IntegrationsProject rescue
Telecom web platform: complex interfaces in a critical system
- What this was
- Development and maintenance of web interfaces for an active telecom platform: tables, filters, REST APIs and a mixed legacy stack.
- My role
- Frontend, REST API integration, code review
- Period
- 2023–2025
- Outcome
- Legacy areas improved incrementally, without stopping a critical system.
Context and original problem
An operational telecom system supporting business-critical processes. The product combines Angular, AngularJS and ExtJS generations.
Business task
Add and repair functionality in a live system without disrupting critical workflows, while improving legacy areas incrementally.
Constraints and unknowns
- Angular, AngularJS and ExtJS in one product
- Business-critical data and interfaces
- Large tables, filters and complex forms
- REST API as the integration boundary
My responsibility
Frontend development, REST API integration, testing, code review and technical documentation.
Key decisions and trade-offs
- Improve legacy incrementally instead of a risky wholesale rewrite
- Test changes against real critical-system workflows
- Treat documentation and code review as part of every change
What changed
- New features and fixes shipped into active interfaces
- Legacy areas improved without stopping the product
- Core workflows verified for each release
Disclosure and outcome boundaries
Next step for a similar task
For an inherited or complex system, start with diagnosis and a risk map.