Monolith Refactoring & Domain Decomposition
Untangle entangled legacy codebases into clean, maintainable bounded contexts without rewrite risk.
Service Scope & Diagnostic Focus
Targeted refactoring strategies that isolate domain logic, establish strict API boundaries, and modernize legacy services incrementally without halting ongoing feature delivery.
Who This Engagement Is For
Teams maintaining mission-critical legacy applications where coupling slows releases and makes regression testing fragile.
Consultant Profile
Senior Systems Architect & Refactoring Specialist
Sprint-based retainer: £6,500 + VAT per 2-week advisory cycle
Delivery: 4 to 8 weeks in dedicated bi-weekly advisory sprints • Hybrid: Remote pairing, asynchronous architectural reviews, and bi-weekly milestone workshops
Key Engagement Deliverables
- Domain-Driven Design (DDD) bounded context mapping and dependency decoupling plan
- Strangler Fig migration blueprints and phased release gate protocols
- Hands-on pair programming sessions on thorny architectural seams
- Living documentation of module contracts and shared data constraints
Scope Boundaries & Logistics
- Identification of cyclic dependencies and shared database state
- Creation of clean anti-corruption layers and domain event abstractions
- Architectural coaching for lead engineers during sprint planning
- Big-bang rewrites (we strictly advise incremental, safe refactoring)
- UI redesign or non-technical product management
Structured Engagement Cadence
Domain Boundary Discovery
Mapping data ownership, identifying shared mutable tables, and defining clear service seams.
Seam Extraction & Anti-Corruption Layers
Introducing interface boundaries and event bridges to isolate domain modules safely.
Incremental Routing & Verification
Gradual execution rerouting with parity testing to ensure zero regression behavior.
Preparation & Client Requirements
Required Inputs: Access to test suite, existing architecture documentation, and product domain experts
Security & Non-Disclosure: Requires commitment from lead developers for weekly pairing and review cycles.
Estimated Turnaround: 4 to 8 weeks in dedicated bi-weekly advisory sprints with structured milestone checkpoints.