“Jan brought a high level of design expertise, ownership, and creative thinking that made an immediate and lasting impact on our product. Thanks to his contributions, we launched the company and product web with a strong, modern visual identity, and intuitive user experience that supports our business goals. Jan has the ability to balance visual aesthetics with usability, while always being open, communicative, and easy to collaborate with. Having Jan on board raised the overall quality of our product and team.”
It's a pleasure.Jan DurasFounder. Builder. Visionary.
I build brands, systems, and ventures with taste, clarity, depth, and direction.
Based in Slovakia. Founder of Corsius (opens in new tab). Founder of DURASIUS (opens in new tab).
Proudly had impact on
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JohnnydurasjanJD
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TestimonialsVerified testimonials
Trusted by people who care how things are built.
“I have worked with Johnny for many years, and beyond being colleagues, we have also built a friendship that could not exist without trust. What I value most about him is not only that he is highly skilled at what he does and has a truly broad range of abilities, but also that he can become genuinely passionate about a project when he belives in its success. In business, that is an invaluable quality. He shows talent in practically any creative field, including branding, marketing, and business strategy.”
durasjan (JD)Act 1:Overview
I work at the intersection of design, business, systems, and execution.
My work tends to live somewhere between brand, product, operations, and leverage — with a bias toward things that are sharp, useful, durable, built properly, and commercially real.
I'm drawn to ideas with real weight to them: strong positioning, elegant interfaces, operational depth, and businesses that become more valuable as they mature.
Based in SlovakiaFounder & CEO of DURASIUS
Act 2:Experience
A chronology — what I've been up to since the day 0.
Read left to right, then down — from now back through what came before. More detail on linkedin.com/in/durasjan.
In Revenue We Trust. The essential business infrastructure for your HVAC company — founded on 17 April 2026, a product with the mission to do things right, and help every HVAC business increase revenue, trust, and decrease hassle. Focusing on brand, website, marketing, and automations — all in one coherent place.
The ultimate holding company, brand and umbrella for all my ventures, clients and long-term direction — bringing everything under one name and building with more clarity and intent.
Started as QA Specialist on MODOC (pwc-modoc.com) — the world's leading end-to-end digital anti-doping SaaS. Later sold them on the idea to extend into product design and marketing, based on my background and skills, and currently providing both to both MODOC, as well as LEAP ERP (leap-erp.com) via DURASIUS (durasius.com) and its services. Sharpening product thinking, execution, and quality.
Helped co-found TechGuru SK/CZ from the ground up back in 2017 — shaping its identity, visuals, content direction, and later its full website evolution. Later taking the brand under "Powered by DURASIUS" umbrella as a portfolio project.
My self-employed chapter — design, web, video, and IT services, while learning how to turn skill into real-world value.
The early years, starting since I was 8 years old — making videos, designing, filming, and building things from pure curiosity long before it became work.
In Revenue We Trust. The essential business infrastructure for your HVAC company — founded on 17 April 2026, a product with the mission to do things right, and help every HVAC business increase revenue, trust, and decrease hassle. Focusing on brand, website, marketing, and automations — all in one coherent place.
The ultimate holding company, brand and umbrella for all my ventures, clients and long-term direction — bringing everything under one name and building with more clarity and intent.
Started as QA Specialist on MODOC (pwc-modoc.com) — the world's leading end-to-end digital anti-doping SaaS. Later sold them on the idea to extend into product design and marketing, based on my background and skills, and currently providing both to both MODOC, as well as LEAP ERP (leap-erp.com) via DURASIUS (durasius.com) and its services. Sharpening product thinking, execution, and quality.
Helped co-found TechGuru SK/CZ from the ground up back in 2017 — shaping its identity, visuals, content direction, and later its full website evolution. Later taking the brand under "Powered by DURASIUS" umbrella as a portfolio project.
My self-employed chapter — design, web, video, and IT services, while learning how to turn skill into real-world value.
The early years, starting since I was 8 years old — making videos, designing, filming, and building things from pure curiosity long before it became work.
— Endorsement
“Excellent work on the MODOC project! Johnny's design skills, creativity, and dedication brought great value to the platform. It has been a pleasure to work with someone so committed and detail-oriented; an essential part of the team.”
Act 3:Education
Education, certifications, and KNOWLEDGE.
Education
Formal studies ran alongside years of hands-on learning in video, design, marketing, and business. Getting my skills to action numerous times even for the school's benefit.
2nd Education with Maturita Diploma
in Mathematics & Computer Science
Certificate
Completed the Google UX Design Professional Certificate to sharpen my ability to design clear, reliable interfaces and flows for real users—skills I now apply to infrastructure products like Corsius.
Google UX Design Professional Certificate (v2)
Issued by Google · Nov 2024
Credential ID L4QMFP4V3X3K
Show credentialSelf-taught
Uncountable value of real-world skills, knowledge, and leverage gained by personal persistance, passion, and countless hours, blood, sweat, and tears.
Act 4:Current Ventures
Ventures, systems, and products I'm currently building.
Act 5:Philosophy
Four pillars — disciplined, durable, designed to compound.
— i↗
Brand & Positioning
Sharper presentation, narrative, identity, and market framing.
— ii↗
Product & Experience
Interfaces, systems, flows, and product surfaces that feel intentional.
— iii↗
Systems & Operations
Logic, structure, automation, and the machinery behind good outcomes.
— iv↗
Ventures & Long-Term Bets
Products and businesses designed to compound over time.
I like work that has weight to it.
Things with strong bones.
Things that solve something real.
Things that are designed with care, but also hold up operationally.
Things that still make sense a year later.
Not to only look impressive quickly, but also keep earning trust and compound.
Act 7:Contact
If you're building something serious and want it sharper, clearer, or better structured — reach out.
Available for selected projects, consulting, and collaborations.
Follow me on social media.
LinkedIn
in/durasjan
Instagram
@durasjan
X
@DurasJan