Sailendra Salsabil

Senior IT Consultant & Software Developer

Building robust digital ecosystems from server infrastructure to user interfaces. Focused on scalable architectures, clean code, and seamless integrations to deliver high-value technology solutions.

sailendra.salsabil@gmail.com

Core Services

Comprehensive solutions across the entire development stack

Mobile & Web Development

Native iOS/Android, Flutter, and Laravel frameworks. Building scalable applications with performance and user experience at the forefront.

UI/UX & High-Precision Design

Pixel-perfect slicing and implementation. Creating intuitive interfaces that bridge design and development seamlessly.

Third-Party API Integration

Payment gateways, notification systems, and external service integration. Ensuring robust and secure data flow across platforms.

Server & VPS Configuration

DigitalOcean, AWS deployment, CI/CD pipelines, and infrastructure automation. Enterprise-grade reliability and scalability.

Technical Case Studies

8+ years of enterprise-grade solutions delivering scalable architectures, clean code, and high-impact integrations for industry-leading companies

Enterprise Mobile Architecture & Performance Optimization

Recommend Group (Sejasa) & Mamikos

2018 - 2023

Developed large-scale mobile applications for the service marketplace and property rental industries, serving millions of active users with high-traffic search and booking flows.

Technical Challenges

  • Handling high user traffic and concurrent requests
  • Optimizing slow search and booking transaction flows
  • Resolving critical performance bottlenecks and app crashes

Solutions & Architecture

  • Implemented MVVM and Clean Architecture patterns for maintainable, testable code across native iOS/Android platforms
  • Utilized XCTest and UI Testing frameworks to ensure stability and prevent regressions
  • Monitored app health using Firebase Crashlytics and Google Analytics for real-time insights

Business Impact

Achieved significant reduction in crash rates (45% improvement) and optimized load times for core transaction flows, ensuring seamless user experience and improved retention.

Full-Stack System Integration & Infrastructure Automation

Recommend Group (Sejasa)

2018 - Present

Engineered end-to-end digital ecosystems involving automated document processing, multi-stage status tracking, and integrated payment systems for enterprise operations.

Technical Challenges

  • Building secure, scalable backend systems for file automation
  • Creating comprehensive admin dashboards for monitoring and control
  • Establishing production-ready server environments with zero-downtime deployments

Solutions & Architecture

  • Built robust backends with Laravel and dynamic admin panels using Filament PHP for intuitive management
  • Configured Linux (Ubuntu) environments with Nginx, Git-based staging, and SSL/HTTPS security protocols
  • Integrated third-party payment gateways (Xendit & Midtrans) for secure transaction processing

Business Impact

Delivered a fully automated, transparent, and secure cross-platform infrastructure that scales seamlessly with business growth, improving operational efficiency and reducing manual overhead.

Real-Time Data & Secured Media Delivery

IDN Media & MNC Group

2020 - 2023

Developed high-traffic news portals and media streaming platforms delivering real-time updates and DRM-secured content to millions of concurrent users.

Technical Challenges

  • Delivering real-time updates without compromising device performance
  • Implementing secure media streaming with DRM protection
  • Managing heavy background processing across multiple platforms

Solutions & Architecture

  • Integrated Socket.IO and Firebase Cloud Messaging (FCM) for instant real-time notifications and data synchronization
  • Managed heavy background processing using Swift Grand Central Dispatch (GCD) and Kotlin Coroutines for optimal resource utilization
  • Implemented DRM-secured video playback with adaptive bitrate streaming for optimal quality

Business Impact

Enhanced media loading speeds and delivered a secure, high-performance streaming experience to millions of users, ensuring 99.9% uptime and zero-downtime deployments.

8+

Years of Experience

4+

Major Companies

10M+

Users Impacted