CJ Castillo 🧑‍💻
CJ Castillo

QA Engineer

Seven Seven Global Services Inc.

CJ Castillo is a QA Engineer with a strong foundation in Manual Testing and practical experience in Automation Testing using Java and Selenium. He is committed to delivering high-quality software by identifying issues early and enhancing testing processes for greater reliability and efficiency.

Alongside his QA expertise, he is actively expanding his skill set in cybersecurity. Through hands-on learning platforms like TryHackMe and Hack The Box, he is gaining knowledge in security testing and ethical hacking to better understand application vulnerabilities and support more secure software development.

He is passionate about continuous learning and consistently seeks opportunities to grow as a well-rounded professional in both quality assurance and cybersecurity.

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Experience

  1. Software Quality Assurance Analyst

    Seven Seven Global Services Inc.

    Responsibilities include:

    • Design, develop, and execute manual test cases based on software requirements and technical specifications.
    • Perform various types of testing, including functional, regression, integration, user acceptance, and exploratory testing.
    • Identify, document, and track software defects using bug tracking tools (e.g., Jira, TestRail).
    • Collaborate with developers, product owners, and other QA team members to clarify requirements and ensure test coverage.
    • Validate fixes and conduct re-testing to verify issue resolution.
    • Document and maintain test results, reports, and QA documentation.

  2. QA Automation Testing Trainee

    Seven Seven Global Services Inc.

    Trained in different software testing types and software testing tools:

    • Project Management
    • Manual Testing
    • API Testing
    • Performance Testing
    • Automation Testing

Education

  1. BSc Information Technology

    Batangas State University, The National Engineering University - Mabini

    Business Analytics track

    Courses included:

    • Computer Programming
    • Database Management System
    • Computer Networking
    • Data Analysis
    • Systems Administration and Maintenance
    • Information Assurance and Security
    • System Quality Assurance
Skills
Technical Skills
Linux
Web Exploitation
Manual Testing
Automation Testing
Soft Skills
Collaboration & Teamwork
Attention to Detail
Learn and Adapt
Communication
Achievements
Advent of Cyber 2022
TryHackMe ∙ September 2024
A free, 24-day cybersecurity series during December featuring beginner-friendly challenges designed like an advent calendar
See certificate
Jr Penetration Tester
TryHackMe ∙ March 2024
This program develops the core technical skills needed to begin a career as a junior penetration tester. By the end, you’ll have the hands-on experience and practical knowledge to perform security assessments on web applications and enterprise infrastructure.
See certificate
Web Fundamentals
TryHackMe ∙ April 2024
Gain hands-on experience in attacking web applications through practical, real-world scenarios and interactive exercises.
See certificate
AWS Educate Introduction to Cloud 101
AWS ∙ May 2022
Introduction to Cloud 101 is an entry-level AWS Educate course that guides learners through the essentials of cloud computing. It provides hands-on virtual labs where participants can build simple cloud applications, such as storage solutions, compute instances, and databases, while gaining a fundamental understanding of AWS core services like S3, EC2, DynamoDB, RDS, VPC, and IAM
See certificate