I’m Ruslan Zholud, a Fullstack developer with 9 years of experience building secure, user-friendly web and API systems—especially in banking, cryptocurrency, and data management. I specialize in React/Next.js and Node.js (Nest/Express/Koa), and I enjoy working on complex product architectures that connect frontend, backend, and blockchain components. In recent roles, I’ve developed web3 applications and dapp experiences, built microservices on AWS, and collaborated on smart contract development and integrations. I also bring leadership experience from team and technical leadership responsibilities, with a strong focus on problem-solving, attention to detail, and delivering reliable features end-to-end.

Ruslan Zholud

I’m Ruslan Zholud, a Fullstack developer with 9 years of experience building secure, user-friendly web and API systems—especially in banking, cryptocurrency, and data management. I specialize in React/Next.js and Node.js (Nest/Express/Koa), and I enjoy working on complex product architectures that connect frontend, backend, and blockchain components. In recent roles, I’ve developed web3 applications and dapp experiences, built microservices on AWS, and collaborated on smart contract development and integrations. I also bring leadership experience from team and technical leadership responsibilities, with a strong focus on problem-solving, attention to detail, and delivering reliable features end-to-end.

Available to hire

I’m Ruslan Zholud, a Fullstack developer with 9 years of experience building secure, user-friendly web and API systems—especially in banking, cryptocurrency, and data management. I specialize in React/Next.js and Node.js (Nest/Express/Koa), and I enjoy working on complex product architectures that connect frontend, backend, and blockchain components.

In recent roles, I’ve developed web3 applications and dapp experiences, built microservices on AWS, and collaborated on smart contract development and integrations. I also bring leadership experience from team and technical leadership responsibilities, with a strong focus on problem-solving, attention to detail, and delivering reliable features end-to-end.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Ukrainian
Fluent
English
Advanced

Work Experience

Full Stack Developer at X O OB
March 1, 2024 - April 1, 2026
Web3 Telegram application and dApp Next.js application. Full-stack development: API and UI, integrating and editing smart contracts. Microservices, AWS (CloudTrail, S3, CloudWatch, Cognito, Lambda).
Full Stack Developer at Crypto Wallet
July 1, 2022 - February 1, 2024
Crypto wallet/exchange: React web and React Native apps with a microservices backend. Designed frontend architecture; extended API with features including analytics, user data endpoints, exchange creation/estimation, and swap operations.
Team Lead at Calido
May 1, 2021 - July 31, 2022
Led a team of 4 developers (junior to middle levels) and designed the application architecture for a project management tool with paid subscriptions. Built and extended backend APIs including Stripe integration, Jira integration, and CSV parsing features. Developed major parts of the frontend and implemented multiple PM-focused views such as Kanban, Gantt/calendar, grid-based tables, and detailed panel views.
Team Leader at Calido
May 1, 2021 - July 1, 2022
Project management tool with paid subscription; multi-view UI for project managers; grid, Kanban, Gantt calendar, and detailed panels.
Full Stack Developer at MobiDev
July 1, 2020 - May 1, 2021
Multiple projects; frontend and backend development; API creation for mobile game; refactoring frontend for accessibility for a US bank; MVPs for banking and medical clients.
Full Stack Developer at Avan tiz e
September 1, 2019 - July 31, 2020
Developed several projects as a frontend/full-stack developer, including building APIs and frontends for a collection agency and creating an admin panel for user management in a mobile application. Worked with React, Express, Redux, material-ui, axios, and data storage such as MongoDB and PostgreSQL.
Full Stack Developer at A van tiz e
September 1, 2019 - July 1, 2020
Outsource company; worked on several projects as frontend/backend developer; built APIs and admin panels for various clients.
Full Stack Developer at EPA M
November 1, 2018 - September 30, 2019
Created user interfaces for form filling and form creation workflows. Developed an internal test portal as an internal company service, focusing on UI and core application functionality using React and Express with Redux.
Full Stack Developer at EPAM
November 1, 2018 - September 1, 2019
Created user interfaces for form filling; developed a test portal; internal company service.
Freelance Full Stack Developer at Freelance
November 1, 2017 - November 30, 2019
Created websites for various businesses using OpenCart and WordPress, and led a small team for a well-known Ukrainian apple shop. Worked on multiple client-facing web implementations and supported frontend development with PHP and jQuery along with SCSS styling.
Full Stack Developer at Freelance
November 1, 2017 - November 1, 2019
Various frontend/backend projects for banking, medical, and other clients; built APIs and full-stack MVPs.

Education

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Qualifications

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Industry Experience

Software & Internet, Financial Services, Gaming, Healthcare, Other