Heiner Giehl · Freelance developer

An online store built around what you sell and how you work.

Starting a small business, selling independently or improving an existing online shop? I help turn your requirements into an e-commerce website with the interfaces and integrations you need. My development rate is $30 USD per hour, with remote collaboration worldwide in English or German.

My hourly rate

30 USD

per hour · billed in US dollars

Remote worldwide

Work directly with me in English or German. We agree on tasks, budget and timing before starting.

Hosting, licenses, API fees and any applicable taxes are clarified separately in the offer.

What I offer

A practical route from your products to a working store

Storefronts and product catalogs

Responsive product pages, categories, search and filtering that help customers find the right item. We define product types, variants and content requirements before building the interface.

Shopping cart, checkout and payments

Connect the purchase flow to a suitable payment provider and implement the application behavior around checkout. I check payment confirmation, failed transactions and order handling as part of the agreed scope.

Order management and external systems

Admin interfaces and API connections for orders, stock, shipping or existing business software. I help avoid repeated manual data entry by connecting the systems involved in your workflow.

Existing shops and custom features

Improve a storefront, investigate a checkout bug or add a missing integration. Send the platform and current problem so we can choose between adapting the existing shop and developing a custom component.

Technology

The right stack for your application.

I develop shop interfaces and integrations with modern web technologies. The platform choice depends on your budget, existing system and how you want to maintain products and orders. We assess an existing platform before agreeing on implementation.

  • TypeScript
  • React
  • Next.js
  • Vue
  • Nuxt
  • Node.js
  • PHP
  • Laravel
  • Filament
  • REST APIs
  • Webhooks
  • PostgreSQL
  • MySQL

My own projects

Software you can explore before we talk.

These are my independently developed products and portfolio projects. They show concrete implementation alongside the technologies involved.

Product imagery and admin tools

My own Filament image-editor plugin demonstrates visual editing within a back office. It is an example of related interface work, rather than a client shop reference.

View project

Knowledge-based support and integrations

My independently developed chatbot product demonstrates knowledge retrieval, widgets and API connections that can also support product questions and customer-service workflows.

View project

How I work

Careful implementation. Clear collaboration.

I welcome complex work. I investigate the system carefully, communicate open questions and verify whether a change actually solves the agreed problem.

  1. 01

    Understand the task

    We discuss your goal, existing software, requirements and budget. I propose a practical first step.

  2. 02

    Build in clear steps

    I deliver focused changes with understandable updates. We discuss new requirements and their impact before expanding the work.

  3. 03

    Verify and hand over

    I check the affected flows and relevant failure paths. You receive the code and guidance for using and maintaining the implementation.

Questions about hiring me

Can you help a small business or an independent seller?

Yes. You do not need a large team or an existing software product. Tell me what you want to sell, which countries or languages you need and your budget, and we can define a manageable first version.

How much does building an online store cost?

My development rate is $30 USD per hour. The total depends on the platform, product catalog, design, checkout and integrations. We agree on an effort estimate and budget before work starts. Hosting, platform subscriptions, payment-provider charges and any applicable taxes are clarified separately.

Can the shop support more than one language?

Yes. We can plan language-specific content, navigation and product information. The required languages, translations, currencies and delivery regions are defined as part of your project scope.

Can you add features to an existing e-commerce platform?

Send me the platform, relevant integrations and the feature or bug. I will review the available extension options and propose a practical implementation before we agree on the work.

$30 USD / hour · Worldwide

Tell me about your project.

Send your goal, technologies and desired timeline and budget. For an existing project, include a short description of the current problem. We can then clarify the scope and my availability.

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