Senior Frontend Engineer (Crypto)

Location: Remote from Poland, Argentina, Bulgaria, Chile, Colombia, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Mexico, Peru, Romania, Slovakia, Slovenia, or South Africa

Company

hirify.global is a crypto platform offering spot trading, margin, futures, staking, and OTC services for individual and institutional clients.

What you will do

• Design, develop, and maintain consumer-facing features across React web and React Native mobile applications.
• Own product work from discovery and technical design through release, monitoring, experimentation, and iteration.
• Develop A/B testing and experimentation strategies, analyze results, and iterate based on user behavior.
• Collaborate with Product, Design, Data, Platform, and Mobile Engineering teams on coherent consumer experiences.
• Make architectural and framework decisions while leading complex cross-platform initiatives.
• Mentor engineers and uphold standards for correctness, accessibility, performance, testability, and continuous improvement.

Requirements

• 6+ years of professional software development experience focused on consumer-facing web or mobile products.
• Deep expertise in TypeScript and the React ecosystem, including component architecture, state management, and data-fetching patterns.
• Production experience with React Native and cross-platform mobile development, including App Store and Google Play release pipelines.
• Experience with Next.js App Router, React Server Components, WebSockets or Server-Sent Events, feature flags, and experimentation frameworks.
• Experience with Jest, React Testing Library, Playwright or Cypress, modern build tooling, CI/CD pipelines, and performance profiling.
• Strong written and verbal English required. Experience in fintech, crypto, payments, or other high-trust consumer products is expected.

Nice to have

• Experience with React ecosystem tooling, React Server Components, concurrent features, and streaming.
• Hands-on use of Cursor, Claude Code, Copilot, or equivalent AI-assisted development tools with rigorous code ownership.

Culture & Benefits

• Remote work across the listed countries.
• Globally distributed, agile collaboration across engineering and product functions.
• AI tools are used throughout the software development lifecycle.
• Applications are accepted on an ongoing basis unless a specific deadline is stated.
• Qualified applicants with criminal histories are considered consistently with applicable requirements.

Hiring process

• Job-related skills or work-style assessments may be required.
• Assessment results are considered alongside experience and interviews.