Serverless AWS application

Multi-Region Disaster Recovery Architecture with Implementation Oversight

Architecture + implementation oversight

Overview

Designed a multi-region disaster-recovery architecture for a serverless AWS application and provided architectural oversight while a cloud engineering team implemented the solution.

Context / Problem

A serverless AWS application needed a recoverable multi-region target that addressed traffic routing, replicated state, service dependencies, secrets, backup, and operating responsibilities. The design also needed a clear handoff to the team responsible for implementation.

My Role

I designed the disaster-recovery architecture, documented service and failover considerations, guided the delivery team through implementation decisions, and reviewed the evolving solution from an architectural perspective.

What I Did

Defined the primary and secondary-region topology, traffic-routing approach, replication paths, and recovery dependencies.
Specified the use of AWS managed services for replicated data, secrets, backup, API, and application execution.
Provided implementation oversight, answered design questions, and reviewed delivery-team decisions against the architecture.

Architecture

The primary region serves the application behind global traffic routing. Replication and resilience mechanisms prepare state and supporting services for a recovery path into a secondary region. Recovery behavior and operating responsibilities connect both sides of the design.

Multi-region recovery architectureA primary serverless region connects through replication and recovery controls to a secondary region, with design and delivery responsibilities identified.

Primary regionDesigned
Traffic routingDesigned
ReplicationDesigned
Recovery controlsDesigned
Secondary regionImplemented by delivery team
Architecture oversightDesigned
Delivery teamImplemented by delivery team

Architecture by Lukas; implementation by the cloud engineering delivery team.

Key Decisions / Trade-offs

Use service-native replication where appropriate: Managed replication capabilities reduced bespoke coordination while keeping service-specific recovery behavior explicit.
Separate design ownership from implementation ownership: Clear responsibilities allowed architectural oversight without implying hands-on delivery of every cloud component.

Implementation Scope

The multi-region architecture and implementation guidance were delivered by me. A cloud engineering team implemented the solution while I provided architectural oversight. The public case describes the design and oversight evidence rather than claiming sole implementation.

Safety / Security / Governance

The architecture considered secure routing, secrets handling, backup, data replication, service permissions, recovery operations, and ownership. Private diagrams, environment identifiers, recovery targets, and operational test material are not published.

Scope Boundary

I designed the architecture and provided implementation oversight; the cloud engineering team performed the implementation. This case does not claim my hands-on delivery of the complete solution, a formally successful failover exercise, or achieved recovery-time and recovery-point objectives.