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I’m a front-end developer who’s built and led production React applications for teams across multiple domains, with a strong focus on performance, accessibility, and code quality. At Mosaic Manufacturing, I owned release end-to-end, reduced render times by 40%, cut code duplication by 30–40%, and helped drop production bugs by 20% through better testing coverage and tighter engineering collaboration. I bring a senior-style approach to architecture, component-driven UI, and cross-functional delivery—partnering closely with backend, design, QA, and product to prevent design/system inconsistencies before implementation and to keep the UI visually consistent. I’ve also worked on full-stack and API integration in React/Redux environments, optimized data fetching and rendering patterns, and used tooling like Chrome DevTools and React Profiler to diagnose and resolve performance issues.…I’m a front-end developer who’s built and led production React applications for teams across multiple domains, with a strong focus on performance, accessibility, and code quality. At Mosaic Manufacturing, I owned release end-to-end, reduced render times by 40%, cut code duplication by 30–40%, and helped drop production bugs by 20% through better testing coverage and tighter engineering collaboration. I bring a senior-style approach to architecture, component-driven UI, and cross-functional delivery—partnering closely with backend, design, QA, and product to prevent design/system inconsistencies before implementation and to keep the UI visually consistent. I’ve also worked on full-stack and API integration in React/Redux environments, optimized data fetching and rendering patterns, and used tooling like Chrome DevTools and React Profiler to diagnose and resolve performance issues.

Jinelle Bat erna

Front-End Developer, Web Developer, Software Engineer, +2

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I’m a front-end developer who’s built and led production React applications for teams across multiple domains, with a strong focus on performance, accessibility, and code quality. At Mosaic Manufacturing, I owned release end-to-end, reduced render times by 40%, cut code duplication by 30–40%, and helped drop production bugs by 20% through better testing coverage and tighter engineering collaboration. I bring a senior-style approach to architecture, component-driven UI, and cross-functional delivery—partnering closely with backend, design, QA, and product to prevent design/system inconsistencies before implementation and to keep the UI visually consistent. I’ve also worked on full-stack and API integration in React/Redux environments, optimized data fetching and rendering patterns, and used tooling like Chrome DevTools and React Profiler to diagnose and resolve performance issues.…I’m a front-end developer who’s built and led production React applications for teams across multiple domains, with a strong focus on performance, accessibility, and code quality. At Mosaic Manufacturing, I owned release end-to-end, reduced render times by 40%, cut code duplication by 30–40%, and helped drop production bugs by 20% through better testing coverage and tighter engineering collaboration. I bring a senior-style approach to architecture, component-driven UI, and cross-functional delivery—partnering closely with backend, design, QA, and product to prevent design/system inconsistencies before implementation and to keep the UI visually consistent. I’ve also worked on full-stack and API integration in React/Redux environments, optimized data fetching and rendering patterns, and used tooling like Chrome DevTools and React Profiler to diagnose and resolve performance issues.

Available to hire

I’m a front-end developer who’s built and led production React applications for teams across multiple domains, with a strong focus on performance, accessibility, and code quality. At Mosaic Manufacturing, I owned release end-to-end, reduced render times by 40%, cut code duplication by 30–40%, and helped drop production bugs by 20% through better testing coverage and tighter engineering collaboration.

I bring a senior-style approach to architecture, component-driven UI, and cross-functional delivery—partnering closely with backend, design, QA, and product to prevent design/system inconsistencies before implementation and to keep the UI visually consistent. I’ve also worked on full-stack and API integration in React/Redux environments, optimized data fetching and rendering patterns, and used tooling like Chrome DevTools and React Profiler to diagnose and resolve performance issues.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Front-End Developer at Mosaic Manufacturing Ltd

May 1, 2021 - Present

Owned senior-level responsibilities beyond title, including front-end architecture ownership, technical decision-making, and running the release process end-to-end. Reduced render times by 40%, lowered code duplication by 30–40%, and decreased production bugs by 20% by improving component refactoring/testing and de-risking releases. Wrote and enhanced feature-flag merge strategies, handled PR review with AI tooling while maintaining code quality, accessibility (WCAG), and performance standards, and negotiated timing to protect release stability. Worked closely with backend, design, QA, and product; partnered with product design to catch design-system and code inconsistencies before implementation, improving design-to-dev handoff speed by 25% and keeping UI consistent. Managed end-to-end release workflows including branch cuts, QA validation, and hotfix coordination. Diagnosed and resolved hardware-constrained embedded device browser performance issues using Chrome DevTools and React

Front-End Engineer at Markdwn, Inc.

January 1, 2018 - March 1, 2020

Built a single-page React application for Philippines-based deals and a deal/discounters aggregator site. Translated Sketch and Zeplin designs into production UI, including deal discovery filters and a CMS for admins. Implemented server-side rendering solutions so search engines indexed pages correctly, and integrated REST APIs with Axios to pull live data. Collaborated with backend engineers on caching and performance improvements, using analytics data to grow engagement from social and organic search, including tracking daily sessions over 1,000.

Project Manager at Seer Technologies Inc.

February 1, 2013 - December 1, 2017

Managed 5–10 concurrent technical projects for major Philippine banks, telecoms, media outlets, and insurance companies. Led engineering teams (5–10 across engineering, product, and vendors) to deliver on time and within budget using Agile, balancing what clients wanted against scope creep protection. Built strong client relationships that led to repeat business and improved delivery consistency across stakeholders.