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CrowdBuzz

Real-time engagement platform for virtual events.

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Company:

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CrowdBuzz is a fast-growing digital engagement platform enabling real-time polling, interactive audience experiences, and live engagement tools for large-scale virtual and hybrid events.

Industry

Event Tech, Audience Engagement, Real-Time Polling

Services

ECS Fargate (Graviton), S3, ALB, Route53, VPC, IAM, Secrets Manager, ACM, CloudWatch, GitHub Actions

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Business Requirements

CrowdBuzz needed a modern infrastructure to support their growing platform:

• Scalable infrastructure to handle large traffic spikes during live events
• Cost reduction through optimized compute resources
• High availability with automated deployments
• Enhanced security with centralized secrets management
• Automated CI/CD pipelines for faster releases
• IAM-based access control and encrypted data transmission
• Fault-tolerant architecture with minimal downtime

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The Challenge

1. Monolithic EC2 Setup
• All services were tightly coupled and deployed manually on EC2 instances.
• No auto-scaling or resource optimization, leading to overprovisioning and inflated costs.
• Application updates required SSH access and manual restarts, causing delays and downtime.

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The Solution

Infrastructure Rebuild Using AWS Best Practices

• A fresh VPC was created with Public and Private subnets across multiple AZs
• Route Tables, Internet Gateway, NAT Gateway, and VPC Endpoints were provisioned for a secure and scalable architecture
• Isolated environments for development, staging, and production were established

ECS Fargate with Graviton Migration

• All EC2 workloads were containerized and deployed using Amazon ECS with Fargate
• Graviton-based tasks helped reduce compute costs while improving performance
• Services were attached to an Application Load Balancer for intelligent routing and health checks

Secrets Management & Security

• AWS Secrets Manager was used to securely inject environment variables into ECS tasks
• IAM roles with least privilege access were assigned to ECS services
• ACM was implemented to enable SSL/TLS encryption across all services

CI/CD Automation with GitHub Actions

• Self-hosted GitHub Actions runners are deployed within the CrowdBuzz infrastructure for fast and secure CI/CD
• Automated build, test, and deploy workflows were integrated with ECS to ensure zero-downtime releases
• Artifacts and images were stored securely in Amazon ECR

Result

Scalability and Reliability
  • ECS and Fargate enabled seamless horizontal scaling during traffic spikes.
  • ALB and health checks ensured zero-downtime deployments and robust failover mechanisms.
Cost Optimization
  • Migrating from EC2 to ECS with Graviton led to a 35% reduction in compute costs.
  • Removal of unused EC2 volumes, EIPs, and manual resources eliminated unnecessary billing.
Improved Security and Compliance
  • Secrets were centrally managed with encryption and rotation.
  • All endpoints used HTTPS with ACM-managed certificates.
  • IAM and VPC best practices minimize security exposure.
Developer Velocity
  • CI/CD automation reduced manual deployment time by 70%.
  • Self-hosted runners deliver fast and secure builds without relying on shared runners.
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