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Schedule Interview NowMy name is Roman L. and I have over 1 years of experience in the tech industry. I specialize in the following technologies: React, Angular, vue.js, JavaScript, TypeScript, etc.. I hold a degree in Bachelor's degree. Some of the notable projects I’ve worked on include: hellotax, Conectar. I am based in Uzhhorod, Ukraine. I've successfully completed 2 projects while developing at Softaims.
I specialize in architecting and developing scalable, distributed systems that handle high demands and complex information flows. My focus is on building fault-tolerant infrastructure using modern cloud practices and modular patterns. I excel at diagnosing and resolving intricate concurrency and scaling issues across large platforms.
Collaboration is central to my success; I enjoy working with fellow technical experts and product managers to define clear technical roadmaps. This structured approach allows the team at Softaims to consistently deliver high-availability solutions that can easily adapt to exponential growth.
I maintain a proactive approach to security and performance, treating them as integral components of the design process, not as afterthoughts. My ultimate goal is to build the foundational technology that powers client success and innovation.
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SoftServe
"hellotax" is a VAT compliance automation software tailored towards multi-channel traders across Europe. The company already had a functioning web app but needed a professional to create an entirely new experience with the latest technologies to leverage speed and provide an optimal user experience as their customers were increasing. At the core of the product is data, so there was a lot of data transformation and manipulation involved, and they needed to make that process as fast as possible. With this information in mind, I examined the existing platform and started documenting flaws and identifying strategies to tackle them. I bootstrapped the project, and within a few weeks, the designated MVP, which included a partial component library optimized for accessibility, was ready. Usually, systems that require loads of data manipulation and all sorts of computations settle to perform these operations server-side. But since we were dealing with really huge data (reaching megabytes at times), the round-trip time (RTT) was in high numbers, which resulted in delayed updates. To tackle this, I had to implement a lot of the processing and manipulating logic on the frontend, leaving special computation work and business logic for the backend. Now it's easy to go wrong and pollute data in these computations, which made it clear that we needed solid assertion mechanisms, so I created a bunch of fail-safe, optimized, yet accurate data diffing and transformation work to preserve the integrity of the information displayed and minimize runtime errors and unusability. After nine months of work, we were finally ready to go live, and the beta version was launched. It not only met but exceeded the expectations and beat the previous version at speed, accessibility, and reliability.
Conectar is an e-learning platform that connects people looking to learn English to professional native English speakers. We had to bring the entire classroom experience to the web and make it feel as immersive as possible. To achieve that, we needed to build multiple apps into the system, like comms (video, audio, messaging), a scheduling system (for appointments), etc., so I joined the company as a frontend engineer to build these products. User experience was quite critical for a learning platform, so I got a professional to whip up a new identity and mockups, draft a proposal, and based on that, I built the design system and a brand new marketing site following those guidelines. I designed all the UIs on the dashboard, integrating REST APIs, and built the front-end of major apps from the ground up, like the messaging system, which was based off of the API from our Rails backend. It was quite challenging to integrate all these features while keeping an eye out for performance and usability. There were back-and-forths, but eventually it was stable and had a bunch of the core features of Facebook Messenger, which was really beautiful. I also worked with a colleague to build an appointment scheduling system for the product, then went ahead to work on the classroom app, which had lots of interesting features like a customizable real-time whiteboard built totally from scratch, video and audio comms and other tools to facilitate seamless tutor-student interaction. The project was huge and housed hundreds of thousands of lines of code powered by multiple technologies like Ract, Rails, Sass, Redux, Webpacker, GoLang, Java, etc., and we often had to re-evaluate strategies regarding certain topics like state management, performance, and development workflow. I was able to work across different segments, from design to DevOps to strategy and implementation.
Bachelor's degree in Computer science
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