Paweł Szydło

Senior Frontend Engineer & Team Lead based in Kraków, Poland.

I build React and TypeScript products with a focus on frontend architecture, maintainability, performance, and product-quality user experience. My recent work has been centered around crypto wallets, browser extensions, React Native mobile apps, blockchain integrations, and security-sensitive wallet UX.

Currently at Synthetify Labs, where I lead frontend development for product applications and a public browser extension used by approximately 300k users. I coordinate a team of 6 developers across multiple product workstreams, support planning and code review, mentor engineers, and work closely with product and design on implementation direction.

LinkedIn · GitHub · Email

What I Work On

• Frontend architecture for React and TypeScript applications
• Browser extension development for Chrome and Firefox
• React Native mobile applications for iOS and Android
• Web3 wallets, asset management, transaction flows, and dApp integrations
• UI refactoring, performance improvements, and maintainable component systems
• Team leadership, mentoring, planning, code review, and delivery coordination

Tech Stack

Frontend

Apps, Platforms & Tooling

Web3

Testing & AI-Assisted Work

Featured Projects

Nightly Extension

Public Chrome and Firefox browser extension for cryptocurrency wallet management, assets, transactions, and blockchain integrations.

• Led redesign work, new integrations, implementation priorities, and product-facing technical decisions
• Balanced usability, security-sensitive UX, maintainability, and browser-extension platform constraints

Tech:

Nightly Mobile

Public Android and iOS cryptocurrency wallet for asset management and multichain usage.

• Coordinated development work, testing, release readiness, and implementation decisions
• Worked across mobile wallet UX, product behavior, and multichain integration needs

Tech:

Synthetify

Frontend application for synthetic crypto asset borrowing and leverage flows.

• Implemented product flows for borrowing and leverage
• Worked on frontend delivery during the early product phase

Tech:

Experience

Senior Frontend Engineer & Team Lead
Synthetify Labs · Sept 2021 - Present · Kraków, Poland

• Lead frontend development for product applications and a browser extension used by approximately 300k users
• Coordinate a team of 6 developers across three concurrent product workstreams
• Own planning, task breakdown, code review, mentoring, and frontend technical support
• Drove a frontend refactor covering architecture, UI structure, performance, and maintainability
• Collaborate with product and design on UI direction, product behavior, integrations, and partner support

Education & Publications

M.Sc. in Computer Science
Cracow University of Technology, Faculty of Computer Science and Telecommunication

• Characteristics of price related fluctuations in non-fungible token (NFT) market. Chaos, 2024. DOI: 10.1063/5.0185306
• Correlations versus noise in the NFT market. Chaos, 2024. DOI: 10.1063/5.0214399

Languages

• Polish: Native
• English: B2

Contact

I am open to remote, hybrid, or on-site opportunities in Kraków.

• LinkedIn: linkedin.com/in/pawelszydlo
• Email: [email protected]