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Skills

  • App Development
  • Financial Services
  • JavaScript
  • Software Development
  • Altcoin
  • API
  • API Development
  • Apple Development
  • Artificial Intelligence
  • Automation Engineering
  • Back End Development
  • Bitcoin
  • Blockchain
  • Chatbots
  • Client Development

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Services

  • Full-Stack Developer | Expert in Web

    $20/hr Starting at $100 Ongoing

    Dedicated Resource

    Hi, I'm Andry, a passionate Full-Stack Developer with over a decade of experience delivering high-performance web applications, scalable blockchain solutions, and custom software.  With a deep background...

    API DevelopmentApp DevelopmentBack End DevelopmentCommunications TechnologyDesign
  • Blockchain | Dapp & Smart Contract

    $30/hr Starting at $100 Ongoing

    Dedicated Resource

    Hello! I’m Andry, a skilled Blockchain Developer with years of experience building decentralized applications (DApps), creating smart contracts, and providing blockchain solutions tailored to your business...

    AltcoinApp DevelopmentBitcoinBlockchainClient Development
  • AI Developer | Custom AI Solutions

    $40/hr Starting at $120 Ongoing

    Dedicated Resource

    Hi, I’m Andry, an experienced AI Developer with a strong background in building advanced machine learning models, AI-driven solutions, and custom chatbots.  I specialize in harnessing the power of AI...

    APIApple DevelopmentArtificial IntelligenceAutomation EngineeringChatbots

About

I deliver innovative, secure, and scalable AI, Blockchain, and Full-Stack solutions tailored to your business needs—driving efficiency, growth, and success through technology.

Hello, I’m Oleksii, a passionate and dedicated developer specializing in AI, Blockchain, and Full-Stack web development. I’ve always been fascinated by technology’s potential to transform businesses and drive innovation, which is what led me to pursue a career in software development. With over 8 years of experience, I’ve built a diverse portfolio of projects, from decentralized applications (DApps) and smart contracts to machine learning models and custom web applications.

I hold a Bachelor of Computer Science from Taras Shevchenko National University of Kyiv, which laid a solid foundation for my career. My journey began with traditional web development, mastering both front-end (React, Angular, Vue) and back-end technologies (Node.js, PHP, Python). However, I quickly gravitated towards cutting-edge technologies like Blockchain and AI, areas where I saw the most potential for real-world impact.

One of the highlights of my career has been working on decentralized applications and creating secure, efficient smart contracts for blockchain platforms like Ethereum and Solana. I’ve helped launch cryptocurrency tokens, developed NFT platforms, and built DeFi solutions like staking and liquidity pools. My AI projects have been equally exciting, ranging from intelligent chatbots with natural language processing (NLP) to machine learning models that drive business automation and data-driven decision-making.

What truly motivates me is solving complex problems and building solutions that not only work well but also create real value for my clients. I’m a firm believer in continuous learning and growth, which is why I’m always exploring new technologies and methodologies to improve my work. My approach to development is client-centered; I believe in clear communication, agility, and delivering high-quality results on time.

When I’m not coding, I enjoy staying active with outdoor sports, keeping my mind sharp with chess, and tinkering with new programming frameworks in my spare time. I’m also an avid reader, especially of tech blogs and books on AI and blockchain developments.

I value integrity, creativity, and a strong work ethic. These values shape the way I approach every project, ensuring that I deliver not just a product, but a solution that my clients can rely on. Whether I’m working on a small website or a large-scale blockchain solution, I bring the same level of dedication, professionalism, and passion to my work.

Work Terms

Hours of Operation:
I am available Monday through Friday, 9 AM to 6 PM (CET), with flexibility for urgent project needs or deadlines.

Payment Terms:
I prefer milestone-based payments for transparency and project progression. Payments can be made via Guru's safe payment system. Larger projects will require an upfront deposit of 25% before work begins.

Communication Style:
I value clear and frequent communication. I am available for updates through Guru messaging, email, and video calls (Zoom or Google Meet). I provide regular progress reports and am open to feedback throughout the development process to ensure that the project stays aligned with your goals.