Freelance Web Developer

Let’s bring your ideas to life.

Web Core Logic

From clean code to creative interfaces — I craft websites, apps, and SEO strategies that help your brand speak louder online. Every project is built with purpose, clarity, and results in mind.

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about me

Hi, I’m Schlack Andreas, the developer behind Web Core Logic.

I help freelancers, founders, and small business owners shape their online identity from the ground up. I don’t just build stuff that looks good — I listen, ask the right questions, and create tools that actually support your growth. No stress, just smart collaboration and results you’ll be proud of.

Why Me

Boost Your Brand with Smart IT Solutions

Good Performance

Your users expect speed — and I make sure your website or app runs smoothly, loads fast, and performs well under pressure.

Highly Secure

I stay up-to-date with the latest security practices to help keep your data safe, your platform stable, and your users confident.

Fast Development

I respect your deadlines and build efficiently, so you’re never left waiting. You’ll get working solutions quickly, without cutting corners.

services

I focus on quality

Here’s how I work — I don’t just crank out generic sites or bloated apps. Every project is personal. I treat it like something I’d want my own name on. That means focusing on details, asking the right questions, and building something that not only works — but actually moves the needle for your business. I stay away from buzzwords and shortcuts. This is real work, done right, with real results you can count on.

Website Design & Development

A great website should feel natural to use — fast, clear, and smooth. Whether you’re looking for a landing page that converts or a full custom site with bells and whistles, I make sure everything is functional and on-brand. No unnecessary animation, no clutter — just thoughtful design that guides your visitors exactly where they need to go.

Mobile Apps Development

Today’s users expect mobile apps to work instantly, look familiar, and feel effortless. I build apps that deliver that kind of experience — fast, intuitive, and stripped of anything you don’t need. Whether it’s for customers, clients, or internal use, it’ll be lean and effective.

Successful Projects

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I’ve worked on everything from quick landing pages to full-scale applications. Each project matters — because each one tells a story about your business. And how I build it tells a story about mine.

Every time I take on a project, I treat it like more than just code. At Web Core Logic, I’m focused on helping you connect with your audience, grow your brand, and turn your digital ideas into something real.

testimonials

what our clients say

Schlack Andreas was hired mainly for SEO work, and we can hardly believe the results. Traffic has increased significantly, but above all else, so have leads and conversions. From the beginning, he discussed everything with us in layman's terms and kept us informed right through to the end. His advice was sound and we could actually apply it ourselves. He is not just another SEO guy; he's your partner who has a vested interest in your business.

Michael, GlobalWeb Solutions

Hiring freelancers was always unnerving for me. But the working experience with Schlack Andreas between us changed it completely. He was patient, clear on communication, and delivered on everything when he had promised, with no surprises or excuses. I knew exactly when we were at different stages, and he ensured that I clearly understood the steps that his work took. It was more than just a technical job; it was a collaboration really. The final product was to my utter satisfaction, and I could not be happier about the whole process.

Allen, Envato Street

Prior to partnering with Web Core Logic, we were stuck looking for somebody who could get our mobile app done without making it more complicated. He listened, asked insightful questions, and came up with the perfect solution for our audience. It was a very laid-back but professional vibe, and we even looked forward to the updates. The app looks fantastic and performs without a hitch, and we'd recommend him 100% to anybody doing build-from-scratch stuff.

Walker, Envato Street

I have worked with a handful of others, but Schlack Andreas is truly unique. From the very first call, no guesswork, no back-and-forth, he just understood what we were trying to achieve. Our ideas turned into a beautiful, modern site that just felt good. Everything seemed to fall into place with transparency and even a little fun along the way. You hardly ever find somebody who can work deftly technically while keeping it so down to earth.

Clara, BrightApps Inc.

FAQ's

all your queries are answered

How long will my website take?

The usual estimate for any website is between three to six weeks. But it all depends on how deep you want to go with your project. It might involve a simple landing page that takes hooks and completes in less than two weeks. This could take more time if you have an advanced website with multiple features, integration, or custom design, but don’t worry: I’ll keep you updated on a schedule that works with you.

Can you do both design and development?

Of course — I take care of everything from beginning to end. I manage both appearance and logic, from initial conceptualization and wireframes to polishing and deployment. You won’t have to coordinate between multiple people or agencies. I’ll make sure it’s beautiful and runs smoothly across any device.

Do you provide support after launch?

Yes. Actually, I like it. I stay around afterwards to handle fixes, updates, and new features you might want to add along the way. Think of me as your long-term tech partner. Whether it's answering your late-night email or tweaking a layout six months later, I’ve got your back.

Will my site work on mobile phones?

Definitely — mobile-friendliness is built into everything I do. I make sure your website adjusts perfectly to all screen sizes, whether it’s a smartphone, tablet, or something in between. Plus, I test across different devices and browsers to ensure a consistent, smooth experience everywhere.

Why work with a freelancer instead of a big agency?

When you work with Schlack Andreas, you’re not just another invoice on a company spreadsheet — you’re a real person I’m collaborating with directly. There’s no middleman, no account manager slowing things down. Just real-time decisions, honest feedback, and personal commitment. You’ll always know who’s working on your project — me — and I’ll always be a message away.