Dan I.
Building iOS & Android Apps | Sharing everything I learn along the way
Cluj-Napoca, Cluj, România
7 K urmăritori
Peste 500 de contacte
Despre
I like to believe in tech fairy tales, where a developer falls for technology, and maybe sometimes the technology plays "hard to get", but in the end our hero ends up learning it inside out, they unite on a team and live happily ever after.
I think of myself as such a hero, because I am passionate about my work and self-motivated to become a brilliant software engineer. I like to push technologies to the limits and to create exciting products that, most of all, change people's lives for better. Besides this, I love challenging problems, I have the desire to learn new things and to continuously improve myself and everything I touch.
My passion for great achievements set off from early mid-school with mathematical contests, my career started as a Java developer, but my actual story began when I became a mobile software engineer. I am happy about this, I am willing to work hard to become one of the best software engineers out there, but also to be contributing something valuable to the world.
Articole de Dan I.
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What it takes to build good software products?
What it takes to build good software products?
About 4 months ago I've been to Rome for a weekend and besides all the amazing things that I could see there, it got me…
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Key principles for good software engineers - part 3/3
Key principles for good software engineers - part 3/3
Welcome to the 3rd and final article from this mini-series. I hope it was interesting for you so far and this last part…
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Key principles for good software engineers - part 2/3
Key principles for good software engineers - part 2/3
Remember how in the first article we began by saying that repeating yourself is not good when it comes to mistakes, and…
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Key principles for good software engineers - part 1/3
Key principles for good software engineers - part 1/3
During our software development journeys, we make a lot of mistakes and we see a lot of them from others too. This is a…
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Learning and coding vs. Making an online presence
Learning and coding vs. Making an online presence
When I graduated college, a few years ago, being a successful software engineer meant (to me, at least) knowing…
Activitate
7 K urmăritori
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Dan I. a distribuit aceastaI've written in the past about "the future of mobile app development" 👀 and I still believe in this one cool branch that us, mobile devs, can get into, which is also harder to vibe code for. tl;dr - building apps for wearables: smart watches, fitness trackers, and lately: smart glasses 🕶️ We're already used to prioritizing performance and efficiency, due to the limited hardware resources and batteries of our devices 📲 unlike on the server side, for example. Some of us are also experienced with connecting to IOT devices via Bluetooth or Wi-Fi, and if you're not, I promise it's not rocket science, but there are a few principles to keep in mind. More on this in a future post. For now, I'm seeing companies like Apple or Meta putting a lot of R&D effort into building wearables that have good quality, are reliable (Vision Pro) and also easy and natural to use (Meta Ray-Ban glasses). They didn't find the sweetspot just yet, though 😅 ... ... which is great for us, we still have time to explore and try building stuff for today's devices, and this will prepare us for tomorrow's devices. Until Meta for Developers adds Romania as a supported country to their AI Glasses (Oscar Falmer 范思奥 any news on this? 🤞), I'm looking for ways to enable all their features (including moving to a supported country, like Spain) and build something cool for them, and I'll keep you posted. What's your opinion on wearables? Is it just a short trend, or something with potential? Comment below. #mobileappdevelopment #programming #visionpro #wearables #MetaAI
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Dan I. a distribuit aceastaTaking my code on stage + learnings from in-person developer events In the past 2 weeks I've: - organized an in-person meetup for Mobile Developers - spoken at iOSKonf about iOS Foundation Models vs. open-source LLMs Preparing for them took quite some time, so I'm feeling a bit behind with work and posting here 😬 but, as always, there's a trade-off, and I would surely make this trade again. The upside? Connecting in-person with like-minded developers is really special (and useful) 🤝 You can: - learn from their skills and workflows - share your own experience - chat about AI, app development trends, technologies - grab a drink and leave the technical part aside for a while I've heard this idea that "in a world where AI is everywhere on the internet, connections in real life will become more valuable", and I could also feel it now. So, cheers to more such events 🥂 Are you also going to in-person events? How do you like it? 👇 comment below and let me know if you have any questions about these events I've just attended. #programming #mobileappdevelopment #peoplewhocode #developerlife #coding
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Dan I. a distribuit aceastaMore than 80% of Mobile Apps out there can use this Architecture and scale with clean code as much as they need to. Here's more about it: During these 10+ years of building apps and leading app development teams, I've tried lots of architecture patterns. MVC, MVVM, (skipped MVP though 😁), MVI, VIPER for iOS, TCA at some point ... it was exciting to learn about them, and to realize how much there's still to discover after each try. Most apps I worked on weren't huge projects like the Instagram app, and also not side projects with 5-10 screens. They were usually Minimum Viable Products that wanted or needed to grow. In such cases, from my experience, a 3-layered architecture like Google recommends for Android is the sweetspot 👌 - Presentation - Domain - Data Then you break down each layer into sub-layers, like Views + ViewModels, or Repositories + Data Sources. It sounds easy in theory, but once you start coding, it's tempting to skip some steps 😅 to "make it work now, and fix it later". I'll be doing a short recap and a live demo of building an app with such an architecture tomorrow, during an in-person meetup. Link in the first comment. If everything goes well, we'll have it as an online session next month as well, but if you can, come tomorrow for the full live experience. And yes, we'll be coding with AI, and it should be fun. For any questions or things to add, comment below 👇 #mobileappdevelopment #programming #coding #softwaredevelopment #softwarearchitecture
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Dan I. a distribuit aceastaThis will be an exciting one! 🔥 Can't wait to speak at iOSKonf in Skopje in less than 2 weeks about Open-Source LLMs vs. Foundation Models on iOS 📲 #iosdevelopment #mobileappdevelopment #swiftDan I. a distribuit aceastaDan I. is ready. Are you? 👀 “Open-Source LLMs vs. Foundation Models on iOS: A Measured Comparison” A practical deep dive into shipping LLM features in two ways: Apple’s Foundation Models vs a Core ML-converted open-source LLM. We’ll build a tiny benchmarking app, integrate both engines, and compare real-world scenarios: reliability, latency, and more. 🤖 May 4-6 · Skopje 🇲🇰 🎟️ Grab your ticket: https://ioskonf.mk/tickets #iOSKonf #iOSDev #Swift #AI
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Dan I. a distribuit aceastaProgramming languages used in Mobile App Development: You probably know about some of them, but I though it's useful to have an overview / recap, so here it is: 1️⃣ 𝗦𝘄𝗶𝗳𝘁 - used for native iOS - also used to make apps for iPad, Mac, Vision Pro - tentative for Android with Skip.tools - it's my favorite language 2️⃣ 𝗞𝗼𝘁𝗹𝗶𝗻 - used for native Android - can be used on iOS too with Compose Multiplatform - also nice for backend with Spring / Ktor - equally as cool as Swift, in my opinion 3️⃣ 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 / 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁 - used in React Native (iOS & Android from the same codebase) - it's the foundation of Web development - also used in hybrid frameworks like Ionic, but I'd stay away from those 4️⃣ 𝗗𝗮𝗿𝘁 - used in Flutter (again iOS & Android 2 in 1) - not that popular outside Flutter, from what I know - it's a decent language, not my favorite, not terrible 📝 𝗢𝘁𝗵𝗲𝗿𝘀: • Java --> was used for Android in the beginning, but since 2019 people are using mostly Kotlin, and Google also recommends that. • Objective-C --> was used initially for iOS, but Swift is now the better option. • C# --> used in .NET Maui (again iOS & Android from the same codebase). Very popular for backend with .NET, I only used it briefly during University 💬 𝗪𝗵𝗮𝘁'𝘀 𝘆𝗼𝘂𝗿 𝗳𝗮𝘃𝗼𝗿𝗶𝘁𝗲? And are you using it often? #programming #mobileappdevelopment #coding #ios #android
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Dan I. a distribuit aceastaWhen building a fitness app with Flutter, sooner or later you’ll want to access Health Data, like: - steps - workouts - heart rate - sleep And then you're wondering: 𝘏𝘰𝘸 𝘋𝘖 𝘠𝘖𝘜 𝘢𝘤𝘤𝘦𝘴𝘴 𝘏𝘦𝘢𝘭𝘵𝘩 𝘥𝘢𝘵𝘢 𝘰𝘯 𝘣𝘰𝘵𝘩 𝘪𝘖𝘚 𝘢𝘯𝘥 𝘈𝘯𝘥𝘳𝘰𝘪𝘥? Since they each have their own APIs for it. Well, you have two main options: 1️⃣ Use an existing 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗽𝗹𝘂𝗴𝗶𝗻: There are a couple of libraries that wrap the native APIs: - HealthKit on iOS - Health Connect on Android This is usually the fastest way to get started, because such a plugin already handles permissions, data types, and platform differences for you. 𝗧𝗵𝗲 𝘁𝗿𝗮𝗱𝗲-𝗼𝗳𝗳: Plugins may not support every metric or new API feature, and sometimes you end up needing more control, which leads to: 2️⃣ Build your own 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Flutter makes this possible through Platform Channels. Something like: Flutter (Dart) 👇 Platform Channel 👇 Native code - Swift for HealthKit - Kotlin for Health Connect This means creating a small native 𝗯𝗿𝗶𝗱𝗴𝗲 𝗹𝗮𝘆𝗲𝗿 that talks to the platform APIs, and then calling it from Dart. It’s a bit more work upfront, but it gives you full control over: - the data you fetch - performance - how your app integrates with the health ecosystem For simple apps, a plugin is usually enough, but for more advanced apps, building this bridge layer can be worth it (or needed). Do you prefer plugins or platform channels for such integrations? #flutter #mobileappdevelopment #programming #coding
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Dan I. a distribuit aceastaI’m a Mobile Developer who spent 4 days last week at the Mobile World Congress in Barcelona, to see what the future of tech looks like, and... I think my definition of app development is changing. The place is huge, you've got companies like Google, Microsoft, and Samsung with massive booths, but also hundreds of startups from all over the world. Of course, the first things I looked for were devices and gadgets 📲 the latest smartphones, some folding in 3, laptops with flexible screens, VR headsets, and also more unique things like a smart mirror that analyzes your skin, or supercars. Also, everywhere I looked: robots! 🤖 Humanoid robots which made me question if the movie Terminator just became real. Among the keynotes and panels, my favorite one was about coding with AI for real, with examples, not for the vibes 💻 And then, there were the startups in the 4YFN area: - cybersecurity - data platforms - fitness tech plenty of small booths, but with big ideas. After 4 days at MWC, one thing became clear to me: Mobile development isn’t just about building apps for smartphones anymore. It’s also about building for connected devices, mixed-reality platforms, and whatever new interfaces come next 🥽 So if you’re a developer today, the real skill isn’t just knowing mobile. It’s learning how to build for the entire ecosystem around it. And honestly... that’s what makes this such an exciting time to be a developer 🧑💻 What's your take on this? Any questions? Comment below! #programming #coding #mwc26 #softwaredevelopment #mobileappdevelopment
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Dan I. a distribuit aceastaI saw a Mobile Developer coding today... Tab 1 - ChatGPT Tab 2 - Claude Tab 3 - Gemini He asked every Al the same question… and patiently waited for all the answers ⏳ Then, he pasted each response into a separate Tab Bar view in his app 📲 - 3 different views. - inspected all 3 on the simulator - picked the best one ...like a psychopath. It’s me 😅 That’s one way to test the coding capabilities of AI tools, but don’t stress too much about it, because at this point: - all of them are quite good, if you guide them well. - they can mess up if you want to "one-shot" an entire app or feature. 💬 Are you using an AI assistant, agent, or tool? Which one? If not, why not? #programming #coding #mobileappdevelopment #vibecoding #softwaredevelopment
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Dan I. a apreciat aceastaHow are you, people? Really. I’m tired. And from where I sit, others are too. I work 1:1 with people daily - ranging from mid-level professionals to executives. They all report the same concerns: high demand, low capacity and support to juggle with all the balls. Clients tell me at least once a week horror stories about how their companies decided to lay off people. Late night emails “Don’t come to work tomorrow, we’ll send you the papers.”, out-of-nowhere HR meetings and being logged out from devices - are just some examples. I’m sorry, but from a psychological (and human) standpoint - this is UNACCEPTABLE! Even some of the companies I worked with refuse to see the human side of reality, and focus on the surface-level strategies instead. (Kudos to those who care for their people!) And then, people come to sessions, workshops and they blame themselves for not being able to be on top of everything. Dear people, it should not all be on your shoulders. ❓ Can we start talking about these topics, instead of whatever the algorithms favor more? Please. I feel that I'm fighting beyond my power. Anyone else? Again: How are you? (Cristian Vîrciu 💻your post also encouraged this frustration out of me, thank you)
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Dan I. a reacționat la aceastaDan I. a reacționat la aceastaGenerate a professional update. Make it look spontaneous, but also like I've remembered personal branding exists. Include: - A sentence that could be wisdom - A sentence that could be a cry for help - A sentence that makes people wonder if I'm joking Optimise for: - Reach - Relatability - Not looking like I vanished into the woods Avoid: - "Excited to share" - "Quick update" - Claiming I’ve been "heads down" - Accidentally starting a newsletter Tone: - Slightly feral - Human Make no mistakes.
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Dan I. a apreciat aceastaDan I. a apreciat aceastaI went to Skopje to meet clients and potential partners face-to-face 👥 Misalignment in communication happens more often than we like to admit, especially in a world where almost everything runs online, and meeting in person has become the exception, not the rule. Emails are useful, of course. I rely on them every day, but they’re also one-dimensional. You don’t see reactions, you don’t feel the tone, and even simple topics can drag on through endless back-and-forth. When you actually sit down with someone, it’s different. You pick up on how they think and react, and without forcing it, you start adjusting how you communicate with them. That’s why my co-founder and I make it a point to visit our clients and partners during the year. Next month, we’re heading to Athens for exactly this reason 🙌🏼 If anyone from my network happens to be there toward the end of June, feel free to let me know, I’d be happy to grab a coffee and connect ☕️
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Dan I. a apreciat aceastaDan I. a apreciat aceastaVisiting Walgreens 2771 to pick Jessika’s brain on how she converts so many FitSkin scan to No7 purchase. First she always target the No7 and any skincare customers. Then, she takes the device with her when scoping out customers in different areas of the store. Jessika engages with all the customers, not just cosmetic customers. She even got me in the chair, did a scan and I walked out with a new product to try. Great job! #Fitskin #Walgreensbeauty
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Dan I. a apreciat aceastaDan I. a apreciat aceastaOh man I love my job At PyConUS 2026. Come say hi or ask me some technical questions/demos. Yay!!!
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Dan I. a apreciat aceastaDan I. a apreciat aceastaFoundation Models are more powerful than they first appear... and this is my favorite example in Xarra! When importing blog posts, code blocks can be a problem for audio. Raw syntax read aloud might not be the most helpful. But with Foundation Models, Xarra generates a context-aware, plain-language explanation of each code block. Something you can actually listen to on the go. In this example, a Swift snippet using the Digital Crown API gets transformed into a clear description of what the code does, its parameters, and why they matter. No jargon. No noise. Just meaning. That's the untapped potential of on-device AI: not just summarization, but genuine understanding that makes content more accessible. #FoundationModels #Xarra #IndieApp
Experiență
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Tech Content Creator
mobiledevlife
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Hewlett-Packard
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Studii
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Universitatea Tehnică din Cluj-Napoca
Master of Technology (M.Tech.) Computer Software Engineering
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Technical University of Cluj Napoca
Bachelor of Science (BS) Computer Science 10
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Activități și societăți:Participated to South Eastern European Mathematical Olympiad for University Students, Participated to Ariel Internet Mathematical Olympiad, Participated to the National Romanian Mathematical Olympiad for Students, Participated to the National Bulgarian Mathematical Olympiad for Students
I represented my university to different contests, where I managed to obtain a series of awards , most of them being Silver Medals and Bronze Medals. I also was the Valedictorian at graduation.
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Liceul Teoretic "Ion Agarbiceanu", Jibou
High School Mathematics and Computer Science 10
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Activități și societăți:Participated to the National Mathematical Olympiad and Mathematical Contests, Participated to the National Chemistry Olympiad and Chemistry Contests. I also was my class's valedictorian at graduation.
Licențe și atestări
Publicații
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Real Time Visualization of Crowd Dynamics Scenarios
Romanian Human-Computer Interaction Conference ( RoCHI ) 2015
This paper presents an approach to real-time simulation of crowd dynamics on GPU enabled computing architectures. We discuss challenges with parallelization of agent-based models, implementing parallel simulation algorithms, visualization and interaction with the simulated scene and, most importantly, ensuring communication and synchronization between all these processes. Our main objective was to provide interactive simulation of realistic models such as pedestrian dynamics, in which large…
This paper presents an approach to real-time simulation of crowd dynamics on GPU enabled computing architectures. We discuss challenges with parallelization of agent-based models, implementing parallel simulation algorithms, visualization and interaction with the simulated scene and, most importantly, ensuring communication and synchronization between all these processes. Our main objective was to provide interactive simulation of realistic models such as pedestrian dynamics, in which large crowds move and interact among themselves and with the environment. Simulation parameters like scene complexity, scene composition, as well as the number of agents are varied in order to simulate different scenarios and to assess the impact on the performance.
Alți autori -
Cursuri
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Computer Networks
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Databases
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Distributed Systems
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Fundamental Algorithms
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Object-Oriented Programming
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Operating Systems
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Proiecte
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Server Automation - Java Client
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Vizualizați proiectulHP Server Automation (SA) provides a fully automated IT environment. IT teams are able to work
together seamlessly, even if they are in different locations. All administrators have the same view
of the environment.
HPSA is used to bring entire server infrastructure (both physical and virtual) under one management to gain full visibility to all your servers and operations. It can handle multiple server management activities including provisioning on bare metal, software management…HP Server Automation (SA) provides a fully automated IT environment. IT teams are able to work
together seamlessly, even if they are in different locations. All administrators have the same view
of the environment.
HPSA is used to bring entire server infrastructure (both physical and virtual) under one management to gain full visibility to all your servers and operations. It can handle multiple server management activities including provisioning on bare metal, software management, patch management, audit remediation, security management,etc.
At the simplest level, an HP SA installation consists of:
• The HP SA core and its core components installed on a host server or servers
• A set of HP SA gateways (core, agent, management, satellite) that enable communications between
the HP SA core and the managed servers
• HP SA server agents installed on managed servers -
Server Automation - DCML Export Tool (DET)
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Vizualizați proiectulThe DCML Exchange Tool is a utility that enables users to export almost all server management
content from any HP SA core and import it into any other HP SA core.
Distincții și premii
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Purpose Excellence Award
Small Footprint
I won with my team the yearly Purpose Excellence Award, which is given for good results and continuous performance over the entire year.
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College Valedictorian
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I had the highest grade ranking among my graduating class.
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Ariel International Mathematics Contest - Silver Medal
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International team-based mathematics contest.
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Ariel International Mathematics Contest - Bronze Medal
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International team-based mathematics contest.
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National Bulgarian Mathematical Olympiad for Students - Silver Medal
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Mathematical Olympiad where I was part of the team that represented my university, being invited to compete against bulgarian students and other guests.
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South-Eastern Europe Mathematical Olympiad for University Students - Bronze Medal
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Mathematical Olympiad where I was part of the team that represented my university.There were many participants from the Balkan countries and the contest was held in Bulgaria.
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Ariel International Mathematics Contest - Bronze Medal
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International team-based mathematics contest.
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High School Valedictorian
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I had the highest grade ranking among my graduating class.
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National Mathematical Olympiad
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Qualified every year for the National Mathematical Olympiad, as a result of obtaining the 1st or the 2nd place at the county phase of the Olympiad.
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National Chemistry Olympiad
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Qualified twice for the National Chemistry Olympiad where I also got a distinction.
Limbi cunoscute
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English
Competență profesională de lucru
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French
Competență elementară
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Romanian
Competență de vorbitor nativ sau bilingv
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