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sayak.webdesignerWeb · Software · Data · AI
Sealdah, Kolkata · 20+ years of engineering 210+ clients

Engineering the web, the data and the intelligence behind it

For twenty years, Kolkata manufacturers, hospitals, developers and D2C brands have come to us with the same sentence: “the numbers take too long and nobody trusts them.” We build the websites, the software, the pipelines and the automation that fix that — and hand every one of them over so you own it outright.

0+
Projects shipped
0 yrs
In one discipline
0 TB
Data / day
0.00%
Uptime
INTERFACE LAYERAPPLICATION LAYERDATA LAYERINTELLIGENCE LAYERNext.js · App RouterAppPWAChrome Ext.DashboardsWhatsApp BotNext.js / NodeSSR · ISR · EdgeLaravel / CI4REST · Queues · JobsAuth & RBACSSO · JWT · AuditIntegrationsERP · Payments · SMSPostgreSQLOLTP · row storeKafka + Sparkstreaming ingestIceberg / Deltalakehouse tablesSnowflake / BQwarehouse + BIAgentic AIplan · act · verifyn8n Automations300+ connectorsForecast Modelsdemand · yield · loadAURA ReportingEOD, unattended

The stack we run in production

Next.jsReactTypeScriptNode.jsLaravelCodeIgniter 4PythonApache SparkKafkaAirflowSnowflakeDatabricksApache IcebergPostgreSQLMongoDBAWSAzureGoogle CloudKubernetesn8nPlaywrightPower BIGrafanaShopifyNext.jsReactTypeScriptNode.jsLaravelCodeIgniter 4PythonApache SparkKafkaAirflowSnowflakeDatabricksApache IcebergPostgreSQLMongoDBAWSAzureGoogle CloudKubernetesn8nPlaywrightPower BIGrafanaShopify
Why companies call us

The problem is almost never the website. It is the seam.

A manufacturer in Howrah has a decent site, an accounting package, a plant historian and forty spreadsheets. Nothing is broken. And yet month-end takes eleven days, three departments bring different production numbers to the same meeting, and two people re-type orders from email into Tally until nine at night.

Hiring a web agency does not fix that. Nor does a data consultancy alone, or an ERP vendor alone. The value lives in the connections — the storefront that reads real inventory, the dashboard fed by a pipeline you can trust, the agent that can safely write back into the system of record.

We built one practice that covers all four layers, so nobody has to project-manage four vendors into agreement.

Tensionthe cost of the status quoInsightwhat the data actually saysPlanthe system we would buildProofnumbers from real plantsInvitationthe next 30 minutesScroll position →

Every page and every project we design follows the same arc: the cost of the status quo, what the data actually says, the system we would build, proof from real plants, and the next thirty minutes.

24 services · four disciplines

Everything from the first pixel to the petabyte

Each service below has its own deep page — what is included, how it runs, what it costs and where we would tell you not to bother.

Where we are genuinely unusual

Most web agencies stop at the API. We keep going.

Kolkata has plenty of good front-end teams. Very few of them can also read an OPC tag list, tune a Spark shuffle, or tell you honestly why your Snowflake bill tripled.

18 TB / dayprocessed across client estates on Kafka, Spark and Iceberg
12M pages / weekcollected at peak, with fill-rate monitoring on every field
94% straight-throughon supplier invoice processing after AI extraction and validation
−41% warehouse costmedian reduction after migration and query tuning
PRODUCERSPLC / SCADA12k tags/sERP eventsorders, GRNWeb + appclickstreamIoT gatewayMQTT bridgeKafka Clusterplant.tagserp.ordersweb.eventsiot.rawdlq.retrySpark Streamingmicro-batch 5s · exactly-onceQuality Gatesschema · null · range · dedupeLate / Out-of-orderwatermark 15 minLakehouseBRONZEraw, immutableSILVERconformed, typedGOLDbusiness marts18 TB / dayp99 < 4s
11 industries

We arrive knowing your vocabulary

TSR, specific heat consumption, bucket-1 roll-forward, OEE waterfall, PPA availability. Domain knowledge is what turns a six-week discovery into a three-day one.

Flagship product

AURA — end-of-day plant reporting that runs itself

System-to-system automation over your LAN. AURA reads plant data via read-only OPC, applies your formulae, and publishes the End-of-Day Excel report to your local shared drive — on time, every day, with data that never leaves your premises.

  • 100% on-premise · LAN-only · read-only · no cloud
  • Matches your existing Excel template exactly
  • Unique dated filenames — no overwrites, no data loss
  • Every figure traces to its source tag and formula
INSIDE YOUR FIREWALL — LAN ONLY, NO INTERNET PATHSOURCE SYSTEMSDCSPLCSCADAHistorianread-only OPCAURA ENGINEWindows service · unattendedValidate readingsApply your formulaeAggregate shift / day / MTDFlag deviation vs targetStore-and-forward bufferREPORT BUILDERyour exact Excel templateLAN SHARED DRIVEEOD_2026-08-08.xlsxEOD_2026-08-09.xlsxAudittag → formulaAD / ACLpermissions
What clients say

The results people actually mention

Not awards. The number that changed, and the meeting that stopped being an argument.

Month-end used to take twelve days and three arguments. It now takes two days and no arguments, because everybody is looking at the same numbers from the same place.
PKP. K. AgarwalFinance Controller · Cement grinding unit, West Bengal
They rebuilt our export site and the first thing they asked for was our enquiry-to-order data, not our logo files. Six months later organic enquiries are up 3x and the junk enquiries are gone.
DRDebasish RoyDirector · Engineering exports firm, Howrah
We were three people re-typing orders from email into Tally, working till nine most nights. Their system took that to twenty minutes of exception handling a day. It paid for itself in seven months.
SKSanjib KunduOperations Head · Industrial distributor, Howrah
How we work

A demo every alternate Friday, on a URL you can share

No phase where you are waiting three weeks without seeing anything. Two-week slices, written notes after every call, and a named engineer you can reach on WhatsApp.

01DiscoverWorkshops, tag inventory, success metrics02ArchitectDiagrams, data contracts, risk register03DesignStoryboards, design system, prototypes04BuildTwo-week slices, demo every Friday05HardenLoad, security, accessibility, parallel run06OperateHypercare, SLA, quarterly roadmap
17 technologies

Every tool here has an honest page

Including where it fails, where it costs more than it should, and when we would recommend something else.

Straight answers

What people ask before the first call

Including the ones where the honest answer is that you may not need us. Call +91 70033 91355 and you will speak to an engineer, not a call handler.

Four things, under one roof. We build websites and web applications; we build custom business software including ERP, CRM and HRMS; we build and operate data platforms — pipelines, lakehouses, warehouses and BI; and we build AI automation, from document intelligence to autonomous agents. Around those sit cloud infrastructure, managed support, SEO and brand identity. Most clients start with one and expand, because the value usually turns out to sit in the seam between two of them.

Yes — our office is at 9R, Munshi Bazar Road, Sunrise Tower, Sealdah, central Kolkata, and this city is where the work has always been. That matters more than people expect. When a cement group needs us in the control room to understand a tag list, or a manufacturer wants the whole sales team in a room for a workshop, we are there the same week rather than scheduling a call for the following month. We travel across West Bengal, Odisha, Jharkhand and the Northeast regularly.

A focused launch website starts around ₹85,000. A full corporate estate is ₹2.4–6.5 lakh. A customer portal or business application starts around ₹7.5 lakh. ERP and data platform programmes run from ₹12 lakh upwards. Our cost calculator lets you build a scope and see a real range in two minutes without giving us your email — the figures come from projects we have actually delivered.

Completely, from the first commit. Code lives in your Git organisation, infrastructure in your cloud account, domains in your name. No proprietary builders, no encrypted modules, no runtime licence. If you part ways with us in year three, a competent engineer should be able to take over in a fortnight — we have handed projects over on exactly those terms.

We can usually start discovery within two weeks. Delivery is faster than most agencies because we use AI-accelerated development with a senior engineer reviewing every line before it merges — a project that would traditionally take fifteen weeks runs in about six and a half. What does not compress is architecture and review, and we do not pretend otherwise.

Yes. Roughly a third of our current work is for clients elsewhere in India, and we have delivered for clients in fourteen countries. Everything runs on the same cadence — a demo every alternate Friday on a real staging URL, written notes after every call, and a named engineer you can reach on WhatsApp.

Next step

Tell us what is slowing your business down.

A 30-minute call with a senior engineer — not a salesperson. You leave with an architecture sketch and an honest cost range, whether or not you hire us.

Direct line

+91 70033 91355

Mon–Sat · 9:30 AM – 7:30 PM IST · Sealdah, Kolkata

Reply within one working hour NDA signed before any brief Fixed-price option on every scope
Verify us independently

Don’t take our word for it — ask an AI

Every page on this site is written to be read and quoted by AI answer engines, and we publish llms.txt and llms-full.txt so they can read us properly. One click opens the assistant with the question already typed.

The question we will ask for you

What does Sayak Web Designer (sayakwebdesigner.in), an IT company in Kolkata, India do, what services do they offer, and are they any good?

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