Mobile & Web Engineer
Android · React · iOS

Tangerang · Indonesia
Open to work

SyifaNurzain

// Android · Kotlin

Five years shipping production apps across banking, insurance & consumer products — currently building for millions at one of Indonesia's largest banks.

06.17°S / 106.63°E
Available — 2026
01Prologue

I turn complex business logic into reliable, fast products people reach for every day — across mobile and web.

My work lives where reliability isn't optional — regulated banking, insurance, and consumer products. Today I own end-to-end feature delivery at PT Bank Central Asia, one of Indonesia's largest banks, shipping across Android, iOS, and web for millions of customers.

I care about the parts users never see: clean architecture, fast load times, and code the next engineer can actually maintain. Ten-plus major features shipped with zero critical incidents — that's the standard I hold.

05+
Years shipping
04
Industries
99%
Uptime SLA held
02Selected Work

Things I've built.

myBCA Bisnis Lite
012026

myBCA Bisnis Lite

BankingMobile Developer

A mobile companion app for myBCA Bisnis, BCA's corporate cash management platform. The app replaces the traditional hardware token with a fully digital solution, enabling KeyBCA Appli code generation and PIN-based transaction authorization natively on mobile, without requiring web portal access.

KotlinJetpack ComposeSwiftUI
View project
myBCA Bisnis
022024

myBCA Bisnis

BankingFrontend Developer

A web-based corporate internet banking platform by BCA, engineered to handle the full spectrum of business cash management needs within a single system. The platform supports real-time transaction monitoring, bulk payments, cross-border transfers, invoice management, and Host-to-Host integration, allowing businesses to connect their internal systems directly to the platform.

AngularTypeScript
View project
Mythic Protocol
032023

Mythic Protocol

GamingFrontend Developer

A cross-product web ecosystem for Confiction Labs, unifying gaming, digital collectibles, and community engagement into a single platform. Built to handle user progression, clearance-based access control, quest systems, and cross-platform reward distribution across interconnected products like RIFTSTORM and the Portal.

ReactTypeScriptSpine.js
View project
Fantasy Team
042023

Fantasy Team

GamificationFrontend Developer

Fantasy sports platform transforming soccer fandom into interactive gaming — build dream teams, implement strategic formations, and compete globally based on real-world player performances.

ReactJavaScript
View project
Activity Management System
052022

Activity Management System

InsuranceAndroid Lead

An Android application built for insurance professionals to manage sales pipelines and recruiting activities in one place. The app handles contact syncing, activity scheduling, and reminder management while providing data-driven insights across each stage of the sales funnel, giving both individual agents and team leads a clear view of performance, open pipelines, and areas for improvement.

JavaKotlinFirebaseRealm
View project
Loyola PPDB
062021

Loyola PPDB

EdTechFrontend Developer

Modern student registration platform for Kolese Loyola High School — streamlined admission processes, automated application workflows, document management, and real-time status tracking.

ReactJavaScript
View project
03Technical Stack
01Mobile
KotlinJetpack ComposeAndroid SDKSwiftUIReact NativeJava
02Web
ReactTypeScriptAngularNext.jsJavaScript
03Architecture
MVVMClean ArchitectureREST APIsPerformance Optimization
04Practice
GitCI/CDGoogle PlayApp StoreAgileScrum
04The Path
May 2023 — Present

IT Specialist · Mobile & Web Engineer

PT Bank Central Asia (BCA)Tangerang, ID
  • Own end-to-end feature delivery for enterprise banking apps serving millions of customers across Android and web.
  • Shipped 10+ major features with zero critical post-release incidents, holding a 99% uptime SLA in a highly regulated environment.
  • Cut code-review cycle time ~30% with structured review checklists and refactoring legacy modules into testable components.
  • Led technical improvement initiatives including architecture refactoring and performance tuning, resulting in measurable gains in app responsiveness.
  • Collaborate with product managers, designers, and backend engineers in cross-functional Agile squads with minimal supervision.
Apr 2022 — Apr 2023

Web Frontend Engineer

PT Agate InternationalBandung, ID
  • Built & maintained 5+ React web apps for interactive gamification products, translating designs into pixel-perfect responsive UI.
  • Reduced average page load time ~40% via code-splitting, lazy loading, and asset optimization.
  • Integrated frontend applications with backend REST APIs and contributed to a shared component library, cutting new-feature implementation time.
  • Improved performance and user experience through systematic profiling and optimization techniques.
Aug 2020 — Jun 2022

Android Developer

PT Tokio Marine Life InsuranceJakarta, ID
  • Led Android development for an agent app used by 200+ agents nationwide to manage policies and clients.
  • Implemented 15+ features in Kotlin & Java, consistently hitting sprint targets.
  • Managed the full Google Play release lifecycle — versioning, staged rollouts, production monitoring.
  • Translated complex insurance business workflows into intuitive mobile UX solutions in close collaboration with stakeholders.
2018 — 2020

Android & Web Developer

Freelance · Multiple CompaniesIndonesia
  • Delivered apps end-to-end for clients across manufacturing, agriculture, and tech.
  • Built a full-cycle foundation: requirements, architecture, development, testing, deployment.
  • Managed freelance client relationships, sharpening self-directed project management and communication skills.
2016 — 2020

B.Eng. Informatics Engineering

Sekolah Tinggi Teknologi Bandung (STTB)GPA 3.78 / 4.00
05At a Glance

Currently a Mobile & Web Engineer at PT Bank Central Asia — open to senior mobile & frontend roles and select freelance.

StatusOpen to roles & freelanceSenior mobile / frontend · full-time or contract
BasedTangerang, IndonesiaGMT+7 · open to remote & relocation
LanguagesIndonesian · EnglishNative · Professional working
EducationB.Eng. InformaticsSTTB Bandung · GPA 3.78 / 4.00
FocusPerformance & systemsMobile perf engineering · UI/UX design systems
Open sourcegithub.com/aviharezContributions & side projects
06 — Let's collaborate

Let's build
something.

elzainsyifa@gmail.com