Joemari Supan

Full Stack Developer with over 5+ years of experience building scalable, high-performance web applications. Proficient in React, Next.js, and Node.js with a strong focus on clean architecture, performance optimization, and user experience. Experienced in A/B testing, CRO development, and delivering production-ready solutions for enterprise clients and freelance projects. Adept at collaborating with cross-functional teams across agile environments.

CRO Developer at Adm Indicia (2024-01 – Present)

• Implement and manage A/B tests and personalization campaigns using Adobe Target and AB Tasty.
• Evaluate technical feasibility of proposed personalization and A/B testing initiatives, advising on risks and solutions.
• Develop personalization experiences within the existing personalization suite.
• Ensure correct implementation of test objectives, development, and reporting across client campaigns.

Web Developer (Freelance) at Bonnesmains Services Corp. (2024-08 – 2026-06)

• Build and maintain websites using custom programming (no-code tools not used).
• Conduct pre-deployment testing and ongoing quality assurance at regular intervals.
• Debug and resolve website code issues; maintain integrations and database connections.
• Collaborate with designers to execute UI/UX vision and ensure responsive design.

ReactJS / JavaScript Developer at Collabera Philippines (Client: UnionBank) (2023-01 – 2023-11)

• Developed and maintained UI components and integration flows using ReactJS for a major banking client.
• Participated in requirement gathering, code reviews, bug fixing, testing, and documentation.
• Communicated complex technical issues clearly to project managers, team leads, and architects.
• Designed system specifications and standards; troubleshot and resolved production issues.

Full Stack Developer (Freelance) at Narrasoft — Client: The ROI Shop (2022-12 – 2023-06)

• Built a web application using Next.js, JavaScript, Zustand, Mantine UI, and Node.js.
• Maintained and enhanced an ROI calculator web application.
• Resolved bugs assigned by the project manager; collaborated with backend developers and QA.

Front-End Developer at Affinity Capital Corp Inc. (2020-05 – 2022-12)

• Designed, developed, and upgraded the company website using ReactJS, React Native, Node.js, HTML, CSS, and JavaScript.
• Maintained site stability and smooth functioning; conducted testing to ensure systems operated as expected.

Web Designer at Pil-Chi Telecoms Inc. (2019-10 – 2020-04)

• Developed creative concepts and new layouts to improve product browsing experience.
• Updated existing websites with HTML, CSS, JavaScript, and Bootstrap.
• Coordinated with the marketing team to gather project requirements and specifications.

Web Designer at Gfoxx International (2019-02 – 2019-09)

• Maintained and improved company website; ensured high-quality graphic standards and brand consistency.
• Provided IT troubleshooting support and coordinated with the marketing team on project needs.

Web Designer Trainee at Vasavah Consultancy (2018-11 – 2019-01)

• Created user-friendly web pages using HTML and CSS; optimized applications for speed.
• Collaborated with back-end developers and designers to improve website usability.

Bachelor of Science in Information Technology – University of Rizal System (2014 – 2018)