Ikhsan Arfian

Mobile Engineer

Telkomsel • Full time

Dec 2025 - Present • 8 mos

As a core developer for the MyTelkomsel Super-App, I focus on building resilient, high-scale features for millions of users. My role involves transitioning complex modules toward modern architectural standards while hardening the development pipeline through automated testing and CI/CD optimization. Key Responsibilities & Impact: * Architecture Modernization: Spearheading the migration of legacy modules to Domain-Driven Design (DDD), ensuring clear separation of concerns and improved maintainability across massive feature sets. * Mission-Critical Bug Fixing: Identified and resolved high-priority production bottlenecks and crashes impacting a large-scale user base, significantly improving app stability and App Store ratings. * Robust Test Automation: Engineered a comprehensive testing suite using XCTest and Unit Testing best practices, focusing on edge-case coverage to ensure 99.9% crash-free sessions. * CI/CD & DevOps Integration: Managed and optimized GitLab CI/CD pipelines to automate build, test, and deployment processes, reducing manual overhead and accelerating release cycles. * Scalable Feature Engineering: Developed complex, reactive UI components using SwiftUI and Combine, ensuring high performance and responsiveness across a wide range of iOS devices. * Performance Monitoring: Leveraged advanced debugging tools and monitoring platforms to proactively detect performance regressions before they reached the production environment.