Senior Staff Frontend Architect — Scale & Performance Leader

Salesforce; San Francisco (CA); On-site; USD 218,000 - 365,000; Full time

Job summary

Salesforce seeks a Senior Staff Engineer to lead Slack's Frontend Infrastructure, driving next-generation frontend architecture to improve performance, scalability, and reliability at scale.

You will mentor engineers, guide architectural decisions, and collaborate across product, platform, and infrastructure teams to advance React/Redux-based frontend systems within the Salesforce ecosystem. In-office collaboration is expected as part of a distributed, high-impact team.

Qualifications

• Extensive experience with JavaScript and TypeScript in large-scale applications.
• Deep familiarity with browser performance profiling and debugging tools.
• Proficient in React, Redux, and modern web technologies, with an ability to explain trade-offs and architectural complexities clearly.
• 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.
• Passion for mentorship, technical education, and knowledge sharing.
• A people-centered mindset — you understand that long-term technical success depends on the experience of the engineers who build on your work.
• A related technical degree required.

Responsibilities

• 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.

Skills

JavaScript

TypeScript

React

Redux

Performance profiling

Mentorship

Communication

Cross-team collaboration

Architectural decisions

Frontend leadership

Education

Related technical degree

Tools

Web performance profiling tools

Job description

Salesforce seeks a Senior Staff Engineer to lead Slack's Frontend Infrastructure, driving next-generation frontend architecture to improve performance, scalability, and reliability at scale.

You will mentor engineers, guide architectural decisions, and collaborate across product, platform, and infrastructure teams to advance React/Redux-based frontend systems within the Salesforce ecosystem. In-office collaboration is expected as part of a distributed, high-impact team.