Systems Architecture & Integration

What this service covers

Systems architecture work addresses the structural layer of a product: how services are divided, how they communicate, what data each owns, and how the system behaves under load, partial failure or changing requirements.

This is useful when starting a new platform, when a current system is becoming difficult to change or scale, or when a product has outgrown its original single-server design.

Typical work

• Architecture review of an existing system — documenting what is there and identifying structural risks
• Service decomposition — deciding which responsibilities belong to which service
• API contracts using REST or gRPC/Protobuf
• Event-driven and realtime flow design using WebSockets, SSE or messaging queues
• Data design: ownership, consistency models, indexing strategy
• Security boundary definition: what each service is trusted to do
• Deployment topology: how services are arranged, load balanced and monitored
• Resilience planning: what happens when a dependency is slow or unavailable
• Technical documentation readable by engineers, not just architects

Technology

Typical implementations may use Go for backend services, gRPC/Protobuf for inter-service communication, and PostgreSQL or Redis for state management. Real-time channels are commonly built on WebSockets or SSE. Observability typically includes structured JSON logs and health endpoints — though the specific toolchain is chosen to fit the project and team.

Outcome

A documented architecture with clear service boundaries, explicit API contracts and a deployment model that can be operated and evolved without depending on the original architect being available.