Senior Mobile Full Stack Engineer (React Native, Node.js)

About the Position

Varyence is seeking a Senior Mobile Full Stack Engineer with expertise in React Native and Node.js. This role focuses on supporting and improving mobile applications and backend systems. The ideal candidate will have over 4 years of experience and strong problem-solving skills.

Responsibilities8

• Investigate, troubleshoot, and resolve complex technical issues in production and staging environments.
• Continuously monitor application logs and performance metrics using Google Cloud tools and Sentry.
• Identify and fix bugs in backend and mobile applications.
• Maintain and improve existing services and APIs built with Node.js and PostgreSQL.
• Collaborate with development teams to ensure smooth deployment and feature stability.
• Write clean, maintainable fixes and ensure code quality through reviews and testing.
• Handle mobile-related integrations, including In-App Purchases (IAP) and third-party services.
• Create and update technical documentation related to incidents, fixes, and system improvements.

Requirements10

• 4+ years of experience as a Full Stack Engineer.
• Strong hands-on experience with Node.js, React Native, and PostgreSQL.
• Proficiency with React Query and Redux Saga for state and data management.
• Experience implementing and maintaining In-App Purchases (IAP).
• Practical experience with Google Cloud Platform (GCP): deployment, monitoring, debugging.
• Solid understanding of RESTful APIs and modern web/mobile architecture.
• Familiarity with Git, CI/CD pipelines, and debugging tools.
• Strong analytical and problem-solving skills.
• Ability to work independently and manage time effectively.
• English: Upper-Intermediate or higher (written and spoken).

Benefits14

• Stable working environment where you can develop and grow your skills.
• Career opportunities within a multi-national company.
• Competitive compensation based on market data and expertise.
• A supportive team that values your input and suggestions.
• Health insurance coverage including dentist services.
• Cool comfortable office in the Lviv city center with facilities such as company paid lunches and lounge rooms.
• Annual paid days off (vacation, sick leaves) and state holidays celebration.
• Flexible work schedule.
• Free English classes (online) with a teacher.
• Performance review and salary raises twice per year.
• Annual bonus and relocation coverage to Lviv.
• Coverage for business trips to Lviv and Croatia (Kastela).
• Corporate gifts, celebrations, and fun activities.
• Pet friendly office environment.