I build responsive, scalable user interfaces with React and modern web technologies. My focus is on usability, performance, and delivering polished user experiences while maintaining clean, maintainable code.
Software Engineer
Rizki
Febriansyah
Fullstack Engineer • AI Engineer • Technical Founder
Building Digital Products, Educational Ecosystems, and AI-Powered Experiences.
Founder of Radkai Studio.
Engineering products across AI, Fullstack Development, System Design, Cybersecurity Education, Productivity Tools, and Mobile Applications.
- 10 + Products Built
- 2K22 Stories by Google Learn more!
Product Builder
About Me
my Impact & Vision
I build scalable products by combining software engineering, AI, and product thinking.
I've built production software across fintech, AI media generation, automation, and productivity platforms. My experience spans frontend, backend, cloud infrastructure, and AI-assisted development from concept to deployment.
I enjoy solving complex engineering problems by combining modern software architecture, cloud technologies, and AI workflows to deliver reliable, scalable products that create real business value.
I leverage AI throughout the Software Development Life Cycle—from requirements analysis and architecture design to coding, testing, debugging, documentation, and deployment. By combining engineering expertise with AI-assisted workflows, I deliver high-quality software faster without compromising reliability or maintainability.
6+ Years
Building Production Software
AI-First
Engineering Workflow
About Me
Engineering Workflow
how do I Manage the Things
Frontend Engineering
Backend Engineering
I design secure, scalable backend services, APIs, and database architectures. I focus on reliable business logic, efficient data management, and seamless integrations with cloud services and third-party platforms.
Optimization and Testing
I prioritize performance, reliability, and maintainability. I optimize queries, application performance, and infrastructure while implementing unit, integration, and end-to-end testing to ensure production-ready software.
Documentation
I write concise, practical documentation that supports collaboration and long-term maintainability. This includes technical documentation, API references, architecture notes, and developer guides.
AI-Assisted Development
I leverage AI throughout the entire Software Development Life Cycle using Claude, ChatGPT (Codex), Gemini, and OpenCode. From requirements analysis and system design to implementation, testing, debugging, code reviews, and documentation, AI helps me deliver high-quality software faster while maintaining engineering standards.
Communication
I communicate effectively in both English and Bahasa Indonesia. Experienced working in remote, international teams, I collaborate with engineers and business stakeholders to translate ideas into technical solutions.
Skills
Featured Products
what I Build
Interactive Education
Visit Platform
ML Systems Universe
Interactive Machine Learning learning platform.
- Machine Learning
- AI Concepts
- Interactive Learning
- Practical Education
Developer Education
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Fullstack Universe
Developer-focused learning platform for modern web engineering.
- React
- Next.js
- Node.js
- APIs
- Databases
- Production Systems
Security Education
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Cybersecurity Universe
Interactive learning environment for security fundamentals.
- Linux
- Network Security
- Pentesting
- Malware Analysis
- Defensive Security
Architecture Education
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System Design Universe
Architecture-focused learning platform.
- Scalability
- Distributed Systems
- System Architecture
- Engineering Tradeoffs
Productivity
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Whiteboard
Collaborative visual thinking platform.
- Architecture Mapping
- Brainstorming
- Knowledge Extraction
- Product Planning
Deep Work
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Radio
Deep work audio environment.
- Focus
- Productivity
- Low Cognitive Load
- Continuous Learning
Mobile Application
Couple App
Production-ready mobile application designed for long-distance relationships.
Launching on Google Play.
- Mobile-first
- Meaningful digital interactions
- Production Ready
Products
Professional Highlights
my Experience
Experience
Full Stack Engineer
CFACTORY.CO
April 2025 - Present
Creating an engagement Digital Media with CFactory.
Data Annotator
Alignerr
March 2025 - April 2026
AI data annotation, RLHF workflows, and model evaluation.
AI Trainer
Labelbox
January 2025 - April 2026
AI training, prompt engineering, and LLM evaluation.
AI Coder
Outlier AI
December 2024 - April 2025
Training cutting-edge LLMs on coding tasks, software architecture, and logical reasoning.
Information Technology Staff
PT BPRS HIK Cibitung
September 2022 - November 2024
Fullstack Developer building enterprise banking systems (MIS, SIMDIGI, EFAS, EFOS). Migrated legacy MVC architecture to modern microservices. Managed cloud infrastructure from staging to production deployment.
Software Engineer
Amplication
May 2021 - December 2022
Developed with React, TypeScript, Node.js, Google Cloud, Serverless, and CI/CD across multiple platforms including React Native and REST APIs. Kanban workflow with ML EDA focus.
Information Technology Staff
Al-Halimiyah Islamic School
December 2020 - May 2021
Maintained website using WordPress CMS and PHPMyAdmin. Engaged in interactive events and presentation architecture support.
Multimedia Journalist
Institut Aikido Indonesia
August 2018 - January 2021
Sport journalist covering martial arts events under Institut Aikido Indonesia.
Experience
Founder Journey
building Radkai Studio
As the founder of Radkai Studio, I oversee the entire product lifecycle from conceptualization to production deployment.
- Product Strategy: Defining vision, roadmaps, and feature prioritization.
- Engineering: Leading fullstack development and system architecture design.
- Design Direction: Ensuring high-quality user experiences and cohesive interfaces.
- Cloud Infrastructure: Managing scalable deployments and DevOps pipelines.
- Growth: Conducting continuous experiments and iterative improvements.
Microsoft HQ
Frases Tower, #13-01
182 Cecil St, Singapore 069547
Founder
Tech Stack
my Tools
Frontend
Client-Side Engineering
- React
- Next.js
- TypeScript
- React Native
Backend
Server-Side Engineering
- Node.js
- Express
- Laravel
- FastAPI
AI
AI & LLM Integration
- OpenAI
- Gemini
- Claude
- Prompt Engineering
- OCR
- LLM Workflows
Infrastructure
Cloud & DevOps
- AWS
- Google Cloud
- Docker
- CI/CD
- Linux
Database
Data Storage
- PostgreSQL
- MySQL
- SQL Server
Stack
Recognition
my Credentials
Google Play Success Story
2022
Featured internationally on the Google Play Academy for app success strategies.
EF SET C2 Proficient
Certified C2 level proficiency in English language.
Harvard CS50x
Completed Harvard's Introduction to Computer Science.
IBM Deep Learning
Certified in Deep Learning implementations using IBM tools.
Meta Frontend & Backend Certifications
Certified in Meta's frontend and backend development programs.
Recognition
Let's Build Something Meaningful.
Reach Out
Address
Bekasi, Indonesia
Open To
Remote Fullstack Engineer • AI Engineer • Founding Engineer • Product Engineer
Contact Me