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DL-BLD-03 · Build / Custom software

Custom e-commerce software development

Repricers, order systems, portals, internal tools and SaaS products for marketplace and e-commerce businesses. Designed, built and maintained by one team, and owned by you.

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51.4344.0060°03BUILDDETAIL 03 · BUILD · DL-BLD-03

When custom e-commerce software development pays off

  1. 1.

    Your process is your edge, and no SaaS tool models it.

  2. 2.

    Subscription fees grow with every account and every seat.

  3. 3.

    Third-party tools hold your data and your clients' data.

  4. 4.

    Five tools, five logins, and still no single view.

Your team and clients use a web application whose business logic, scheduled workers and database sit in a client-owned codebase, connected to the marketplace APIs and to existing systems such as the ERP or Google Sheets.CLIENT-OWNED CODEBASErequeststasksprices, orders, listingssyncTEAM / CLIENTSBrowserWEB APPUI / admin panelBUSINESS LOGICYour rulesWORKERSScheduled jobsDATABASEPostgreSQLMARKETPLACE APISSP-API / Ads APIEXISTING SYSTEMSERP / Sheets
  1. 01TEAM / CLIENTSBrowserWEB APPUI / admin panel
  2. 02WEB APPUI / admin panelBUSINESS LOGICYour rulesrequests
  3. 03BUSINESS LOGICYour rulesWORKERSScheduled jobstasks
  4. 04BUSINESS LOGICYour rulesDATABASEPostgreSQL
  5. 05BUSINESS LOGICYour rulesMARKETPLACE APISSP-API / Ads APIprices, orders, listings
  6. 06BUSINESS LOGICYour rulesEXISTING SYSTEMSERP / Sheetssync
Fig. 03A custom application you ownYour team and clients use a web application whose business logic, scheduled workers and database sit in a client-owned codebase, connected to the marketplace APIs and to existing systems such as the ERP or Google Sheets.Scale NTS

What the engagement covers.

  1. 01

    Tools for sellers and vendors

    Order management, repricing and analytics tools that link marketplace data and remove manual work.

  2. 02

    SaaS products

    New SaaS products built from the concept up; existing ones extended, upgraded and maintained.

  3. 03

    Agency software

    Internal tools or resellable products that work alongside Jungle Scout, Helium 10 or Sellerboard.

  4. 04

    Enterprise systems

    Large catalogs and automation connected to SAP or Oracle, without per-seat subscriptions.

  5. 05

    Beyond marketplaces

    Full platforms too, such as a car auction site and a personalised greeting-card shop.

How it runs.

  1. P01

    Workshop

    When the idea needs shaping: 16 to 80 hours defining features and validating the concept.

  2. P02

    Estimate

    Scope, timeline and cost in writing, based on our hourly rate.

  3. P03

    Develop

    Iterative development, with progress reported by a dedicated project manager.

  4. P04

    Implement

    Deployment, training and handover to your team.

  5. P05

    Maintain

    Fixes, upgrades and new features under a maintenance plan, if you want one.

What you get.

ItemDeliverableQty

  1. 01A web application in production1
  2. 02Full source code, scripts and project files, owned by you1
  3. 03Training for your team1
  4. 04Optional maintenance package1

Stack08

  • Node.js
  • TypeScript
  • Next.js
  • AWS Lambda
  • PostgreSQL
  • Amazon SP-API
  • Amazon Ads API
  • Google Sheets

Related projects.

  1. DL-003Acorn: SaaS for Amazon sellersGreenwald Brands · USA03Build
  2. DL-007Custom repricing software for a European sellerPakTrade · Austria03Build
  3. DL-008Custom software for tracking prices and BuyBox winnersBolt About · USA03Build
  4. DL-013Fully automated car auction platformSwiss Auto · Switzerland03Build
All case studies

Questions engineers ask us.

Q01Who owns the software after you build it?

You do. Once the project is delivered, you legally own everything needed to run, maintain or extend it: source code, scripts, project files and executables.

Q02What does a custom build cost?

It depends on complexity, the systems to integrate and the support you need. Past projects ranged from $7,000 to hundreds of thousands of dollars. We quote in detail after a free discovery call.

Q03Do you maintain the software after launch?

Yes, through flexible maintenance packages. If you decide you don't need support, that's fine too: the code is yours.

Q04We have an idea but not the full feature list. Can you help define it?

Yes. We run workshops of 16 to 80 hours to work through the functionality with you and design the concept before anything is built.

Q05Our project is not about Amazon or marketplaces. Can you still help?

Yes. Marketplace commerce is our specialisation, but we also build for logistics, agriculture, automotive and other industries.

Related services.

Start with the problem

Bring the process or the idea. A free discovery call turns it into a concept and a detailed quote.

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