Let’s Engineer Your Next Competitive Advantage.
Skip the discovery theatre. Brief a senior architect directly, pressure-test the scope in minutes, and leave with a fixed-cost roadmap — not another follow-up email chain.
Live Response Clock
Online4hmax response
2h 41m
Avg. first reply
96%
Scope acceptance
Sub 4-Hour Response
Senior architect triage, not a sales script
100% Zero-Obligation NDA
Mutual NDA signed before discovery
Fixed-Cost or Sprint Pricing
Milestones, not billable surprises
Direct WhatsApp / Slack
Talk to the builder, not a queue
Project Estimator // Live Scope Engine
Calibrate the scope. Get an architectural quote.
Select the capabilities you need and watch the likely squad, deployment cadence, and investment bracket update in real time. Then send the brief straight to a senior architect.
Step 01
Scope Calibration
Multi-select the capabilities in play. The estimator recalculates the squad and kickoff path instantly.
Service Capability Selection
02 selectedTarget Timeline
Anticipated Investment Bracket
Live Dynamic Summary
4 rolesEstimated Squad Composition
Deployment & Kickoff
3-4 Weeks · Kickoff within 72 hours · weekly demos
Investment Signal
$10k – $20k · 2 capabilities
Step 02
Direct Engineer Intake
Book an architectural discovery. Your brief routes to a senior engineer, not an inbox queue.
Prefilled for Custom Web Platforms & Product Engineering
Zero Wait Time
Direct Instant Contact Channels
Choose the channel that matches your urgency. Every route lands with someone who can actually architect the build.
WhatsApp VIP Engineering Hotline
+880 9611-873430
Live now · average reply under 3 minutes
Architectural Desk Email
hello@growbigit.com
Attach a PRD, deck, or loom link · 4-hour SLA
Dhaka & Remote Global Hub
UTC · US / EU sync shifts
Dhaka HQ · overlap windows for EST and CET teams
From Brief to Sprint Zero // 48-Hour Path
What Happens Next?
A deliberately short path from first contact to shipped code. Four steps, no procurement maze.
Intake Review
4-hour audit
A senior architect audits your brief, current stack, and growth constraints. You get a written feasibility read before anyone books a call.
Discovery Session
30-min Google Meet
We pressure-test the highest-risk assumptions, align on the commercial outcome, and map the shortest path to a shippable sprint.
Architecture & Fixed Quote
Milestone roadmap
You receive a system diagram, delivery milestones, squad composition, and a fixed-cost or sprint-based quote with no hidden line items.
Sprint Zero Kickoff
48-hour sync
We open a shared Slack or WhatsApp channel, lock the first sprint, and begin shipping. No procurement maze, no account-manager relay.
Architectural FAQ // No Sales Fog
Frequently Asked Questions
Straight answers on sprint speed, pricing models, IP, NDAs, and what happens after launch.
Still weighing the scope?
Send a two-line brief. We will reply with the first three risks.
Most engagements reach Sprint Zero within 48 hours of a signed scope. Your brief is reviewed by a senior architect inside four hours, the discovery session happens within one business day, and the first build sprint starts as soon as the fixed quote is approved.
Both, depending on the risk profile. Defined builds are quoted as fixed-cost milestones so your budget cannot drift. Open-ended product discovery or embedded retainer work runs as a sprint squad with a capped monthly capacity and weekly burn visibility.
You do. On final payment, all custom code, design files, infrastructure-as-code, and documentation transfer to your organisation. We only retain rights to our pre-existing internal frameworks, which are licensed to you royalty-free for the life of the product.
Yes. A mutual, zero-obligation NDA is available before the first technical call. Send the document you prefer or use our standard two-page agreement. We can also work under a lightweight one-way NDA if your legal team requires it.
Every launch includes a 30-day hypercare window with priority defect fixes and monitoring. After that, you can move to a monthly reliability retainer covering uptime response, security patching, backups, and a reserved block of iteration hours. Response SLAs start at four business hours for P1 incidents.