# Aced interview question: rebuilding a project in a lower-level language for speed Aced (formerly Exponent) publishes a public search API over its indexed pages; the guide is at https://www.aced.io/agents/agent-access. Source: https://www.aced.io/questions/6244/improve-project-performance-lower-level-language Source observed: 2026-11-04T23:28:11.569Z Last checked: 2026-11-04T23:28:11.569+00:00 Indexed: 2026-11-06T12:22:08.657+00:00 --- # How would you rebuild one of your projects in a lower-level language to make it faster? We publish interview questions, interview experiences, courses, and preparation resources through Aced, formerly Exponent. This question is categorized for **Software Engineer** roles and tagged **Google**, **Coding**, **Project Discussion**, and **Technical**. ## Question status - **Interview experiences:** 1 shared - **Reported last asked:** a year ago - **Community answers:** None contributed yet - **Answering:** Sign in or sign up to submit an answer and mark the question complete. - **Detailed company stats:** Available through [Upgrade](https://www.aced.io/upgrade?src=questions) ## Shared interview experience [Google · a year ago](https://www.aced.io/experiences/google-software-engineer-intern-interview-1cee6e) **Role:** Software Engineer · Intern > I got an OA first, and it was so easy that I finished it in about five minutes even though it was supposed to be ninety, which told me pretty quickly Google was not using that as the real filter. After that I had two technical interviews that were both blank-doc coding rounds where you cannot run code, so the whole thing is about reasoning, asking good questions, and keeping the interviewer engaged while you work. My actual coding questions were both pretty standard LeetCode-medium level, but the follow-up optimizations were where the signal really was, especially when I had to optimize a heap update problem with no hints. Then I went into team matching, which lasted way longer than the technicals and stretched from September into December with multiple team-specific conversations. Those calls were mostly resume-driven, but some were unexpectedly technical, so it felt like the real bottleneck was not passing interviews but getting matched. ## Related questions - [How would you make the internet faster?](https://www.aced.io/questions/2706/make-internet-faster) - [How would you choose a programming language to build your product at Google?](https://www.aced.io/questions/232/google-pm-programming-language) - [How would you debug a 20% drop in usage of one of our tools over 2 weeks?](https://www.aced.io/questions/663/debug-20-percent-drop-in-tool-usage) ## Related courses ### [Software Engineering Interview Prep](https://www.aced.io/courses/software-engineering) Land your dream software engineering role at Google, Amazon, Microsoft, Meta, Apple, and other top companies. Learn from mock interviews, frameworks, and advice from senior candidates. Practice data structures, algorithms, system design, people management, behavioral interviews, and more. ![Software Engineering Interview Prep](https://images.ctfassets.net/x78yjrjc11pq/4VkuYewBHUFIVUS5oJDW5h/02e833439b1289f25f38f13f81cbdca3/adobe_stock_optimized.jpeg?w=800&h=800&fm=webp&q=75) ### [System Design Interviews](https://www.aced.io/courses/system-design-interviews) Learn how to answer the latest system design questions across product, infrastructure, and AI domains. 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