Senior Software Engineer (Frontend Builds & Tooling, Slack)

Role Overview

Join Slack’s Frontend Developer Experience team as a Senior Software Engineer. You’ll improve the frontend development environment for hundreds of developers by enhancing the frontend toolchain—making builds faster, more reliable, and easier to work with.

Key Missions

• Collaborate with the team to enhance developer experience and productivity through tooling, processes, and support.
• Identify gaps and challenges in frontend tooling, explore solutions, and build a roadmap for improvement.
• Mentor engineers, perform deep code reviews, and improve engineering standards, tooling, and processes across the organization.

Responsibilities

• Speed up frontend builds and improve frontend toolchain efficiency.
• Solve complex problems in a team environment and communicate clearly.
• Investigate and improve JavaScript performance.

Requirements

• 5+ years building and debugging complex systems in a team environment.
• 5+ years with CI/CD tools.
• 5+ years configuring and optimizing modern frontend toolchains/build tools (e.g., Webpack, Rspack).
• 8+ years writing JavaScript or TypeScript.
• Strong communication skills, positive attitude, and empathy.
• Ability to self-motivate, take initiative, learn quickly, and meet deadlines.
• Bachelor’s degree in Computer Science/Engineering (or equivalent experience).

Nice to Have / Additional Skills

• 3+ years with tsc and/or tsgo.
• Experience with yarn workspaces.
• TypeScript Project References.
• CSS tooling experience (Less, Sass, PostCSS, Lightning CSS).
• Frontend linters (ESLint, Oxlint, Biome).
• Experience with PHP or Hack.
• Experience (or interest) in Rust.
• Experience with React and Redux.