Лонги

Imagine: you are flying over the Atlantic, your product is still «raw», and in 48 hours you have a presentation to a key client. What should you do?

30-year-old Ukrainian Ilya Kostenko has created an AI algorithm that, according to the startuper, can read the minds of customers. Together with his wife Valeria in the USA, Ilya founded a startup that guesses the desires of customers with incredible conversion. His store FOX Nails USA sets trends in global e-commerce and works, according to Ilya, more efficiently than Amazon and changes the rules of the game in e-commerce. That is, now, according to the startuper, instead of the era of mass offers, an era of hyper-personalized commerce is coming, where each customer receives a unique experience adapted to his individual needs. We tell you how a Ukrainian startup in Texas became the first swallow of the revolution, showing that the «telepathy effect» in e-commerce is no longer fiction, but a technological reality of today.

The Notarial Chamber of Ukraine (NPU, not to be confused with the National Police) was the headliner of the day. In case anyone missed the news, this morning this body appealed to the Minister of Digital Transformation Mykhailo Fedorov and the Minister of Justice Herman Galushchenko to stand up for notarial secrecy and promptly stop testing the e-notary system.

Educational technology is rapidly changing approaches to learning around the world. The global EdTech market is growing steadily: it is predicted that by 2026 its volume will exceed $450 billion. The COVID-19 pandemic has accelerated the digitalization of education, and now the war in Ukraine is forcing us to look for new solutions for continuous online learning. According to research, employees in 2023 spent 5.6 times (461%) more time on advanced training than in 2022 — that is, the demand for new knowledge is growing explosively. Large EdTech companies already reach billions of people: the 150 most influential companies in the digital learning space collectively serve nearly 3 billion students and generate over $23 billion in annual revenue. To keep Ukrainian education up to date, it is worth following key global trends, many of which are just beginning to emerge in our country. Below are ten global EdTech trends that have the potential to be implemented in Ukraine in the near future.

The IT job market today is a real quest for candidates — you can try to get a job a hundred times, responding to vacancies, but not receive a single invitation, even for a preliminary interview. However, there are specialists that recruiters are on the contrary hunting for. dev.ua asked recruitment specialists which specialists they find most difficult to find and how they solve this problem.

In the world of cryptocurrency, security is more than a technical function. It is the main factor of trust, without which no exchange can develop. In 2024 alone, hackers stole more than $2 billion from crypto projects, according to Chainalysis. That is why major market players are investing millions in cyber security, creating user insurance funds and introducing new technologies to combat fraud.

Сьогодні зловмисники атакують не лише основні системи компаній, а й резервні копії. У кращому випадку бізнес залишається з «гарячим» бекапом, у гіршому — без жодного варіанту відновлення. Які стратегії справді працюють: незмінні копії, «холодні» сейфи з дисками чи їх поєднання? Ми поспілкувалися з інженерами компанії De Novo й з білими хакерами на цей рахунок. І вишенька на торті — хто бекапує бекап Google, і яким чином. 

Over the years of working with YouTube channels and helping hundreds of clients grow their channels, I've noticed one pattern: most beginners make the same mistakes. They post random videos without a clear strategy, constantly change topics in search of "the same" content, and believe that expensive equipment will automatically ensure the success of the channel. These mistakes cost months, and sometimes years, of wasted time. At 4Limes, we see every day how you can avoid these pitfalls and build your channel strategically from the start. In this article, I’ll share eight key principles that will dramatically change the way you approach channel creation and help you achieve results faster.

At the end of August, Denmark traditionally hosted the annual DALO Industry Days exhibition, the largest forum of arms manufacturers in Scandinavia. Among the Ukrainian companies participating was Dwarf Engineering, which recently presented the work of the Narsil autonomous control module for FPV drones. The company’s CEO Vladyslav Piotrovsky spoke about the Dwarf Engineering product, his impressions of the forum, and the problems of arms manufacturers in Europe on the sidelines of one of the dev.ua miltech events. Below is his direct speech.

The story of 19-year-old Maksym Tyulyukov from Mykolaiv is about a thirst for knowledge, uninvited cardinal changes in life due to the war, and a successful attempt to build an IT career while still in school. He is perhaps the youngest middleware developer that the dev.ua editorial team has ever heard of. His career in IT began at the age of 16. The fact is that Maksym is from Mykolaiv. And in the first 10 days of a full-scale war, he saw a column of tanks with Z-tanks in person, and realized that he had to leave. For the next six months, the guy and his family lived in Bulgaria, but due to hardship and moral exhaustion in a foreign country, they returned to Ukraine and settled in Odessa. Currently, Maksym is a student at the Odessa State University of Intellectual Technologies and Communications. He works at his dream company and ambitiously plans to move to San Francisco, found his own startup, and, of course, work for global tech giants. Today’s story is about the difficult but inspiring path of a young man who confidently steps towards his dream despite the war, forced relocations, and circumstances that arise unexpectedly. Next is a direct speech by Maksym, who at 19 is already a Middle Back-End Engineer at OBRIO.

Devops Engineer Yehor Fedorov decided to bring back children’s love of knowledge by developing the application  Vyvchay Prosto, in which school subjects are told in the format of short videos. The goal is to make learning interesting and children can get good grades without stress. This approach has already resonated with the target audience — students and parents. Almost 2,000 followers on Instagram are already waiting for the release of the application, which will take place this week.

Vyacheslav Mishalov is a Dnipro businessman who managed to get into local politics and become disappointed in this type of activity. He was a deputy of the Dnipro City Council, is a co-founder of one of the largest Internet providers, which has not yet become part of large telecom companies, such as Kyivstar, Vodafone Ukraine or lifecell. Vyacheslav is also well-versed in Internet business. He was once a co-founder of one of the largest Ukrainian portals i.ua, which was later sold to the UMH media holding. Now Mishalov owns a fairly large Internet media outlet — Informator.

Promising cryptocurrencies in 2025 are increasingly appearing not among the top assets, but in new niches. Instead of Bitcoin and Ethereum, investors are increasingly attracted to meme tokens, Telegram bots, Web3 solutions, and staking platforms. It is in these segments that growth potential currently remains, especially against the backdrop of a lull in the main market.

A new profession in IT — «cleaners» of generated AI code is gaining momentum not only in the world, but also in Ukraine. Many Ukrainian IT professionals are captioning themselves in their professional profiles as vibe code cleanup specialists. dev.ua talked to specialists who position themselves as vibe code cleanup specialists. Here’s what they say about their customers and the cost of their services.

Last week, Republican Senator Bernie Moreno introduced the Halting International Relocation of Employment (HIRE) Act. The bill would impose a tax on companies that hire foreign workers instead of U.S. citizens. India is already sounding the alarm, but what about Ukraine?

Loud hype or real tool? An implementation experience that cost the client $900 in one evening.

Artificial intelligence has contributed to the emergence of a new profession in IT. Experienced developers are retraining as vibe code cleanup specialists. The phenomenon is widespread. What will this lead to?

On the eve of the interview with dev.ua, employees of the local Internet provider Elite-Line were eliminating the consequences of the arrivals — in Kramatorsk they deal with this constantly. According to the director of the provider, Mykola Kucheruk, while their team was working on it, three KABs flew literally 500 meters from their office. The consequences of this arrival will also have to be resolved quickly, because some subscribers were again left without the Internet. Elite-Line specialists arrive at the destination in a few hours, having endured a pause: no one has canceled the tactic of repeated strikes against the Russians, so it is highly undesirable to leave immediately. In this regard, the Internet provider’s employees are exposed to the same risks as rescuers and medics arriving at the scene.

In modern eCommerce, personalization is no longer an optional option — it is becoming the main driver of growth. That is why more and more companies are implementing product recommendation technology. They help solve several important tasks at once: increase site conversion, increase the average check and use the marketing budget more effectively. McKinsey research shows that personalization allows businesses to reduce customer acquisition costs by up to 50%, increase revenue by 5–15% and increase ROI by 10–30%. According to Barilliance, up to 31% of online stores' revenue is generated precisely thanks to recommendation blocks.

Andrey Baranovich (Sean Townsend) is a white hat hacker whose operations are really making Russia’s asses burn. Since the 90s, he has been developing the VX Heavens portal, dedicated to the study of viruses. This project has existed for almost twenty years, and was visited monthly by 100K people from all over the world who are interested in a rather narrow topic. However, in 2012, the Ministry of Internal Affairs seized the project’s servers.

My name is Vlad Chukhrai, I am a project manager at the fintech company bill_line, and I doubt I will tell you anything new, but the main goal of every business is to earn more. Specific goals already begin with this general core goal. In the case of ecommerce, an important goal will be to maintain the maximum conversion rate and minimum basket drop. This goal is fully shared by all fintech companies without exception. Their goal is to ensure that as many payments as possible (preferably all) go through the most reliable and fastest path. The development of these paths is payment routing.

Український стартап DrukDim прагне перевернути будівельну галузь: його 3D-принтер для будинків може зводити житло всього за кілька днів. Співзасновник і CEO компанії Богдан Межинов розповідає, як виникла ідея друкувати будинки, на які труднощі команда натрапила на цьому шляху та що планує далі.

Danylo Ivzhenko, Project Manager at Norml Studio, has tried a huge number of AI tools, and assures that nothing better than Google AI Studio has yet been invented. «In fact, there simply is no worthy replacement for AI Studio. It is unique in its tasks,» the specialist claims. His approach is as follows: he takes a design from Figma, throws it into AI Studio, asks for a super-detailed description (down to colors and markup), and transfers it to the AI ​​code editor, from where he receives the finished code. The result is an almost perfect copy of the design from Figma in the form of working code. This way, Danylo saves precious hours and has the opportunity to test several variants of the desired solution at once.

During war, the availability of technology is not a luxury, but a necessity. Ground-based robotic complexes (GRCs) are increasingly performing evacuation and logistics on the battlefield: delivering equipment, transporting ammunition, evacuating the wounded. All this is without risk to soldiers, especially when conventional equipment is unsuitable. For example, as the soldiers of the Charter battalion showed, their GRC with a payload of 200–250 kg made it possible to avoid losses among personnel when delivering provisions to an area inaccessible to cars

Apple is gearing up for its Awe Dropping Fall Presentation today. And judging by insider information, it won’t just be «another year.» The company is promising «radical» changes to its flagship product for the first time since 2017. A slight price increase is expected for some models. The official broadcast will be on Apple.com, YouTube, and the Apple TV app at 8:00 PM Kyiv time. What to expect from the «apple giant» — below.

LeetCode-style problems once seemed effective. But in 2025, they are becoming less and less useful. AI tools and ready-made libraries make learning algorithms unnecessary. What really matters is how engineers think, design, and collaborate.

At the DOU Day Picnic event, a dev.ua journalist spoke with soldiers from the 1st Separate Medical Battalion, who are developing and improving a ground robotic complex for evacuating the wounded on their own. This is the 11th generation of the machine, which can travel up to 200 km, has the speed of an ATV, and has an armored capsule to protect the soldier.

The Verkhovna Rada of Ukraine has taken an important step towards regulating cryptocurrencies in Ukraine. Deputies supported the relevant bill in the first reading. The decision was adopted by 246 votes in favor, only one parliamentarian spoke against, and about thirty more abstained. This event immediately sparked a lively discussion in the expert community: for the first time in Ukrainian legislation, an attempt is being made to systematically describe the cryptocurrency market and its participants.

The Chief Technology Officer, registered on the LinkedIn social network under the name Illia Y, shared his thoughts on the role of Scrum Master, and his unsuccessful experience with collaboration.

The Father residential complex in Lviv , created according to the Riel Family Style concept, embodies the philosophy of happy urban planning, which aims to create an environment where every day is filled with comfort, inspiration, interesting moments and a sense of absolute security. For an IT specialist, whose world often revolves around screens and complex tasks, Father will be a place where you can find the perfect balance between high productivity and complete relaxation.