Enterprise CMS

TYPO3 Specialist.

When You Need a TYPO3 Expert Who’s Seen It All

With 20+ years of TYPO3 experience, I bridge the gap between complex technical development and your business goals.

Currently taking new projects

                                
namespace SeventhGreen\Expertise;

readonly class TYPO3Consultant
{
    public function __construct(
        private int $experience = 20,
        private string $approach = 'Honest'
    ) {}

    public function optimizeSite(Website $site): Result
    {
        // Aligning code with business goals
        return $site->scale()
            ->secure()
            ->convert();
    }
}

TYPO3 Services

Whether you’re starting from scratch, improving an existing setup, or simply need a reliable TYPO3 expert to support you, I can help.

What I Offer

Developing Dynamic TYPO3 Websites

I create TYPO3 websites that combine strong technical architecture with modern design and usability.

Challenges I’ve helped clients with include building websites that are easy to manage by your technical and marketing teams, developing a multilingual and scalable CMS, and integrating your website with other business systems.

TYPO3 Extension Development & Upgrades

Get the exact functionality you need without messy code or legacy issues.

When standard extensions don’t quite fit, I build and upgrade custom ones that integrate perfectly with your workflow. Whether it’s a booking system, data integration, or a special backend module, I create clean, well-documented extensions that make TYPO3 do exactly what you need without unnecessary bloat.

Assistance with Your Existing TYPO3 Projects

TYPO3’s power depends on staying current.

I manage upgrades from older versions to the latest LTS, including database migrations, extension compatibility checks, and deployment testing. The result: a modern, faster, and more secure TYPO3 site that’s easy to maintain.

TYPO3 Installation & Setup

Setting up TYPO3 the right way from day one saves countless hours later.

I handle full installation, configuration, and environment setup, so your site runs smoothly, securely, and efficiently from the start. I’ve resolved TYPO3 issues such as confusing initial setup or server configuration, security and performance issues, and built future-proofed, Composer-based TYPO3 setups.

TYPO3 Deployment Pipelines

Automate deployment for safer, faster, and more consistent TYPO3 updates.

I help businesses set up development environments and implement CI/CD pipelines tailored for TYPO3, so updates move from development to production smoothly. Downtime: reduced, errors: minimized, ongoing maintenance: effortless.

TYPO3 Performance Optimization

Make your TYPO3 site faster and more stable.

Over time, TYPO3 sites can slow down: heavy extensions, old templates, or caching misconfigurations drag performance down. I’ll help you identify the causes and tune the system so pages load quicker, backend work feels smoother, and the site stays responsive under load.

The Expert Behind 7th Green

Hi, I’m Tomas Norre Mikkelsen

I’m the owner at 7th Green, and I bring over 20 years of hands-on experience to every project.

Before going freelance in 2025, I built a strong track record working across companies and complex projects, including working with Sony PlayStation Network and Congstar during my time at AOE GmbH. I have also worked as a Senior DevOps Engineer at TYPO3 GmbH.

You will be working directly with a developer who understands TYPO3 deeply, from core development, extension architecture, frontend/backend integrations and DevOps workflows to full lifecycle support.

Let’s Start Planning Your TYPO3 Project.

If TYPO3 is already on your roadmap, now is the time to start planning!

I’d be happy to review your current setup, identify what’s working and what’s holding you back, and propose practical next steps - no obligation.

Talk soon!