaaS
PathoFlex begins: a multi-tenant pathology laboratory platform with on-premise analyser integration. The WhatsApp Business API practice starts alongside it.
2024–2025
Our own products
WhatsBizAPI and WABAPI go to market as owned products. AI document extraction becomes a service line, with DocuRift and a fixed-price invoice-OCR platform delivered to a client with full IP transfer.
2026
AI engineering and international work
A salon platform for a London group, an agentic AI toolchain now used on every project, and continued product engineering on WhatsBizAPI, WABAPI and DocuRift.
// 03 — capabilities
What we do.
01
Web platforms
Dashboards, portals, marketplaces and multi-tenant SaaS on Next.js, React and TypeScript — typed end to end, server-rendered where it matters, fast on a mid-range Android phone.
Next.js
React
TypeScript
NestJS
Laravel
PostgreSQL
02
Mobile applications
Android and iOS from one well-factored codebase, with native modules where performance demands them. Offline-first data, push, deep links, payments and store submission handled end to end.
React Native
Flutter
Offline-first
Push
Store release
03
Scalable cloud applications
Containerised services, queues and workers, read replicas, autoscaling, structured logs and dashboards — with a cost model you can read on one page.
Docker
Queues & workers
Autoscaling
Observability
CI/CD
04
AI automation
Document extraction, retrieval-augmented answering, classification and multi-step agents wired into the systems you already run. Human-in-the-loop by default, evaluated against your real data.
LLM agents
RAG
Document AI
Evals
Human-in-the-loop
05
WhatsApp Business API
Official Meta Cloud API onboarding, number and display-name verification, template strategy that gets approved, campaign delivery, chatbots and two-way CRM sync.
Meta Cloud API
Templates
Campaigns
Chatbots
CRM sync
// 04 — selected work
Projects, oldest first.
Since 2011 we have delivered a large number of web and mobile applications — some a few weeks long, some running for years and still under our care. A representative selection follows, oldest first. Technical detail is taken from the systems themselves.
Trading & distribution · Billing & inventory
Billing system for local material suppliers
Building-material suppliers, Thane & Mumbai
One of our earliest production systems, and the one that taught us how unforgiving day-to-day billing is. Built for suppliers of construction material, where the yard runs on delivery challans and the office runs on credit: item and rate masters with unit conversion, the quotation → challan → tax invoice chain, party ledgers with outstanding and ageing, receipts and part-payments, purchase and stock movement, and day-book and outstanding reports the owner actually reads every evening. Print formats were matched to pre-printed stationery, because that is what the counter used.
Billing & invoicing
Stock
Party ledgers
Outstanding & ageing
Print formats
Automotive after-sales · Workshop ERP
ERP for a car servicing company
Multi-bay car service workshop
A workshop ERP covering the vehicle from gate-in to gate-out: customer and vehicle master keyed on registration number with full service history, job cards with technician assignment and labour lines, spare parts issued against a job card so inventory and billing cannot disagree, estimate → customer approval → invoice, periodic and odometer-based service reminders, package and AMC tracking, and reports on bay utilisation and technician productivity. The lesson from this project — that an asset, its custody and its service history belong in one record — is visible in every fleet module we have built since.
Job cards
Spares inventory
Estimates & approvals
Service reminders
AMC
Mobile QA · Automation infrastructure
Android emulator automation and scaling
Internal platform, used on client mobile work
Testing an Android build properly means running it on many device profiles, and a rack of physical phones is neither cheap nor reproducible. We built an emulator farm instead: programmatic AVD provisioning, many instances orchestrated in parallel with per-instance isolation and snapshot resets, scripted UI flows, and artefact capture — logcat, screenshots and video — for every run. The interesting engineering was in scaling: emulators are slow and flaky in bulk, so the work was host-level resource tuning, queueing and retry policy until a full matrix could finish unattended and produce the same answer twice.
Built for Nakoda Diagnostics · operated as a product
Our largest system: a multi-tenant laboratory platform that carries a sample from patient registration through collection, result entry and pathologist authorisation to a signed, styled report — across seven distinct staff roles and a database partitioned per laboratory. It also does the commercial half: price lists, packages and profiles, doctor and collection-centre commissions with settlement, outsourced work, expenses, receipts, and revenue and test-wise analytics. A companion Windows service, the PathoFlex Machine Connector, speaks ASTM E1381/E1394 to hematology analysers on the lab's own network, queues results to disk and survives an internet outage without losing a single one.
A full WhatsApp Business API platform on Meta's Cloud API: campaign broadcasting to segmented audiences, a multi-agent shared inbox, a no-code chatbot builder with an AI knowledge base, lead capture from click-to-WhatsApp ads with a captured → engaged → converted funnel, drip sequences, webhook relay into any CRM, credits and billing, and an affiliate programme. It supports Meta's coexistence mode, so a business keeps using the ordinary WhatsApp app on the very same number that the API is driving. Multi-tenant from the first migration.
Document data extraction as a metered API and web application: upload invoices, contracts, receipts or forms and get structured records back. Several OCR and vision-language engines sit behind one interface so a document type can be routed to whichever model actually reads it best, with confidence thresholds deciding what goes straight through and what a human sees. Organisations, API keys, prepaid credits, webhook delivery with retries, an audit log and an admin console for the operator side.
Salon group management end to end: multi-stylist scheduling on a resource timeline, packages, gift cards and loyalty, card and Apple Pay checkout, PDF invoicing, and an AI voice assistant that answers the phone and takes bookings.
Next.js 16
Supabase
Voice AI
Invoice OCR & review platform — Advaisys LLP
Fixed-price build with full IP transfer, self-hosted on the client's own hardware: PDF invoices ingested by API, extracted by a multi-model pipeline, routed by confidence to a human reviewer or straight to an HMAC-signed webhook.
Fastify
PostgreSQL
Document AI
Self-hosted
Freight documentation extraction
Bills of lading turned into structured shipment records where fidelity beats cleverness: a printed gross weight of 18,240.500 survives as exactly that, and container numbers are validated against their ISO 6346 check digit.
A self-serve sibling to WhatsBizAPI for lower or bursty volumes: no subscription, prepaid credits, campaigns from the business's own number.
Next.js
Drizzle
PostgreSQL
ReviewBot, FinSharp, ETHICS Car Rentals and others
Review automation, an investment agent-and-commission platform, and a corporate car rental lead system — a sample of the smaller web applications running under our maintenance today.
Next.js
PostgreSQL
Flask
// 05 — how we work
No six-week silence.
01
Scope
We map the problem, the constraints and the blast radius before writing code. You get a written scope with testable acceptance criteria — not a vague estimate.
02
Design & architect
Data model, contracts and interfaces first. Decisions get recorded, so the third developer to touch this understands why it was built that way.
03
Build in slices
Working software every week, on a URL you can open on your phone. You steer while it is still cheap to steer.
04
Ship & operate
Deployment, monitoring and handover docs. We stay on through the first stretch and leave you something you can run without us.
Spec first, then code
Non-trivial work starts as a short written spec with acceptance criteria a client can read and disagree with. Architecture decisions are recorded next to the code.
Tests where they earn their keep
Typecheck and affected-test runs gate every change; end-to-end tests cover the flows that would cost money if they broke. We do not chase a coverage number.
AI-assisted, human-reviewed
We use agentic tooling daily — it is why a small team ships at this rate — under review gates that force a search of the existing code before anything is edited.
Operated, not abandoned
PM2, reverse proxies, TLS, backups, monitoring and a documented deploy script per project. Handover includes the runbook, not just the repository.
// 06 — technology
What we build with.
01
Front end
Next.js
React
TypeScript
Tailwind
shadcn/ui
Livewire
02
Back end
NestJS
Fastify
Laravel
Node.js
PHP
Python
03
Data
PostgreSQL
MySQL
Redis
Drizzle
TypeORM
GraphQL
04
Mobile
React Native
Expo
Flutter
Android SDK
Electron
05
AI
OpenAI
Anthropic
Mistral OCR
Qwen-VL
RAG
Agent tooling
06
Infrastructure
Docker
PM2
Apache / Nginx
Let's Encrypt
S3-compatible storage
BullMQ
// 07 — engagement
How we contract.
Fixed-scope project
A written scope with testable acceptance criteria, milestone billing, and a fixed price that only moves through written change control. Best when the outcome is well understood.
Monthly retainer
A standing allocation of engineering time for continuous product work, with a rolling backlog and a demo every week. Best for products that keep evolving.
Dedicated pod
Named engineers embedded with your team, your tooling and your standups. Best when you have the direction and need capacity that does not need onboarding twice.
Pricing
Quoted in INR for Indian clients; USD, GBP, AED or OMR for international engagements.
Payment
Milestone invoices, typically 20% mobilisation and the balance against delivered milestones, net 30. Bank transfer (TT); retention of 5–10% on request.
Contracts
NDA before scoping if you prefer. Fixed-scope work carries a written specification annexed to the contract.
Intellectual property
All source code, designs and documentation assign to the client on final payment. We retain only generic internal components not specific to the client.
Warranty & support
Defect warranty after each release, then an optional annual maintenance contract covering fixes, statutory or platform updates and a defined response time.
Working hours
Based in India (IST, UTC+5:30). Overlap hours are agreed up front — the UK and most of Europe are comfortably reachable.
// 08 — references
Judge us on what is running.
Live systems are the reference we prefer to be judged on. Every product URL in this profile is a running system, and case studies with technical detail are published on our website. Client references are available on request.