About
Yoshiki Watanabe — Systems Engineer & Photographer
A profile spanning two disciplines — systems engineering and photography.
Profile
IT consultant and senior engineer with ~9 years of experience delivering systems for major Japanese corporate groups — production management, accounting, RPA, and DX. AI-driven development (Claude Code) is fully integrated into my workflow, so clients see a working build days after the first meeting, not months. Open for freelance and spot engagements. Also active as a photographer covering live music, landscapes, and wildlife.
Skills
Roles
Infrastructure & Cloud
Languages & Frameworks
Databases
Tools
Development Services
Photography Genres
Career
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Project Lead — Accounting System Insourcing
東証プライム上場ヘルスケア企業（社内SE）/ TSE Prime-listed Healthcare Company
2025-07 ~ Present
Led insourcing of a black-boxed accounting system to cut vendor costs and accelerate incident response. Analyzed and ported vendor source code; rebuilt the dev environment from scratch so internal staff can maintain and extend it autonomously.
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Project Manager — Corporate Intranet Replacement
ITコンサルティングファーム / IT Consulting Firm
2024-02 ~ 2025-06
Managed a 100-person intranet replacement program. Built a precision design-review process with an offshore vendor to eliminate requirement gaps — core features cut over with zero post-release fixes.
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Project Lead — Group-wide Accounting RPA & DX
大手住宅・建材メーカーグループ IT子会社 / Housing & Construction Group IT Subsidiary
2021-02 ~ 2024-01
Interviewed business teams, proposed RPA adoption to executives, won approval, and rolled out across group companies. Delivered ~50 hours/month of group-wide savings; reorganized the team into specialty squads to raise throughput.
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Systems Engineer — Production Management System
大手総合化学メーカーグループ エンジニアリング会社 / Major Chemicals Group Engineering Firm
2018-04 ~ 2021-01
Maintained and extended a mission-critical production management system for large manufacturing sites. Delivered a new inventory system end-to-end; refactored data-access logic to make key screens 1.2× faster.
Photography
Photography was a lifelong passion, and when a bandmate introduced me to serious camera work, I launched my photography career in earnest. I shoot stills with the Sony α1II and video with the FX30, using 12-24mm, 24-80mm, and 50-150mm lenses to cover everything from wide-angle to mid-telephoto. I also produce live YouTube streams, and as an engineer I have built a complete pipeline from RAW capture through editing to web delivery. Whatever the shoot, leave it to me.
Have a project in mind?
From system development and infrastructure to photography and video — feel free to reach out.