Yosuke Tanaka — Tech Lead
I turn ambiguous requirements into working systems, connecting discovery, cloud architecture, application delivery, and production operations.
About
As a Tech Lead, I join projects while requirements are still taking shape and work with stakeholders through architecture, implementation, and operations. I work across cloud infrastructure and applications, staying hands-on wherever the product needs it.
Outside work, I have designed, built, and operated a novel and reading community since 2022. Running a long-lived service has given me practical experience beyond feature delivery, including incidents, cost, analytics, and continuous improvement.
What Matters in My Work
Structure ambiguity
I work with consultants and users to clarify loosely defined needs through dialogue and prototypes, then turn them into buildable decisions.
Connect product delivery
I lead across cloud architecture, infrastructure, application development, and production rollout so decisions become working software.
Increase team velocity
I combine AI-assisted implementation and review with analytics, observability, and delivery foundations so designers and growing engineers can contribute.
Technologies I Work With Now
| Area | Technologies & themes |
|---|---|
| AI × Product | Vertex AI / Amazon Bedrock / Azure OpenAI / AI agents |
| Cloud Native | Google Cloud / AWS / Azure / Cloudflare |
| Application | Go / Python / TypeScript / Next.js |
| Platform & Delivery | Terraform / Docker / GitHub Actions / Observability |
Selected Work
AI Agent Proof of Concept
Tech Lead · Python / Azure
Leading the design and validation of an AI agent, from shaping requirements to implementation with real operational use in mind.
Business Matching SaaS Launch
Tech Lead · Google Cloud / Cloudflare / Vertex AI / Go / Next.js
Leading across requirement discovery, cloud and application architecture, product development, and the operating model for launch.
Novel & Reading Service Re-architecture
Personal Product · Go / Next.js / Google Cloud / Terraform
Redesigned a Rails service that temporarily recorded roughly 14,000 page views in one month, using four years of operating experience to migrate it with AI-assisted engineering, quality controls, analytics, and observability while keeping it live.
View professional experience →
Leadership
Go far, together
I focus on making the reasoning behind technical decisions visible so teams can act independently. While remaining hands-on, I bring designers and growing engineers into the process and close the gaps between requirements, architecture, and operations.
I use AI for implementation and research, but I do not accept its output as-is. I take responsibility for checking whether it serves the goal and for validating the code, tests, security, and production operation.
Credentials & Writing
Certifications
- Registered Product Owner — Scrum Inc. (2026)
- AWS Certified Solutions Architect – Associate
- AWS Certified Developer – Associate
- JDLA Deep Learning for GENERAL
Interviews & Articles
careers.lt-s.jp
“If you want to go far, go together” — a team-oriented engineering path
On continuous learning and supporting each team member’s growth.
clover.lt-s.jp
From discovery to delivery — AWS and application development at LTS
How we work across upstream planning, implementation, and production operations.
good-companies.jp
Sharing a richer and more enjoyable working life at LTS
An interview about work, career ownership, and growing with colleagues at LTS.
note.com
editch interview #1
Looking back on entering a portfolio competition and what changed afterward.