Tech Study
I have this repository since 2017. I always had this collections of resources to give “tips” and “directions” to people I was mentoring/coaching. This book it’s a Recipies book. It’s has a colection of resources to help people to get better. It’s a cookbook of self-improvement for tech professionals.
Tech Support Guidance and tips - Since 2017. Online Book

Disclaimer
I have had this repository since 2017. There are no proprietary materials from past or future employers. I have been doing coaching/mentorship with tech professionals for decades. Here you will find links to coding problems, books, tech, what to learn, and my take on several things, alongside links to my books and my blogs.
About the Author
👨💻 Diego Pacheco Bio Diego Pacheco is a seasoned, experienced 🇧🇷 Brazilian software architect, author, speaker, technology mentor, and DevOps practitioner with more than 20 years of solid experience. I have been building teams and mentoring people for more than a decade, teaching soft skills and technology daily. Selling projects, hiring, building solutions, running coding dojos, long retrospectives, weekly 1:1s, design sessions, code reviews, and my favorite debate club: architects community of practices and development groups for more than a decade. Living, breathing, and practicing real Agile since 2005, coaching teams, and helping many companies discover better ways to work using Lean and Kanban, Agile principles, and methods like XP and DTA/TTA. I have led complex architecture teams and engineering teams at scale guided by SOA principles, using a variety of open-source languages like Java, Scala, Rust, Go, Python, Groovy, JavaScript, and TypeScript, cloud providers like AWS Cloud and Google GCP, amazing solutions like Akka, ActiveMQ, Netty, Tomcat, and Gatling, NoSQL databases like Cassandra, Redis, Elasticache Redis, Elasticsearch, Opensearch, RabbitMQ, libraries like Spring, Hibernate, and Spring Boot, and also the NetflixOSS Stack: Simian Army, RxJava, Karyon, Dynomite, Eureka, and Ribbon. I have implemented complex security solutions at scale using AWS KMS, S3, Containers (ECS and EKS), Terraform, and Jenkins. Over a decade of experience as a consultant, coding, designing, and training people at big customers in Brazil, London, Barcelona, India, and the USA (Silicon Valley and Midwest). I have a passion for functional programming and distributed systems, NoSQL Databases, a mindset for Observability, and always learning new programming languages.
🌱Currently: Working as a principal Software Architect with AWS public cloud, Kubernetes/EKS, performing complex cloud migrations, library migrations, server and persistence migrations, and security at scale with multi-level envelope encryption solutions using KMS and S3. While still hiring, teaching, mentoring, and growing engineers and architects. During my free time, I love playing with my daughter, playing guitar, gaming, coding POCs, and blogging. Active blogger at http://diego-pacheco.blogspot.com.br/
💻 Core skills and expertise: Architecture Design and architecture coding for highly scalable systems Delivering distributed systems using SOA and Microservices principles, tools, and techniques Driving and executing complex cloud migrations, library and server migrations at scale Performance tuning, troubleshooting & DevOps engineering Functional Programming and Scala Technology Mentor, agile coach & leader for architecture and engineering teams Consultant on development practices with XP / Kanban Hire, develop, retain, and truly grow talent at scale
🌐 Resources
📝 Tiny Essays:
🥇 Tiny Side Projects
- 🧝🏾♂️ Tupi lang: programming language written in Java 23
- 🥫 Jello: vanilla JS, web-apis, trello-like
- 📑 Zim: vim-like written in Zig 0.13
- 💻 Gorminator: simple and dumb Linux terminal written in Go
- 😸 kit: Git-like written in Kotlin
- 🦀 Shrust: Compress/Decompress tool written in Rust
- 🕵🏽 Smith: It’s a security Agent Written with Scala 3.x
- 📟 ZOS: A very tiny OS written in Zig
- 🎮 Tiny Games: Collection of JS games
Diego Pacheco’s Books
Here is a curated list of books that will help you become a better version of you.
- The Art of Sense: A Philosophy of Modern AI
- Diego Pacheco’s Software Architecture Library
- Principles of Software Architecture Modernization
- Continuous Modernization
- Tech Resources
- Building Applications with Scala
Want to help me?
Consider buying one of my payed booked:
- Principles of Software Architecture Modernization
- Continuous Modernization
- Building Applications with Scala
I also have FREE books:
- The Art of Sense: A Philosophy of Modern AI
- Diego Pacheco’s Software Architecture Library
- Tech Resources
How to use this gist?
This gist contains lists of resources about JS, Mobile, Architecture/DevOps and Cloud Native. Each gist has a list
of technologies that you can do POC and CODE practice, also with a list of useful books and links.
Method
- Create a github repository called sandbox-
- Code every week some POC or feature impl of each technology on the lsit.
- You should be reading one book at the time. You need make notes from your readings.
- Reading 10 pages per week is progress, you should push your self to read some pages everyweek.
- After reading and coding for some time about a specific subject lets say Automation/Ansible consider doing a LT.
- You need to understand what you are coding, ask for code review.
- You need make sure you got concepts right, validate with more experienced engineers.
- Progress is best tracked in Weekly Coaching Sessions.
- Balance is always welcome. You might use the Breath/Deepth method where 90% time invested on main topic and 10% on random.
- No matter your specific field like JS or CN you should read all this book: Agile Dev Resources
JS
Mobile
Cloud Native
Software Architecture | DevOps Engineering
GCP
POC Ideas
- Get all language/framework/lib features and do some simple code.
- Most of technical books have sample codes and excercis you can use for POC.
- Look for a problem in your project or company or something you could improve.
- 99 Problems
- Dojo Puzzle
- Create a simple version(smaller scale) of:
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- Netflix
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- Flickr
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- Slack
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- GitHub
Cheers,
Diego Pacheco