Frontend Engineer (Vue.js Web + React Native / Expo Mobile)

Frontend Engineer (Vue.js Web + React Native / Expo Mobile)

• Salary: up to 4500 Euro (based on experience)
• Location: 100% remote from Serbia or Latvia
• Full-time
• Employment Type: B2B

Are you a passionate Senior Frontend Engineer? We are seeking a Senior Frontend Engineer to own and evolve Vue.js web applications and a React Native (Expo) mobile app for a real-time security operations product. This is an opportunity to build user-focused, high-impact applications and contribute to cutting-edge security technology.

Requirements

• 5+ years of professional frontend engineering experience.
• Strong production experience with Vue.js (Vue 3 preferred) for complex web applications.
• Proven experience shipping React Native (Expo) applications to iOS and Android.
• Proficiency in TypeScript, JavaScript, HTML, and CSS.
• Hands-on experience with real-time UI systems (WebSockets/SSE).
• Experience implementing and managing push notifications on mobile.
• Solid testing experience:
• Unit and component testing (Jest, Vitest, Testing Library or equivalent)
• E2E testing (Playwright for web; Detox or similar for mobile)
• Experience working from Figma designs and within a design system.
• Familiarity with frontend/mobile CI/CD pipelines and release processes.
• Strong communication skills, ownership mindset, and experience working in PR-based workflows.

Nice to have

• Experience with event-heavy or operational dashboards (security, monitoring, logistics, trading, etc.).
• Knowledge of offline support, local persistence, and data sync strategies for mobile.
• Experience with error monitoring and performance profiling tools (e.g., Sentry or similar).

Responsibilities

• Own and evolve two Vue.js web applications (Mission Control and Admin Console) and a React Native (Expo) mobile app.
• Build real-time operational UIs including live dashboards, alert feeds, and history/archive views.
• Design and maintain scalable frontend architecture (routing, state management, data fetching, performance).
• Develop and maintain mobile features for iOS and Android, including navigation and lifecycle handling.
• Implement end-to-end push notifications on mobile.
• Build resilient, event-driven UIs using WebSockets and/or SSE with proper reconnect and state-handling strategies.
• Ensure high-quality delivery through testing, code reviews, and collaboration with backend and product/design teams.
• Contribute to CI/CD and release workflows for both web and mobile applications.

Get to know DevsData

We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team. We employ people with experience in international corporations as well as the ones from the best technical and business universities.

Find out more: https://devsdata.com