RAGEL
LISTIYONO
Cyber Security Researcher
Specializing in Node.js & Backend Technologies
Building secure, robust web applications with expertise in cybersecurity and VPS management

<ABOUT/>
A Cyber Security Researcher specializing in backend technologies, particularly Node.js. Experienced in building robust web applications, automation tools, complemented by a strong background in VPS management and web hosting solutions.
Possesses additional expertise in cybersecurity and vulnerability mitigation, enhancing the ability to create secure and reliable applications.
Holds a long-standing passion for exploring and implementing new technologies, constantly staying at the forefront of modern development practices.
Full-Stack Development
Specialized in Node.js, JavaScript, and Express.js for building scalable applications
Security Expertise
Strong background in cybersecurity and vulnerability mitigation practices
Infrastructure
Redis, Docker, Linux/VPS Administration, Nginx/Reverse Proxy.
<EXPERIENCE/>
Web Developer / Hosting & Domain Reseller / Bug Hunter
IT Freelance
Sidoarjo, ID
- ▹Collaborated with clients to understand their requirements and designed custom websites tailored to their needs
- ▹Implemented security best practices and conducted thorough testing to ensure the websites' reliability and performance
Web Development & Security Instructor
CV. Nuri Kencana
Sidoarjo, ID
- ▹Instructed trainees on web development principles, guiding them through the process of building websites from scratch or using CMS
- ▹Provided hands-on training on Virtual Private Server (VPS) administration, covering initial setup, OS configuration, server hardening, and routine management
- ▹Educated participants on best practices for website maintenance, performance optimization, and server monitoring
- ▹Developed and delivered a comprehensive curriculum on web security, teaching methods to identify and prevent common vulnerabilities (CSRF Attacks, Plugin bugs, SQL Injection)
Webmaster
CV. Prima Nusa Saintifika
Sidoarjo, ID
- ▹Developed a website with a private cloud storage solution, enabling secure and efficient data management
- ▹Customized private website templates to meet the specific branding and functional requirements
- ▹Performed regular maintenance and updates on the organization's website to ensure optimal performance, security, and user experience
<EDUCATION/>
Diploma in Informatics Engineering
Electronic Engineering Polytechnic Institute of Surabaya
Surabaya, Indonesia
Webinar Organizer
Informatics Engineering Webinar - PENS
Surabaya, Indonesia
Certifications
<SKILLS/>
Hard Skills
Programming
Infrastructure
Security
Soft Skills
Continuous learner with a passion for staying updated with the latest technologies and best practices in web development and cybersecurity.
<CONTACT/>
Let's connect and discuss how we can work together on your next project
ragellistiyono10@gmail.com
Phone
+62 858 4399 1612
Location
Sidoarjo, East Java, Indonesia
linkedin.com/in/ragel-listiyono
Portfolio
Ragel Listiyono
Ready to Start a Project?
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.
Get In Touch