Tech Blogs - Tutorials Dojo

Automating Publications with Claude, Canva, and n8n
Every business that runs a social media page knows the same repetitive cycle. Pick a topic. Write a caption. Design a graphic. Post it on schedule. Repeat tomorrow. Multiply that by every campaign, every seasonal push, every recurring content series, and it becomes a real operational cost, not just [...]
AI Ethics Explained: How to Use Artificial Intelligence Responsibly
Have you ever used ChatGPT to help explain a difficult topic? Maybe you've asked Gemini to summarize a lengthy article, generate ideas for a school project, write an email, or even use Claude for brainstorming concepts. If you're a student, you've probably wondered: "Is it okay to use AI [...]
Fine-tuning an LLM for natural Tagalog speech
If you're an ML engineer or a technical lead planning to pre-train a large language model (LLM) for Tagalog or Taglish, how do you start? In this article, we walk through the process of defining a target voice, building a data pipeline, running a QLoRA training experiment, and evaluating [...]
Building Diffender: A Serverless AI Security Reviewer for GitHub Pull Requests with Amazon Bedrock
A pull request can pass its tests, satisfy its acceptance criteria, and still expose a production credential in one line of code. Diffender is an Amazon Bedrock pull request reviewer built to identify that kind of risk before the change reaches the main branch. However, human review remains essential, [...]
AWS Certification Maintenance: Recertify Without an Exam
Many AWS-certified professionals face the same challenge every few years: preparing for another certification exam while balancing work, projects, and personal commitments. While certifications remain a valuable way to validate cloud expertise, the traditional recertification process can be time-consuming and stressful. To address this, AWS has introduced a new [...]
CCDV-F Claude Certified Developer Foundations Study Guide
Bookmarks CCDV-F Exam Domains CCDV-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Developer – Foundations (CCDV-F) certification is designed for technical professionals who build, [...]
CCAR-P Claude Certified Architect Professional Study Guide
Bookmarks CCAR-P Exam Domains CCAR-P Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Architect – Professional (CCAR-P) certification is designed for experienced professionals who build [...]
CCAO-F Claude Certified Associate Foundations Study Guide
Bookmarks CCAO-F Exam Domains CCAO-F Study Materials Claude Features to Focus On Key Exam Topics by Domain Important Skills Validate Your Readiness Final Remarks The Claude Certified Associate – Foundations (CCAO-F) certification is designed for professionals who use Claude [...]
CI/CD Crash Course: From Junior to Senior Developer
Continuous Integration and Continuous Delivery/Deployment (CI/CD) is the backbone of modern software teams. It's not just a buzzword for your resume — it's the automated pipeline that takes code from "it works on my machine" to "it works in production, reliably, every time." Understanding CI/CD deeply, not just using [...]
Everything You Need to Know About Harness Engineering
AI agents can now write code, browse the web, and run for hours without a human watching. Ask one to build a feature, and it might open ten files and call five tools. It can make a hundred small decisions before it ever shows you a result. That is [...]

SRA Toolkit + AWS: Revolutionizing Bioinformatics Data Prep

It takes too long. It’s boring. I want the good stuff already… Sounds familiar? These statements are not entirely wrong, but data preparation in any kind of data analytics job is still important and must be executed carefully. This is an important step that can easily take up to 80% of the total working time of a project. For insightful results, the data must be prepared properly, and this article will be about the [...]

Mastering Prompt Engineering for AWS Large Language Models (LLMs)

In the rapidly evolving world of Artificial Intelligence (AI) and Machine Learning (ML), Prompt Engineering has become a cornerstone skill for effectively harnessing the power of Large Language Models (LLMs). These models transform industries, power intelligent chatbots, automate workflows, and redefine customer experiences. Yet, the key to unlocking their full potential is crafting clear, precise prompts tailored to specific tasks. Far from being a mere technical skill, Prompt Engineering shapes the interaction between humans [...]

Monitoring Amazon SES Complaint Rates with CloudWatch Alarms and Real-Time Slack Notifications

Amazon Simple Email Service (SES) is a powerful tool for sending high volumes of emails quickly and efficiently. However, to maintain your email-sending capabilities and ensure high deliverability, it's essential to monitor your sender's reputation closely. One key metric for assessing this reputation is the Complaint Rate, which measures how often recipients mark your emails as spam. A high complaint rate can lead to your emails being filtered into spam folders, throttling, or even [...]

Methods in Evaluating Foundation Model Performance

A foundation model is a large-scale, pre-trained artificial intelligence model that serves as a general-purpose system for various downstream tasks. These models, such as GPT for natural language processing or CLIP for vision-language understanding, are trained on extensive datasets and can be fine-tuned or adapted to specific applications. Foundation models are characterized by their ability to generalize across tasks, making them highly versatile and impactful in AI-driven solutions. Evaluating these models' performance is essential to [...]

Amazon SES Complaint Rate: What It Is and How to Manage It

Email remains one of the most effective ways of communication for businesses in today's digital age. It allows you to reach out to current and potential customers through newsletters, promotions, important information, and updates about your products and services. Whether it is to keep your customers engaged, promote your new offerings, or send transactional messages like order confirmations and such, email is a simple yet very powerful approach to improve your connection with clients [...]

Retrieval-Augmented Generation (RAG) for Foundation Model Customization

Artificial Intelligence (AI) has rapidly advanced, pushing the limits of what machines can accomplish. However, one significant challenge remains: ensuring that AI responses are both accurate and contextually relevant while being up-to-date. This is where Retrieval-Augmented Generation (RAG) comes in—a cutting-edge approach that integrates the capabilities of data retrieval with advanced AI generation techniques. In this blog, we will explore the details of RAG, discussing its benefits, applications, and how to implement it using [...]

Security in AWS Data Engineering: Best Practices and Strategies

Bookmarks The AWS Shared Responsibility Model Use AWS Data Encryption Use Identity and Access Management (IAM) Implement Network Security Monitoring and Logging Compliance Standards Data Governance Secure Data Storage Backup and Disaster Recovery Automating Security Practices Conclusion: Proactive Security Measures for Data Engineers References In today's world of Cloud Computing, data engineering security and compliance are very important for [...]

Understanding Your API: The API-verse

In this blog, I will guide you through understanding the various types of APIs. You'll learn about different API classifications you can use for your next project and when to implement each one. This high-level overview of API varieties will expand your knowledge and help you become well-versed in how each API functions. What is an API? (Application Programming Interface) An API or Application Programming Interface acts as a bridge between different software allowing [...]

PartyRock: AI Python Code Checker for Tech Interview Simulation

Bookmarks What is Party Rock? AI Code Checker Tools Comparison UI Components of our PartyRock-based Python Code Checker Python Interview Topics Covered by the PartyRock app Use-cases and Applications of PartyRock-based Python Code Checker Hands-on Exercise: Getting Started with PartyRock Final Remarks References Are you a recent college graduate or someone transitioning into a tech career, striving to succeed in coding interviews focused [...]

Implementing IP Blocking and Unblocking Using AWS Lambda, Slack, and AWS Systems Manager

Blocking IP addresses is a crucial security measure for protecting an organization's infrastructure from various cyber threats, including DDoS attacks, brute-force login attempts, and unauthorized access. By blocking malicious or suspicious IPs, organizations can prevent system compromise, reduce unwanted traffic, and ensure that only trusted networks access critical resources. This helps maintain the performance and stability of the systems while ensuring compliance with security policies. Automating IP blocking using AWS Lambda and AWS Systems [...]