Mandatory Skills and responsibilities for AWS Cloud Engineer — Fresher Level

Core AWS Services 

A fresher should have a strong understanding of these core AWS services:

Category	AWS Service	What You Should Know
🖥️ Compute	EC2	Launching servers, SSH, AMI, instance types, EBS
📦 Storage	S3	Buckets, objects, versioning, policies, lifecycle
🌐 Networking	VPC	Subnets, Internet Gateway, NAT Gateway, Route Tables, Security Groups
🔐 Security	IAM	Users, groups, roles, policies, MFA, least privilege
🗄️ Database	RDS	MySQL/PostgreSQL, backups, Multi-AZ, security
⚡ Serverless	Lambda	Functions, triggers, execution roles, basic Python
⚖️ Load Balancing	ELB / ALB	Traffic routing, target groups, health checks
📊 Monitoring	CloudWatch	Metrics, logs, alarms, monitoring
🌍 DNS	Route 53	DNS records, hosted zones, domain routing
🚀 CDN	CloudFront	CDN basics, caching, HTTPS, content delivery

📌 Interviewers commonly ask scenario-based questions, such as:

“How would you make a web application highly available?”

“How would you secure an EC2 server?”

“What happens when an EC2 instance becomes unhealthy?”

Linux + Networking Fundamentals — Must Know

AWS Cloud Engineers frequently work with Linux servers, so Linux and networking basics are essential.

🐧 Linux

You should know:

• SSH
• File and directory management
• Users and groups
• File permissions (chmod, chown)
• Processes and services
• Package installation
• Disk and memory checking
• Basic shell commands
• Basic Bash scripting

🌐 Networking

You should understand:

• IP addresses
• Public vs Private IP
• Subnetting
• DNS
• TCP/IP
• HTTP/HTTPS
• Ports
• NAT
• Routing
• Load Balancers
• Security Groups
• Network ACLs

📌 Important: Don't just memorize networking terms. Understand how traffic moves from a user's browser to an AWS application.

Hands-on Practical Skills 

Recruiters generally value practical AWS experience, not only theoretical knowledge.

A fresher should be able to complete projects such as:

🌐 Deploy a Website

• Host a static website using S3
• Launch an EC2 web server
• Install Apache/Nginx
• Connect EC2 → RDS
• Configure Route 53
• Understand SSL/HTTPS using ACM

🔐 Secure AWS Infrastructure

• Create IAM users and roles
• Attach IAM policies
• Use IAM roles with EC2
• Configure Security Groups
• Follow the Least Privilege Principle
• Never expose AWS access keys unnecessarily

🏗️ Build a Basic AWS Architecture

For example:

User → Route 53 → Load Balancer → EC2 → RDS

You should be able to explain what each component does and why it is used.

Git + CI/CD + DevOps Basics

Modern cloud jobs often combine AWS + DevOps skills.

🔧 Git & GitHub skills

Learn:

• git clone
• git add
• git commit
• git push
• git pull
• Branches
• Merge
• Pull Requests

🚀 CI/CD Basics

Understand:

• What CI/CD means
• Build → Test → Deploy process
• Automated deployment
• GitHub Actions
• AWS CodePipeline
• Jenkins basics

🐳 Docker

Learn:

• What is a container?
• Docker image vs container
• Dockerfile
• Build an image
• Run a container
• Push an image to a registry

📌 For a fresher, basic Docker knowledge is usually enough initially.

Infrastructure as Code -

You should understand how to create AWS infrastructure using code instead of manually creating everything in the AWS Console.

Learn at least one:

• Terraform 
• AWS CloudFormation

You should understand:

• What is Infrastructure as Code (IaC)?
• Create a VPC using code
• Create EC2 using code
• Create Security Groups
• Variables
• Outputs
• Basic Terraform commands

For example:

Terraform → VPC → Subnet → EC2 → Security Group

Programming / Scripting 

You don't need to become a software developer, but one scripting language is important.

🐍 Python — Recommended

Learn:

• Variables
• Conditions
• Loops
• Functions
• Lists and dictionaries
• Reading files
• Basic exception handling
• Using APIs

AWS Automation-

You should be able to:

• Run AWS CLI commands
• Automate simple AWS tasks
• Write a basic Lambda function
• Use Python with AWS services

📌 Python + AWS CLI + Lambda is a very useful combination for a fresher.

AWS Security — Must Know

Security is one of the most important areas in cloud engineering.

Understand:

• IAM Users
• IAM Roles
• IAM Policies
• MFA
• Least Privilege
• Security Groups
• Network ACLs
• Encryption basics
• S3 bucket permissions
• Secrets and credentials
• AWS KMS basics

⚠️ Never hard-code AWS access keys in GitHub repositories.

Monitoring + Troubleshooting — Must Know

A Cloud Engineer should know how to identify and troubleshoot basic problems.

📊 CloudWatch

Learn:

• Metrics
• Logs
• Alarms
• CPU utilization
• Application logs
• Basic dashboards

🔍 Troubleshooting Examples

You should know how to investigate:

• EC2 server is unreachable
• Website is not opening
• Port is blocked
• Application is running but not accessible
• EC2 cannot connect to RDS
• IAM user does not have permission
• High CPU usage
• S3 access denied

Cloud Architecture Basics

At fresher level, you should understand how AWS services work together.

For example:

             Users
                ↓
           Route 53
                ↓
          CloudFront
                ↓
        Load Balancer
                ↓
        ┌───────┴───────┐
       EC2             EC2
        └───────┬───────┘
                ↓
               RDS

You should be able to explain:

• Why use a Load Balancer?
• Why use multiple EC2 instances?
• Why use RDS instead of installing a database manually?
• Why use private subnets?
• Why use CloudFront?
• How to make an application highly available?

Soft Skills + Interview Skills

Technical knowledge alone is not enough.

Develop these skills:

• Explain technical concepts in simple English
• Read and understand architecture diagrams
• Explain “Why did you choose this AWS service?”
• Troubleshoot problems step-by-step
• Communicate security concerns
• Explain your projects clearly
• Understand basic cost optimization

Most Important Fresher Skill Set

If you want to prepare for an AWS Cloud Engineer Fresher interview, prioritize these:

AWS Core Services → Linux → Networking → IAM/Security → Git → Docker → Python → Terraform → CI/CD → Troubleshooting

Ideal Fresher Project

Build one complete project rather than many small projects:

Route 53 → Load Balancer → EC2 → RDS

Then add:

IAM + Security Groups + CloudWatch + GitHub + Docker + Terraform

If you can build it, troubleshoot it, and explain why each AWS service is used, you'll have a much stronger fresher-level AWS profile. 

The mandatory skills for an AWS Cloud Engineer at Fresher Level in Simple english

 Most Important Skills for a Fresher

If you are preparing for an AWS Cloud Engineer fresher job, focus first on:

1. AWS EC2
2. AWS S3
3. IAM
4. VPC & Networking
5. Linux
6. AWS CLI
7. Git & GitHub
8. CloudWatch
9. Docker
10. Basic Terraform

Practical Skills for AWS

A fresher should ideally have 2–3 small AWS projects, for example:

• Host a website on EC2
• Store website files/backups in S3
• Create a VPC with public and private subnets
• Deploy a simple application using Docker
• Create AWS infrastructure using Terraform

Skill	What a Fresher Should Know
AWS Basics	Understand what AWS is and why companies use cloud services.
EC2	Know how to create, start, stop, and connect to an EC2 server.
S3	Understand cloud storage, buckets, objects, permissions, and basic file management.
IAM	Know users, groups, roles, policies, and basic AWS security.
VPC	Understand basic networking concepts such as VPC, subnet, route table, Internet Gateway, and security groups.
Linux	Know basic Linux commands such as ls, cd, cp, mv, rm, cat, grep, chmod, and sudo.
Networking Basics	Understand IP addresses, DNS, ports, HTTP/HTTPS, TCP/IP, and basic routing.
AWS CLI	Know how to use basic AWS commands from the terminal.
Git & GitHub	Understand repositories, clone, commit, push, pull, and branches.
CloudWatch	Know how to check AWS server performance, logs, and basic monitoring.
Load Balancer	Understand the basic purpose of distributing traffic between servers.
Auto Scaling	Understand how AWS can automatically increase or decrease servers based on demand.
RDS	Know the basics of managed databases such as MySQL or PostgreSQL on AWS.
Security Basics	Understand least-privilege access, security groups, IAM policies, and keeping credentials safe.
Docker Basics	Understand containers, images, Dockerfile, and basic Docker commands.
CI/CD Basics	Understand the basic idea of automatically building, testing, and deploying applications.
Terraform Basics	Basic knowledge of Infrastructure as Code and creating AWS resources using Terraform is a strong advantage.
Troubleshooting	Be able to identify common issues with servers, networking, permissions, and applications.