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Ethereum network
Market & chain status
ETH / USDT · Current Price
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Pool data for the ETH/USDT pool on Uniswap
- Block Number
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- Hash
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Field notes
Latest Articles
Technical writing on software, infrastructure, and open ecosystems.
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Experience
Career Timeline
Engineering experience across enterprise systems, research infrastructure, and independent work.
2006-2010
NTT DATA SMS
Contractor
- Banking System Management
Dispatch
- Communication System Infrastructure Technical Support
2012-2014
Amadeus IT Group
Permanent
- Travel System SaaS Technical Support
- Internal IT for Local Office
2014-2016
Gaitame Finest
Permanent
- FX Related Business System
- Internal IT
2016-2017
Veritas Technology
Permanent
- Backup System Technical Support
- NetBackup with Heterogeneous Environments
2017-2023
National Institute for Materials Science
Contractor
- Full Stack Engineer
- Research Data Systems
2023-
Solid Oak
Freelance
- Full Stack Engineer
Open collaboration
Open Source Contributions
Translation, documentation, and community work that makes open technology more accessible.
Open-source project
Ethereum.org
Role
Translator
Translation overview
Review status
The chart compares approved words with the rest of the translated total.
- Approved28,000
- Other translated283,832
- Ethereum.org Translation Language Lead Role
- Japanese Translation Counts No.1
- World Translation Counts No.2
- Ethereum Translator Certificate Achieved
Role
Contributor
Public-goods ecosystem
Optimism
Role
Translator
- Optimism article translation as a contributor role
- RetroPGF (Retroactive Public Goods Funding)
Credential
Translator Certificate
On-chain participation
POAP
Badges earned through open-source contribution and community participation.
2022
2022
2022
2022
2022
2022
2022
2022
2022
2023
2022
2023
2022
2023
2023
2023
2023
2023
2023
2024
2024
Capabilities
Portfolio Skills & Education
A practical engineering toolkit spanning application development, infrastructure, operations, and delivery.
- PHP, Ruby, Java, Bash, etc.
- Able to learn other languages
- Zabbix, Prometheus, Grafana, etc.
- Implementing on various nodes in an effective way
- VMware, K8s, Docker, KVM, etc.
- Experience in heterogeneous environments
- PMP, ITIL, DevOps, Agile, etc.
- Eager to introduce these methodologies
- Linux, Windows, UNIX, etc.
- Choosing the most preferable OS
- GitHub, GitLab, Redmine, CI/CD, etc.
- Have a stance to automate processes such as CI/CD
- Installing on-premises
- DB: Elasticsearch, MySQL, PostgreSQL, Redis, etc.
- Web: Apache, NGINX, Tomcat, etc.
- Selecting the best database or middleware (NoSQL or SQL)
- F5, Switching, Routing on Cisco, K8s, VMware
- Have an understanding of TCP/IP
- Server Network is preferable
- Advanced Institute of Industrial Technology (MS in Information Tech)
- Tokyo University of Science (FS in Div II Chemistry)
- IT Cert: IPA (SM, NW, RSC, AP), CCNA, etc.
- English/Business: TOEIC 950, Eiken Grade 1, Bookkeeping Cert etc.
Contact
Build something dependable.
For engineering, technical collaboration, and open-source work.
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Get in touch
Address :
Greater Tokyo Area, Japan
Email :
hiroyukinaito@solidoak.space