Heiner Giehl · Freelance developer

A freelance full-stack developer for your entire web application.

I'm Heiner Giehl. I build websites, online stores and web applications for small businesses, independent professionals, individuals, startups, agencies and larger teams. From frontend and API to database and deployment, I help with the complete implementation. My freelance rate is $30 USD per hour, with remote collaboration worldwide in English or German.

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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

From your first website to a complex existing application

Beautiful websites and online presence setup

A business website, personal portfolio or landing page with modern, individual design. I develop responsive layouts and help with domain, hosting and launch. This portfolio is a visible example of my design and frontend work.

Online stores and e-commerce development

Product catalogs, storefronts, checkout and shop integrations for independent sellers and growing businesses. We define the platform, payment flow and administration requirements around your products and budget.

Web applications, SaaS and MVPs

Turn your requirements into a working product: customer portals, dashboards, booking systems, editing tools and business applications. I connect frontend and backend so the complete user journey works.

Frontend and backend development

Responsive interfaces, server-side business logic, REST APIs, authentication and database design. I work with JavaScript, TypeScript and PHP, selecting frameworks that fit the application and your team.

Project takeover, fixes and refactoring

Need a freelance developer for an existing codebase? I investigate the problem, learn the architecture and deliver focused improvements, whether that means a difficult bug, new features or reducing technical debt.

Integrations and ongoing development

Connect external APIs, payments, webhooks and AI features. I can also help with Docker, Linux, Nginx and deployment, then continue improving the application as requirements evolve.

Technology

The right stack for your application.

My work spans frontend, backend, databases and infrastructure. Have a different technology stack? Send me the details: I am comfortable learning unfamiliar systems and will assess the implementation with you before we agree on scope.

TypeScript
JavaScript
React
Next.js
Vue
Nuxt
Node.js
Express
NestJS
PHP
Laravel
Filament
PostgreSQL
MySQL
MongoDB
Redis
Docker
Linux

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.

A full-stack visual editor

An independently built project combining a Next.js and TypeScript application with interactive canvas editing. Explore the implementation as an example of frontend and application work.

View project

AI software for Laravel and Filament

My own chatbot product connects knowledge retrieval, workflows and APIs. It demonstrates the kind of application logic and integrations I can build for your project.

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.

01
Understand the task
We discuss your goal, existing software, requirements and budget. I propose a practical first step.
02
Build in clear steps
I deliver focused changes with understandable updates. We discuss new requirements and their impact before expanding the work.
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

Do you also take on small projects and individual clients?

Yes. I work with small business owners, self-employed professionals and individuals as well as companies and agencies. A website, an online shop, a single integration or a focused bug fix can all be a useful starting point. We agree on the scope and my availability first.

What does hiring you as a freelance developer cost?

My hourly rate is $30 USD. We agree on the scope, an initial effort estimate and a budget before implementation. Third-party services, hosting and API usage are discussed separately. Any applicable taxes and invoicing details are clarified in the offer.

Do you work with clients outside Germany?

Yes. I work remotely worldwide and communicate in English or German. We agree on meeting times, project updates and how to handle any time-zone difference at the start.

Can you handle a technically difficult project?

Challenging projects are welcome. I approach unfamiliar systems and difficult bugs with careful analysis, clear milestones and targeted verification. Send the requirements or current blocker so I can assess the next steps and give you a realistic plan.

Can you join an agency or an existing development team?

Yes. I can contribute frontend, backend or full-stack development within your existing repository and workflow, or take responsibility for a clearly defined integration or feature.

$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.

Email about your project webdevislife2021@gmail.com