BRENNAN DARVEY O. ESPINOSA
Software Developer
Zamboanga City
Summary
Entry-level Software Developer with a Bachelor of Science in Computer Science and hands-on experience in backend and full-stack development. Completed a C#/.NET backend internship and built academic and personal projects involving RESTful APIs, SQL databases, and React-based frontend. Demonstrates strong fundamentals in software development, data handling, and system documentation, with the ability to collaborate effectively in team-based environments. Seeking a junior developer role to contribute to scalable, well-structured applications while continuing to grow technical expertise.
Overview
2
2
years of professional experience
5
5
Certifications
Work History
Level 2 Analyst
Innodata Knowledge Services, Inc.
03.2026 - Current
- Analyze and annotate large datasets (text, image, or audio) to support machine learning model training
- Review and validate annotated data to maintain consistency and accuracy across datasets
- Analyze and annotate audio data to evaluate speech quality, clarity, and linguistic accuracy for AI model training
- Perform labeling and classification of images and video content to support computer vision models
- Apply structured annotation guidelines across multimodal datasets (audio, image, video) to ensure consistency and high-quality outputs
- Completed daily annotation targets within tight deadlines, contributing to continuous model training cycles
- Identified and flagged edge cases and inconsistencies, helping reduce model errors and improve training quality
- Maintained 95–99% annotation accuracy through strict adherence to QA guidelines and review processes
C# Developer (Backend Intern)
AKA Software Inc.
12.2025 - 01.2026
- Supported backend development using C# and .NET in an existing codebase
- Fixed bugs and enhanced backend functionality following coding standards
- Worked with SQL databases to retrieve, update, and validate application data
- Collaborated with senior developers during development and testing phases
- Assisted with technical documentation and basic testing activities
- Resolved ~5 backend bugs and system issues, improving application stability and reducing errors
Administrative Aide VI (Job Order)
Labuan General Hospital – Billing and Claims
09.2024 - 11.2025
- Processed and verified patient billing and insurance claims with high data accuracy
- Digitized and maintained confidential medical and financial records
- Encoded and validated PhilHealth Claim Form 4 (CF4) data
- Ensured data integrity, confidentiality, and compliance with record-handling procedures
- Supported daily administrative and records management operations
- Processed 90+ patient billing and insurance claims daily, ensuring accuracy and timely submission
Education
Bachelor of Science - Computer Science
Western Mindanao State University
Zamboanga City05-2024
Skills
Programming Languages
C#, Java, Python
Web & Software Development
HTML, CSS, JavaScript
ASPNET Core Blazor
Reactjs
ASPNET / NET
RESTful APIs
SQL
Git & GitHub
Visual Studio / VS Code
Power BI
Technical documentation
Machine Learning
Deep Learning
Certification
THE ARTIFICIAL INTELLIGENCE FOR COMMUNITIES WORKSHOP
Timeline
THE ARTIFICIAL INTELLIGENCE FOR COMMUNITIES WORKSHOP
03-2026
Level 2 Analyst
Innodata Knowledge Services, Inc.
03.2026 - Current
C# Developer (Backend Intern)
AKA Software Inc.
12.2025 - 01.2026
Career Boost with Power BI and AI
10-2025
Administrative Aide VI (Job Order)
Labuan General Hospital – Billing and Claims
09.2024 - 11.2025
Career Boost with Power BI
06-2024
Responsive Web Design
07-2022
Programming for Beginners Using Python
11-2021
Bachelor of Science - Computer Science
Western Mindanao State University