Anthropic· Engineering & Design - Product· San Francisco, CA | New York City, NY | Seattle, WA
Senior Staff Software Engineer
Classified Tasks (14)
Automate 0%Augment 50%Human-Only 50%
Augment (7)
AI assists, human decides
Dive into iOS and Android internals (rendering, text, streaming, performance) to unlock experiences not possible at the app layer alone
technical
Work side-by-side with design to ship an interface that feels fast, polished, and considered
creative
Build and maintain quality systems (performance budgets, quality gates, observability) that keep the app’s user experience high
operational
Write production code for iOS and Android apps
technical
Put systems and processes in place that allow a fast-moving team to maintain performance and polish standards
operational
Push real-time streaming and LLM-powered chat integration into the app to enable low-latency conversational experiences
technical
Ship consumer-scale mobile applications and iterate them in production
operational
Human-Only (7)
Requires human judgment
Own the technical strategy for Claude’s core chat surface on mobile and influence its evolution across web and other clients
leadership
Partner with product, design, and partner engineering teams (e.g., Claude Code, Cowork, Growth) to integrate their work seamlessly into the mobile app
communication
Set architectural direction for mobile applications and platform-level components
leadership
Make critical technical decisions and resolve hard technical trade-offs
leadership
Build credibility and cross-team partnerships to align technical direction and enable coordinated execution
communication
Define product and technical roadmaps by bringing an engineering point of view to what to build, in what order, and why
leadership
Help determine product scope and priorities as the product and underlying models evolve
leadership
Job description
About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. About the Role Anthropic’s Consumer Products team is hiring a Senior Staff Software Engineer to serve as the technical lead for Claude’s core chat experience on mobile — the surface where most people meet Claude for the first time. You’ll own the technical direction for our iOS and Android apps and shape how the chat interface evolves across mobile and web, working closely with product, design, and partner teams to deliver the most compelling way to talk to an AI. This is a deeply hands-on staff+ role. You’ll write code, set architectural direction, and make the hardest technical calls — but the real measure of success is influence: building the credibility and partnerships that let a growing organization move together. You’ll help us figure out not just how to build, but what to build, as the product and the models underneath it evolve in tandem. We care as much about craft as we do about capability. The right person obsesses over how the app feels — performance, polish, the small details that make software feel alive — and knows how to put systems in place so a fast-moving team can keep that bar high. In this role, you will: Lead the chat experience: Own the technical strategy for Claude’s core chat surface on mobile, and influence how it evolves across web and other clients. Build across the org: Partner with teams like Claude Code, Cowork, and Growth so their work lands seamlessly in the app — and so the app makes their work better. Go deep on the platform: Push into iOS and Android internals — rendering, text, streaming, performance — to unlock experiences that aren’t possible at the app layer alone. Raise the bar on craft: Work side-by-side with design to ship an interface that feels fast, polished, and considered, and build the quality systems that keep it that way. Shape the roadmap: Bring an engineering point of view to product strategy — what we should build, in what order, and why. You might be a good fit if you: Have led technical direction across teams you didn’t manage, and can point to specific moments where you built credibility and brought people along. Are deeply expert on at least one mobile platform — iOS preferred — including the layers below the framework: rendering, performance, memory, text. Have great product instincts and care about craft. You notice when something feels off, and you’ve fought for the details that make consumer software feel great. Have shipped consumer-scale mobile apps and put the systems in place (performance budgets, quality gates, observability) that let a team move fast without breaking things. Work well with product, design, and partner engineering teams — you’re the person they want in the room when a hard call has to be made. Strong candidates may also have: Experience building AI/LLM-powered or real-time streaming chat interfaces Depth across both iOS and Android, or native + cross-platform A track record of seeing a multi-quarter technical strategy through from proposal to outcome The annual compensation range for this role is listed below. For sales roles, the range provided is the role’