We’re seeking a Senior Staff Engineer to help lead the next generation of frontend architecture — improving performance, scalability, developer productivity, and reliability at scale
As a technical leader on the team, you’ll partner across product, platform, and infrastructure to guide architectural decisions, mentor engineers, and shape the direction of the frontend at Slack
Lead cross-functional frontend initiatives to improve performance, scalability, resiliency, and developer productivity
Design, maintain, and evolve core frontend modules — including Slack’s WebSocket infrastructure, boot process, Redux/React layers, logging, and alerting systems
Drive key architectural decisions that adapt our frontend infrastructure to meet evolving product and platform needs
Identify and resolve communication and alignment challenges across teams and stakeholders
Represent and advocate for frontend technical strategy at an organizational level
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- A related technical degree required
Proficient in React, Redux, and modern web technologies, with an ability to explain trade-offs and architectural complexities clearly
A people-centered mindset — you understand that long-term technical success depends on the experience of the engineers who build on your work
Deep familiarity with browser performance profiling and debugging tools
Passion for mentorship, technical education, and knowledge sharing
Author code that establishes forward-looking patterns that multiple teams depend on and can contribute to effectively
Strong communication skills — written and verbal — with a collaborative and empathetic approach to cross-team work
Extensive experience with JavaScript and TypeScript in large-scale applications
Expertise in frontend performance: React/Redux optimizations, memory profiling, flame graph analysis, and tuning for production
Experience leading large-scale migrations, upgrades, or frontend modernization initiatives
Familiarity with persistence layers, service workers, caching strategies, and offline functionality
