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Taslim Tareq
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Taslim Tareq · Rajshahi, Bangladesh

I run Amazon, Walmart and eBay stores for brands, and I build CRMs, ERPs and AI tools for businesses.

Since 2018, the client stores I've managed have sold more than $200 million combined. I work your hours: Monday to Friday, 9am to 6pm US Eastern.

I work Monday to Friday, 9am to 6pm US Eastern.

Marketplace management

I manage stores on Amazon, Walmart and eBay: product research and sourcing, listings, advertising, inventory and FBA or WFS operations. Since 2018, the client stores I've managed have sold more than $200 million combined. Here are two of them, with the receipts and the dashboards they come from.

Amazon

26% more revenue from the same number of units

Amazon US

Client brand · Seller Central


Ordered product sales

Mar to Apr 2026, 372 units
$128,456.09
Same dates 2025, 370 units
$101,871.79
Average per unit
$345, was $275

Starting point

Flat sales, high advertising cost (ACOS), low visibility

What I did

  • Rebuilt the listings and keywords
  • Restructured the PPC campaigns
  • Raised prices

Revenue, same units+26.1%

TT-AMZ-2026

Amazon Seller Central sales snapshot: 372 units and $128,456.09 in ordered product sales, compared with 370 units and $101,871.79 for the same dates a year earlier
Seller Central sales snapshot, taken May 3, 2026. Teal is the selected period, red the same dates a year earlier.

Walmart

A new Walmart channel: from $0 to $109,024 in one quarter

Walmart Marketplace

Client brand, new to Walmart · Seller Center


Gross merchandise value after cancellations and refunds

Feb 1 to Apr 30, 2024 (fiscal Q1)
$109,024.14
Orders
4,025
Same dates 2023
$0, not on Walmart yet

Starting point

Sales depended on Amazon; Walmart and eBay were untapped

What I did

  • Onboarded the brand to Walmart and eBay
  • Set up WFS and listing syndication
  • Synced inventory

First quarter on Walmart$109,024.14

TT-WMT-2024

Walmart Seller Center overview for the quarter: $109,024.14 gross merchandise value, 4,127 units and 4,025 orders, with the previous year at zero
Walmart Seller Center overview for February to April 2024. Daily sales stop in mid-April because the stock sold out. Seller name and ID are redacted.

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Custom software

I design and build business systems end to end: CRMs, ERPs, AI tools and websites. Most are built to run on ordinary shared hosting.

Sparq Intelligence logo

AI platform · Private system · 2026

Sparq Intelligence

A lead-research platform that labels every AI finding by its evidence and drafts outreach for a salesperson to approve

  • 11 steps from business search to CRM follow-up
  • 3 evidence labels: observed, inferred, hypothesis
  • 512 test methods
  • Laravel
  • PHP
  • Claude API
  • MySQL
  • Alpine.js
  • GitHub Actions

Read the Sparq Intelligence case study

Easy Clean DMV logo

CRM and website · Private system · 2026

Easy Clean DMV

An office CRM and website for a cleaning company: leads, a price calculator, quotes with deposits, crew scheduling and invoicing

  • 6 slices delivered, from CRM core to reporting
  • 5 roles: owner, admin, office, finance, crew
  • 0 prices in the website's HTML or JavaScript
  • Next.js
  • React 19
  • TypeScript
  • Drizzle ORM
  • MySQL
  • Stripe

Read the Easy Clean DMV case study

SaaS platform · Private system · 2026

BusinessOS

A multi-tenant platform in Go for configurable ERP, POS and CRM, with one core and no per-industry forks

  • 27 platform modules built
  • 39 architecture decision records
  • 1,452 Go test functions
  • Go
  • PostgreSQL
  • Multi-tenancy
  • JSON Schema
  • REST API

Read the BusinessOS case study

Shuddho Bazar BMS logo

Business system · Private system · 2026

Shuddho Bazar BMS

A business management system for an organic food business: inventory, five order channels, partner finance, POS and WooCommerce sync

  • 7 phases delivered
  • 5 sales channels in one order pipeline
  • Laravel
  • Livewire
  • Alpine.js
  • Tailwind
  • MySQL
  • WooCommerce API

Read the Shuddho Bazar BMS case study

Client websites

  • zenviaaluxe.com storefront in English, with the product hero banner and shop navigation
    Zenvia Luxe logoZenvia Luxe

    An online jewelry store with a Filament admin and cash-on-delivery or mobile-money checkout

    zenviaaluxe.com

  • prominentagro.com homepage with the bilingual hero slider and inquiry and WhatsApp buttons
    Prominent Integrated Agro logoProminent Integrated Agro

    A corporate site in English and Bangla, with analytics that wait for consent and inquiry forms that save every lead

    prominentagro.com

  • greenfacilitysolutions.com.bd homepage with the hero and an audit request button
    Green Facility Solutions logoGreen Facility Solutions

    A corporate site for a facility-management company, with its content kept in two config files

    greenfacilitysolutions.com.bd

  • M Chicken & Waffle homepage with an open-now label, the headline Crispy chicken, fresh waffles, H Street NE, order buttons and a meal box with chicken and a waffle
    M Chicken & Waffle logoM Chicken & Waffle

    A restaurant site with pickup orders paid through Clover, a kitchen screen and a menu the owner edits in one file

  • Brainwave Technologies homepage with a dark hero for Amazon operations, custom software and digital marketing
    Brainwave Technologies logoBrainwave Technologies

    My agency's website, with database-driven content and an admin panel

Personal project

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What clients said

Expanding to Walmart & eBay felt overwhelming but Taslim handled the entire onboarding end-to-end. We hit $20k in new channel revenue within 45 days of going live. Absolutely worth it.
Abin Abraham, CEO, TEDs Trading Post
Walmart and eBay onboarding
Taslim’s impact was immediate. He optimized our Walmart account, improving visibility and sales almost overnight. His technical skills combined with a true understanding of the Walmart marketplace are exceptional.
Teresa Ingram, CEO, Capital Pointe LLC
Walmart account management
The web app was delivered on time, incredibly fast, and precisely what we needed to automate daily inventory updates. Eliminated weeks of manual work immediately.
Deji Abiodun, Serial Entrepreneur
Inventory web app
Transformative for our business. The combination of technical execution and strategic growth thinking is incredibly rare. Taslim over-delivered on every single metric we set.
Umair Baig, CEO, SparqWeb
sparqweb.com, its admin and Sparq Intelligence

About

I'm Taslim Tareq, co-founder of Brainwave Technologies in Rajshahi, Bangladesh.

For eight years I've run stores for brands on Amazon (FBA and FBM), Walmart (WFS) and eBay: private label launches, product sourcing and manufacturing coordination in China, listings, PPC and day-to-day store operations.

The software work grew out of that. I build the systems sellers and businesses run on: CRMs, ERPs, inventory tools and AI-assisted sales research, in Laravel, Astro, React and Go.

Co-founder ofBrainwave Technologies
Taslim Tareq

Book a 15-minute call

Pick a time. Tell me what you sell and where, or what you need built.

I work Monday to Friday, 9am to 6pm US Eastern.

Hours
Monday to Friday, 9am to 6pm US Eastern

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