Senior Mobile Engineer (React Native)

TL;DR

Senior Mobile Engineer (React Native): Building and optimizing core mobile app architecture and features for document creation, viewing, and signing, with an accent on performance, scalability, and security. Focus on contributing to modular app architecture, managing OTA updates, and ensuring system reliability from design to rollout.

Location: Remote-first, with options for hybrid work from offices in Kyiv, Warsaw, and Lisbon. Remote candidates must be based in Poland, Portugal, Ukraine, or other European countries and align with EU time zones.

Company

hirify.global is a fast-growing company that provides a document workflow automation platform, helping teams create, send, track, and e-sign proposals and contracts, with over $100 million in annual recurring revenue.

What you will do

• Deliver high-quality, production-ready mobile features from design to rollout.
• Build features for document creation, viewing, signing, and management optimized for mobile.
• Contribute to mobile app architecture, modularization, and creation of reusable components.
• Manage over-the-air (OTA) updates and participate in App Store/Google Play release processes.
• Proactively identify risks, troubleshoot production issues, and monitor system performance.
• Collaborate with product managers, designers, and engineers on technical solutions.

Requirements

• 5+ years of hands-on mobile development experience, ideally in React Native.
• Strong expertise with Redux Toolkit and Redux Saga for state management.
• Solid TypeScript experience in large-scale React Native applications.
• Strong knowledge of mobile platforms, cross-platform frameworks, performance optimization, and debugging.
• Experience working with native modules and comfortable debugging native crashes (iOS/Android).
• Proven ability to deliver features independently from design to production.

Nice to have

• Experience with CodePush or similar OTA update platforms.
• Familiarity with Fastlane or mobile deployment automation tools.
• Understanding of mobile security best practices.
• Experience with PDF/document processing libraries.
• Experience migrating large codebases between major React Native versions.

Culture & Benefits

• Remote-first approach with hybrid options in Kyiv, Warsaw, and Lisbon offices.
• Flexible employment (contract, employment of record, B2B arrangements) with benefits varying by location.
• Work schedule aligned with EU time zones.
• Honest, open culture valuing constructive feedback.
• Professional and personal development within a collaborative, supportive team.
• Stable, growing SaaS product offering an agile environment and strong technical challenges.