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Meta·Software Engineer·Technical Phone Screen·Intermediate

Intermediate
May 2026

Summary

Went through a technical phone screen at Meta for a SWE role, pretty short session focused on TypeScript experience.

Questions Asked (1)

Q1

Can you walk me through your experience with TypeScript?

Technical Trade-offs
Author's notes

Blanked a bit on where to even start.

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AI HintsAI Generated

Suggested Approach

Structure your answer as a concise narrative that highlights your TypeScript journey, emphasizing depth of experience and specific technical challenges you've solved. Focus on trade-offs you've made when using TypeScript, such as strictness settings, migration strategies, or performance considerations, to demonstrate engineering maturity.

Pro tip: Quantify your impact where possible (e.g., 'reduced runtime errors by 30% after adopting strict mode') and mention how you've influenced team practices, like setting up linting rules or contributing to shared type definitions.

1. Summarize your overall experience

State how long you've used TypeScript and in what contexts (e.g., frontend, backend, full-stack) to set the stage.

2. Highlight a specific project or challenge

Choose one or two impactful examples where TypeScript played a key role, such as migrating a large codebase or designing complex types.

3. Discuss technical trade-offs

Explain decisions you made regarding TypeScript configuration, type safety vs. development speed, or integration with other tools.

4. Share learnings and best practices

Describe what you've learned about TypeScript's strengths and limitations, and how you apply best practices in your work.

5. Connect to the role and company

Relate your TypeScript experience to Meta's engineering culture and the specific challenges of the role, showing enthusiasm for contributing.

Key Points to Mention

  • Experience with TypeScript's type system, including generics, conditional types, and utility types
  • Migration from JavaScript to TypeScript, including strategies for incremental adoption
  • Tooling and configuration, such as tsconfig settings, ESLint, and build integration
  • Trade-offs between strictness and developer productivity, and how you balance them
  • Collaboration on type definitions and improving team-wide type safety
  • Performance considerations, such as compile-time and runtime impacts of TypeScript

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.