Integration Architecture
Reference architectures, patterns and roadmaps aligned to your mission and technology landscape.
Learn moreEngineering in Action
Real world examples of how we design, build and deliver secure sovereign solutions for complex mission outcomes.
Sovereign
Australian data, Australian control
Secure by Design
Built to IRAP, ASD and Zero Trust principles
Mission Focused
Outcomes over outputs. Delivery over slideware.
Engineering First
Pragmatic. Scalable. Built for the real world.
Systems integration
System Integrations
Integrate today. Operate with confidence. Scale for tomorrow.
SolStak delivers disciplined end-to-end systems integration — connecting legacy, cloud, operational technology and mission platforms through secure, scalable integration layers built for Defence and government.
Secure by Design
Integration built with security controls from the ground up.
Connect Anything
Legacy, cloud, OT and partner systems — unified.
Scalable & Resilient
Architectures that grow with mission demand.
Open & Flexible
Standards-based integration without vendor lock-in.
Mission Focused
Outcomes over outputs. Delivery over slideware.
What we do
SolStak brings deep technical expertise and proven integration methodologies to design, build and operate integration solutions that deliver real outcomes.
- Integration Architecture — secure, scalable architectures aligned to business and mission needs.
- Systems Integration — connect applications, data, services and infrastructure across boundaries.
- Data Integration — unify and standardise data to improve visibility and decision-making.
- API & Service Integration — secure APIs and integration layers that enable interoperability.
- Security Integration — embed controls, identity and compliance into integration layers.
- Modernisation & Optimisation — migrate, consolidate and modernise while reducing complexity.
Our integration approach
Discover
Understand your environment, needs and constraints.
Design
Architect secure, scalable and future-ready solutions.
Build
Engineer and integrate systems with quality and precision.
Assure
Test, validate and prove security and resilience.
Operate
Operate, support and continuously improve for long-term value.
Typical integration scenario
Sources
- Legacy systems
- Applications
- Databases
- Files & documents
- External partners
- IoT / edge devices
Integration layer
- API gateway
- Integration services
- Message broker
- Data transformation
- Orchestration
Security · Governance · Monitoring · Logging
Destinations
- Enterprise applications
- Data platforms / analytics
- Cloud services
- Operational systems
- Users & devices
Why SolStak
- Proven delivery across complex, high-assurance environments.
- Deep expertise in architecture, engineering and security.
- Vendor-agnostic and technology-neutral approach.
- Focus on outcomes, not just technology.
- Australian owned and operated with local accountability.
We integrate what matters — so you can focus on your mission.
Our Systems Integration Capabilities
End-to-end capability to design, build and operate integration solutions for complex enterprise and mission environments.
API & Service Integration
REST, event-driven and microservice integration with governance and lifecycle management.
Learn moreData Integration
ETL, streaming, master data and real-time sync across heterogeneous systems.
Learn moreCloud Integration
Hybrid and multi-cloud connectivity with sovereign and IRAP-aligned patterns.
Learn moreSecurity Integration
IAM, encryption, policy enforcement and secure data exchange across boundaries.
Learn moreMonitoring & Observability
End-to-end visibility across integration flows, APIs and operational pipelines.
Learn moreIntegration That Powers What Matters
From legacy modernisation to real-time mission data — our engineers connect your systems so you can focus on outcomes, not interfaces.