Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi! I'm Oleksandr, a passionate Backend Engineer with extensive experience in TypeScript, Node.js, and Python. I've had the opportunity to lead projects that integrate blockchain technologies and develop scalable backend systems, which have significantly improved performance and enhanced security. I thrive on solving complex problems, collaborating with diverse teams, and continuously learning new skills to drive innovative solutions. I'm eager to leverage my expertise to contribute to impactful projects and optimize backend architectures.…Hi! I'm Oleksandr, a passionate Backend Engineer with extensive experience in TypeScript, Node.js, and Python. I've had the opportunity to lead projects that integrate blockchain technologies and develop scalable backend systems, which have significantly improved performance and enhanced security. I thrive on solving complex problems, collaborating with diverse teams, and continuously learning new skills to drive innovative solutions. I'm eager to leverage my expertise to contribute to impactful projects and optimize backend architectures.

Oleksandr Vorobiov

Back-End Developer, Blockchain Developer, Game Developer, +2





Hi! I'm Oleksandr, a passionate Backend Engineer with extensive experience in TypeScript, Node.js, and Python. I've had the opportunity to lead projects that integrate blockchain technologies and develop scalable backend systems, which have significantly improved performance and enhanced security. I thrive on solving complex problems, collaborating with diverse teams, and continuously learning new skills to drive innovative solutions. I'm eager to leverage my expertise to contribute to impactful projects and optimize backend architectures.…Hi! I'm Oleksandr, a passionate Backend Engineer with extensive experience in TypeScript, Node.js, and Python. I've had the opportunity to lead projects that integrate blockchain technologies and develop scalable backend systems, which have significantly improved performance and enhanced security. I thrive on solving complex problems, collaborating with diverse teams, and continuously learning new skills to drive innovative solutions. I'm eager to leverage my expertise to contribute to impactful projects and optimize backend architectures.

Available to hire

Hi! I’m Oleksandr, a passionate Backend Engineer with extensive experience in TypeScript, Node.js, and Python. I’ve had the opportunity to lead projects that integrate blockchain technologies and develop scalable backend systems, which have significantly improved performance and enhanced security.

I thrive on solving complex problems, collaborating with diverse teams, and continuously learning new skills to drive innovative solutions. I’m eager to leverage my expertise to contribute to impactful projects and optimize backend architectures.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Ukrainian

Fluent

Russian

Fluent

Work Experience

Senior Software Engineer at Ultron Fundation

June 30, 2025 - July 18, 2025

Led development and integration of blockchain infrastructure for secure and scalable DeFi products and digital assets platform. Designed and implemented robust backend solutions using Node.js and TypeScript, improving system reliability and blockchain data processing. Developed and maintained smart contract integrations to support transparent transactions and new token features. Collaborated with blockchain architects, frontend developers, and QA teams to deliver solutions and rapid feature releases. Optimized backend services to increase transaction throughput by 30% and reduce latency. Applied cryptographic best practices to safeguard digital assets and sensitive user data, enhancing security and user trust. Proactively monitored system health ensuring continuous availability and high performance.

Game Developer at SoloWay Tech

December 31, 2023 - July 18, 2025

Developed 2D and 3D video games for PC and mobile using Unity 3D and Phaser.js. Applied debugging techniques with Chai and Jest to improve game stability and performance. Collaborated with designers, artists, and testers to ensure quality product delivery. Optimized loading times and game performance to enhance user experience. Created game-related tools and scripts to facilitate the development process.

Staff Software Engineer/CTO at Business Ecosystem Engineering (BEE)

December 31, 2023 - July 18, 2025

Designed and developed scalable backend systems using Node.js, TypeScript, and cloud infrastructure. Integrated third-party APIs and enterprise systems for seamless data exchange and automation. Optimized databases (PostgreSQL, MongoDB) and caching strategies to reduce response times and improve reliability. Collaborated with cross-functional teams to deliver customer-focused solutions. Ensured security, data privacy, and regulatory compliance. Led code reviews, mentored developers, and established quality guidelines. Improved backend service efficiency and stability by 25%. Contributed to architecture of business analytics tools for real-time client insights.

Senior Software Engineer at Applicature

December 31, 2020 - July 18, 2025

Led blockchain technology integration into backend systems with Node.js and TypeScript for secure and transparent transactions. Developed scalable backend solutions, improving transaction processing speeds by 40%. Applied cryptographic methods to protect sensitive data while ensuring compliance. Collaborated with frontend and blockchain teams for smooth system integration. Debugged and optimized backend infrastructure, reducing processing time by 30% and enhancing system efficiency.

Senior Software Engineer at BvBLogic

December 31, 2017 - July 18, 2025

Designed, coded, tested, debugged, and documented programs using agile practices. Participated in backend architecture and implementation using Node.js, Go, and Python. Collaborated with development and testing teams to create robust solutions meeting client requirements. Modernized legacy codebases to current standards. Integrated third-party tools to add features and reduce development times. Evaluated technical solutions to align with project goals. Estimated work hours and tracked progress within Scrum methodology.