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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Cross-Platform SDK Development - **Company:** Gruner + Jahr AG & Co KG - **Location:** Berlin, Germany - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Apple TV, Mobile Application Development, Code Review, Microsoft Windows SDK, TypeScript, Grafana, Swift (Programming Language), Technical Debt, Kotlin, Kubernetes, Extreme Programming, React Native, JestJS, Docker, Jenkins - **Published:** August 7, 2026 - **Apply:** https://jobsearch.createyourowncareer.com/talentcommunity/apply/1414408733/?locale=en_US ## About the Role Your Skills * TypeScript Powerhouse: You moved beyond the basics to work on complex architectures - and can still find your way through Vanilla JavaScript when a platform demands it. * Cross-Platform Mindset: Experience in Mobile development (React Native, Kotlin, Swift) or device-specific engineering. You understand how to optimise for limited resources. * Testing Obsession: You don't ship until the edge cases are conquered. Jest and Vitest are your primary weapons. * Collaboration Spirit: You enjoy being the "Networker" who brings different technical perspectives together to find the best solution. Bonus XP (The Edge): * Knowledge of Docker, Kubernetes, and Jenkins. * Ability to navigate Grafana dashboards and Graylog traces to pinpoint issues in the wild. ## Description Most developers build for the perfect environment: the latest OS on high-end hardware. We build for the real world. From the living room (FireTV, AppleTV) to the palm of the hand (iOS, Android) - we create the invisible glue that makes seamless experiences possible across a fragmented hardware universe. At smartclip, you don't just write components; you define how they interact. You make sure every platform we support - from the living room to the phone in someone's pocket - shares one coherent, scalable architecture instead of a patchwork of one-off solutions. Your Mission * Cross-Platform Engineering: Develop and evolve high-performance SDKs that run flawlessly across the entire CTV and Mobile ecosystem (AppleTV, FireTV, Android, HbbTV, iOS). * Strategic Synergy & Alignment: Drive technical cohesion by identifying platform overlaps and aligning architectures to ensure a unified language across all SDKs and tools. * Technical Ownership & Roadmap: Influence the product direction by balancing rapid feature delivery with strategic refactoring and the reduction of technical debt. * Native Performance & Depth: Implement platform-specific logic on top of a shared TypeScript core to ensure our SDKs feel truly native on every operating system. * Quality & Mentorship: Establish a bulletproof testing culture using Jest and Vitest, while elevating the team through mentorship and high-standard code reviews., * Ownership over tickets: You're trusted with real responsibility, not just tasks. No unnecessary bureaucracy, no micromanagement - we rely on you to take things forward. * Build > Talk: We test what works - not what sounds good. Fail fast, learn faster. * High standards, low ego: We take our work seriously, but not ourselves. Direct feedback, honest collaboration, no drama. * Stay sharp: Hackathons, conferences, community - we invest in your growth and keep you at the cutting edge. * And yes - the fundamentals are covered too: 30 days of vacation + Dec 24 & 31 off, Smart Fridays (4 days week possible), mobility (Germany ticket & JobRad), sports & health offerings, mental health support, corporate benefits, RTL+ access, and more. ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [But, you're not Facebook](https://www.wearedevelopers.com/videos/378-but-you-re-not-facebook) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Software Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/194-software-developer-salary-in-germany-2023)