Software Developer

I enjoy creating solutions across both frontend and backend technologies. I'm continuously improving my skills with the goal of becoming a full-stack developer and pursuing the path of a DevOps Engineer.

Profile Picture

About Me


I focus on developing responsive and user-friendly web solutions, working with modern technologies to create clean interfaces and reliable application features.

My journey started with an Information Technology degree, where I explored both front-end and back-end development. I then expanded my skills through internships, gaining hands-on experience in system security, testing, and cloud-based environments, including remediating vulnerabilities, maintaining Azure backups, and taking primary responsibility for the development of the internal web-based quick links portal.

AdaptableTeam PlayerDetail-Oriented

Quick Facts

1 Year Experience
10+ Projects Completed
Remote & On-site
IT Degree

What Others Say About Me


I had the opportunity to supervise Izar Andrei Castillo during his internship at Finastra Philippines, where he supported our Cloud Engineering team for Pre-Sales demo systems and worked as a CyberSecurity intern. Izar consistently demonstrated strong technical proficiency and excellent teamwork while handling Power BI updates, Azure IaaS backups, Citrix Cloud tasks, reports, batch scripting, and basic MVC programming for our internal site. He also contributed to our weekly Threat and Vulnerability Management Teams presentations, providing clear and well-prepared inputs. Izar was dependable, maintained consistent attendance, delivered regular progress reports, and even helped train fellow interns. He is a motivated, reliable, and skilled young professional whom I highly recommend for future roles in cybersecurity, cloud engineering, or IT.

Mark Tagamolila
Senior ManagerFinastra

I had the privilege of working with Andrei during his internship, and he consistently exceeded expectations. He demonstrated exceptional skill in completing tasks on time, quickly absorbing new information, and executing responsibilities with minimal supervision. What truly set him apart was his initiative. He proactively identified opportunities to automate repetitive tasks, streamlining workflows and adding measurable value to the team. Andrei combines reliability with innovation, showing both discipline in meeting deadlines and creativity in improving processes. I am confident that these qualities will make him a strong contributor in any future role, and I wholeheartedly recommend him to any organization seeking a driven and capable professional.

Eduardo Dela Vega
Technical Solutions ConsultantFinastra

Izar has been a valuable addition to the team throughout his internship. While he was initially reserved, he quickly proved himself to be a reliable and dependable team member. He possesses strong technical skills and consistently demonstrates competence in the tasks assigned to him. Izar collaborates well with his fellow interns and the rest of the team, contributing positively to group efforts and team discussions. He follows instructions carefully, pays attention to details, and ensures that requirements are fully understood before proceeding with his work. Any task entrusted to him is completed on time and with a high level of quality. In addition, Izar displays a positive work attitude, is receptive to feedback, and applies learnings effectively to improve his performance. He approaches responsibilities with professionalism and can be trusted to manage his tasks with minimal supervision. Overall, Izar has shown great potential and has made meaningful contributions to the team during his internship.

Coleen Gayle Palma
Technical Solutions ConsultantFinastra

I had the pleasure of working with Izar as he started out in his Software QA career. He quickly proved he knew his stuff, showing solid technical skills and a great eye for detail. Izar is quick to spot bugs, and his work has made a real difference to our team's output. He's reliable with deadlines, handles his tasks independently, and works well with everyone on the team. Izar also does a great job connecting with business partners and developers, making sure everyone is on the same page with project needs. He's technically skilled and brings a lot of tech know-how to each project. I'm confident he'll do well in his career, and I'd happily recommend him for any software quality assurance role.

Bono James Estrella
Senior Software Quality Assurance SpecialistSandman Software Systems Inc.

Experience


Technical Solutions Consultant Intern - Cybersecurity

Finastra

Sep 2025 - Feb 2026

Supported the Threat Vulnerability Management program through detection, data analysis and presentation, stakeholder communication, vulnerability patching, backups, and system restoration.

Threat & Vulnerability ManagementAzure Cloud SolutionsWeb Development
Junior Software Quality Assurance Specialist Intern

Sandman Software Systems Inc

Aug 2024 - Oct 2024

Documented software issues in Redmine, tested system modifications, contributed to design reviews, and monitored debugging outcomes to support effective resolutions.

RedmineQuality Assurance

Skills & Technologies


HTML

HTML

0%
CSS

CSS

0%
JavaScript

JavaScript

0%
Node.js

Node.js

0%
MongoDB

MongoDB

0%
Java

Java

0%
Github

Github

0%
Bootstrap

Bootstrap

0%
MySQL

MySQL

0%
PHP

PHP

0%
Python

Python

0%
Azure DevOps

Azure DevOps

0%
Linux

Linux

0%
C#

C#

0%
Azure

Azure

0%

Featured Projects


BusMate
BusMate

Real-time bus tracking system with GPS and automated passenger monitoring, featuring web dashboards and customer apps for locations, occupancy, and arrival times.

PythonNode.jsMongoDB
TapTap
TapTap

An NFC-powered platform that redirects users to a customizable link hub where they can share content, update links anytime, and track engagement with analytics.

TailwindNext.jsPostgreSQL
Archers Reservation Hub
Archers Reservation Hub

A lab reservation system for La Sallians designed to simplify booking, checking availability, and managing laboratory schedules in real time.

JavaScriptNode.jsMongoDB
ExploreMore
ExploreMore

A travel app that helps users explore destinations across the Philippines, with geolocation, trip logging, and camera integration for capturing memories.

KotlinJava
Ordering and Inventory System
Ordering and Inventory System

An ordering and inventory system designed to help businesses track stock, process customer orders, and manage client-server operations efficiently.

PHPJavaScriptMySQL
MyFarm
MyFarm

A graphical farm simulation game that lets players run their own virtual farm, focusing on resource management and strategy in an interactive setting.

Java
Vinyl Vault
Vinyl Vault

An online vinyl record store with user shopping features and an admin dashboard for managing inventory and orders.

Node.jsMySQLJavaScript

Debug Me

Feel free to reach out for collaborations or just a chat!

Get in Touch

Email

izarandrei2@gmail.com

Phone

+63 (945) 760 0330

Location

Manila, Philippines

Available for new projects

I'm currently accepting new clients and would love to work on your next project.

Send me a message