Open to opportunities

Joemar Brillo

@joemarbrillo

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Senior software engineer and ethical hacker delivering data-driven mobile and backend solutions.

Philippines

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What I'm looking for

I seek roles where I can lead development of mobile and backend systems, improve operational efficiency, and apply security expertise in collaborative, agile teams.

I am a senior software engineer and ethical hacker with over ten years building mobile and backend systems across e-commerce, logistics, and banking domains.

I design, develop and deploy native mobile applications and server-side solutions, and have led teams using agile practices to deliver production-grade software with very low bug rates.

I have broad technical experience across .NET, Java, Python, C#, Swift, Flutter, SSIS, SQL/NoSQL databases, cloud services (Google/Firebase, AWS, Azure) and penetration-testing skills from certified ethical hacking training.

I founded Emagii Tech and shipped multiple web and mobile products (contact-tracing, civic engagement, marketing broadcast apps) and supported enterprise integrations and Level 2 production support for large banking clients.

Experience

Work history, roles, and key accomplishments

Current

Founder / Freelance Developer

Current

Emagii Tech

Jan 2019 - Present (6 years 9 months)

Founded and developed multiple mobile and web products (iOS/Android) including contact-tracing and civic apps, managing full-stack development and deployments.

Flutter iOS Android GitHub REST APIs DevOps Product Development

Senior Software Engineer

YMGIT Pte Ltd

Apr 2021 - Mar 2025 (3 years 11 months)

Led development and Level 2 production support for OCBC banking integrations, implemented SSIS and database solutions, and supported Pega application integrations across SG, MY, HK and Macau.

C++Python Java SSIS MS SQL Server PostgreSQL

Senior Software Engineer

J&T Express

Jul 2017 - Jan 2019 (1 year 6 months)

Led design, development and agile delivery of native mobile applications and backend services for logistics, improving operational efficiency and end-user workflows.

iOS Android Java PHP Go SQL Server SSIS Agile)Mobile Payments Agile

Senior Software Engineer

Connecting Life Pte Ltd

Jul 2015 - Jul 2017 (2 years)

Developed native mobile apps and integrated mobile payments (MasterCard, Visa, DragonPay) for e‑commerce platforms, and worked on analytics and payment integrations.

iOS Android Mobile Payments MySQL MongoDB API Development Payments

Software Delivery Analyst

Hewlett-Packard

Aug 2011 - Jul 2015 (3 years 11 months)

Delivered .NET and Java applications for banking clients, maintained high-quality software delivery practices and IT service management across Windows and Linux environments.

.NET Java Service Management Windows Linux XCode Android Studio Software Delivery

Software Engineer

Globe Telecommunications

Mar 2001 - Jun 2011 (10 years 3 months)

Developed telephony and VOIP applications (Asterisk) and enterprise software using SOAP/REST integrations for telecommunications services.

VoIP Asterisk SOAP REST XML)JSON Telecommunications Application Development XML

Lead Software Engineer

Symbol Sciences

Feb 2009 - Mar 2011 (2 years 1 month)

Led development of Windows mobile and .NET applications for clients including retail and logistics brands, delivering cross-platform software solutions.

.NET Windows Mobile C++SOAP REST XML)JSON Application Development XML

Education

Degrees, certifications, and relevant coursework

Lyceum of the Philippines University

Ethical Hacking / Cyber Security

2022 - 2024

Completed studies in ethical hacking covering penetration testing, social engineering, cybersecurity, forensics, and network security from 2022 to 2024.