Career Timeline
1990–1999
Engaged in personal computer development at Mitsubishi Electric,
including an assignment to Apricot Computers in the UK.
2000–2008
Served as lead software engineer for mobile phones at Mitsubishi Electric,
working on the development of handsets with built-in TV receivers
such as the D900i and 903iTV.
2008–2012
Worked as a handset development Project Manager at Sony Ericsson.
Oversaw large-scale mobile device development projects and launched
global smartphones such as Vivaz U5 and Xperia S, achieving total
shipments of 8 million units.
2013–2017
Stationed at Sony Mobile’s development site in Sweden.
Acted as a bridge between European mobile operators and Japanese
development teams, supporting new model introductions and quality
improvement initiatives.
2018–2020
Served as General Manager, engaged in mobile phone business development
in Europe.
2021–2024
Worked at Sony as a QA Analyst for global markets, responsible for
market quality response and analysis.
From 2025
Founded MJ Consulting.
Providing hands-on support for hardware/software development and
quality improvement projects.