Hi, I'm Lukas Kristianto
Lead Mobile Engineer & AI Specialist
Passionate technologist with 8+ years experience building cutting-edge mobile solutions. Currently leading cross-platform teams at APP Sinarmas while driving Mobile and AI innovation through TensorFlow and LLM integrations.
Professional Profile
Mobile Engineer • AI Enthusiast • Mentor
I specialize in building high-performance mobile applications for Android and iOS using Kotlin and Flutter, while leveraging machine learning to solve real business challenges at APP Sinarmas. My passion lies at the intersection of mobile development and data-driven solutions.
As a mentor, I simplify complex concepts in Android development, enabling teams to build applications efficiently. My technical leadership has modernized legacy codebases and established development standards across multiple enterprise systems.
Leadership Philosophy: I believe in empowering teams through trust, open communication, and continuous learning. My approach centers on fostering a collaborative environment where every member feels valued and motivated to contribute their best. By setting clear goals and providing mentorship, I help teams navigate challenges, embrace innovation, and achieve outstanding results together.
My Expertise
Leadership Experience
Lead Software Engineer
APP Sinarmas (Asia Pulp & Paper)
Team Leadership
- Lead a cross-platform mobile team of 6 engineers
- Mentor junior/mid-level engineers through code reviews
- Establish architecture standards and best practices
- Implement agile methodologies and CI/CD pipelines
- Lead project planning, manage timelines, and coordinate cross-functional collaboration
Technical Achievements
- Modernized legacy Android codebases
- Implemented Jetpack Compose across 5+ enterprise systems
- Pioneered Plate Number Recognition with TensorFlow
- Developed Internal Social Media (30k+ users)
- Researched and implemented LLM (Large Language Model) solutions for mobile AI features
Senior Software Engineer
APP Sinarmas (Asia Pulp & Paper)
Key Projects
- Sales Force Automation (IDR 10B daily transactions)
- ATOWN Internal Social Media (30,000+ APP Sinarmas Employee)
- Forestree Plantation System
- Tracking Ship/Log Systems
Innovations
- Reduced app sizes by 40-60%
- Improved performance through Compose
- Document Classification with CNN TensorFlow
- Standardized Android development practices
Professional Experience
Software Engineer Android
Tokopedia
Performance Optimizations:
- Home Page: 5s → 1s load time
- Official Store: 4s → 2.3s
- Wishlist: 2s load with DiffUtil
Key Achievements:
- Reduced APK size by 70% (98MB → 30MB)
- Implemented TDD (92% coverage)
- Developed Tokopedia Play video feature
- Automated Dark Mode for 326 modules
Full-Stack Engineer (Freelance)
Aug 2023 - PresentPT. Rapier Technology
- Developed Android apps with Clean Architecture
- Built multiplatform apps with Flutter (BLoC/GetX)
- Created backend services with Golang
Android Engineer
Oct 2022 - Jan 2023ASTRO
- Built chat app with Jetpack Compose
- Developed Warehouse Management System
- Implemented Android best practices
Flutter Engineer
July 2023 - presentMutter
- Built Flutter Mobile App for Mutter Breast Pump
- Maintained and enhanced app features based on user feedback
- Optimized performance and ensured seamless device connectivity with BLE
Android Engineer
July 2017 - March 2019RENSEKI
- Built POS System app with Java and Kotlin Native
- Developed Sales Force Application with Flutter
- Implemented Android best practices
Highlighted Projects
Technical Skills
Mobile Development
- Android (Kotlin/Java)
- Flutter
- Jetpack Components
- Material Design
- Firebase
AI/ML Development
- LLM Integration
- TensorFlow Lite
- Natural Language Processing
- Hugging Face
- Prompt Engineering
Web Development
- Next.js
- Tailwind CSS
- TypeScript
- Node.js
Other Skills
- Team Leadership
- Agile Methodology
- CI/CD Pipelines
- Microservices
- Cloud (AWS/GCP)