William Fletcher
Software Engineer at ExaWizards Inc.
Chiyoda, Japan
Summary
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SeniorWilliam Fletcher is a software engineer with 11 years of hands-on experience specialising in UNIX systems administration and backend development across Linux and *BSD environments. He has supported high-performance trading infrastructure and large-scale services at SBI Japannext and Rakuten, and currently develops production systems at ExaWizards in Tokyo. William blends systems programming (Ruby, Bash, Perl) with practical database-backed web tooling and automation, having built daemons for SNMP/snmptrap handling, encrypted PostgreSQL-backed apps, and deployment integrations. Proactive and independent yet comfortable in tight teams, he thrives on stabilising complex operations and turning operational workflows into maintainable software. An underrated strength is his cross-domain fluency—bridging sysadmin, devops and developer needs—to deliver reliable, auditable infrastructure.
11 years of coding experience
13 years of employment as a software developer
English, Afrikaans, Japanese
Github Skills (25)
user-friendly9
shell9
rust8
cli8
remote-administration8
mongodb-database8
cookbook7
bash7
command-line7
remote-administration-tool7
mongodb6
administration5
python5
todoist4
rundeck4
Programming languages (3)
Github contributions (5)
nakaomote/dotfiles
Oct 2014 - Aug 2022
Contributions:62 commits, 1 PR, 192 pushes in 7 years 11 months
dotfilesvimzsh
nakaomote/financial
Nov 2019 - Feb 2025
Contributions:91 pushes, 1 branch in 5 years 4 months
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