AWS and Cloud Engineering
Practical guides to load balancing, scaling, deployment, and resilient AWS foundations.
TechEazy field notes
Practical guides for building in tech
Clear, hands-on notes on cloud engineering, Java and Spring, GitHub collaboration, and the career foundations that make technical work credible. Free to read, no sign-up.
Java and Spring Engineering
Build a sound Java foundation, then apply Spring Boot, dependency injection, MVC, and REST.
Git and GitHub Collaboration
Learn repository, branch, pull-request, protection, and delivery workflows used by engineering teams.
Technology Career Foundations
Durable guidance for choosing core skills, presenting your work, and building credible career evidence.
5 free courses · no sign-in
Want the full path? Take a free course
Every session is public: open a course and start. Nothing to sign up for, nothing to pay.
FreeBeginner
Hands-on Cloud for Freshers
8 sessions · self-paced · read online
Eight hands-on sessions on AWS for freshers: a safe account, permissions, storage, servers, networks, a database and serverless code, ending in a small app you deploy and then tear down.
FreeBeginner
Getting Started with AI
8 sessions · self-paced · read online
Eight sessions on how language models really behave: tokens and sampling, cost and latency, prompts and context, structured output, choosing a provider, and using AI responsibly.
FreeIntermediate
Build and Evaluate RAG Applications
8 sessions · self-paced · read online
Eight sessions on retrieval-augmented generation: embeddings and vector search, grounded answers with citations, why retrieval fails, evaluation suites and catching hallucinations.
FreeIntermediate
Building AI Agents
11 sessions · self-paced · read online
Eleven sessions on agents that take real actions: tool calling, the Model Context Protocol, the agent loop, memory, access control, human approval and guardrails, ending in a capstone feature.
FreeIntermediate
Taking AI to Production
9 sessions · self-paced · read online
Nine sessions on running AI systems for real: where models run, reference architectures, scaling, cost, observability and audit, ending in a design you defend with decision records.
All 36 guides
AWS and Cloud Engineering
Signing the AWS CLI in without access keys, then proving a policy in the simulator
Oct 15, 2026
You have just installed the AWS CLI, and the setup guide asks you to paste in an access key ID and secret. That leaves a long-lived secret sitting in
AWS and Cloud Engineering
How to find the closed port that stops an EC2 web page loading, and lock down SSH
Oct 14, 2026
You launched an Amazon EC2 instance, installed a web server, and typed its public address into a browser. The tab spins and then times out. Nothing on
AWS and Cloud Engineering
Loading Database Credentials into Spring Boot Without Packaging Them
Oct 11, 2026
Where a Spring Boot app on AWS should keep its database password, when to pick Secrets Manager or Parameter Store, and how to load it with spring.config.import.
AWS and Cloud Engineering
How to set up a new AWS account so a mistake cannot quietly cost you money
Oct 10, 2026
You have just created an AWS account. The console is open, and there are hundreds of services one click away. One fear stops most people here: that a
AWS and Cloud Engineering
How to explain protecting the AWS root user and everyday admin access in an interview
Oct 8, 2026
The interviewer leans back and asks: "You've just created a new AWS account. What's the first thing you do about security?" Many freshers answer
AWS and Cloud Engineering
Amazon S3 Web Hosting: How to Host a Static Website on AWS S3 (Step by Step)
Oct 7, 2026
Host a static website on Amazon S3 step by step: bucket, Block Public Access, bucket policy, website endpoint, HTTPS options, common errors and an S3 hosting FAQ.
AWS and Cloud Engineering
How a language model turns one prompt into two different answers
Oct 7, 2026
Send an AI the same ticket twice and get two replies. See what the model computes each time and which setting decides the difference.
AWS and Cloud Engineering
How AI Agents Use Tools, Memory, and MCP to Get Work Done
Oct 7, 2026
How AI agents on AWS pick tools, keep memory and use MCP to finish real tasks, explained for engineers new to agentic AI.
Git and GitHub Collaboration
Spring Boot Git Setup: Push Your Project to GitHub
Oct 7, 2026
Link a Spring Boot project to a GitHub repository with Git: a .gitignore for target/ and secrets, an empty repo, the origin remote, then token or SSH login.
AWS and Cloud Engineering
What Is an Auto Scaling Group in AWS? EC2 ASG Beginner's Guide, With FAQ
Oct 7, 2026
What an AWS Auto Scaling group (ASG) is, with a worked example: min, desired and max capacity, launch templates, health checks, target tracking and an ASG FAQ.
AWS and Cloud Engineering
AWS Elastic Load Balancer (ELB) Beginner's Guide: ALB vs NLB vs GWLB, With FAQ
Oct 1, 2026
How AWS Elastic Load Balancing works, with a worked example, ALB vs NLB vs GWLB compared, listeners, target groups, health checks and an ELB FAQ.
Technology Career Foundations
Forward-Deployed Engineer vs Solutions Architect: A Side-by-Side Comparison
Oct 1, 2026
FDE vs solutions architect compared: what each role owns, how much code each writes, how they work with customers, the skills each needs, and how to choose.
Git and GitHub Collaboration
Git Push, Clone and Login with a GitHub Personal Access Token (PAT)
Oct 1, 2026
Use a GitHub personal access token to push, clone and log in over HTTPS: create the token, paste it at Git's password prompt, and store it safely.
Git and GitHub Collaboration
GitHub Branch Protection Rules vs Rulesets: Why and How to Use Them
Oct 1, 2026
Rulesets or classic branch protection? Compare the two, set a baseline for main, avoid the required-status-check trap, and test your rules before trusting them.
AWS and Cloud Engineering
RAG or Fine-Tuning on AWS: Which Customization Fits, and What It Costs
Oct 1, 2026
When to use RAG with an AWS vector store instead of fine-tuning a foundation model: facts versus behaviour, Bedrock Knowledge Bases, vector store choice and the cost ladder.
Technology Career Foundations
Changing to AI/ML Engineering After Five Years in Another Technical Role
Aug 8, 2026
A grounded transition plan for backend, QA, DevOps, and other technical professionals moving into applied AI work without starting their careers over.
Technology Career Foundations
From Backend Developer to Forward-Deployed Engineer: A Realistic Timeline
Aug 8, 2026
A four-to-six-month part-time shape for backend developers moving toward FDE work through AI fluency, codebase delivery, and inspectable evidence.
Technology Career Foundations
How to Become a Forward-Deployed Engineer Without a CS Degree
Aug 8, 2026
A practical path for experienced software professionals who want to move into client-facing AI delivery without treating a degree as the whole credential.
Technology Career Foundations
Is an AI/ML Bootcamp Worth It for Experienced Professionals?
Aug 8, 2026
A decision framework for experienced technical professionals evaluating an AI/ML program: inspect the sequence, evidence, feedback loop, and claims.
Technology Career Foundations
What a Cloud/AI Solutions Architect Actually Does Day to Day
Aug 8, 2026
A practical look at the recurring work behind Cloud/AI Solutions Architect roles: discovery, system choices, risk, cost, and technical communication.
Technology Career Foundations
Building Your Career in Tech: Resume Building, Freelancing, and Personal Branding
Aug 7, 2026
Turn verifiable projects into clearer resume bullets, a reviewable GitHub portfolio, an honest professional profile, and a scoped freelance offer.
Java and Spring Engineering
Building Your First Spring Boot App: A Complete Guide to MVC Architecture and REST Controllers
Aug 7, 2026
Build a small Spring Boot task API and understand how MVC request mapping, a service layer, constructor injection, and JSON responses fit together.
Java and Spring Engineering
Creating Your First Spring Application
Aug 7, 2026
Create and run a first Spring Boot REST application with Java 17+, Spring Initializr, Maven, and one small JSON endpoint.
AWS and Cloud Engineering
Deploy a Spring Boot App on AWS EC2 With a Load Balancer: Step-by-Step Guide
Aug 7, 2026
Deploy a Spring Boot JAR to EC2, run it as a service, and route traffic through an AWS Application Load Balancer with safe health checks.
Git and GitHub Collaboration
GitHub Mastery: Creating Repositories and Managing PRs With Ease
Aug 7, 2026
Create a GitHub repository, work on a topic branch, open a clear pull request, respond to review, and merge with confidence.
Technology Career Foundations
Launch Your IT Career With Core Tech Skills
Aug 7, 2026
A beginner roadmap for programming, web APIs, Git, data, testing and deployment—built around one progressive, reviewable project.
Java and Spring Engineering
Master Core Spring Boot Concepts: Inversion of Control, Dependency Injection, and Your First Application
Aug 7, 2026
Understand Spring IoC, beans, component scanning, and constructor injection through a small Spring Boot example that is easy to test.
Java and Spring Engineering
Mastering Spring Boot MVC and REST APIs: A Comprehensive Guide
Aug 7, 2026
Improve a Spring Boot REST API with request DTOs, Bean Validation, correct HTTP status codes, centralized errors, and focused MVC tests.
Git and GitHub Collaboration
Repositories, Branches, and Pull Requests
Aug 7, 2026
Understand how Git repositories, commits and branches relate to GitHub remotes, default branches, and pull requests.
AWS and Cloud Engineering
Scaling Spring Boot With an Auto Scaling Group (ASG) and Elastic Load Balancer (ELB)
Aug 7, 2026
Scale a Spring Boot service on AWS with a versioned launch template, EC2 Auto Scaling Group, ALB target group, health replacement, and target tracking.
AWS and Cloud Engineering
TechEazy Consulting Launches Comprehensive Java, Spring Boot & AWS Training Program With 2-Month Free Internship
Aug 7, 2026
An archived announcement of TechEazy's former Java, Spring Boot, AWS training and internship offer; its old terms are not currently available.
Java and Spring Engineering
Understanding Classes and Objects in Java: A Drive Through the Basics
Aug 7, 2026
Learn the difference between Java classes and objects with a complete Car example covering fields, constructors, methods, and independent state.
AWS and Cloud Engineering
Securely Host Website with AWS CloudFront + Private S3 + Route 53 (Custom Domain + HTTPS)
Sep 2, 2025
Serve a static site from a private S3 bucket through CloudFront with Route 53 and HTTPS, instead of exposing the bucket publicly.
AWS and Cloud Engineering
Connect Custom Domain to AWS S3 Website using Route 53
Sep 1, 2025
Replace the long default S3 website URL with your own domain using Route 53, and verify the mapping resolves.
AWS and Cloud Engineering
Deploy Static HTML/CSS Website to AWS S3 with CI/CD (GitHub Actions)
Sep 1, 2025
Automate static-site deploys to S3 with GitHub Actions, so a push publishes the site instead of a manual upload.
Git and GitHub Collaboration
Introduction to Git and GitHub: A Beginner’s Guide
Sep 1, 2025
What Git and GitHub each actually do, how they differ, and why version control matters — explained without code.