Infrastructure Engineer (Azure)

⚠️ Japanese Language Requirement: This position requires business-level Japanese (JLPT N2 or above). Some interviews in the selection process will be conducted in Japanese. Position Overview At Bluefield Energy, we build and operate a cloud platform on Microsoft Azure that integrates and manages distributed energy resources such as solar power plants. In this position, you will lead the design, build, and improvement of our cloud infrastructure centered on Azure, working closely with our development teams to provide a highly available and secure foundation. You will also be deeply involved in the operation of each project from an engineering perspective, supporting reliability management and the establishment of operational structures, and driving the development of operational foundations such as monitoring and incident management platforms. Responsibilities As a member of our shared infrastructure team, you will be responsible for the following: 1. Infrastructure Design & Build Lead the design, build, operation, and renewal of mid-to-large-scale infrastructure on Microsoft Azure Build environments, manage modules, and optimize designs using Infrastructure as Code (IaC) with Bicep Build and improve CI/CD pipelines (GitHub Actions, Azure Pipelines, etc.) Design infrastructure based on non-functional requirements (availability, performance, security, scalability) Implement network, identity, and access management in compliance with security policies (Microsoft Entra ID, Private Endpoint, Key Vault, etc.) Visualize and optimize cloud costs 2. Reliability Improvement Support SLI/SLO design for each project, and build and operate SLO monitoring mechanisms Support building operational structures for each project (escalation flows, runbooks, etc.) Plan and drive recurrence-prevention measures through postmortems 3. Operational Foundations Design and build monitoring platforms used by projects (Azure Monitor, Log Analytics, Application Insights, Azure Dashboard, etc.) Design alerts and build notification foundations (noise reduction, severity/urgency design, notification integrations) Build and operate ticket management platforms for incidents and inquiries (Azure DevOps Boards) Automate operational workflows by integrating monitoring, ticketing, and chat tools 4. Collaboration & Knowledge Sharing Support development using AI coding agents and roll out their use across the team Optimize the overall system in collaboration with development teams, product managers, and the CTO Share technical knowledge with team members and other departments (study sessions, documentation) Required Skills and Experience Experience designing, building, and operating mid-scale or larger infrastructure on Microsoft Azure Hands-on IaC experience with Bicep or Terraform Experience building and operating CI/CD pipelines Network design experience (virtual networks, NSGs, load balancers, Application Gateway, etc.) Experience designing and operating monitoring with Azure Monitor, Log Analytics, Application Insights, etc. Experience operating production environments (including failure and incident response) Experience designing systems based on non-functional requirements (availability, scalability, security) Development experience using AI coding agents such as Codex or Claude Code Strong communication skills in Japanese (business level, JLPT N2 or above) Preferred Skills and Experience Experience designing and operating SLIs/SLOs , and managing reliability with error budgets Experience building operational structures (on-call, escalation, runbooks, etc.) Experience building monitoring, incident management, or ticket management platforms (Azure DevOps, PagerDuty, Jira, ServiceNow, etc.) Comfortable communicating in English (chats and meetings with overseas team members are part of daily work) Any of the following certifications: AZ-305: Azure Solutions Architect Expert AZ-400: DevOps Engineer Expert Registered Information Security Specialist Network Specialist Experience integrating with web application development environments (ASP.NET Core, etc.) Experience building and operating container platforms ( AKS , Azure Container Apps , etc.) Experience establishing development rules and guidelines for using AI agents A habit of continuous learning and the ability to share technical knowledge with others Ideal Candidate Profile Treats solving social challenges as their own mission and takes initiative Proactively dives into unknown areas and takes on challenges freely Takes ownership of issues and acts sincerely toward solving them Collaborates respectfully with members from diverse backgrounds Technology Stack Cloud / Infrastructure Cloud: Microsoft Azure Infrastructure as Code: Bicep Networking / Identity / Security: Virtual Network, NSG, Load Balancer, Application Gateway, Private Endpoint, Microsoft Entra ID, Key Vault Containers: Docker CI/CD / Operations CI/CD: GitHub Actions, Azure Pipelines Monitoring / Observability: Azure Monitor, Log Analytics, Application Insights, Azure Dashboard Ticket / Incident Management: Azure DevOps Boards Languages / Scripting C#, PowerShell, Python, and other languages depending on the project Development and Operations Tools Project Management: Azure DevOps Boards Source Control: GitHub Enterprise Communication: Microsoft Teams Development Environment IDE: Visual Studio 2026 and Visual Studio Code Workstation: Lenovo ThinkPad (AMD Ryzen 7 or Intel Core Ultra 7+, RAM 32GB+, SSD 512GB+, 14") AI Coding Agents: Claude Code, Codex Selection Process Document Screening First Technical Assessment First Interview Second Interview Third Interview (optional) Final Interview *Some interviews in the selection process will be conducted in Japanese. *The process may vary depending on the candidate’s background and evaluation progress.