Migrasi core banking ke arsitektur cloud-ready untuk bank menengah IndonesiaCore banking migration to cloud-ready architecture for an Indonesian mid-tier bank
KonteksContext
Bank menengah dengan 280 cabang nasional memiliki core banking warisan dengan kustomisasi tinggi yang menjadi penghambat inovasi produk. Setiap perubahan butuh 6–9 bulan; biaya operasional meningkat 18% per tahun; auditor mempertanyakan kontrol perubahan.A mid-tier bank with 280 national branches had a legacy core banking with heavy customization that bottlenecked product innovation. Each change took 6–9 months; operating costs grew 18% per year; auditors questioned change controls.
Tantangan UtamaPrimary Challenges
- Core banking warisan dengan ribuan kustomisasiLegacy core banking with thousands of customizations
- Tekanan inovasi produk dari kompetitor digitalProduct innovation pressure from digital competitors
- Kepatuhan OJK dengan standar yang terus berubahOJK compliance with continually-evolving standards
- Risiko downtime tinggi untuk operasi 280 cabangHigh downtime risk for 280-branch operations
PendekatanApproach
Arsitektur Target (Bulan 1–4)Target Architecture (Months 1–4)
Penyusunan arsitektur target berbasis layanan dengan tim arsitek senior. Validasi melalui workshop dengan IT internal & audit internal.Service-based target architecture design with senior architects. Validation through workshops with internal IT & internal audit.
Strangler Migration (Bulan 5–18)Strangler Migration (Months 5–18)
Migrasi data bertahap dengan strangler pattern. API gateway untuk integrasi sistem lama dan baru. Zero customer-facing downtime selama migrasi.Phased data migration via strangler pattern. API gateway for old/new system integration. Zero customer-facing downtime during migration.
DevSecOps & Kontrol Perubahan (Bulan 10–24)DevSecOps & Change Control (Months 10–24)
Implementasi CI/CD dengan SAST/DAST terintegrasi. Kontrol perubahan baru yang lulus standar audit OJK. Pelatihan 24 engineer internal.CI/CD implementation with integrated SAST/DAST. New change control passing OJK audit standards. Training for 24 internal engineers.
Stabilisasi & Transfer (Bulan 22–24)Stabilization & Transfer (Months 22–24)
Stabilisasi pascamigrasi, dokumentasi run-book, dan masa pendampingan 6 bulan dengan SLA bertingkat.Post-migration stabilization, run-book documentation, and 6-month mentoring period with tiered SLA.
Hasil TerukurMeasurable Outcomes
Diskusi pendekatan serupa untuk organisasi AndaDiscuss similar approach for your organization
Detail engagement dapat dibagikan lebih lanjut setelah kesepakatan kerahasiaan.Engagement details can be shared further after a confidentiality agreement.