Tech Blogs - Tutorials Dojo

How to Book the Claude Certified Architect – Foundations (CCA-F) Exam
The Claude Certified Architect – Foundations (CCA-F) is Anthropic's foundational certification for professionals who design and build production systems with Claude. One thing is worth understanding before you register: the exam is scenario-based, not concept-based. Rather than asking you to define terms or recall facts in isolation, each question [...]
Get AWS AIF-C01 and CLF-C02 with 50% OFF: Build Your Future with Two AWS Certifications!
Artificial intelligence and cloud computing are changing the way we work. From writing emails with AI assistants to running business applications in the cloud, these technologies have become part of our everyday lives. You no longer need to be a software engineer to benefit from understanding how they work. [...]
The Best Local Development Setups for Web and Mobile Apps
Local development setups can affect how fast you build, test, and ship web and mobile apps. This guide is for students, developers, and everyone that wants to compare three practical cross-platform options. You will see how Next.js with Expo, Flutter with Android Studio, and Next.js with Capacitor perform in [...]
My First Exposure to Machine Learning with PyTorch
If you have ever opened a machine learning tutorial and felt like you were reading a math and statistics textbook, you are not alone. I spent months telling myself I would “get into AI eventually”, until I finally arrived at my breakthrough. This is not a textbook breakdown of [...]
Building AI Browser Agents with Browser Use and Playwright
Artificial intelligence is changing how developers interact with the web. Traditional browser automation was originally designed around predefined scripts, rigid workflows, and predictable user actions. Developers manually wrote automation logic that followed exact selectors, buttons, and navigation sequences. While effective, these systems often broke whenever websites changed their layouts [...]
The New Software Stack: AI + GitHub + Cloud
Software development looks very different today than it did five years ago. Developers are no longer working with isolated tools and manual deployment pipelines. Instead, the modern software stack has grown into a connected ecosystem where artificial intelligence, cloud infrastructure, automated DevOps workflows, and collaborative development platforms all work [...]
AI Coding Assistants Are Changing Junior Developer Learning Habits
Human AI workflows are rapidly transforming modern software development. From generating boilerplate code to debugging cloud infrastructure configurations, AI coding assistants are becoming part of the everyday toolkit of developers around the world. For junior developers, this shift is significantly changing how programming is learned. A few years ago, [...]
Connecting the Pieces: How AWS Services Form Cloud Architectures
One of the biggest surprises I encountered while learning AWS was realizing that understanding individual services and understanding cloud architecture are not the same thing. Like many beginners, I started by learning services one at a time. EC2 was a virtual server. S3 was object storage. RDS was a [...]
How to Deploy a Lovable Site to AWS Lambda Using the AWS Lambda Web Adapter
There is a real satisfaction in taking something you built yourself and putting it live on infrastructure you own and control. This guide shows you how to deploy a Lovable site to AWS Lambda using the AWS Lambda Web Adapter, so a page you designed in an afternoon can [...]
The Rise of Human + AI Workflows
I've grown with AI during it's formative years to see how the public's perception constantly shift. AI was once framed as a threat: You vs. AI. Then it became a divide: AI-assisted users vs. non-AI-assisted users. Now, we are entering the real future of work: You + AI. The [...]

My AWS Certified Solutions Architect Professional SAP-C02 Exam Experience

I just passed the latest version of the AWS Certified Solutions Architect Professional SAP-C02! What a way to end the year strong! In this short article, I'll quickly discuss what this SAP-C02 exam is all about and the different things that can help you pass this mind-boggling test. The New AWS Certified Solutions Architect Professional Exam The AWS Certified Solutions Architect - Professional SAP-C02) exam is one of the two Professional-level certification tests of [...]

My SAA-C03 AWS Certified Solutions Architect – Associate Exam Experience

My team and I took the recently released AWS Certified Solutions Architect - Associate SAA-C03 exam version recently. The SAA-C03 test replaced the old SAA-C02 exam version last August. If you can compare the official exam guide of the previous SAA-C02 version with the latest one (SAA-C03), you may notice that the exam domains are almost exactly the same but with quite different domain percentages. For example, the "Design Secure Applications and Architectures" domain [...]

What’s New with the SAP-C02 AWS Certified Solutions Architect Professional exam this 2023?

The AWS Training and Certification team recently announced the third iteration of its challenging AWS Certified Solutions Architect - Professional (SAP-C02) exam. The first day to take the new version of the AWS Certified Solutions Architect - Professional exam would be on November 15, 2022, with an updated exam code of SAP-C02. Take note that the current version (SAP-C01) will only be available on November 14, 2022 so you still have time to recertify. The [...]

Whitelisting Access to Application Load Balancer Through The Use of AWS WAF

Load balancing an application is a common approach to distributing traffic among multiple servers. It has a breadth of benefits that can optimize performance, including availability and responsiveness, as it spreads the workload from one server to another, preventing server overload. AWS has a wide variety of load balancer types. But one of the most commonly used for web servers is the Application Load Balancer (ALB), as it functions at the application layer, the [...]

Exploring AWS Cloud Quest: Cloud Practitioner Game

What is AWS Cloud Quest? AWS Cloud Quest is an open-world, role-playing game that teaches you how to create AWS solutions using cloud concepts and exercises based on real life. It helps you learn the intricacies of modern cloud technologies and have fun at the same time. Cloud Quest features 12 real-life scenario assignments which prepare and train you to become an AWS Cloud Practitioner at absolutely no cost. This free game targets audiences [...]

Building Dynamic Start and Stop Scheduler Functions for Non-Distributed Applications Under Auto-Scaling Group

In AWS, it’s of utmost importance to consider the cost in every aspect. In fact, cost optimization is one of the 6 pillars of a well-architected framework, therefore, it must be included in every step in building solutions in AWS. There are infinite ways to reduce bills but one of the most popular ones for EC2 instances is to start or stop them, especially if they don't need to run 24/7. But constantly doing [...]

Real-time Monitoring of 5XX Errors using AWS Lambda, CloudWatch Logs and Slack

Monitoring is the best friend of every system administrator. It gives visibility into what is happening on your application so that when an issue occurs, you or someone in your team could be alerted and do the necessary measures to mitigate it. However, this can only be as effective as the metrics you're keeping track of. There are plenty of factors that can affect application performance. And while it’s difficult to stay on top [...]

Automatically stop non-production RDS databases with AWS Lambda and Amazon EventBridge

Every AWS service offering comes with a pay-as-go pricing model, empowering businesses, small or large, to be flexible at experimenting and making changes as they build their products to market. This pricing model is similar to riding an Uber, where you only pay for the distance covered, or to electric bills where you’re charged based on actual energy consumption. Of course, the more devices you have running, the higher your monthly bill will be. [...]

What’s New with the SAA-C03 AWS Certified Solutions Architect Associate exam this 2022?

The AWS Training and Certification team recently announced that there’s yet another version release of its popular AWS Certified Solutions Architect Associate exam will be released this August 30, 2022. Its new exam version would be SAA-C03. Take note that the current version (SAA-C02) will only be available on August 29, 2022 so you still have time to recertify. The new SAA-C03 will be focused on Security, as shown on its official exam guide.' History of the [...]

Getting Started with SageMaker Ground Truth Private Workforce

Before we begin, let’s quickly talk about what Amazon SageMaker is and what it is used for. If this is your first time learning about Amazon SageMaker, it is the machine learning platform of AWS that helps solve the different requirements of data scientists, developers, and machine learning practitioners. It has several features and capabilities that assist in the different stages of the machine learning process. In this tutorial, we will focus on SageMaker [...]