Senior Node.js Engineer at HIGHLOAD SOLUTIONS [Payment Unit]
Kyiv, Ukraine
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Summary
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Senior
Sasha Zmiievets is a Senior Node.js Engineer with a decade of professional experience and 6+ years focused on building scalable REST APIs and microservices using Node.js, NestJS, and TypeScript. He has repeatedly led greenfield backend projects—designing clean architectures, optimizing PostgreSQL schemas and queries, and implementing robust auth and transaction workflows for payment systems with smart routing and retry logic. Comfortable across the stack, he contributes front-end improvements (notably to a real-world Vue.js boilerplate) and integrates diverse services from Kafka and RabbitMQ to Redis and multiple cloud providers. Sasha blends hands-on coding with mentorship and code review, applies clean-architecture principles (SOLID/DRY/KISS), and leverages AI-assisted tools for faster exploration and refactoring. Based in Kyiv, he also brings practical Linux server administration and CI/CD experience, making him a reliable engineer for end-to-end production systems.
❤️ Real world base Vue.js app. Access/refresh tokens auth, api services, http client, vuex modules
Role in this project:
Full-stack Developer
Contributions:155 commits, 34 PRs, 151 pushes in 4 years 11 months
Contributions summary:Sasha primarily focused on front-end development, enhancing the user interface and navigation of the Vue.js boilerplate. They implemented a router, added header and news components, and updated the application's layout by modifying the root layout and adding a footer. Furthermore, the user integrated features such as a login page, including UI elements like text input fields and a checkbox.
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