March Code
Industry

Custom Online Store and Marketplace Development

Custom online stores, niche marketplaces and B2B portals: catalog, customer accounts, payments, ERP and marketplace sync. First stage from $5,900.

First step: syncing stock and orders, from $4,900 in 3–4 weeks.

Key industry metric

Stores on site builders lose

15-30%

of conversion once they grow past 1,000 orders a day

Market data: why we took on this niche
What to know about E-commerce

E-commerce keeps growing in the US and Europe, and big marketplaces like Amazon take a large share of it, yet niche marketplaces and D2C brands keep winning customers of their own. Many stores still run on site builders that buckle as they grow: a catalog of 10,000+ products drags, filters break, and the mobile version converts 2–3 times worse than desktop.

We build e-commerce platforms that scale: headless architecture (separate frontend and backend), native mobile apps, AI recommendations that raise the average order, and omnichannel integrations with marketplaces (Amazon, eBay, Etsy) and your ERP or accounting system. We work with online stores, D2C brands, niche marketplaces and B2B platforms.

A typical project, a mobile app for an online store, launches in 3–5 months. ROI reaches 300–600% in the first year through higher mobile conversion and a bigger average order.

Context

Where the market stands

Size, digital maturity, trends and regulation: the backdrop for your business

Market size

E-commerce keeps taking a bigger share of retail in both the US and Europe. Large marketplaces account for much of online sales, while niche marketplaces, D2C brands and B2B portals are where custom development pays off.

Digital maturity

High, yet many stores still run on site builders that can't keep up past 1,000+ orders a day. Most stores don't have an app of their own

lowmediumhigh
Trends
  • Mobile apps for stores: conversion 2–3 times higher than on the mobile site
  • Niche marketplaces: building materials, auto parts, farm products
  • AI personalization: recommendations, dynamic pricing, predictive search
  • Headless architecture: one backend for the website, the app and marketplaces
  • Omnichannel: one inventory and one price list for online and offline
Regulation
  • PCI DSS for card payments
  • GDPR in Europe and US state privacy laws (such as the CCPA) for customer data
  • Product safety and labeling rules for regulated categories, such as the EU General Product Safety Regulation
  • Distance selling rules: the 14-day right of withdrawal in the EU, the FTC rule on shipping times for online orders in the US
  • Sales tax and VAT on online sales: US state sales tax rules, the EU VAT One-Stop Shop
Sound familiar?

Industry pains we take away

If you recognize even one, we have something to talk about.

01

Your site builder can't keep up with growth

The store has grown to 500+ orders a day. The site builder drags: a 10,000-product catalog takes 8 seconds to load, filters break, the mobile version falls apart. Every extra second of loading costs 7% of conversions. For a store with 100,000 visits a month and a 2% conversion rate, slow pages add up to a serious monthly revenue loss.
What we do

A custom platform on a headless architecture: a server-rendered frontend (Next.js), Elasticsearch for search, pages loading in under 2 seconds

02

No mobile app, and you're underserving 75% of your traffic

75% of the store's traffic comes from smartphones. The mobile site converts 2–3 times worse than desktop. Push notifications from a PWA get ignored. Customers install competitors' apps because they're “more convenient.” An app could grow revenue by 30–50%.
What we do

A native or cross-platform (Flutter) app: smart search, push notifications, Apple Pay and Google Pay

03

Manual stock sync between channels

The store sells on its own site, on Amazon and eBay, and in a physical shop. Stock is updated by hand in each system. The result: overselling (selling items you don't have), canceled orders and marketplace penalties every month. A lower seller rating means less visibility and less revenue.
What we do

An omnichannel platform: one catalog, one stock count, automatic sync via API

04

No personalization, so the average order stays small

Every shopper sees the same home page, the same products and the same recommendations (or none at all). Cross-selling and upselling are done by hand. The average order doesn't grow even as traffic does. The missed growth in average order value is 15–30%. For a store with 10,000 orders a month, that adds up fast.
What we do

AI recommendations: personal picks, predictive search, dynamic promo codes by segment

Our approach

E-commerce: what we implement

Key areas with a clear budget, timeline and outcome. The catalog below breaks down each one.

Mobile app for an online store

A catalog with smart search and filters, a cart, online payments (Apple Pay, Google Pay, Stripe or your bank's gateway), push notifications about discounts and order status, a loyalty program, and a barcode scanner. An admin panel to manage content and promotions.
Mobile conversion +150%Repeat purchases +40%Average order value +15%
Budget
from $16,900
Timeline
from 12 weeks
More about the service

Niche marketplace development

A marketplace for your category: seller and buyer accounts, product moderation, split payments, ratings and reviews, dispute handling, delivery integration. You earn a 10–20% commission on every deal.
Time to market: 4-6 monthsGMV x5 in the first year10-20% commission on every deal
Budget
from $9,900
Timeline
from 16 weeks
More about the service

AI recommendation engine

Personal “frequently bought together” recommendations, predictive search, dynamic pricing, and customer segmentation for email and push marketing. The ML model trains on your store's data and keeps improving.
Average order value +15-25%Conversion +20%Recommendations drive 15-30% of revenue
Budget
from $9,900
Timeline
from 8 weeks
More about the service

Omnichannel integration platform

One hub that syncs catalog, stock, prices and orders across your website, app, marketplaces (Amazon, eBay, Etsy) and your ERP or accounting system. Orders from every channel are processed automatically in a single interface.
Overselling -95%Order processing time -70%Manual operations -80%
Budget
from $14,900
Timeline
from 8 weeks
More about the service
70%

Orders dealers place themselves (our SHATE-M case)

Into1C

Orders land in the client's ERP with no manual entry

+15-30%

Average order value with personalization

3-4weeks

To stock and order integration

What we've already built in E-commerce

Real projects in production, with numbers you can verify.

70%

ERP and B2B portal for an auto parts distributor

Share of orders dealers place themselves. 1C stayed at the core, with a portal and a 500,000+ item catalog on top.

Project breakdown

50,000+

Telegram loyalty service with gamification

Members in 6 months without paid installs, just QR codes at checkouts and on receipts.

Project breakdown

What happens in the first two weeks

You can test us for free, before you pay a cent. It works the same way for any task in E-commerce.

  1. Day 0

    A 30-minute conversation

    We go through the process that hurts most and name the budget range out loud. No money changes hands at this step.

    1
  2. Days 1–5

    A working demo on your task

    Not a slide deck: a clickable prototype or a live bot you can open on your phone and show your team. If you don't like it, we part ways and you keep the materials.

    2
  3. Day 2 after the brief

    A fixed quote by stage

    Fixed in the contract. Not “approximately” and not “we'll clarify as we go”.

    3
  4. Weeks 2–4

    The first paid stage

    You pay for a specific result. The next stage doesn't start until you've accepted the previous one.

    4
  • Demo before any contract or prepayment
  • The quote is fixed in the contract
  • Payment in stages, not all at once
  • Code in your repository from day one
  • 3 months of warranty after launch
  • We'll tell you when you don't need it
FAQ

Frequently asked questions

The essentials about working in this industry, short and to the point

We don't sell a “whole project” up front. We sell steps, and you can stop at any of them. Each one gives you a working tool.

  • A demo on your task: free, 3–5 days. A clickable prototype or a live bot before any contract or prepayment.
  • A first tool: a chatbot built around your scenario, from $1,900 in 2 weeks.
  • A chatbot for your online store with AI answers and CRM integration: $3,500–8,500.
  • A CRM for your online store: from $14,900.
  • Video analytics for retail: from $12,900.

The full setup with every module and integration adds up to $35–90K, but not in one payment: in 2–4 week stages, each paid for a specific result. The quote is fixed in the contract within 24 hours of the call.

For comparison: one in-house developer costs from $10,000/month with taxes, and you still have to find one.

Ready to automate your online store?

Name one process that currently runs on people and paper. In 30 minutes we'll go through it, in 2 days you'll get a fixed quote, and in 3–5 days a working demo on your task. Free, before any contract or prepayment.

First step: syncing stock and orders, from $4,900 in 3–4 weeks.

A clickable customer portal prototype in 5 days, free

Customer portal from $4,900, prototype free

Prices are indicative and not a binding offer.

We build an interactive prototype of up to 5 key screens of your customer account, portal or dashboard. Judge the solution before any contract or prepayment.

Step 1 of 2 · Task

30 minutes · free · no obligation