:: SYSTEM_STATUS: ONLINE ::

Rayhan
Zahwan
Saleh

DOWNLOAD_RESUME.PDF
Founder Cycology
CYBERSECURITY★ ETHICAL HACKING★ AI RESEARCH★ FULL STACK★ PENETRATION TESTING★ IOT DEV★ RED TEAMING★

Identity
Verified

STATUS: ACTIVE

LOC: SURABAYA, INDONESIA

EXP: 2019 - PRESENT

I am Rayhan Zahwan Saleh, a technology engineer merging the realms of Cyber Security and AI.

My operations span Penetration Testing, CTF warfare, Bug Bounty hunting, and Full-Stack architecture. I don't just build systems; I secure them. Currently integrating AI to create tools that simplify tasks for users and fellow developers.

// ACADEMIC_LOGS

Master of Computer Science

Telkom University

2024 - PRESENT

B.I.E. Cyber Security

Institut Teknologi Telkom Surabaya (GPA: 3.78)

2019 - 2023

Services

⚙️

API Development

Building robust, scalable REST and GraphQL APIs with proper authentication, rate limiting, and comprehensive documentation.

🗄️

Database Architecture

Designing efficient database schemas, optimizing queries, and implementing data migration strategies for maximum performance.

☁️

Cloud Infrastructure

Deploying and managing scalable cloud solutions with containerization, microservices architecture, and CI/CD pipelines.

Arsenal

01_LANGUAGES _

  • Python / Java / C#
  • JavaScript / TypeScript
  • Go / Rust / Kotlin
  • PHP / Bash / SQL

02_FRAMEWORKS _

  • Node.js / Express.js
  • Laravel / CodeIgniter
  • Django / Flask
  • Socket.io / WebRTC

03_INFRA _

  • AWS / GCP / Azure
  • Docker / Kubernetes
  • PostgreSQL / MySQL
  • Kafka / gRPC

04_SECURITY _

  • Penetration Testing
  • Vulnerability Assessment
  • Cyber Threat Intel
  • WAF / IT Policies

Mission_History

Back End Developer

Jun 2023 - Present

PT Looyal Indonesia // Surabaya

Actively involved in AI project development, leveraging machine learning algorithms and data analytics. Working on intelligent systems that automate repetitive tasks.

Fullstack Web Developer

Jan 2023 - May 2023

Surya Indah Mobil Pamekasan // Pamekasan

Developed a comprehensive System Information and Point of Sale (POS) website using Laravel, JavaScript, and Ajax.

Full Stack Developer

Mar 2022 - Sep 2022

PT PERKEBUNAN NUSANTARA XII // Surabaya

Developed web module for Android supporting annual Tebang Muat Angkut (TMA) activity.

Cyber Security Analyst

Apr 2022

PT Jasa Marga (Persero) Tbk // Surabaya

Conducted comprehensive vulnerability analysis and penetration testing on client's website.

★ CERTIFIED NETWORK SECURITY PRACTITIONER ★ FORTINET CERTIFIED ASSOCIATE ★ ETHICAL HACKER ★ FORTINET FORTIGATE 7.4 OPERATOR ★ ISO/IEC 27001 INFO SEC ASSOCIATE ★ AI SECURITY & GOVERNANCE ★ JUNIOR CYBERSECURITY ANALYST

LATEST_DOWNLOADS

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JULY 2024 COMPLETED

Advanced Python

Interactive coding course focused on Builder, Adapter, and Command patterns.

AUG 2024 COMPLETED

Cloud Native: AWS

Comprehensive course on AWS Lambda with Python, Java, and Go implementations.

MAY 2025 IN_PROGRESS

Azure Cosmos DB

Optimizing Azure Cosmos DB solutions, query performance, and indexing strategies.