Mobile Engineers

We are seeking several experienced Mobile Cross-Platform CI/CD Engineers to build, maintain, and optimize our health tech client's mobile development infrastructure. This role focuses on creating robust, scalable CI/CD pipelines for cross-platform mobile applications while ensuring high-quality releases across iOS and Android platforms.

Start: June or August
Duration: End of year, extension possible
Language: English
Location: mostly remote, occasional visits to Helsinki/Oulu office beneficial
Allocation: 100%

What You will do:

• Improve and maintain end-to-end CI/CD pipelines for multiple mobile applications.
• Create reusable workflow templates and custom GitHub Actions.
• Optimize build and test times through caching, sharding and parallelization.
• Maintain and scale build infrastructure based on team growth.
• Collaborate with QA teams to optimize test coverage and execution time
• Implement disaster recovery and backup strategies for build systems.
• Improve and maintain automated quality gates and security scanning.
• Manage platform-specific requirements and dependencies.
• Set up automated device testing across real devices and simulators.
• Create test reporting dashboards and failure analysis automation.
• Monitor system performance and implement proactive maintenance.
• Stretch/bonus responsibility: Design and implement comprehensive cross-platform integration testing strategies.

Technical expertise needed in:

• GitHub Actions - Advanced workflow creation, custom actions, matrix builds.
• Docker expertise - Container orchestration, multi-stage builds, registry management.
• Build system expertise - Gradle and Tuist.
• Ubuntu & macOS proficiency - Deep understanding of both environments for cross-platform builds.
• Understanding of Xcode, Android Studio, Gradle, and Fastlane.
• Automated publishing to Apple App Store and Google Play Store.
• iOS provisioning profiles, Android keystore management, and certificate handling.
• Advanced Git workflows, branching strategies, and merge automation.
• Binary storage, versioning, and distribution strategies.
• Scripting - Bash, Python for automation.
• Build tools - Docker, Node.js, Gradle, Java/Kotlin, Swift.
• Quality gates - SonarQube, ESLint, automated security scanning, kotlinter.

The ideal candidate has:

• 3+ years in either Software engineering or DevOps/CI-CD engineering with a focus on mobile platforms and pipeline optimization.
• 1+ years of experience with at least one of gradle or github actions.
• Proven experience with high-velocity mobile development teams.
• Experience with scaling tests.
• Strong problem-solving abilities with systematic debugging approach.
• Excellent communication skills for cross-functional collaboration.
• Is self-motivated with ability to work independently and prioritize effectively.
• Continuous learning mindset to stay current with mobile DevOps trends.
• Interest in exploring and experimenting with AI tools for build optimization.
• Beneficial if you have some knowledge on any of the following technologies:
• Build optimization - Parallel execution, caching strategies, build time reduction.
• Monitoring - Pipeline health monitoring, build failure analysis, and notifications.
• Metrics collection - Build time tracking, success rates, deployment frequency, and resource utilization.
• Dashboard development using Grafana, DataDog, or similar platforms.
• Performance analysis - Trend identification, bottleneck detection.
• Reporting automation - Executive dashboards and team performance metrics
• Performance testing - Automated performance benchmarking and regression detection.
• Cross-platform Integration Testing experience.
• Mobile development background (iOS/Android/React Native/Flutter).
• Knowledge of mobile security best practices and compliance requirements.

Interested? Please contact Lisa_Witted in Slack / lisa.sandstrom@witted.com