Matías Agustín Méndez matagus

HOW TO ACE A SYSTEMS DESIGN INTERVIEW

Compiler design dependency comic, originally from http://www.xkcd.com/754/ Comic courtesy of XKCD, via Creative Commons License

One interview that candidates often struggle with is the systems design interview. Even if you know your algorithms and write clean code, that code needs to run on a computer somewhere—and then things quickly get complicated. A truly unbelievable amount of complexity lies beneath something as simple as visiting Google in your browser. While most of that complexity is abstracted away from the end user, as a system designer you have to face it head on, and the more you can handle, the better.

We’re looking for generalists with depth—people who are good at most things, and great at some. If systems design isn’t your strength, that’s okay, but you should at least be able to talk and reason competently about a complex system.

Read on to learn about what we’re looking for and how you can prepare.

Programming as Theory Building

Peter Naur

Peter Naur's classic 1985 essay "Programming as Theory Building" argues that a program is not its source code. A program is a shared mental construct (he uses the word theory) that lives in the minds of the people who work on it. If you lose the people, you lose the program. The code is merely a written representation of the program, and it's lossy, so you can't reconstruct

Hi Tom!

Here's what the Markdown for a book looks like on macwright.org:

---
categories:
  - book
layout: book
title: 'My Year of Rest and Relaxation'

Thoughts on habits + practices for giving/receiving feedback effectively, as well as creating systems that get better at this with time

Writeups

Company Blogs
- Plaid: https://blog.plaid.com/building-an-inclusive-code-review-culture/
- Vox: https://product.voxmedia.com/2018/8/21/17549400/kindness-and-code-reviews-improving-the-way-we-give-feedback
Sandya Sankarram
- https://medium.com/@sandya.sankarram/unlearning-toxic-behaviors-in-a-code-review-culture-b7c295452a3c
Michael Lynch

Releases

router v2.15.1 -> v2.16.0
slugbuilder v2.7.0 -> v2.7.1
workflow v2.20.2 -> v2.21.0
workflow-cli v2.20.2 -> v2.21.0
workflow-e2e v2.20.2 -> v2.21.0

Features

GraphQL Subscription with django-channels

Django channels are official way for implementing async messaging in Django.

The primary caveat when working with GraphQL subscription is that we can't serialize message before broadcasting it to Group of subscribers. Each subscriber might use different GraphQL query so we don't know how to serialize instance in advance.

See related issue

	from django.test.client import RequestFactory
	from django.http import HttpResponse
	from django.db import transaction, DatabaseError
	from django.db.models.sql.compiler import SQLCompiler
	from django.utils import timezone

	from silk.collector import DataCollector
	from silk.config import SilkyConfig
	from silk.model_factory import RequestModelFactory, ResponseModelFactory
	from silk.profiling.profiler import silk_meta_profiler

	"""
	This file is based on https://github.com/foresmac/django-binaryuuidfield/tree/initial-setup
	"""

	import uuid

	from django import forms
	from django.core import exceptions
	from django.db import models
	from django.utils.translation import ugettext_lazy as _

	#!/usr/bin/env python3
	# -- coding: utf-8 --
	# @Author: Ariel Torti
	# @GitHub: github.com/maks500
	import argparse
	import logging
	import os
	import shutil
	import sys
	import time