Susumu Tomita

I am writing to express my strong interest in contributing to your organization as a Software Architect and Cloud Engineer. With over 18 years of experience spanning QA automation, cloud infrastructure, and engineering leadership, I bring a unique perspective that bridges technical excellence with team enablement.

Throughout my career at Hitachi, DENSO, and various startups, I have consistently delivered impact:

• Cloud Architecture at Scale: Designed and operated AWS infrastructure for IoT services managing 100K-1M connected devices, achieving high availability for mission-critical automotive applications.
• Engineering Culture: Founded the Cloud Tech Friends (CCoE) community with 2,000+ engineers across DENSO Group, driving cloud adoption and knowledge sharing at enterprise scale.
• Quality Engineering: Built test automation frameworks from scratch achieving 80%+ coverage, reducing regression cycles from days to hours while maintaining quality for systems used in banking ATMs and railway IC cards. Gained international QA experience working in the United States.
• Innovation: Currently working on Web3 infrastructure using Japan's JPKI (Public Key Infrastructure) and lab automation systems for regenerative medicine research.

What sets me apart is my ability to see the full picture—from writing robust code to designing scalable systems to fostering team growth. I am passionate about creating environments where engineers can do their best work, whether through better tooling, clearer processes, or hands-on mentorship.

I am particularly drawn to organizations that value engineering excellence and continuous improvement. I would welcome the opportunity to discuss how my experience in cloud architecture, DevOps practices, and team leadership could contribute to your team's success.

Thank you for considering my application. I look forward to the possibility of speaking with you.