Complex systems engineering
Systems with complicated business rules, many integrations and heavy data flows — designed so that the complexity stays manageable.
When to call us
Typical situations
- Business rules are spread across the code and nobody fully understands them.
- Several systems have to stay in sync, and they don’t.
- Data volumes have outgrown the original design.
- Calculations such as pricing are slow, fragile or hard to change.
Results
Measured outcomes
Results from separate projects.
9 days to 1 hour
Synchronization of a catalog with more than 10 million items
1 hour to 10 min
Multi-level pricing calculations
Domains
Where we have worked
E-commerce · Auto parts · ERP systems · Ticketing systems · Booking systems
Scope
What’s included
Domain modeling
- Domain-driven design
- Modular, multi-component architecture
Business workflows
- Complex business workflows
- Multi-level calculations such as pricing
Integration & data
- System integrations
- Queues, asynchronous processing and synchronization
- Large-scale data processing
Process
How it works
Model
Map the domain, the rules and the data flows.
Structure
Split the system into clear modules with explicit boundaries.
Build
Implement and integrate incrementally, with tests for critical rules.
Verify
Check correctness and performance on real data volumes.
Deliverables
What you get
- A documented domain model and architecture
- Working, tested implementation
- Reliable integrations and data flows
FAQ
Frequently asked questions
Can you take over a complex system built by someone else?
Yes. Analysing and reverse-engineering existing systems is part of the work.
Do you work with legacy systems?
Yes. Many complex systems are legacy ones; we improve them step by step instead of insisting on a rewrite.
How is pricing determined?
Pricing is on request and depends on scope. Project-based work, consulting and contract engagements are all possible — describe the task and we will propose a format.
Working on a complex system?
Describe the situation in a few sentences. We reply by email, usually within two business days. Pricing on request.
Discuss your system