Open to opportunities

Mark Bartalos

@markbartalos

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Full-stack software engineer with blockchain focus⛓️‍💥

Slovakia

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What I'm looking for

Remote full-stack or blockchain engineering roles where I can grow, take on technical challenges, and work with modern technologies.

Full-Stack Software Engineer with 3+ years of professional experience and 5+ years of hands-on software development experience. Experienced in developing web applications across the full stack, with academic and project experience in AI, large-scale data processing, and blockchain technologies. Specialized in React and Next.js, with back-end experience in .NET, Node.js and Rust.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Engineer

Current

Dorps.sk

Mar 2025 - Present (1 year 3 months)

Developed and extended web applications and implemented/maintained RESTful APIs for ongoing product needs.

.NET Angular Next.js RESTful APIs Web Application Development API Development Frontend Development

Front-end (Blockchain) Engineer

Faculty of Informatics and Information Technologies - DEUSS Project

Jan 2026 - Jun 2026 (5 months)

• Implemented a UI for on-chain bond transfers with extra KYC validation
• Implemented visualization and management functionality for on-chain orderbook
• Migrated the frontend between major contract/ indexer releases

React Tanstack Query TanStack Router GraphQL Viem Ethereum

Front-end (Blockchain) Engineer

Decenzio

Nov 2025 - Jun 2026 (7 months)

Built and maintained front-end blockchain functionality, written end-to-end tests for local XCM asset transfers and performance improvements to a 3D rendering pipeline.

React Playwright Polkadot Local Testnet XCM Asset Transfers 3D Rendering End To End Testing Performance Optimization

Full Stack Engineer and Scrum Master

Faculty of Informatics and Information Technologies

Sep 2024 - May 2025 (8 months)

I served as a Scrum Master and a Full-Stack developer for a team of 7. We were responsible for building an application during two semesters at our university for viewing and organizing high detail histopathology scans and developing a platforms for students of medicine to empower the future generation of doctors in Slovakia.

Angular .NET Core Duende Identity Server Angular Material Docker

Full-Stack Software Engineer

2Ring

Jun 2022 - Sep 2024 (2 years 3 months)

I was a Junior Full-Stack Engineer and together with my team we were responsible for developing and rewriting the company's main product, a complex dashboard software for call centers using Cisco technology.

Vue.Js MS SQL Server Rust Node Aurelia