Site Reliability Engineer

As a Site Reliability Engineer, you will own and manage the end-to-end platform and infrastructure at Macromill. This includes cloud infrastructure, networking, CI/CD, observability, and platform tooling. You will work closely with engineering teams to build a reliable, scalable, secure, and cost-efficient platform while improving developer productivity and system performance.

Responsibilities:

• Own and manage the end-to-end platform, including infrastructure, networking, CI/CD, observability, and operations.
• Design, build, and operate scalable, reliable, and secure systems on cloud platforms.
• Develop and maintain CI/CD pipelines and automation to enable faster and safer deployments.
• Implement and manage Infrastructure as Code (IaC) using tools like Terraform.
• Improve system reliability, availability, and performance through monitoring, alerting, and optimization.
• Build and enhance observability (logging, metrics, tracing) to reduce incidents and improve debugging.
• Lead incident management, troubleshooting, and root cause analysis for production systems.
• Automate infrastructure and operational processes to reduce manual work and toil.
• Support service onboarding and migration to modern platform architecture.
• Ensure security best practices across infrastructure and applications.
• Collaborate with developers to improve developer experience and platform usability.
• Drive adoption of SRE, DevOps, and engineering best practices across teams.
• Define and maintain SLIs, SLOs, and SLAs to ensure service reliability.

Requirements:

• 4+ years of experience building and operating production systems at scale.
• Strong hands-on experience with cloud platforms (GCP, AWS, or Azure).
• Experience owning and managing end-to-end infrastructure and platform systems.
• Proficiency in Infrastructure as Code (Terraform or similar).
• Experience with containers and orchestration (Docker, Kubernetes) in production.
• Solid understanding of distributed systems and microservices architecture.
• Strong knowledge of Linux systems, networking (TCP/IP, DNS), and troubleshooting.
• Experience with CI/CD pipelines and automation.
• Experience with monitoring and observability tools (metrics, logs, tracing).
• Understanding of SLIs, SLOs, and service reliability practices.
• Experience in incident handling, debugging, and root cause analysis.
• Ability to design systems and write technical design documents.
• Programming experience in Go or a similar language, along with scripting (e. g., bash).
• Basic understanding of security best practices in cloud environments.
• Strong ownership mindset and ability to work across teams.
• Experience with large-scale or high-traffic systems.
• Hands-on experience with SRE practices such as SLO-driven operations and error budgets.
• Understanding of platform engineering and building internal developer platforms.
• Experience with cost optimization and performance tuning at scale.
• Experience with agile development practices
• Contributions to open-source projects or active participation in technical communities.
• Experience in mentoring engineers or leading technical initiatives.
• Experience in applying AI in the SRE field.
• Proven experience working with Japanese stakeholders and products.
• Strong ownership of systems with a focus on reliability and performance.
• Proactive in identifying problems and driving end-to-end improvements.
• Thinks in terms of automation, scalability, and reducing toil.
• Comfortable working in ambiguous environments.
• Communicates well and collaborates across teams.
• Continuously learns and improves engineering practice.