Senior Mobile Engineer - React Native (Greenfield Platform)

HelloFresh; Cleveland (OH); On-site; USD 46,000 - 67,000; Full time

Benefits offered by this job

Global collaboration

Impactful tech

Leadership culture

End-to-end development

Workspace in Warsaw

Job summary

HelloFresh in Warsaw is seeking a Senior Mobile Engineer to evolve our multi-brand mobile platform from a native RN setup toward a scalable greenfield architecture. You will help build shared tooling and ship reliable software across squads.

The role focuses on migration work, monorepo scaling, CI/CD enhancements, test automation, and improving observability, while collaborating with engineering managers and teammates to raise engineering standards and reliability.

Qualifications

• Hands-on experience with AI tooling (Claude Code, Cursor, Copilot)
• Deep, production-tested React Native & native mobile expertise (iOS/Android)
• Experience using AI coding agents in production
• Proven ability to optimize workflows, linting, caching, and build times for large teams
• Experience managing complex build configurations and monorepos

Responsibilities

• Contribute to brownfield-to-greenfield React Native migration
• Support React Native monorepo scaling across squads
• Maintain and improve CI/CD pipelines (Bitrise) and evaluate Expo
• Design and extend end-to-end test coverage with Maestro
• Build and maintain tracing and dashboards in Honeycomb
• Review technical solutions with Engineering Manager and peers
• Investigate and resolve production issues to improve reliability
• Write technical documentation and ADRs appropriate to scope

Skills

AI tooling experience

React Native & mobile

Agentic engineering

Monorepo experience

Autonomy

Mobile app release cycle

Cross-squad influence

Ownership

Product sense

Collaboration

Tools

Bitrise

Expo

Honeycomb

Maestro

Job description

HelloFresh in Warsaw is seeking a Senior Mobile Engineer to evolve our multi-brand mobile platform from a native RN setup toward a scalable greenfield architecture. You will help build shared tooling and ship reliable software across squads.

The role focuses on migration work, monorepo scaling, CI/CD enhancements, test automation, and improving observability, while collaborating with engineering managers and teammates to raise engineering standards and reliability.