Senior Mobile Engineer - React Native, Platform/Infrastructure (all genders)
HelloFresh2 months ago
Warsaw, PolandSenior
Responsibilities
- Contribute to the brownfield-to-greenfield React Native migration across a white-labeled, multi-brand application ecosystem.
- Support the React Native monorepo and shared npm packages used across mobile and web teams.
- Maintain and improve Bitrise CI/CD pipelines and contribute to evaluating a future Expo migration.
- Design and extend Maestro end-to-end test coverage to improve release quality.
- Build and maintain Honeycomb tracing and dashboards for application health and observability.
- Collaborate with engineering and product teammates across squads, reviewing technical solutions and improving engineering practices.
- Investigate and resolve production issues while supporting application stability and reliability.
- Write technical documentation including design proposals, ADRs, and scoped technical write-ups.
Requirements
- Hands-on, regular experience using AI coding tools or agents such as Claude Code, Cursor, or Copilot beyond casual experimentation.
- Deep production-tested React Native expertise with strong knowledge of both iOS and Android.
- Experience with React Native internals, performance profiling, native code bridging, platform-specific constraints, and app store release processes.
- Experience structuring specifications, tool configurations, context, and guardrails for reliable AI-agent output.
- A proven track record optimizing workflows, linting, caching, and build times for engineering organizations with 50+ developers.
- Experience managing complex build configurations, white-label applications, and monorepo architectures.
- Deep mobile engineering experience across app releases, test automation, on-device performance, and platform UX conventions.
- Ability to operate autonomously, make technical decisions in ambiguous situations, and support complex production incidents.
- Proven ability to influence technical direction across multiple engineering teams through expertise, communication, and collaboration.
- Strong ownership, delivery focus, product sense, and ability to support decisions with data and user evidence.
Benefits
- International collaboration with experienced engineers and product partners across HelloTech.
- Opportunity to build systems supporting more than 6 million customers and complex supply chain operations.
- Autonomous, product-led environment with opportunities to influence architecture, design, quality, and ways of working.
- End-to-end ownership from problem definition through production delivery.
- Access to the Warsaw Centre Point workspace, including showers, breakout zones, outdoor space, cycle parking, coffee, soft drinks, and fruit.
Tech Stack
Categories
Mobile
About HelloFresh
HelloFresh builds subscription meal kits for households, delivering pre-portioned ingredients and recipes to cook at home. The company sells direct-to-consumer across North America, Europe, and Australia under multiple brands, with revenue from recurring subscriptions and add-ons like market items. Founded in 2011 and headquartered in Berlin, HelloFresh is a public company listed in Germany (ETR) and operates its own fulfillment and last-mile logistics.