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SRE Day to day activity

A Site Reliability Engineer (SRE) has a mix of operational and development tasks to ensure system reliability, scalability, and efficiency. Here’s a breakdown of typical daily activities:

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1. Monitoring & Incident Management

  • Checking Dashboards (Grafana, Prometheus, Datadog, etc.) for system health.

  • Responding to alerts & incidents (PagerDuty, Opsgenie, etc.).

  • Investigating logs and metrics to debug system issues.

  • Conducting post-mortems and writing RCA (Root Cause Analysis).

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2. Automating & Improving Reliability

  • Writing scripts (Bash, Python, Go) for automating deployments, monitoring, and scaling.

  • Optimizing CI/CD pipelines for better deployment speed and reliability.

  • Implementing auto-scaling mechanisms (Kubernetes HPA, Karpenter, AWS ASG).

  • Ensuring backup & disaster recovery plans are in place and tested.

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3. Infrastructure & Capacity Planning

  • Managing Kubernetes clusters (EKS, GKE, AKS) and troubleshooting pods/nodes.

  • Reviewing cloud costs and optimizing resources.

  • Handling database scaling and replication (PostgreSQL, MySQL, Redis, etc.).

  • Upgrading and patching OS, containers, and dependencies.

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4. Security & Compliance

  • Applying security best practices (IAM policies, network security, vulnerability scanning).

  • Conducting audit & compliance checks (SOC2, ISO 27001, etc.).

  • Managing secrets & credentials (Vault, AWS Secrets Manager).

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5. Collaboration & Documentation

  • Working with Developers & QA to improve system performance.

  • Writing documentation for playbooks, runbooks, and best practices.

  • Participating in on-call rotations & stand-up meetings.

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6. Experimenting & Learning

  • Testing new tools and technologies (Kubernetes operators, observability stacks).

  • Improving deployment strategies (Blue-Green, Canary, Rolling updates).

  • Learning about new trends in SRE & DevOps.

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Example Daily Routine for an SRE

🔹 9:00 AM – Check alerts & dashboards, review overnight incidents. 🔹 10:00 AM – Daily stand-up with the team. 🔹 11:00 AM – Work on automation scripts or infra changes. 🔹 1:00 PM – Lunch. 🔹 2:00 PM – Debug performance issue reported by developers. 🔹 3:30 PM – Improve monitoring & alerting configurations. 🔹 5:00 PM – Document findings & updates, review pull requests. 🔹 6:00 PM – Wrap up the day!

Would you like to focus on any specific area, like automation, monitoring, or CI/CD? 🚀

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