JOHN RAY A. LEGASPI
Taguig City
Summary
Diligent Sr. Application Developer with strong background in developing, implementing, and maintaining complex applications. Extensive experience in leading projects from inception to completion, ensuring seamless integration and functionality. Demonstrated expertise in problem-solving and optimizing application performance through innovative solutions.
Professional developer well-versed in designing and deploying enterprise-level applications. Proven ability to streamline processes and enhance user experiences through collaborative team efforts and results-driven approach. Known for adaptability and reliability in dynamic environments, with key skills in coding, system analysis, and quality assurance.
Overview
9
9
years of professional experience
1
1
Certification
Work History
Sr. Application Developer
Personal Collection Direct Selling Inc.
Quezon City, Philippines
04.2023 - Current
- Company Overview: Triumph Building, 1610 Quezon Ave, Diliman, Quezon City, 1104 Metro Manila
- Define all aspects of system development including, but not limited to, appropriate technology and workflow, coding standards, etc.
- Ensure developed application meets all requirements of quality, security, modifiability, extensibility, etc.
- Write high quality and efficient source code based on specifications and complete development within deadlines.
- Perform unit and integration testing.
- Evaluate existing applications to reprogram, update and add new features.
- Create technical and user documentation to accurately represent application design and code.
- Work closely with other developers, business and system analysts.
- Led system integration projects, ensuring seamless collaboration between various platforms and services.
- Developed and maintained robust software solutions to enhance operational efficiency.
- Mentored junior developers, fostering skills development and knowledge sharing within the team.
Sr. Software Engineer - Product and Security
Adspark Inc.
Taguig City, Philippines
02.2022 - 04.2023
- Company Overview: 11th Floor W City Center 7th Avenue Bonifacio Global City Fort Bonifacio Taguig City
- Identify all existing product issues, formulating corrective actions and implementing solutions to prevent reoccurrence
- Support the program manager as required to ensure a successful launch of assigned programs through the development process
- Provides consultancy for Product development, Engineering & Operations team on technical security issues and remediation
- Analyzes current product offering for business impact and exposure, based on emerging security threats, vulnerabilities and risks
- Develops and administers software engineering procedures and training for vulnerability scans and static code analysis
- Participates on product security incident response teams
- Designed and implemented RESTful APIs, improving data accessibility and integration with third-party services.
- Spearheaded system architecture reviews, identifying bottlenecks and optimizing processes for increased efficiency.
- Collaborated with cross-functional teams to define project requirements, ensuring alignment with business goals.
Software Developer
Systemantech Inc.
Quezon City, Philippines
03.2018 - 02.2022
- Company Overview: 120 Cordillera St., Sta. Mesa Heights, Brgy. Lourdes, Quezon City | +63 2 5599441 | info@systemantech.com
- Assign at Tupperware Brands Philippines
- Write programs in a variety of computer languages such as Java, PHP, Javascript, HTML, CSS, AJAX and Mysql.
- Update, maintain, manage and modify existing software application (DSV2 - Direct Selling System 2).
- Using analysis and critical thinking skills to determine and assess the needs of the user and then create software to meet the requirements.
- Providing clear instructions to the project team, clearly explaining how the software works to the customer and being available to answer any questions that may arise using exceptional communication skills.
- Applying keen attention to detail and organization to work on numerous parts of a system or application at the same time while being accurate and thorough.
- Working well with others on the team of Designers, Developers and Programmers using effective interpersonal skills.
- Being able to efficiently identify and resolve issues that arise during the design, testing and maintenance processes using problem-solving skills.
IT Staff Intern
Malinta Corrugated Boxes Manufacturing Corporation
Pasig City, Philippines
10.2016 - 02.2017
- Company Overview: 1706-A Philippine Stock Exchange Center Exchange Road Ortigas Center 1600 Pasig City
- Developed Entrance Examination System using C# and SQL for the new applicants.
- Developed Quotation System using C# and SQL to automate the process of quoting the company products.
- Troubleshooting computers, networks and applications to identify malfunctions and correct them as well as other operational difficulties.
Education
Bachelor of Science - Information Technology
STI College Global City
Taguig, Metro Manila, Philippines05.2017
Skills
- NET framework expertise
- Java Spring Boot development
- Java Scala
- Kotlin development for Android
- Flutter mobile development
- Nodejs, NestJS and Expressjs
- PHP development for WordPress
- Proficient in JavaScript
- Reactjs development
- Angular framework expertise
- MySQL database management
- MongoDB database management
- Couchbase database administration
- PostgreSQL database management
- Microsoft SQL proficiency
- Jenkins, GitLab, GitHub, Docker, Kubernetes, Terraform
- Proficient in AWS and Azure
- Power BI, JasperReports, Crystal Reports
Certification
- Beyond Vibe Coding with Google Gemini: Become a Deliberate Developer (2025)
- Preparing for the Future of Work with AI Agents(2025)
- Customer Service Enablement: Providing Telephone & Email Support (July 2022)
- Adobe Premiere Pro Master Class (February 2023)
- Google Workspace Training Workshop (March 2023)
- Google Sheets Training Workshops (March 2023)
- Google Workspace Admin Training Workshop (March 2023)
Timeline
Sr. Application Developer
Personal Collection Direct Selling Inc.
04.2023 - Current
Sr. Software Engineer - Product and Security
Adspark Inc.
02.2022 - 04.2023
Software Developer
Systemantech Inc.
03.2018 - 02.2022
IT Staff Intern
Malinta Corrugated Boxes Manufacturing Corporation
10.2016 - 02.2017
Bachelor of Science - Information Technology
STI College Global City