Tech Lead Mobile App (m/w/d)

WHAT CONVINCES US

Several years of hands-on mobile development with deep experience in cross-platform development, ideally React Native, including at least one consumer app with a large user base shipped and run on iOS and Android.
Experience as a Tech Lead or Lead Engineer, setting technical direction for other engineers and mentoring them, including in distributed teams.
Solid knowledge of mobile architecture: navigation, state management, offline behaviour, performance, deep linking and push notifications.
Proven experience connecting mobile apps to backend APIs and to customer login and identity systems, and with mobile build, release and production monitoring.
Substantial hands-on experience developing software with AI coding assistants and agents, with the judgement to know where they help and where they don't.
Ideally, experience with retail, e-commerce or loyalty apps, apps across several countries and languages, or migrating an existing app while keeping its users.
Pragmatic decision-making, clear communication, and a strong sense of ownership for product quality and the customer experience.
Business-fluent English; German is a plus.

Shape and evolve the architecture of our new customer app together with the team, driving key foundation decisions from tooling to build and release setup.
Stay hands-on by building critical parts of the app yourself, reviewing code, and establishing engineering standards for quality, testing, accessibility, performance, and security.
Drive an AI-first way of working within the team by setting standards and guardrails for AI-assisted development and exploring new AI tools and approaches.
Ensure the app meets its quality targets and that releases are reliable, covering everything from CI/CD to staged rollouts.
Act as the app’s technical counterpart for the backend, identity, commerce, and loyalty teams, ensuring requirements are clearly communicated and potential gaps are identified early.
Support and mentor engineers, share knowledge across teams, and contribute to the assessment of technical skills during recruiting as a senior expert without disciplinary responsibility.
In close collaboration with the Product Owner, identify opportunities where AI and technology can create additional value within the app itself.

Flexible, hybrid working policy with 26 vacation days
Meal tickets and private health insurance.
Two locations, one team — work from Bucharest or Ulm
A modern IT organisation with over 230 colleagues, flat hierarchies and real freedom to shape your domain.
Employee discount on Müller products
A greenfield opportunity to shape and build a new customer app from day one, used by millions of customers across Europe, for one of Europe's largest family-owned retailers.
A senior expert career path with real technical influence, in a team that works AI-first.

020276 Bucharest
Str. Barbu Văcărescu 301–311

Full-Time

immediately

Herr Werner +49 731 1747415

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