Senior Staff Software Engineer (Android)

• The Slack Mobile team builds Slack’s mobile experiences, from core messaging to AI and everything in between
• We operate at the intersection of product innovation, mobile platform excellence, and large-scale engineering. The features and systems we build support millions of daily users and require deep investments in performance, reliability, accessibility, and user experience
• We’re looking for a Senior Staff Android Engineer (Architect) to help define the future of Slack on mobile. As a Senior Staff Engineer, you’ll serve as a top technical authority spanning multiple teams and orgs
• You’ll set strategy at an organizational scale, shape product and technical direction across Slack’s mobile platform, and lead innovation on the biggest opportunities facing Slack’s Android application
• You’ll partner closely with Product, Design, Backend, Infrastructure, iOS, and fellow mobile engineering leaders to deliver experiences that are intuitive, delightful, and reliable for millions of users worldwide
• This role combines deep hands-on technical leadership with organization-wide influence, shaping how multiple teams build and scale mobile software as part of Slack’s Architect technical leadership track
• Define the multi-year technical strategy behind experiences used by millions of Slack users every day, spanning multiple teams and the broader organization
• Lead the most complex, ambiguous, cross-functional initiatives from early technical exploration through production rollout and long-term evolution, often spanning several teams or the entire org
• Lead feature prototyping to define the Android user experience for Slack’s biggest opportunities
• Partner with Product and Design leadership to shape experiences that balance user needs, technical constraints, and long-term maintainability at scale
• Identify and drive org-wide opportunities to improve performance, reliability, accessibility, and developer productivity
• Act as a top-level technical authority, influencing engineering decisions across the org through architecture reviews, technical strategy, and mentorship of staff and senior engineers
• Set and evangelize best practices for Android development, testing, observability, and operational excellence across the broader engineering organization
• Drive the evolution of Slack’s mobile architecture and infrastructure to support future product investments, including AI-powered experiences
• Mentor and grow other Staff and Senior engineers, and help cultivate technical leadership across the broader Android engineering community within Slack

Benefits

• Medical Care
• Life Insurance
• Retirement Savings
• Employee Assistance Programs
• With 9 standard holidays and four floating holidays, you get a total 13 paid days off each year- Demonstrated ability to influence technical direction purely through expertise and collaboration, driving alignment across executive and senior stakeholders and multiple teams
• Deep experience designing systems and architectures that scale across many teams and long-lived codebases over many years
• Proven track record, at an Architect level, of leading large, ambiguous, org-spanning technical initiatives with significant measurable business impact
• A bias toward ownership, execution, and continuous improvement, with the judgment to prioritize the highest-leverage work across the organization
• Excellent communication skills and a track record of influencing across Engineering, Product, and Design leadership, including executive stakeholders
• Deep, recognized expertise in Kotlin and modern Android development, with a track record of setting technical standards that others across the industry or company follow
• Strong product intuition and a passion for creating exceptional user experiences
• 15+ years of professional software engineering experience, including extensive experience building and scaling Android applications in production
• Expert understanding of Android architecture, application lifecycle, concurrency, networking, and performance optimization at scale
• Experience with Jetpack Compose and modern Android architecture patterns
• Experience building shared platforms, design systems, or developer infrastructure used across multiple teams
• Deep expertise in application performance, startup optimization, reliability, and observability at scale
• Contributions to open source projects or the Android community, or other external recognition of technical leadership
• Experience leading large-scale technical migrations or architectural transformations spanning multiple teams or the whole org
• Experience building collaboration, productivity, messaging, AI, or enterprise software products