Mellina Yonashiro
Software Engineer at Delivery Hero
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolMellina Yonashiro is a Berlin-based software engineer with nine years of experience specializing in front-end development, UX and accessibility. She has helped shape product architecture and deliver features in modern Vue and React/TypeScript codebases while maintaining legacy AngularJS systems at companies like JustWatch and Daitan. As a former Outreachy intern and ongoing contributor to Mozilla’s Treeherder, she has a track record of improving UI accessibility and polishing complex CI tooling interfaces. Mellina pairs hands-on engineering with mentoring and teaching—she’s built curricula and led bootcamps, evaluated candidates as a technical interviewer, and served as a facilitator between designers, product owners and engineers. Her background in graphic design and game/interactive media gives her a strong visual sensibility that informs pragmatic, user-centered front-end solutions. Fluent across startup and consultancy environments, she also co-founded a digital studio serving international clients, demonstrating product-minded technical leadership.
9 years of coding experience
7 years of employment as a software developer
Undergraduate, Design and Technology, 3.63/4.0, Undergraduate, Design and Technology, 3.63/4.0 at Parsons School of Design - The New SchoolMinor, Game and Interactive Media Design, Minor, Game and Interactive Media Design at NYUGame Development, Game Development at Saga - School of Art and AnimationExtension Course - Software Engineer, Information Technology, Extension Course - Software Engineer, Information Technology at Universidade Federal de Minas GeraisBachelor's degree, Graphic Design, 9.0, Bachelor's degree, Graphic Design, 9.0 at UNESP - Universidade Estadual Paulista
English, Portuguese, German, Japanese
Stackoverflow
65reputation
2kreached
0answers
3questions
Github Skills (15)
accessibility10
uid10
javascript10
front-end-development10
ui-design10
react10
css9
multilingual6
substr6
php6
jquery6
continuous-integration4
django3
dockers3
docker3
Programming languages (8)
Github contributions (5)
mozilla/treeherder
Oct 2019 - Feb 2021
A system for managing CI data for Mozilla projects
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 review, 23 commits, 24 PRs in 1 year 4 months
Contributions summary:Mellina primarily contributed to the UI of the Treeherder project, focusing on enhancing the user interface and accessibility. Their work included fixing bugs related to graph label display and dropdown menus, improving expand/collapse components, and refining the visual design with color adjustments and icon changes. They also implemented accessibility improvements for screen reader users across multiple views, enhancing the overall usability of the platform.
reactpythondjango-rest-frameworkdjangodocker
reprograma/html-css-basico
Jul 2018 - Aug 2022
Turma 6 | 2018 | Material de aula da semana 2 - HTML e CSS básicos
Contributions:16 commits, 2 PRs, 13 pushes in 4 years 1 month
cssjavascriptsemanacss3html5
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