Serverless Event-Driven Architecture (EDA)
Built for South Africa's realities: load-shedding, legacy systems, and stringent audit requirements. We engineer fault-tolerant, POPIA-ready data flows that keep working when networks and power don't.
The Technology Stack
Purpose-built AWS services that eliminate infrastructure complexity while maximizing reliability, security, and cost-efficiency.
AWS Lambda Functions
Serverless compute eliminates infrastructure management. Auto-scales instantly from zero to thousands of concurrent executions. Pay only for actual compute time—no idle server costs.
Amazon EventBridge
Central event router that decouples services. Enables real-time event-driven workflows with guaranteed delivery, dead-letter queues, and automatic retry logic.
DynamoDB & S3
Serverless data storage with infinite scalability. DynamoDB provides millisecond latency for metadata, S3 stores documents with 99.999999999% durability.
AWS Secrets Manager & KMS
POPIA-compliant encryption at rest and in transit. Automatic key rotation, audit trails, and fine-grained access control for all sensitive data.
SQS & Step Functions
Durable message queues and workflow orchestration. Events persist during outages, retry failed operations automatically, maintain exactly-once processing.
CloudWatch & X-Ray
Complete observability with distributed tracing. Track every request across services, create immutable audit logs, set alerts for compliance anomalies.
Why Serverless Architecture?
Traditional server-based infrastructure requires constant maintenance, security patching, and capacity planning. Serverless eliminates these operational burdens while providing superior reliability and cost-efficiency—critical for South African businesses navigating load-shedding and budget constraints.
Zero Infrastructure Management
No servers to patch, update, or maintain. AWS handles all infrastructure, security patches, and scaling automatically.
Cost Efficiency
Pay only for actual usage (per-millisecond billing). No costs during idle periods. Typically 70-90% cheaper than traditional servers.
Automatic Scaling
Handles load spikes automatically. Scale from 10 to 10,000 requests/second without configuration changes or performance degradation.
Built-in Fault Tolerance
AWS guarantees 99.99% availability. Automatic failover across availability zones. Your workflows continue during infrastructure failures.
Compliance by Default
All AWS services are SOC 2, ISO 27001 certified. Built-in encryption, audit logging, and access controls simplify POPIA compliance.
Engineered for Load-Shedding Resilience
Traditional Systems Fail
- ❌ On-premise servers go offline during power cuts
- ❌ In-flight requests lost permanently
- ❌ Manual intervention required to restart
- ❌ Data consistency issues during crashes
- ❌ No automatic recovery or retry logic
Our Serverless Architecture
- ✅ AWS datacenters have redundant power & generators
- ✅ Events queued durably (survive infrastructure failures)
- ✅ Automatic retries with exponential backoff
- ✅ Exactly-once processing guarantees
- ✅ Zero downtime deployments and failover
Real-World Example
When your office experiences load-shedding during a POPIA DSAR deadline, our system continues processing in AWS's South Africa region. Events queue safely, retry automatically when connectivity returns, and complete the request—while traditional systems crash and lose data.
POPIA-Compliant by Design
Every architectural decision prioritizes data protection, auditability, and regulatory compliance.
Encryption Everywhere
All data encrypted at rest (AES-256) and in transit (TLS 1.3). Encryption keys automatically rotated every 90 days via AWS KMS. Zero plaintext storage of sensitive data.
Immutable Audit Trails
Every event logged to CloudWatch with tamper-proof timestamps. Complete request tracing via X-Ray. Audit logs retained for 7 years as required by POPIA.
Data Residency Controls
All data stored in AWS Cape Town region (af-south-1). Configurable geo-restrictions prevent data from leaving South Africa. Meets POPIA cross-border transfer requirements.
Automated Data Lifecycle
Automatic data retention policies enforce POPIA requirements. Personal data automatically deleted after legal retention periods. Complete audit trail of all deletions.
Event-Driven Workflow Example: POPIA DSAR
How our architecture handles a Data Subject Access Request from receipt to fulfillment—automatically.
1. Request Received
Email/form triggers Lambda function → validates request → publishes "DSAR.Received" event to EventBridge
2. Data Discovery
Event triggers multiple Lambda functions in parallel → query CRM, database, file storage → results queued to SQS
3. Data Consolidation
Step Functions orchestrate → aggregate all data → encrypt → generate PDF report → store in S3 with expiry policy
4. Delivery & Audit
Secure download link emailed → access logged to CloudWatch → 30-day deadline met → immutable audit trail created
Key Benefits of This Approach
Zero manual work: Entire process automated from trigger to delivery
Guaranteed completion: Retries and queues ensure no failures
Audit-ready: Every step logged with timestamps and user IDs
Scalable: Handles 1 or 1,000 requests simultaneously
Your Specialist Inter-System Orchestrator for South African Compliance. We build Compliance-Optimised Integration Agents (COIAs) that transform regulatory burden into competitive advantage.
Services
Regulatory Data Flow Automation
POPIA DSAR Orchestration
B-BBEE Document Tracking
Localised Financial Connectors
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Custom Compliance Integration Services (CCIS)