Monolith Decomposition & Strangler Migration Advisory
Step-by-step architectural planning and incremental boundary extraction for tightly coupled core systems without interrupting business operations.
Engagement Summary
- Duration: 6 to 16 weeks engagement roadmap
- Delivery Mode: Hybrid architectural advisory, code review sessions, and weekly steering committees
- Location: On-site in Taiwan (Taipei/New Taipei City) and secure remote access
- Investment Basis: Milestone-based advisory contract (from NT$ 280,000 / stage)
Target Audience & Outcome
Primary Audience: Engineering leadership, Chief Architects, and VP of Engineering managing complex 5+ year legacy codebases.
Concrete Outcome: A clear execution blueprint with working boundary isolation prototypes, reduced blast radius for production deployments, and decoupled sprint cycles.
Key Advisory Deliverables
Every engagement yields tangible, engineer-ready documentation and architectural specifications:
- Domain boundary mapping report identifying high-risk cohesion bottlenecks
- Strangler Fig pattern phased execution plan with anti-corruption layer designs
- Traffic routing and canary cutover specifications for zero-downtime migration
- Bi-weekly architectural review meetings with senior development staff
- Executive risk registry and milestone sign-off documentation
Scope Boundaries
Included in Advisory
- Deep structural analysis of existing monolithic repository dependencies
- Identification of bounded contexts and data domain coupling
- Architecture decision records (ADRs) authored for your development teams
- Coaching internal tech leads on domain-driven refactoring techniques
Explicitly Excluded
- Hands-on full-stack feature development outside boundary extraction spikes
- 24/7 production on-call operations (handled by client's internal SRE)
Advisory Execution Methodology
Our structured roadmap ensures orderly progression from initial code telemetry to validated architectural boundaries:
Phase 1: Dependency Graph Analysis
We map out circular package dependencies, database table sharing, and hidden runtime couplings across your existing monolithic source tree.
Phase 2: Domain Boundary Definition
We establish clear domain contexts using DDD principles, defining target boundaries that can be isolated with minimal cross-service queries.
Phase 3: Anti-Corruption Layer Design
We design intermediary translation interfaces to allow newly extracted services to communicate cleanly with legacy subsystems.
Phase 4: Incremental Cutover & Verification
We oversee initial extraction cycles, validate telemetry across both paths, and establish rollback safeguards.
Preparation Required From Client Team
Access to source repository metadata, schema documentation, and availability of 2-3 core engineers for domain discovery interviews.
Initiate Advisory Scoping
Submit a technical brief or schedule an initial scope evaluation with our Principal Advisor.
Submit Technical Brief