We bring Observability & SRE expertise to your team

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

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

New Relic
Datadog
Grafana
Prometheus

Cloud

Google Cloud
Microsoft Azure
AWS

IaC

Terraform
Ansible

CI/CD

GitHub Actions
GitLab
Argo
Cloud Build
Azure Pipelines

Container & Orchestration

Kubernetes
Docker
Red Hat Open Shift

OS

Linux

Company

Company Name
YST Engineering LLC
Location
3-26-20 Sobudai, Minami-ku, Sagamihara, Kanagawa 252-0324, Japan
Representative
Yoshinori Shimoikura
Founded
July 2022
Capital
¥7,000,000
Business
Engineering support for Cloud Infrastructure, Observability & SRE

Clients

Levtech Co., Ltd. PERSOL CAREER Co., Ltd. AEON NEXT Co., Ltd. PKSHA Technology Inc.

About the Founder

Yoshinori Shimoikura

Yoshinori Shimoikura

Yoshinori 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.