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Back_to_Works
Simpan
Simpan is a guided investing app for everyday Indonesian investors. My team took over the project from a previous vendor, inheriting a legacy Flutter codebase with accumulated tech debt, inconsistent patterns, and minimal test coverage. We audited, stabilised, and refactored the codebase — establishing proper BLoC architecture, introducing a test suite, and resolving critical bugs — before resuming feature delivery and shipping the app to production.
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── /Confidential
NDA // Details restricted
This project was built under a professional engagement. Product details, technical architecture, and business logic are covered by NDA and cannot be disclosed. What follows is a summary of my personal contribution and measurable impact.
My_Contributions:
- Inherited a legacy Flutter codebase from a previous vendor — conducted a full audit, identified critical issues, and established a recovery plan before resuming active development.
- Refactored state management to follow BLoC best practices, replacing inconsistent patterns left by the previous team and making the codebase predictable and maintainable.
- Introduced unit and widget testing across core investment flows, building a test suite from near-zero coverage to support safe iteration.
- Resolved long-standing bugs across onboarding, portfolio selection, and transaction screens — stabilising the app to a product-ready state.
- Defined and enforced coding standards and architecture conventions across the team to prevent regression and align new contributors quickly.
- Collaborated closely with product and backend to scope, estimate, and deliver features on a structured release cadence after the handover.
- App shipped to production with 1K+ downloads, a 4.8 rating on the App Store and 4.3 on Google Play — reflecting the quality uplift from the stabilisation effort.
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