Oleksandr Yaskulskyi

Mobile Developer • Backend Engineer • Frontend Developer • Khmelnytskyi, Khmelnytskyi Oblast, UA

React Native

Android

iOS

Mobile Development

Flutter

React

Next.js

Blockchain

Solidity

Smart Contracts

Web3

Full Stack Development

Bootstrap

Front-End Development

Swift

Kotlin

XCode

Backend Development

Node.js

Firebase

Android Studio

Dart

TypeScript

Web Development

Javascript

MongoDB

MySQL

Express.js

Available for hire fromNegotiable

Full-Time Roles

Contracts

Senior Mobile App(iOS, Android) and Server Backend Developer

Dedicated and efficient mobile app and server backend developer with over 7 years of experience in designing, implementing, and maintaining mobile applications and server-side technologies. Expert in crafting scalable and performant applications using a variety of frameworks and languages, including React Native, Swift, Kotlin, Node.js, and Python. Proficient in developing robust APIs, managing server infrastructure, and integrating various cloud services and databases to provide seamless user experiences across iOS and Android platforms. Committed to leveraging modern development practices and tools to drive innovation and achieve business objectives.

Projects

beU Delivery

I have built this app using React native

Fitness App For Women

I have built this app using React native Expo

Culture Trip: Book Travel

I have built this app using React native

Fitafy : Fitness Dating

I have built this app using Flutter

Nuka

As a senior frontend developer at nuka.me, I utilized React and various animation libraries to create captivating and interactive experiences on the website. My focus was on implementing complex animations that enhanced user engagement and delivered a visually stunning interface. Tech Stacks: React, Redux, GSAP, Lottie, Material UI, Typescript See More

Music and Finance

Clouty is a platform that hosts live bets about the latest releases and predictions in music. I did the whole process for building the MVP - helped Clouty to pick the right features to build, for the first release of the application, design UI and UX, and implement the entire platform. See More

Quandary Consulting Group

As your technology consultants, they help you automate away the stress of trying to scale a growing business. Leveraging powerful low-code platforms like Quickbase, Pipefy, and Workato, they build the custom integrations and applications you need at a fraction of the cost (and much faster) than traditional software development. As a Senior Web Developer and Migration Specialist at Quandary Consulting Group, I played a pivotal role in transforming our clients' online presence and enhancing their digital capabilities. My responsibilities encompassed a diverse range of tasks and technical expertise to ensure a seamless transition from a legacy CMS to a modern, high-performance web ecosystem. I led the comprehensive migration of our clients' website from a legacy WordPress CMS to a cutting-edge React Headless CMS. This involved meticulous planning, data transfer, and ensuring that all existing content seamlessly transitioned to the new platform. Leveraging my proficiency in tools like Next.js and Gatsby.js, I adopted a Static Site Generator approach to build the new website. This allowed for faster loading times, improved site reliability, and enhanced security. I ensured that the new CMS empowered our clients to easily manage and update their content without technical expertise. This involved designing intuitive interfaces and providing training to ensure a smooth content management experience. My proficiency in React, Next.js, Gatsby.js, Progressive Web App (PWA) development, and SEO optimization was instrumental in achieving the project's technical goals and exceeding client expectations. See More

Work History

Senior Mobile App Developer

Karlmax BerlinSep 2022 - Nov 2023 • 1 yr 3 mos-Led the development of mobile applications using Flutter and React native. -Worked closely with UX/UI designers to create intuitive and visually appealing mobile interfaces. -Integrated third-party APIs and libraries to enhance app functionality. -Conducted thorough testing and debugging to ensure app stability and performance. -Collaborated with project managers to prioritize tasks and meet project milestones. -Participated in agile development processes, including daily stand-ups and sprint planning.

Web & Blockchain Lead developer

Miles TechnologiesMar 2019 - Jul 2022 • 3 yrs 5 mos-Developed smart contracts on Ethereum and Hyperledger Fabric networks, utilizing programming languages such as Solidity and Go. -Designed and developed decentralized applications (dApps) on various blockchain platforms, including EOS and TRON. -Implemented blockchain-based identity verification systems for financial institutions, utilizing zero-knowledge proofs and other privacy-enhancing technologies.

Web & Mobile App Developer

Capermint TechnologiesAug 2016 - Oct 2018 • 2 yrs 3 mos-Developed responsive websites using HTML, CSS, JavaScript, and various web development frameworks such as React and Angular. -Designed and developed mobile applications for iOS and Android platforms using Flutter, React native, Swift, Java, and Kotlin programming languages -Conducted thorough testing and debugging to ensure website and mobile app compatibility across multiple devices and platforms. -Integrated third-party APIs and SDKs, such as Google Maps and Firebase, into mobile applications, resulting in improved functionality and user experience.

Web Developer

MWDN KyivApr 2014 - Aug 2016 • 2 yrs 5 mos-Developed and maintained responsive websites using HTML, CSS, JavaScript, and various web development frameworks such as React and Vue.js -Designed and implemented custom CMS solutions using WordPress and Drupal, resulting in improved content management efficiency for clients. -Collaborated with designers and stakeholders to ensure website design and functionality met project requirements and user needs. -Developed and maintained e-commerce websites, integrating payment gateways and optimizing checkout processes to increase online sales.

Education

Taras Shevchenko National University of Kyiv

Bachelor of Computer Science2008 - 2012

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