How my team members and I won a combined 20 hackathons and so could you

Between the four of them, Vlad Măcelaru and his team members won a combined 20 hackathons. In this article, he shares what participating in hackathons taught him so you could participate and win hackathons as well. He also views hackathons as a stepping stone to entrepreneurship so if you want to become an entrepreneur and you don’t know where to start, this article is for you.  

It was a Sunday evening in the spring of 2017. Here I was in my rented flat on the 7th floor of a block of flats in Bucharest, with the big park across to cool us a bit, sitting with Ionut, this guy I met yesterday at a hackathon.

We won the hackathon and now we were already planning our second, the NASA Space Apps Challenge, world’s biggest hackathon. I’m overly excited, Ionut seems calm yet very confident in everything he says.

“We’ll do a very small solar panel, I’ll get what we need. We also need at least two more on our team.”


At that point, I still didn’t know exactly what a hackathon was. I knew what we were about to build, had an idea on how to frame it and we thought of two friends that could join us. Little did I know that we were on our way to winning the competition or meeting Dumitru Prunariu, the only Romanian cosmonaut, who spent a week in space in 1981. And I also couldn’t have imagined how these weekends would turn into friendship and our greatest project so far, ClarK, the glasses that can see through walls.


This is our project for the NASA Space Apps Challenge – SUN:200, a tool to plan energy consumption based on expected energy output from solar technologies.

What is a hackathon?

Let’s start with the basics. The word hackathon represents a combination of hack and marathon.

Despite its computer security connotation, the word hack is actually used in the sense of exploratory programming and borderline engineering.

A hackathon is typically a two-day competition, like design sprints, where programmers, designers, project managers, specialists or curious folks collaborate to create a proof of concept or prototype, be it hardware or software.

Usually, hackathons are built around a theme or topic and involve prizes for the best teams.

Companies are organising quite a few such events nowadays, looking for creative high-tech solutions to novel problems, or just willing to recruit talent. This brings opportunities for tech-savvy youngsters and a potentially great experience for those considering an entrepreneurial project.

A hackathon can be a pretty good simulation of the (chaotic) entrepreneurial life.

What can you learn by participating in a hackathon?

  1. Finding or assembling a team
  2. Collaboration
  3. Tools & concepts
  4. Pitching

How to get the most out of a hackathon?

1.Firstly, decide why are you participating.

Do you wish to meet people? Find a colleague? Validate an idea? Have fun? Explore?

I went to my first hackathon to explore; I was curious about the mechanisms of such events and about the type of products I could find there.

It was Startup Weekend 2017 in Bucharest, organised by Google for Entrepreneurs, where I met my close friend and co-founder, Ionut.

The next weekend we formed a team for NASA Space Apps Challenge. On April 29 2017, at Ionut’s initiative, I joined the team and brought along Alexandru, my high-school friend.

Our mix of skills and knowledge was great, but we lacked a good software programmer – such as Costin, a young and witty kid from a rival team. The four of us would go along and create ClarK a few months later.


Alexandru and Ionut working on our project for the NASA Space Apps Challenge



Alexandru and me

[bctt tweet=”Vlad Macelaru on winning hackathons: Don’t make an island out of your team.” username=”brand_minds”]

2. Make sure that your plan for the weekend maximises the output you are looking for.

If you’re looking for validating an idea, talk to as many mentors or potential partners as possible and document their opinions.

If you’re looking for co-founders or colleagues, try to work with them and see how well you collaborate.

If teams are already established and it is not possible to mingle, try to observe how people interact and work together in other teams, just as if you were a recruiter. There’s always time to get someone from a different team for a chat.

Don’t make an island out of your team.

3. From idea to hack and beyond

At our first hackathons, we would mostly build single-use prototypes over the weekend that would end up in a drawer and somewhere in the cloud.

It was in March 2018 at Innovation Labs when we committed to building a complex product, starting with the idea of glasses that can see through walls. We’re still after this in a certain way.

Since then we participated in many more hackathons, competitions and conferences.

The main objective was to develop the concept and make it popular among the tech community. However, sometimes it happened that we went to events only for the win.

5 tips to win hackathons

If you’ve reached so far, let’s cut to the chase.

If you’re looking for the prize, it’s an advantage to know the bigger picture and mechanisms behind such competitions.

1.Understand the context you are in.

What is the purpose of the hack? Who’s judging? By which criteria? What are the mentors telling you? What are the other teams working on?

2. Know the rules

A competition has a set of rules and systems behind it. I wouldn’t enter a game I didn’t know the rules of.

3. Come prepared

In most hackathons, the winners are selected by a jury. However, some have systems based on voting.

Jury members are both technical and non-technical, and sometimes they happen to not be familiar with hackathons.

They will buy into shiny ideas surrounded by buzzwords and you can guess some of their areas of interest based on their jobs or profiles.

Don’t consider this cheating, it’s due diligence and it won’t guarantee you an advantage. But the better prepared you are, the better the chances.

4. Manage time and emotions

A hackathon is a full day of coding and going through ideas will be intense and can make people flip. Every member of the team is essential, and time is precious.

PS: In a hackathon, someone always has to win, regardless of how strong the competition is. This is not the case in business.

5. The hackathon has ended. What’s next?

Process the information you learned at the event & research deeper, particularly about business plans (business model canvas), new technologies and any ideas you found interesting.

Also, think about how your relationship with the team went and why.

If you decide you wish to continue in entrepreneurship, an accelerator program would seem the next logical step.

This, of course, after you have a team and a strong idea.

I will expand on these topics in the next parts of this series.

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5 domains that will be revolutionised by VR – part I

The virtual reality is here and ready to help not only entertain, but educate and influence profoundly our lives, for the better. Here are 5 domains that already see a big influence and that will see even more in the future.

  1. The real estate industry

Virtual reality can be a great asset when it comes to the real estate. From buying a house, 360 views and being a help for the real estate officers, VR can come in handy and prove to be really helpful. When it comes to open houses, a majority of the real estate domain is moving, well, to domains. The entire estate agent process can be performed online on sites like eMoov and CastleSmart, with virtual reality added in, buying a house is about to become a whole lot more lazy.

When a client is interested in buying a specific property the estate agent will usually arrange a viewing of said property or, in more lavish cases, host an open house. These events allow the potential buyers to walk through the home and examine the property. Now, imagine the prospective shopper was able to view the property from the comfort of their own home. Likely it would result in a greater interest for that residence which would create a faster sale. With VR this is very possible. Clients could put on their headsets and could be electronically strolling through the property within seconds. This means a lot of time and resources that are speared.

Moreover, the virtual reality can help so that the entire inspection could take place from the workplace of the agent. Several images and videos of the property would need to be taken to ready the virtual home for inspect. The same procedure would need to take place if a valuation was to be made via VR.

Also, most trainee estate agents learn the ropes by shadowing one of their senior colleagues on the job, following them around on viewings, visits and valuations, etc. Virtual training methods could be created which pits the user in situations that they would face on the job,  such as getting questions from potential buyers, explaining features in a property. This could save real estate firms thousands in training expenses.

2. Education

According to the Smithsonian Mag, the students in classrooms across the United States and parts of Europe will soon be able to go on field trips to Buckingham Palace, Machu Picchu and the Great Barrier Reef, but they’ll be doing it through virtual reality. Google recently announced that it is expanding its  Expeditions Pioneer Program, which brings virtual reality field trips to classrooms using Google’s cheap, smart phone-based VR viewer,  Cardboard. The goal is to expose students to places they wouldn’t be able to see otherwise.

The idea for Expeditions came from a hackathon in Google’s education department. Given 36 hours to create a tool that would boost student engagement, Jen Holland, then a product manager at Google Apps for Education, drew on existing Google assets—the recently launched Cardboard, some teaching apps in development and a huge archive of 3D maps and photographs. She combined the three to make interactive virtual reality lessons, which she calls “experiences.”

Students can use Cardboard—an inexpensive pair of VR goggles made from a cardboard cutout, magnets, an Android phone and an app—to move through an experience that their teacher controls from a tablet. The Expeditions program has distributed the equipment to classrooms and worked with teachers to figure out lesson plans, but now, Holland says, they’re opening it up, so any teacher with a tablet and access to VR viewers (Cardboard costs about $20) can use it. With lessons loaded on the tablets, teachers and students don’t need to have internet access, which is important for low-resource classrooms.

Once students put on the VR headsets, they’re immersed in a 3D version of Machu Picchu or the Smithsonian’s National Museum of Natural History. They can look around, and the teacher can share information about things they’re seeing. Google built a Great Wall of China experience for a fifth grade math class, to give the students a more tactile lesson about multiplication. The same experience has been the topic of conversation in a 10th grade Chinese language class, and it provided physical context for students in a 12th grade history class and an anthropology lecture at a Brazilian university.

More you can read here.


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