Staff Software Engineer, Salesforce

• We are looking for people who are passionate about making it safe to go fast
• We're looking for an engineer with strong Android foundations who thinks beyond any single platform — someone who sees mobile infrastructure as a connected system and wants to define what quality means at scale
• 7+ years of software engineering experience, with a strong foundation in Android development and significant time spent on infrastructure, tooling, or platform work in a large modular codebase
• Proficiency with Kotlin and the Android ecosystem, but equally comfortable working in build systems, CI/CD pipelines, scripting, and tooling that spans platforms
• Experience with build systems at scale — Gradle, Bazel, or similar, including build performance optimization, dependency management, and modularization strategies for codebases with hundreds of modules
• A track record of identifying systemic problems in large codebase, oversized modules, competing patterns, slow builds, flaky tests and turning them into high-impact projects with measurable outcomes
• Experience designing and enforcing architectural patterns across a codebase (e.g., dependency injection frameworks, module layering, interface-only dependencies)
• Hands-on experience building or significantly improving CI/CD pipelines, build observability, and developer workflow tooling — the systems that engineers use to validate their code every day
• Familiarity with metrics and observability tools (e.g., Honeycomb, Grafana) for measuring build performance, test reliability, or developer productivity
• Solid experience with automated testing strategies: unit, integration, and UI testing frameworks, smart test selection, and test stability management
• Comfortable with scripting (Python, Bash, etc.) for build tooling, code generation, or developer workflow automation
• A disciplined approach to development, testing, documentation, and code structure in a team environment
• An interest in guiding, influencing, and growing other engineers — you raise the bar for everyone, not just your own code
• A related technical degree required

Desirable

• The Mobile Guardrails team owns the guardrails, delivery signals, and observability that ensure Slack's mobile apps ship with confidence — whether the code is written by a human or an AI agent
• We make the development process itself better: the build systems, the test infrastructure, the architectural enforcement, and the metrics that tell us where to invest next
• As a guardrails engineer, you think in systems, not features
• You see a flaky test and think about quarantine infrastructure, not just a retry
• You see a 400-file module and think about rebuild radii and dependency graphs, not just a refactor
• You set a high bar for codebase health and take ownership beyond your immediate area — when something is slowing the team down, you fix the root cause, not just the symptom
• You are energized by the intersection of developer tooling, AI-assisted development, and mobile platform engineering
• You thrive in ambiguity, build for the long term, and measure what matters