Sr. Mobile Android Engineer

This role owns Android features end-to-end at Medium, from understanding user needs through building, shipping, and monitoring performance. The engineer will write idiomatic Kotlin and Compose UI, collaborate with design and cross-platform engineers, and shape product direction in an ambiguous environment. The role requires fluency in modern Android architecture and the ability to work credibly on at least one other platform (web, iOS, or backend).

This senior role focuses on leading Android development for a consumer-facing product suite. The engineer will architect new features, mentor junior developers, and drive performance optimization. Responsibilities include owning the mobile roadmap and collaborating with cross-functional teams.

Develops and maintains Android applications, focusing on performance, reliability, and user experience. Collaborates with cross-functional teams to deliver features and improvements. Requires deep knowledge of Android development and best practices.

This Senior Mobile Engineer role drives the technical direction of the Ground News Android app, focusing on user growth and subscription revenue. The engineer will work within the Growth & Monetization pod, building Kotlin experiences and enabling non-engineers to ship landing pages, modals, and pricing experiments. The role involves maturing tooling like visual page builders, experimentation platforms, and analytics/CDP integrations.

This role designs, programs, and commissions facility automation controls for a data center plant. Responsibilities include writing PLC code, building HMI/SCADA interfaces, integrating with BMS/EPMS systems, and ensuring safety compliance with NEC/NFPA standards. Requires 1+ years of experience in industrial controls or building automation, with proficiency in PLC programming and industrial protocols.

This role designs, implements, and matures the enterprise IAM ecosystem, serving as a key subject matter expert within the Information Security organization. The IAM Engineer owns complex initiatives end-to-end, including federation strategies, identity lifecycle management, RBAC, PAM, and automation with Terraform. Requires 3+ years of hands-on IAM experience and expertise in modern protocols and platforms.

This role designs, builds, and runs the software systems behind Grok Voice, delivering natural, low-latency, multilingual spoken interactions. The engineer owns the full engineering stack from large-scale data processing to distributed training and production deployment, including building data pipelines, optimizing training infrastructure, and integrating voice models into production. Requires experience with Python, PyTorch, JAX, Rust, or C++ and 2+ years working with large-scale voice products.