Description
Slack is your Digital HQ – a place where work flows between your people, systems, partners, and customers. From Fortune 100 companies to corner markets, millions of people around the world use Slack to connect their teams, unify their systems, and drive their business forward.
Slack breaks down communication silos inside and beyond your organization by bringing teams and tools together around common goals, projects and processes in channels and in Slack Connect. It removes the limits of physical walls, giving people the flexibility to do their best work where, when and how they prefer with features like huddles and clips. And it empowers everyone to automate common tasks with apps and workflows. In this digital-first era, Slack’s mission is to make people’s work lives simpler, more pleasant, and more productive.
A taste of our scale and reach:
Slack delivers 300k+ messages per second
77% of the fortune 100 use Slack
150+ countries have daily active users in Slack
To date, 1.79 trillion messages have been sent on Slack
2.65 billion actions are taken in Slack each day
Slack has 200k+ paid customers
Users are spending a combined 243 million minutes per week in Huddles
We're looking for people who are passionate about crafting phenomenal Android applications.
As a Software Engineer II on this team, you'll work on shaping the technical direction for Android Search and AI features, making tradeoffs between performance and features, and contributing to decisions about what gets built next based on user impact.
You'll play a key role in our AI mobile efforts, implementing features across two of our highest-impact user journeys—helping people find what they need and get things done on the go. This isn't about porting desktop features to mobile; it's about reimagining AI and Search for how people actually work from their phones, leveraging mobile-specific capabilities like notifications, location, and device sensors to build context-aware experiences that feel native.
Mobile is a critical touchpoint for our users, and there's significant untapped potential to drive AI adoption on the platform. You'll collaborate with engineers equally passionate about mobile-first thinking while partnering closely with Product and Design.
Software Engineers II at Slack are strong individual contributors who are accountable for their work and contribute to team success. Product engineers operate at any layer of the stack but prefer to work closer to what the user sees & interacts with.
Candidates should have an eye for the polished Android design our users expect and an attention to detail down to the very last density independent pixel. They should know their way around the View hierarchy and be eager to partner with Product and Design to craft efficient, performant, and delightful user experiences. They'll like building for the long term and value patterns and structures that allow for maximum flexibility in a constantly evolving product.
Slack has a positive, diverse, and supportive culture; we look for people who are curious, inventive, and work to be a little better every single day. In our work together we aim to be smart, humble, hardworking and above all, collaborative.
Team Culture & Ownership:
Champion of Engagement: You bring energy to the team, fostering a collaborative environment where everyone feels heard and motivated.
Curiosity-Driven: You are a lifelong learner who asks "why" and stays eager to explore new ways to improve the product and our processes.
Full Ownership: You take pride in your work from start to finish, treating the codebase and the user experience as if they were your own.
Proactive Partner: You don't wait for permission to improve things; you identify gaps, propose solutions, and bring others along with you.
What You Should Have:
2+ years of professional Android development experience
Strong proficiency in Kotlin and Android SDK
Experience with mobile architectural patterns (MVVM, MVI, etc.)
Familiarity with RxJava, Coroutines, Flows, and dependency injection frameworks (Dagger, Anvil)
Experience with or interest in learning Jetpack Compose
Interest in or experience with ML/AI integration, search systems, or natural language processing
Disciplined approach to development, testing, documentation and code structure
Product mindset - care about user experience, performance, and reliability
Strong collaboration and communication skills
A related technical degree required
Bonus Points:
Experience building search interfaces or working with search engines
Familiarity with AI/ML model integration on mobile platforms
Experience optimizing mobile apps for performance with compute-intensive features