Top 25 AWS Services You Must Know in 2025
Top 25 AWS Services You Must Know in 2025: Discover the top 25 AWS services in 2025 every cloud engineer should know. Learn how EC2, S3, Lambda, RDS, and others power cloud solutions. Includes official AWS documentation links.
1. Amazon EC2 (Elastic Compute Cloud)
Amazon EC2 offers resizable compute capacity in the cloud, letting you run virtual machines with your choice of OS, memory, storage, and CPU. It’s ideal for hosting web applications, custom backend services, or enterprise software. You can scale instances automatically based on load.
2. Amazon RDS (Relational Database Service)
Amazon RDS simplifies setting up, operating, and scaling relational databases in the cloud. It supports databases like MySQL, PostgreSQL, Oracle, and SQL Server. It automates backups, patching, and failovers, making it highly available and cost-effective.
3. Amazon S3 (Simple Storage Service)
S3 offers highly scalable, durable object storage with 99.999999999% availability. It’s perfect for storing static website files, backups, logs, or data lakes. It integrates well with other AWS services for seamless data workflows.
4. AWS Lambda
Lambda is a serverless compute service that lets you run code without provisioning servers. You pay only for the compute time used. It’s triggered by events like S3 uploads, DynamoDB streams, or API Gateway calls.
5. Amazon CloudFront
CloudFront is a global content delivery network (CDN) that speeds up the delivery of websites, APIs, and videos. It caches content at edge locations to reduce latency and improve performance. It supports SSL, geo-restriction, and real-time metrics.
6. Amazon S3 Glacier
S3 Glacier is ideal for storing infrequently accessed data like backups and archives at very low cost. You can retrieve data within minutes to hours depending on the retrieval option selected. It’s integrated with S3 lifecycle policies for automated archival.
7. Amazon SNS (Simple Notification Service)
SNS is a fully managed pub/sub messaging service for decoupling microservices. It can deliver messages to subscribers via SMS, email, SQS, or Lambda. It’s commonly used for sending alerts or triggering workflows.
8. Amazon EBS (Elastic Block Store)
EBS provides block-level storage volumes for EC2 instances, functioning like hard drives. It supports both SSD and HDD types and offers features like snapshots, encryption, and IOPS optimization.
9. Amazon VPC (Virtual Private Cloud)
VPC lets you create isolated networks within AWS with your custom IP ranges, route tables, and subnets. You can configure public/private subnets, NAT gateways, and security groups to control traffic flow.
10. Amazon Kinesis
Kinesis is used for real-time data streaming, ingestion, and processing. It’s perfect for building dashboards, monitoring systems, or real-time analytics from IoT devices, logs, or app activity.
11. AWS Auto Scaling
Auto Scaling automatically adjusts your compute resources based on traffic and load. It ensures high availability and cost-efficiency by scaling EC2 instances, containers, and DynamoDB tables.
12. AWS IAM (Identity and Access Management)
IAM manages user identities and access permissions to AWS services. You can create fine-grained policies, assign roles to users or services, and enable secure multi-factor authentication (MFA).
13. Amazon SQS (Simple Queue Service)
SQS is a message queuing service that enables decoupled, distributed systems. It ensures that messages between components are delivered reliably and asynchronously.
14. AWS Elastic Beanstalk
Elastic Beanstalk is an easy-to-use service for deploying web apps and services. It handles the provisioning of infrastructure like EC2, RDS, and load balancers automatically.
15. Amazon DynamoDB
DynamoDB is a serverless NoSQL database known for low latency and high performance. It’s suitable for real-time applications, gaming backends, IoT, and e-commerce platforms.
16. Amazon ElastiCache
ElastiCache offers in-memory data caching using Redis or Memcached. It’s used to speed up dynamic websites and applications by offloading database requests.
17. Amazon Redshift
Redshift is a fast, fully managed data warehouse that makes it simple to analyze large datasets using SQL. It integrates with S3, QuickSight, and many BI tools.
18. Amazon SageMaker
SageMaker is a fully managed machine learning platform. It allows developers and data scientists to build, train, and deploy ML models quickly and at scale.
19. Amazon Lightsail
Lightsail provides a simplified way to launch virtual private servers with pre-configured operating systems and applications. It’s ideal for small websites, test environments, or lightweight workloads.
20. Amazon EFS (Elastic File System)
EFS is a serverless, scalable file storage that can be shared across multiple EC2 instances. It’s useful for content management systems, big data analytics, and lift-and-shift applications.
21. Amazon CloudWatch
CloudWatch collects metrics, logs, and events, giving you real-time observability into your AWS resources and applications. It supports setting alarms and automating responses to system changes.
22. Amazon Chime
Chime is a communication service for meetings, video conferencing, and chat. It integrates with business applications for unified communication needs.
23. AWS Cloud Directory
Cloud Directory enables you to build flexible, cloud-native directories for organizing hierarchical data like org charts or device registries.
24. Amazon Cognito
Cognito provides secure user sign-up, sign-in, and access control for web and mobile apps. It supports social identity providers and federated access.
25. Amazon Inspector
Inspector is an automated vulnerability assessment service that scans your EC2 instances and container images for security issues. It’s used for continuous compliance and hardening your environment.
📘 Conclusion
These top 25 AWS services are the foundation of modern cloud computing architectures. Whether you’re launching microservices, building full-stack apps, handling big data, or working with AI/ML—AWS has a tool for every need. Mastering these services will boost your cloud fluency and give you a competitive edge in today’s tech landscape.
📚 Explore more on the official AWS documentation portal:🔗 https://docs.aws.amazon.com/
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