Mario Fernández

I develop software for a living. Then I go home and continue reading about software because I just can't get enough

Germany Joined on Mar 22, 2020

Work

Lead Developer at ThoughtWorks

Mario Fernández

Sep 24

Technical stories, a miscast artifact of agile development

#agile #practices #leadership

6 min read

Book Review: The Rust programming language

#bookreview #rust #systemsprogramming

2 min read

Mario Fernández

Sep 9

Diagrams as code for infrastructure as code

#infrastructure #diagrams #documentation

4 min read

Mario Fernández

Aug 30

Dev huddle as a tool to achieve alignment among developers

#agile #practices #leadership

6 min read

Mario Fernández

Aug 28

Book Review: The art of leadership

#bookreview #leadership #rands

2 2

2 min read

Mario Fernández

Aug 20

Understanding VPC endpoints

#aws #terraform #vpc #networking

5 min read

Mario Fernández

Jul 26

Book Review: The software architect elevator

#bookreview #architecture #devops

2 min read

Mario Fernández

Jul 19

A directory structure for React projects

#react #typescript #codeorganization

3 min read

Mario Fernández

Jun 28

Book Review: Kotlin in Action

#bookreview #kotlin

2 min read

Mario Fernández

Jun 12

Templating Concourse pipelines with Jsonnet: Follow-up

#concourse #jsonnet #templating

4 min read

Mario Fernández

May 26

Book Review: Securing DevOps

#bookreview #devops #security

2 min read

Mario Fernández

May 19

Templating Concourse pipelines with Jsonnet: An Introduction

#concourse #jsonnet #templating

6 min read

Mario Fernández

Apr 25

Book Review: Effective TypeScript

#bookreview #typescript

3 min read

Mario Fernández

Apr 23

Either Types extended version

#kotlin #functionalprogrammi #arrow #exceptions

1 min read

Mario Fernández

Apr 8

Useful commands to work with certificates

#certificates #ssl #openssl

5 min read

Mario Fernández

Mar 22

Either Types as an alternative to throwing exceptions in Kotlin

#kotlin #functional #arrow #exceptions

5 min read

Mario Fernández

Mar 22

Setting up Auth0 with Terraform

#auth0 #oauth #iac #terraform

6 min read

Mario Fernández

Mar 22

Authorization for a Kotlin Spring backend, using JSON Web Tokens

#auth0 #oauth #kotlin #springboot

5 min read

Mario Fernández

Apr 25

Comparing Traefik2 with Traefik

#traefik #devops #loadbalancing #ssltermination

5 min read

Mario Fernández

Apr 15

Fail a test in Jest if an unexpected network request happens

#react #jest #testing #reacttestinglibrar

3 min read

Mario Fernández

Apr 16

How to split the deployment of your front end and back end with the help of Consumer Driven Contract Testing

#contracttesting #pact #continuousdelivery #jest

9 min read

Mario Fernández

Apr 13

Descriptive assertions in Kotlin for clearer tests

#kotlin #testing #strikt

3 min read

Mario Fernández

Apr 20

How to automate REST API end-to-end tests in a CI environment with Postman and Newman

#rest #e2e #postman #newman

8 min read

Mario Fernández

Apr 14

Custom Components in Formik

#react #formik #reacthooks

3 min read

Mario Fernández

Apr 23

Dockerizing a JVM app with CircleCI

#docker #circleci #jvm #serverspec

6 min read

Mario Fernández

Apr 10

Painless JSON with Kotlin and jackson

#kotlin #json #jackson #rest

7 min read

Mario Fernández

Apr 11

Mock verification in Kotlin using MockK and Atrium

#kotlin #testing #mockk #springboot

4 min read

Mario Fernández

May 8

Making Concourse's fly tool work behind an authenticated ALB

#concourseci #aws

3 min read

Mario Fernández

Apr 9

An overview of IAM in AWS

#aws #iam #terraform #security

5 min read

Mario Fernández

May 8

Checking the validity of a certificate in Concourse

#continuousintegrati #concourseci #certificates

2 min read

Mario Fernández

Apr 30

Testing containers with dependencies with localstack

#tdd #serverspec #aws #localstack

5 min read

Mario Fernández

May 5

Using AWS Secrets Manager in Concourse

#continuousintegrati #terraform #awssecretsmanager #concourseci

3 min read

Mario Fernández

May 4

Modernizing your build pipelines

#ci

1 min read

Mario Fernández

Apr 26

Recording APIs with WireMock

#java #wiremock #springboot #testing

0 2

4 min read

Mario Fernández

Apr 28

Replacing ESLint with prettier

#javascript #prettier #eslint

3 min read

Mario Fernández

Apr 27

Setting up Traefik

#traefik #devops #loadbalancing #ssltermination

4 min read

Mario Fernández

May 2

Angular from the perspective of a React fan - Part 3

#javascript #react #angular #typescript

5 min read

Mario Fernández

May 2

Angular from the perspective of a React fan - Part 2

#javascript #react #angular #typescript

5 min read

Mario Fernández

May 2

Playing with CSS Grid

#css #cssgrid

4 min read

Mario Fernández

Apr 9

Storing team passwords with gopass

#security #gopass

5 min read

Mario Fernández

May 2

Angular from the perspective of a React fan - Part 1

#javascript #react #angular #typescript

5 min read

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