about
I'm Masahito (most people call me Masa). I'm a web developer based
in Amsterdam.
After leaving Central Saint Martins with First Class Honours, I
freelanced as an Illustrator, taking part in exhibitions and working
with clients in the UK, Japan and the United States. While
experimenting with animation, my interest shifted to interactivity
and coding, which lead me to web development.
skills
development
language
I'm fluent in English and Japanese. I started learning Dutch (Ik
spreek nederlands een beetje).
interest
I also code for pleasure, combining my pixel drawings and JavaScript
to create experimental projects, which I periodically share on
CodePen: codepen.io/ma5a
My wife's hugs and my daughter's squishy cheeks keep me going.
experience
Creative Front-end Developer at Sam Media
(March 2024 - December 2024)
-
Designed and developed landing pages for mobile subscription using
React.
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Ideated and executed A/B tests using internal tools, measuring
impact by analysing custom events.
-
Improved code quality and page performance by refactoring legacy
codes and CSS, drafting coding guidelines to promote
standardisation across the team.
Front-end Developer at Numan
(May 2021 - December 2023)
-
Maintained the sales platform, user account dashboard and product
landing pages on the company website, working mainly with Vue.js
and Nuxt (numan.com).
-
Implemented design updates based on Figma, iterating features
through A/B tests managed through Statsig.
- Built components for internal CMS library.
-
Reviewed pull requests by team members across multiple code
repositories through GitHub, and QAed prior to release using test
environments configured with Argo CD.
-
Liaised closely with the customer care team to troubleshoot and
fix bugs, and monitored site performance through Grafana and
Sentry.
-
Worked in agile sprints, switching to kanban depending on the
initiative, collaborating remotely using Google Meet, Zoom, Jira
and Slack.
Illustrator for TED
(Aug 2016 and Apr 2017)
-
Commissioned to illustrate stickers for TED Summit.
-
Created illustration for over 50 idioms from around the world (can
be viewed
here).