Hanna C.

Hanna
Cieleszky

I want to learn how businesses can grow while giving more back to people and the planet than they take.

Read my story LinkedIn
Portrait of Hanna Cieleszky
Curiosity · Responsibility · Long-term thinking · Collaboration
01 — About me

Hi, I'm Hanna.

I'm 18 and in my final year at Lánczos Kornél Gimnázium in Székesfehérvár, in the German-language section. Before that, I went to a Baptist Hungarian–English bilingual primary school, so speaking English feels natural to me, and I already passed my advanced-level English Matura in 2025. My siblings live and study abroad, and an international environment has always been part of my life.

I started working early. Since 2023 I've been part of the team at an Italian café in Gárdony, I spent two summers in marketing and PR at UNIQA Insurance, and I've volunteered twice at the European Organisation Design Forum's annual conference, most recently in Athens. All of it taught me the same thing: a good team and real trust make work meaningful. I'm curious how companies work, and lately how they can cut waste, from food waste to emissions.

Languages Hungarian (native), English (B2), German
Education Lánczos Kornél Gimnázium, German section, 2023–2027
Based in Gárdony & Székesfehérvár, Hungary
02 — Why sustainable business

Business is one of the strongest levers for change.

Companies decide what gets made, how it travels and what happens to it afterwards. At UNIQA I saw how a company's communication shapes what people think of it. Volunteering at the European Organisation Design Forum showed me how organisations can be built around people. I want to bring the two together, for the planet as well.

Circular economy

Designing products and services so materials stay in use and waste becomes a resource.

Fair supply chains

Seeing the people and places behind every product, and making the whole chain more transparent.

Measuring impact

Sustainability reporting that turns good intentions into numbers a company can act on.

A global view

Learning from best practice around the world in an international, English-speaking classroom.

“When my work changes, I change too.”

— Hanna

03 — What I bring

Skills I've built by doing

  • 01 Communication Two summers in PR and marketing at UNIQA: brand events, media monitoring and clear, friendly messages.
  • 02 Teamwork From a busy café in Gárdony to the volunteer team of an international conference in Athens.
  • 03 Reliability A part-time job alongside school since 2023. Showing up and doing it well, every shift.
  • 04 Curiosity I follow how companies cut waste and emissions, and I want to help make that the everyday norm.
04 — Experience

What I've done so far

Volunteer, EODF Annual Conference European Organisation Design Forum. Supported the organising team two years running, most recently at “Thriving by Design” in Athens, as one of the youngest registered participants.
2025, 2026
Internship Trainee, Marketing & PR UNIQA Insurance. Two summers inside the full PR and marketing process: on-site brand events at Művészetek Völgye and Kékszalag, media monitoring and communication support.
Summers 2024, 2025
Service Assistant, part-time Dolce é Salato, an Italian café in Gárdony. Working with guests and a close team, where kindness, attention and reliability count every day.
2023 – present
English Language Certificate, B2 Euroexam International
May 2023

Let's talk about a more sustainable future.

Happy to connect with students, mentors and anyone working on sustainable business.

cieleszkyhanna@gmail.com LinkedIn