Skip to main content

My 2017 Review

Passion for System Design

After finishing a one year project, my longest stable team (lasted for 3 years) was separated into two smaller teams. Sadly, but that was a good chance for me to become a key member in my new team. My preferred skills were about system architectures; therefore most of the tasks of building the application structures were handled by me. In order to enhance my design system skills, I have spent much my time for reading books closely after work. These following books help me a lot.
- Object-Oriented Thought Process | Matt Weisfeld
- Head First Design Pattern | Elisabeth Freeman and Kathy Sierra
- Java 8 in Action: Lambdas, Streams, and Functional-style Programming | Alan Mycroft and Mario Fusco

Junior Technical Architect

I was requested to join a technical architect team (aka Team. Alpha) where I actually had gained experiences almost on interviewing candidates for my company (lol). Besides, I noticed myself must improve the skills of convincing people because I had had a strong debate with other members once in a sharing session (yes, I failed). It was really tough to convince others when introducing a stuff/an idea was totally new. But, "Do it Anyway" because debating makes problems clear.


New MacBook

This was something very normal but I think it's worth the money for tackling a new experience on a new operating system (macOS). I really loved it!

Facing challenges in finding a new company

I had worked at my old company (Axon Active Vietnam) for more than 4 years. It was not too long but I felt that it was the time for me to move out of my "safe zone". I had spent much time for interviewing to select a company for my new journey. Sadly, I had failed in a lot of places, from Outsourcing to Product to Startup companies. It was really a frustrated decision but eventually, I made a resignation when I didn't have a new offer. And, even my manager who also suggested a raise to keep me on my team. I appreciated that.

Fortunately, I had received several offers (exactly 3) at the end days before I left my old company. The following was my log: (Company | Applied position | Interview Notes)
  1. NVG | Senior Web Java Developer | Various questions about frameworks are being used.
  2. LenderRate | Developer | Algorithms (level: hard, difficult).
  3. ContentNet | Senior Developer | Deeply technical questions about Java core, design patterns and how to approach a technology.
  4. Absolute Vietnam | Developer | Deeply technical questions about Java core (but, it's my strong points).
  5. Innotech | Full-stack developer | Behavior questions (quickly, only <30 minutes).
  6. FPT | Developer onsite longterm in Singapore | Specific frameworks (Restful API, NodeJS, Microservices).
  7. Adnovum | Professional Developer | How you understand your most favorite projects and used technologies; algorithms (level: easy/medium).
  8. Freelancer with my beloved team | So, I passed it without conditions (Haha).
  9. Politely declined to interview at Zalora, SAI GON BPO.

Winning my first project with my freelance team

With a strong spirit of a startup, my team focused on trying to make our first project super succeed by providing a good quality and fast-building application. It was not only collaborating well with customers but consulting them to have a "better" application.

The following were key values of my team:
- Having the same vision: sharing a "can do" attitude. We organized some practical sessions each sprint such as knowledge sharing, code reviewing, and retrospective.
- Focus: reflection and adaption on whole sprint goal, not individual tasks status.
- Being agile: being flexible/effective at work rather than following strictly a process.

My desk at CirCO CoWorking Space

Happy New Year! 2018.

Comments

  1. Holy crap! but, it was cool. Algorithms can be called as "Chi" in Kung Fu!

    ReplyDelete

Post a Comment

Popular posts from this blog

Avoiding Time-Wasting Pitfalls in Agile Estimation

If you do Scrum at work, you might be very familiar to the estimation in Planning 1 . My PO has once complained to my team that why it took too long for estimating just a story. Wasting time results in the planning timebox is violated. I give you some advice from my experience: Estimation is estimation, not measure. When you read some requirements, you see some risks but you actually don't know how complicated it will be.  Don't try to influence the others by explaining how to do it in too detail. Just keep in mind that you know the business domain pertaining to customer needs and estimate how much effort you will spend for it. The effort should be compared to your baseline one that you use for a simple requirement. The bottom line is we do "relative estimation", not absolute estimation. For example, you are asked to estimate the height of a building. Basically, you just need to answer "how many times higher is the build than your height"; you do...

Math fundamentals and Katex

It was really tough for me to understand many articles about data science due to the requirements of understanding mathematics (especially linear algebra). I’ve started to gain some basic knowledges about Math by reading a book first. The great tool Typora and stackedit with supporting Katex syntax simply helps me to display Math-related symbols. Let’s start! The fundamental ideas of mathematics: “doing math” with numbers and functions. Linear algebra: “doing math” with vectors and linear transformations. 1. Solving equations Solving equations means finding the value of the unknown in the equation. To find the solution, we must break the problem down into simpler steps. E.g: x 2 − 4 = 4 5 x 2 − 4 + 4 = 4 5 + 4 x 2 = 4 9 x = 4 9 ∣ x ∣ = 7 x = 7  or  x = − 7 \begin{aligned} x^2 - 4 &= 45\\ x^2 - 4 + 4 &= 45 + 4\\ x^2 &= 49\\ \sqrt{x}&=\sqrt{49}\\ |x| &= 7\\ x=7 &\text{ or } x=-7 \end{aligned} x 2 − 4 x 2 − 4 + 4 x 2 x ​ ∣ x ∣ x = 7 ​ = 4 5 = 4 ...

How I did customize "rasa-nlu-trainer" as my own tool

Check out my implementation here Background I wanted to have a tool for human beings to classify intents and extract entities of texts which were obtained from a raw dataset such as Rocket.chat's conversation, Maluuba Frames or  here . Then, the output (labeled texts) could be consumed by an NLU tool such as Rasa NLU. rasa-nlu-trainer was a potential one which I didn't need to build an app from scratch. However, I needed to add more of my own features to fulfill my needs. They were: 1. Loading/displaying raw texts stored by a database such as MongoDB 2. Manually labeling intents and entities for the loaded texts 3. Persisting labeled texts into the database I firstly did look up what rasa-nlu-trainer 's technologies were used in order to see how to implement my mentioned features. At first glance rasa-nlu-trainer was bootstrapped with Create React App. Create React App is a tool to create a React app with no build configuration, as it said. This too...

Creating a Chatbot with RiveScript in Java

Motivation "Artificial Intelligence (AI) is considered a major innovation that could disrupt many things. Some people even compare it to the Internet. A large investor firm predicted that some AI startups could become the next Apple, Google or Amazon within five years"   - Prof. John Vu, Carnegie Mellon University. Using chatbots to support our daily tasks is super useful and interesting. In fact, "Jenkins CI, Jira Cloud, and Bitbucket" have been becoming must-have apps in Slack of my team these days. There are some existing approaches for chatbots including pattern matching, algorithms, and neutral networks. RiveScript is a scripting language using "pattern matching" as a simple and powerful approach for building up a Chabot. Architecture Actually, it was flexible to choose a programming language for the used Rivescript interpreter like Java, Go, Javascript, Python, and Perl. I went with Java. Used Technologies and Tools Oracle JDK 1.8...

Java Core - Top 10 Questions Every Developer Should Know

#RandomlyPickedByMe What is the difference between Javascript and Java? Difference between StringBuilder and StringBuffer? Why do I get "SomeType@a3fde" when I print my code? Why is String immutable? Why "equals" method when we have "==" operator? Is List<Dog> a subclass of List<Animal>? Why shouldn't we use raw type? Is Java “pass-by-reference” or “pass-by-value”? What's the advantage of a Java enum versus a class with public static final fields? Why "double x = 0.1 + 0.2" and result of print(x) is 0.30000000000000004? 1. What is the difference between Javascript and Java? Holy crap! (Vietnamese: Thế quái nào lại có câu hỏi ngớ ngẩn vậy chứ?) "Java and Javascript are similar like Car and Carpet are similar." - Greg Hewgill (on StackOverflow) 2. Difference between StringBuilder and StringBuffer String is immutable. StringBuilder and StringBuffer are mutable. StringBuffer is thread-safe. String...