Senior ReactNative Engineer (Fintech)

TL;DR

Senior ReactNative Engineer (Fintech): Leading the development of complex React Native features for award-winning trading platforms across mobile and web with an accent on real-time financial data streams and high-frequency trading operations. Focus on architecting scalable cross-platform solutions, mentoring team members, and leveraging AI-assisted development tools to multiply impact.

Location: Hybrid (3 days onsite in Kraków, Poland)

Salary: starting from 17,000 PLN

Company

hirify.global is a publicly-traded FTSE250 FinTech company that provides mobile, web, and desktop platforms for trading stocks & shares, leveraged products, Futures & Options, and Crypto.

What you will do

• Lead the development of complex React Native features for trading platforms, ensuring optimal performance and user experience.
• Architect scalable cross-platform solutions to handle real-time financial data streams and high-frequency trading.
• Collaborate with cross-functional teams including backend engineers, designers, and product managers.
• Mentor junior developers and contribute to technical decision-making and mobile/web development standards.
• Drive cross-platform innovation, implementing cutting-edge technologies in the fintech landscape.
• Own end-to-end feature delivery, from technical design through deployment, ensuring performance and reliability.

Requirements

• 5+ years of React Native development experience delivering production mobile and/or web applications.
• Strong expertise in JavaScript/TypeScript, React hooks, Redux/Context API, and cross-platform development best practices.
• Experience with native mobile development (iOS/Android) and custom native modules.
• Solid understanding of React performance optimization, memory management, and efficient API integration.
• Experience with real-time data handling, WebSocket connections, and high-frequency data updates.
• Knowledge of CI/CD pipelines, automated testing frameworks, and deployment processes.
• AI-positive mindset, seeing AI tools as amplifiers of engineering capability.
• Strong English-language communication skills and ability to work in globally distributed teams.

Nice to have

• Familiarity with financial services or trading platforms.

Culture & Benefits

• Hybrid working model with 3 days in the office.
• Tailored development programs and mentoring opportunities.
• Extra time off for your Birthday (1 day) and voluntary work (2 days).
• Home office equipment reimbursement and a performance-related bonus.
• Private medical cover (Medicover) and Multikafeteria system.
• Life insurance (Generali) and Share Plans for Employees.
• Employee-led D&I networks and career-focused technical/leadership training.