J Li – Medium

May 15, 2021

System Design Interview Prep: How to Build a System to Handle Long Running Job

How do you design a YouTube or a Netflix? Have you ever wondered how to build a system that handle long running task like uploading and… — How do you design a YouTube or a Netflix? Have you ever wondered how to build a system that handle long running task like uploading and processing videos to platform like YouTube or Netflix. Unlike most of the transactions you see in normal websites, these video process takes minutes to…

Computer Science

5 min read

System Design Interview Prep: How to Build a System to Handle Long Running Job

Feb 20, 2021

Missed the Bitcoin Craze? Pi network could be the next big crypto

Recently Pi network apprears a lot in all kinds of social networks. It is a genuine effort by a team of Stanford graduates to give… — Recently Pi network apprears a lot in all kinds of social networks. It is a genuine effort by a team of Stanford graduates to give everyday people greater access to cryptocurrency. Many people treat it as a promising cryptocurrency. It has drawn lots of attention even when it still has…

Bitcoin

2 min read

Aug 9, 2020

Book List & Resources & References

Software, Code — Software, Code Clean Code: A Handbook of Agile Software Craftsmanship Complete Code Java Concurrency In Practice Jenkov’s blog (Super Good Java Tutorial and Ref) Baeldung (Java / Spring Tutorials / Articles / Advanced Topics) System and Design (System Design, Object Oriented Design) Service Design Patterns Head First Design Patterns Design…

Books

1 min read

May 30, 2020

System Design Interview Prep: How to Build a System to Handle Long Running Job

How do you design a Youtube or a Netflix? Have you ever wondered how to build a system that handle long running task like uploading and… — (This post is also available in my blog) How do you design a YouTube or a Netflix? Have you ever wondered how to build a system that handle long running task like uploading and processing videos to platform like YouTube or Netflix. Unlike most of the transactions you see in…

System Design Interview

6 min read

Published in Towards Data Science

·Apr 9, 2020

System Design Interview Prep: Should You Put the Data in Cache?

Cache is a data store that serves data at a relatively fast speed. There are hardware and software cache. In system design interview, we… — (this post is also available in my blog) Cache is a data store that serves data at a relatively fast speed. There are hardware and software caches. In system design interview, we will focus on software cache mostly. In many cases, cache are blocks of memory that store data. Since…

Data

5 min read

Mar 30, 2020

My posts about Finance and Tech

Portfolio Optimization for Minimum Risk with Scipy — Efficient Frontier Explained — Portfolio Optimization for Minimum Risk with Scipy — Efficient Frontier Explained Trading Strategy: Technical Analysis with Python TA-Lib Trading Strategy: Back testing with Backtrader Millennial’s Investment choice on Robinhood vs. Motley Fool Stock Advisor Reduce Risk by Combining Risky Stocks for Investment Trading: Calculate Technical Analysis Indicators with Pandas 🐼

Finance

1 min read

Mar 29, 2020

My posts about FAANG interview

Ace System Design Interview in FAANG — Ace System Design Interview in FAANG How I LeetCode for 6 months and get a FAANG offer These are all the resources that help me land a FANG job Steps to Ace the System Design Interview System Design Interview: How to Design a System to Handle Long Running Jobs Ace the FAANG System Design Interview: Database, NoSQL, SQL System Design Interview Prep: Cache

Coding

1 min read

Published in Towards Data Science

·Mar 2, 2020

Steps to Ace the System Design Interview

How to solve the system design interview — (this post is also available in my blog) Clarification System design interviews, like coding interviews, do not only test candidates’ technical skills, but also validate if candidates can solve a problem that’s not well defined. Questions are asked vaguely and generally. It’s candidates’ job to find out the requirements and come…

Technology

4 min read

Steps to Ace the System Design Interview

Published in Towards Data Science

·Feb 11, 2020

SQL (Relational Database) or NoSQL? Ace the FAANG System Design Interview

SQL vs. NoSQL in System Design Interview — (This post is also available in my blog) Many systems require permanent data store to store application data. With the rise of NoSQL databases in these years, it is critical to identify to different strengths of SQL and NoSQL databases, and pick the right database that fit your use case…

Interview

3 min read

Published in Towards Data Science

·Feb 1, 2020

Ace the System Design Interview in FAANG

my system design interview note — (this post is also available in my blog) System design is common in technical interview these days. If coding interview validate the ability to code, then system design interview validates the ability to build. It verifies whether a candidate can build a system that can perform at scale and tolerant…

Interview

4 min read