About me

One engineer.
End-to-end ownership.

HLT3 Studio is my one-person product engineering studio and the client-services arm of Health3 AG. The same person on your first call makes the architecture decisions and ships the code.

My Story

I started Health3 to solve a personal problem: making lab results understandable and useful over time. I designed and built the product, backend, document pipeline, and releases.

Building Health3 taught me how to create apps that people actually use — apps that are fast, reliable, and beautiful. I learned to parse complex medical data, build secure backends, and scale infrastructure to handle real users.

Now, through HLT3 Studio, I bring that expertise to select clients who want the same level of quality and care in their digital products. Whether you're a startup launching your first app or an established company modernizing its stack, you work with me directly from scope to handover.

15+
Years Experience
3
Products in Market
27+
Countries Reached
5.0
Health3 US Rating

How I Work

The principles behind every HLT3 engagement.

Results-Driven

I measure the work by the outcome it creates, not by how much code I can bill for.

Speed & Quality

AI-assisted execution increases speed; senior review, testing, and judgment remain mine.

Direct Partnership

You speak directly with the person designing, coding, testing, and shipping your product.

Transparency

Clear communication, honest timelines, and no surprises. You always know where your project stands.

Meet the Founder

The person behind HLT3.studio, bringing 15+ years of engineering experience to your projects.

Vaclav Skarka - Founder of HLT3.studio

Vaclav Skarka

Founder & Lead Engineer

With over 15 years of experience in software engineering, I've built systems across fintech, health tech, and enterprise software. My background spans from banking core systems to modern cloud-native architectures and mobile development.

I founded Health3 to solve a personal problem — understanding my own lab results — and it grew into a product helping people across 27+ countries take control of their health data. Now, through HLT3.studio, I bring that same passion for quality engineering to clients who want reliable, well-crafted software.

Based in Zurich, Switzerland, I hold certifications in Software Architecture (ISAQB CPSA-F) and have deep expertise in Flutter, AWS, and modern backend technologies. I believe in transparent communication, clean code, and building products that actually solve problems.

My Tech Stack

Technologies I Use in Production

I choose the right tools for each job. These are the technologies I already operate in real products.

Mobile

FlutterDartiOSAndroid

Backend

SupabasePostgreSQLNode.jsDenoOracle

Cloud

AWSLambdaS3CloudFrontBedrockTextractCloudFormationEdge

Frontend

Next.jsReactTypeScriptTailwind CSS

DevOps

GitHub ActionsDockerJenkins

Analytics

MixpanelCloudWatch

Web & SEO

Technical SEOProgrammatic SEOContent StrategySchema Markup

Work directly with the builder.

Tell me what you need to launch. I'll tell you honestly whether I am the right person to build it.

Get in Touch