Wisnu Rafi
I build resilient low-level systems and dissect complex software behavior. My work sits at the intersection of systems engineering, reverse engineering, and offensive security assessments.
About
I design and build software systems that need to be fast, stable, and hard to break. In simple terms, I make critical applications run reliably under real-world pressure, from core logic to low-level behavior.
I also work as an offensive security engineer, where I simulate how attackers think, find weak points before they are exploited, and turn those findings into practical fixes for engineering teams.
Current Focus
- Building high-performance systems with reliable behavior
- Running offensive security assessments and writing clear remediation plans
- Reverse engineering software to understand risk and improve resilience
Expertise
01
Systems Programming & Performance Tuning
02
Offensive Security Testing
03
Reverse Engineering & Binary Analysis
04
Desktop Application Engineering
05
Game Security Research
06
Network Protocol Analysis
07
Low-Level Software Architecture
Experience
Current Roles
Systems Software Engineer
atBeyondsoft Singapore
Remote
Systems and desktop software engineering
Offensive Security Engineer
atConfidential Company
Project-based
Attack simulation, reverse engineering, and exploit analysis
Past Experience
Penetration Tester (Independent)
atSelf-directed Projects
Project-based
Performed web and network penetration testing, validated findings, and delivered actionable reports with remediation guidance.
Freelance Web Developer
atIndependent Clients
Freelance - Previous
Built and maintained responsive web applications while strengthening architecture, debugging, and client communication skills.
Game Security Research (Reverse Engineering)
atIndependent Research
Research - Previous
Analyzed game clients and anti-cheat behavior to understand exploitation patterns and strengthen software integrity perspectives.
Tech Stack
Contact
Interested in systems engineering, offensive security, or low-level software collaboration?
Feel free to reach out.