Custom e-commerce development services, B2B and B2C

Move when the platform starts limiting the operation: B2B rules it cannot handle, integrations that depend on spreadsheets or retyping, or fees and apps that grow faster than your margin. If the catalog is simple and the rules are standard, staying on SaaS is the right call, and we tell you so in the first conversation, before you hire anything. There are also middle paths: keep the store and integrate it better, or migrate to an open-source platform.

It depends on four factors: the size and complexity of the catalog, the commercial rules (B2B, per-customer pricing), the number of integrations and the volume of data to migrate. That is why we do not publish a price list. A 1–2 week discovery defines scope, risks and estimate, and the proposal can be fixed scope or time & materials with a cap, in USD or BRL. Add the recurring costs of hosting, gateway and maintenance to the development cost.

Typical timelines are: discovery in 1–2 weeks, proof of concept in 2–4 weeks and the first version in production in 6–12 weeks. Large catalogs, many integrations or complex migrations are split into phases, each with its own estimate. The biggest factors are the quality of the product data and the availability of the ERP and partner APIs.

With a migration plan written before the code: an inventory of indexed URLs, a 301 redirect map, migration of products, customers and order history, and a cutover rehearsed in staging. Passwords are never migrated in plain text; when the source platform does not export the hash, customers reset their access. After the cutover we track 404 errors, indexing and the first orders. Some ranking fluctuation in the first weeks is common, and the redirects reduce that risk.

It needs to sell to companies the way your sales team already does: price lists and payment terms per customer, minimum order, credit limits, multiple buyers per company, quotes and quick reorder. Next comes ERP integration, so that prices, inventory and invoicing are the same as over the counter. Mahout ERP, which we built, combined orders, multi-warehouse inventory and finance on a single platform.

Yes: NF-e can be issued by your ERP, integrated with the store order, or by an invoicing service connected directly to the platform. In discovery we define where the invoice originates and which tax data the product catalog must carry. This is familiar ground: Mahout ERP, which we built, issued NF-e via SEFAZ, and we contribute to NFePHP, Brazil's leading open-source NF-e library. Tax rules are validated with your accountants.

Magento when a large catalog and B2B rules fit existing modules; headless when the buying experience or selling across several channels matters most; fully custom code only when the rules fit no platform. Headless separates the storefront, what shoppers see, from the commerce engine that handles catalog, pricing and orders. That raises build and maintenance cost, so it is not the default choice. Discovery compares the paths against your catalog and your integrations.

You choose: your in-house team, with the documentation and tests we hand over, or Master Timm under a monthly retainer. Either way the store ships with automated tests, CI/CD, monitoring and specs, so another team can take it over. On open-source platforms such as Magento, security and version upgrades are part of the maintenance plan from day one.