What Gets Communicated Gets Done: Why Slack Sucks

Why He Built (And Shut Down) A Meta Internal Tool for Pseudonymous Communication

He Bought Coffee For ALL Meta Employees On His Last Day

[Masterclass] How To Ace Your Big Tech Interview - System Design

System design is a crucial software engineer interview skill, especially for FAANG and Big Tech in general. It is effectively a requirement to be leveled at a senior software engineer or higher and will show up in mid-level engineer interviews as well (with the occasional appearance in even junior engineer interviews). The cool thing about system design (unlike data structures and algorithms) is that it's something you actually need to do on the job.

Here are our Top 5 points from the session (in no particular order):
- **Leverage engineering blogs of top companies** - And if you're applying to one of these companies, definitely read their blog. This will help you understand their high-level design and gives you a real-world example to anchor off of, as opposed to something more abstract and high-level that you would get from a traditional book.
- **Do NOT write code** - System design is a *high-level* exercise meant to gauge seniority. Writing raw code is the mark of a more junior software engineer, which is why you should never be writing code in a system design interview. Instead, draw boxes with arrows where the boxes represent components and the arrows represent how they interact.
- **There is no right answer** - One of the main reasons software is hard is because of how open it is. For any complex technical problem, there will be several good solutions, each with varying tradeoffs. System design is not like school or DSA where there is a singular right answer.
- **Understand the problem requirements** - System design problems are, by design, very open-ended. For example, if you get "Build the Twitter feed", there are so many features that make it up: There is no way you can design the entire thing in 1 interview round. Work with your interviewer to understand the scope of the problem and which parts should be prioritized.
- **Follow mature software principles** - The 5 covered in this presentation are robustness, scalability, performance, extensibility, and resiliency. Don't just get the happy flow working - Think about how your system will react when edge cases are hit and things go wrong.

Related resources:
- [How To Ace Your Big Tech Interview [Data Structures & Algorithms]](https://link.jointaro.com/iTNxPCvkdGite4wT9)
- [System Design Series: Taro Playlists [Part 1] - What REAL System Design Looks Like](https://link.jointaro.com/4obaFizTZAdAcStY6)
- [Presentation slides](https://docs.google.com/presentation/d/1z4yX5LiiSxbHiNrBOTPIiDfhBL5qmwRUrDojT71OROY/edit)

[Masterclass] How To Ace Your Big Tech Interview - Data Structures And Algorithms

Data structures and algorithms (often abbreviated as "DSA") is an infamous staple of the software engineer interview experience. Data structures and algorithms problems are the most well-known for being part of the FAANG interview process, especially for Google.

Here are our Top 5 favorite points from this masterclass (in no particular order):

- **DSA prep is insanely high ROI** - In fact, the return on investment for time spent on DSA studying makes it one of the highest yield activities any human can do period. If you haven't worked at FAANG / Big Tech before, switching into it is likely to increase your pay by 50%+. If you're in the US, this will often mean a raise of $50k+. So the next time you're feeling burnt out from DSA studying, keep this very bright light at the end of the tunnel in mind.
- **Leetcode and Glassdoor are all you need** - DSA studying is a solved problem. You can use other, newer tools if you want, but the old-school ones still work just fine. Glassdoor in particular is naturally very effective given the "Big" nature of "Big Tech". Go through the recent data points from Glassdoor if you're interviewing for Big Tech and make sure you have a good grip on recurring recent problems.
- **Learning DSA is all about pattern recognition** - For 80%+ of DSA problems, there will be some 1-2 liner "trick" that represents the whole solution. For example, the "trick" to 2 sum is "Look for the difference and use a set/dictionary". It is not scalable to memorize solutions as code - Look for patterns and remember solutions as that high-level insight.
- **Communicate, communicate, communicate** - Since FAANG companies are so huge, there are naturally going to be far more stakeholders on every project, making alignment far more important. Because of this, Big Tech companies will often closely judge your communication skills during the interview. Don't just code in silence - Even if you get the right answer, you may still fail for not maintaining a dialogue with your interviewer.
- **Don't forget about space** - Most people are aware of big O run-time complexity, but candidates often forget about space complexity. Make sure to talk about both when you analyze your solution. As a side note, remember that a recursive solution will *not* be O(1) space.

Related resources:

- [\[Course\] Master The Data Structures And Algorithms Interview](https://www.jointaro.com/course/master-the-data-structures-and-algorithms-interview/)
- [How Alex Got Into Meta With 0 Prior LeetCode Experience](https://www.jointaro.com/lesson/ZYiTbN21FsqFxFdpwt5a/how-alex-got-into-meta-with-0-prior-leetcode-experience/)
- ["How do I balance my time between studying DSA and fleshing out my portfolio?"](https://www.jointaro.com/question/fhV2SCn56aYF4gfPVLmV/how-do-i-balance-my-time-between-studying-dsa-and-fleshing-out-my-portfolio/)
- ["Should I quit to prep for interviews?"](https://www.jointaro.com/question/Cno3oaZkvUu7BPLhHB7g/should-i-quit-to-prep-for-interviews/)
- [Presentation Slides](https://docs.google.com/presentation/d/13uLUHDvZifjp2aVClGsW29nfuVpQYvrkGLP8cej0R_k/edit#slide=id.p)

[Masterclass] How To Learn Quickly In Tech

Related resources:
- ["How do I identify the core things to learn when picking up a new tech stack?"](https://www.jointaro.com/question/0VfjTWl2gxCKS0PRHpRT/how-do-i-identify-the-core-things-to-learn-when-picking-up-a-new-tech-stack/)
- ["What’s the most effective way to switch domains in tech?"](https://www.jointaro.com/question/eFr9vsyTSiYLCbtsj7RR/whats-the-most-effective-way-to-switch-domains-in-tech/)
- [Presentation Slides](https://docs.google.com/presentation/d/1C0RYphpovijVp8s3JVjG9iYFT6hgPJNHabIeP8WF7V4/edit?usp=sharing)

[Masterclass] How To Come Up With 100k+ Users App Ideas You Can Build For Free

Start with a simple side project and keep iterating on it to separate your side project from the rest.

Related resources:
- [[Masterclass] How To Build And Grow Tech Products To 500k+ Users For Free](https://www.jointaro.com/lesson/OEuX0KMhcnNSTJ50Voee/masterclass-how-to-build-and-grow-tech-products-to-500k-users-for-free/)
- [How Alex Made An App That Got 80k+ Users In 1 Month](https://www.jointaro.com/lesson/GlSjjLhuUdHt5drq3l5F/how-alex-made-an-app-that-got-80k-users-in-1-month/)
- ["Finding a mobile app idea - How to do it?"](https://www.jointaro.com/question/KJ4VXh6rUhKbWeiJoRDe/finding-a-mobile-app-idea-how-to-do-it/)
- ["What are some of the side income or passive income sources you can suggest?"](https://www.jointaro.com/question/URhejS9m02tEFM9WLZsd/what-are-some-of-the-side-income-or-passive-income-sources-you-can-suggest/)
- [Presentation Slides](https://docs.google.com/presentation/d/1ai8lxU1B-bH35iiSFf5hvk6NjAHpUyF2rshjyDipvaY/edit?usp=sharing)

What To Do If Your Manager Pings You Too Much

Receiving tons of interruptive messages or "can you take a quick look at this?" pings is something that every successful engineer must deal with. 

The underlying cause of getting pinged too much by your manager is generally an indication that you're not effectively guarding your time.

A few options to consider: 
- Understand the demands on your manager. Why do they feel the need to ping you so much? Do they not understand what you're doing, or perhaps they're facing a ton of pressure from their manager about high-pri bugs? 
- Document how you're spending your time, and how that is making it harder for you to do the higher priority work.
- When you talk to your manager about the issue, bring up a proposed solution along with calling out the problem.

Related resources:
- ["How does one effectively handle pressure especially when the stakes are high?"](https://www.jointaro.com/question/Bxle0iRRpQXJV88KTpn4/how-does-one-effectively-handle-pressure-especially-when-the-stakes-are-high/)
- ["How to figure out what the most important projects are?"](https://www.jointaro.com/question/CgCPA60bDDHoOteN7Lmb/how-to-figure-out-what-the-most-important-projects-are/)

Why Great Engineering Managers Are Like Captain America

There is far more to software engineering than shipping code. A truly effective engineering manager needs to step up with these issues to protect the team.

Here are the core points from the video:

- **A good engineering manager is a shield** - In particular, engineering managers should handle non-technical issues like politics and organizational thrash, abstracting that pain away from their engineers so they have the clarity to execute.
- **Alex's Manager Shielding Story** - When Alex joined his team at Robinhood, the product roadmap wasn't very clear. There definitely wasn't enough well scoped out work for the team to work on. To shield the team from this product direction thrash, he created a high-impact infrastructure project for the team to work on, giving them the scope necessary to not get destroyed in performance review from doing nothing.

If you're interested in how Alex led that Robinhood infrastructure project despite being new to the company, watch his case study about it here: [\[Case Study\] Becoming A Tech Lead Again In Just 1 Month After Joining Robinhood From Meta](https://www.jointaro.com/lesson/X8vpfJooDpsX915ouC00/case-study-becoming-a-tech-lead-again-in-just-1-month-after-joining-robinhood-from-meta/)

Related resources:

- [How Do Effective Engineering Leaders Help Their Teams Achieve More?](https://www.jointaro.com/lesson/xGJDCG7VL4hcZaq5XL92/how-do-effective-engineering-leaders-help-their-teams-achieve-more/)
- ["How possible is it to spot red flags about toxic culture during the interview?"](https://www.jointaro.com/question/1JwmhC3Nh9Ku0fkDL1bq/how-possible-is-it-to-spot-red-flags-about-toxic-culture-during-the-interview/)

What To Do If Your Manager Doesn’t Care About Your Work

Good Engineering Managers Simply Care

- A good manager understands that if your personal life isn't going well, your work performance will almost certainly be negatively affected.
- This is why good EMs genuinely care about how you're doing as a person.
  - In 1:1s, they will always listen intently.
  - If you're not doing well, they will allocate extra time to help you figure things out and just to be there to support you.

Related resources:
- ["What's the boundary between what's okay to share with your manager vs. what's not? Are some things simply too deep?"](https://www.jointaro.com/question/3L4B8iqM7D5GYsYy6xWx/whats-the-boundary-between-whats-okay-to-share-with-your-manager-vs-whats-not-are-some-things-simply-too-deep/)
- [1 on 1s Are The Time To Be Awkward](https://www.jointaro.com/lesson/xjeFRpp5YHxG9TTK8wjn/1-on-1s-are-the-time-to-be-awkward/?revalidate=true)

Signs Of A Bad Engineering Manager: Reactive vs. Proactive

What To Do If Your Manager Seems Detached

Engineering Manager Feedback Example: Good vs. Bad

One Of Management’s Hardest Tasks: Properly Giving Feedback

The Engineering Manager "Partner In Crime": The Tech Lead

The Best Managers Acquire Power To Give It Away

- Even though the manager is an authority figure, the best engineering managers *acquire power to give it away*.
- What this means is they will establish ownership over a space and then give control of it to an engineer on their team to help them grow. This is especially important growing engineers to senior levels and beyond.
- By making the engineers on the team share authority, the team becomes more resilient, so that it doesn't collapse when the manager is out.
- Alex's Instagram example:
  - The oncall in his org was very weak and unhealthy.
  - His manager got the ball rolling and collected a working group of senior+ engineers and managers to align on the problem and agree to solving it.
  - After his manager established a sphere of influence here, they handed it over to Alex to lead the entire effort and successfully revamp the oncall system for ~25 mobile engineers.
  - Manager easily could have led this effort themselves but chose to delegate to Alex, so that he could build authority in this area.

Related resources:
- ["Why would a senior make themselves replaceable?"](https://www.jointaro.com/question/b5eUTVq4m9ANQ5QCUc3q/why-would-a-senior-make-themselves-replaceable/)
- [Why Great Engineering Managers Are Like Captain America](https://www.jointaro.com/lesson/a9s0fUXIWxm8sPigvXnL/why-great-engineering-managers-are-like-captain-america/)
- [What Makes A Truly Great Tech Lead - A VP of Engineering's Perspective](https://www.jointaro.com/lesson/uHqZZ15SK19MatEvLSO6/what-makes-a-truly-great-tech-lead-a-vp-of-engineerings-perspective/)

The Cardinal Sin Of Management: Micromanaging

How Top Tech Companies Handle Management Transitions Differently

At top-tier tech companies, you should be able to have a say on who your manager will be.

What Too Many Companies Don’t Get: Management IS NOT A Promotion

Most tech companies have no idea what they're doing when it comes to engineering managers and overall leadership culture. One of the clearest ways this is reflected is how engineering manager is positioned within the company hierarchy.

Here are the core points:

- **Management is NOT a promotion** - Becoming an engineering manager is about adding value to the overall engineering in a different way. It's not about "moving up" or "controlling the engineers". *A trademark sign of bad companies is that they position the switch into management as moving up the corporate ladder.* The problem with this is that employees then switch into management for the wrong reasons, chasing money and power. This leads to an unhealthy dynamic between engineers and manager as engineers are "beneath" the manager, usually leading to the manager treating them as expendable and burning them out.
- **Top companies have separate SWE and EM tracks** - In companies like FAANG, both staying as an individual contributor (IC) software engineer and becoming an engineering manager are valid career paths with the same ceilings. This means that for every management level (manager, director, VP), there is an equivalent software engineering level with a similar amount of compensation.

Related resources:

- [How Do Effective Engineering Leaders Help Their Teams Achieve More?](https://www.jointaro.com/lesson/xGJDCG7VL4hcZaq5XL92/how-do-effective-engineering-leaders-help-their-teams-achieve-more/)
- ["What do career levels structure in big tech company look like? What are the responsibilities for each level?"](https://www.jointaro.com/question/qV5oikdcgs4GWmGeousX/what-do-career-levels-structure-in-big-tech-company-look-like-what-are-the-responsibilities-for-each-level/)

Tech Career Growth Videos

Our instructional videos provide software engineers with insights needed for career growth. Masterclasses go incredibly in-depth on a specific tech topic while case studies are real examples from established engineering leaders.