System reliability through observability and operational excellence
From monitoring infrastructure to operational excellence — a lean, bilingual team embedded in your workflow
About Us
YST Engineering is a specialized engineering firm focused on Observability, SRE, and cloud infrastructure. Our team brings experience from large-scale telecom and government infrastructure projects, as well as SRE support for retail web services and SaaS platforms. We embed as a lean, bilingual team within your development organization to improve system observability and reliability.
Bilingual
Seamless integration into global engineering teams
Deep Expertise
Specialized in infrastructure and observability
Small & Fast
Lean team, fast decisions, minimal overhead
Mission
Take It On. Answer for It.
引き受ける。そして、答える。
The heavier the work, the more it needs someone to take it on. We take it on — and we deliver an answer for everything we accept, answering for the trust placed in us. Each answer we deliver makes someone's day a little better. That is what we call our own happiness.
Vision
From a company that supports, to a company that carries the work
We won't just support our customers' work from the outside — we will run businesses of our own. The first things we take on: energy and data, the foundation of all work.
Values
Judgment stays with people
AI can take over tasks. Judgment and responsibility can't be handed over — the moment they are, the work belongs to no one.
The second client, with half the effort
Rebuilding from scratch for every client is defeat. Turn the work into a pattern, and the same effort reaches further.
Speak the language of the business
Not "error rate up 0.3%" — "that task stopped 214 times." An explanation that doesn't reach people isn't an explanation.
Raise your hand first for the messy work
Imperfect action beats spotless inaction. The work nobody wants to do is where the value hides.
Sit in the customer's chair
Think from where the customer sits — and take the lead when they hesitate.
Have fun. Go all in.
Services
Observability Platform Implementation
End-to-end support for monitoring platforms like New Relic and Datadog — from tool selection and implementation to dashboard design, alerting strategies, and operational adoption.
SRE Practice Enablement
Introduce SRE principles and practices into your team — SLI/SLO definition, error budget management, incident response processes, and reliability culture.
Cloud Infrastructure Engineering
Design, build, and operate cloud infrastructure on GCP and Azure. Infrastructure as Code with Terraform, CI/CD pipeline implementation, and ongoing operational support.
Technology
Observability
Cloud
IaC
CI/CD
Container & Orchestration
OS
Company
- Company Name
- YST Engineering LLC
- Location
- 3-26-20 Sobudai, Minami-ku, Sagamihara, Kanagawa 252-0324, Japan
- Representative
- Yoshiki Shimoikura
- Founded
- July 2022
- Capital
- ¥7,000,000
- Business
- Engineering support for Cloud Infrastructure, Observability & SRE
Clients
About the Founder
Yoshiki Shimoikura
Yoshiki Shimoikura
Studied at Kyushu Institute of Technology (Information Engineering), with study abroad experience in India and startup internships. Joined NEC Solution Innovators as a new graduate, where he spent 4 years as an infrastructure engineer — building OSS-based systems for a major Middle Eastern telecom carrier, developing a managed IaaS platform, and constructing large-scale government infrastructure. After freelancing, founded YST Engineering LLC.
Contact
Have questions about Observability, SRE, or cloud infrastructure? We'd love to hear from you.