System Design Mock + Architecture Feedback
A 90-minute system design mock and architecture debrief. Practice requirements, data models, scalability, reliability, and trade-offs with specific feedback on technical depth and communication.
Practice a realistic backend or distributed systems design interview with an engineer experienced in gaming and financial technology systems. This 90-minute session combines an interview-style design exercise with a detailed architecture debrief. We will discuss requirements, system components, APIs, data models, scalability, reliability, and the trade-offs behind your choices. What you will get: - A live system design mock interview matched to your target level. - A detailed discussion of your architecture and key decisions. - Feedback on communication, prioritization, technical depth, and trade-offs. - Concrete suggestions and a focused plan for improving your next design interview. Best for engineers preparing for mid-level and senior software engineering interviews. Please share your target role and current system design experience in advance. Coaching is available in English or Mandarin. Includes one 90-minute live session, including both the mock interview and feedback.
What's included
Meet your expert
Terry L.
Ex-Two Sigma & Roblox | 40+ Mentored | SWE Interview Coach
I help students, career switchers, and working engineers prepare for software engineering interviews and turn ideas into practical AI projects. We focus on breaking down unfamiliar problems, writing clear code, explaining trade-offs, and building skills you can use independently. I'm Terry Li, with 8+ years of software engineering experience across Two Sigma, Addepar, Roblox, and DoorDash. I earned a bachelor's degree in Computer Science from Tsinghua University and a master's degree in Computer Engineering from Columbia University. My background spans backend services, distributed systems, developer tooling, and data infrastructure in financial technology and gaming. I've also interviewed engineering candidates and mentored 40+ students and candidates across all my coaching areas. I also bring 3 years of experience in AI-assisted development and AI product building. I help learners use ChatGPT, Codex, and Cursor to scope projects, implement features, and review, debug, and test the results. Who I work with - Students and career switchers learning Python, data structures, and algorithm fundamentals. - New graduates and working engineers preparing for coding, system design, and behavioral interviews. - Experienced engineers improving how they explain project impact, architecture decisions, and technical trade-offs. - Learners and developers building projects and AI products with AI coding tools. How we work together We start with your current level, target role or project, and timeline. Sessions can include live coding, realistic mock interviews, code review, system design exercises, AI project guidance, or resume and project-story feedback. For beginners, I teach Python step by step through practical exercises, debugging, and problem decomposition. You'll leave with specific feedback and a manageable plan for what to practice or build next. My goal is to help you understand why a solution works and explain your thinking clearly. Coaching is available in English and Mandarin. Book a free intro call to discuss your goals and choose the most useful next step.
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