Role

Site Reliability Engineer

Keeps large systems fast and available by automating operations and monitoring.

13 chaptersAbout 3 months15–30 min a day16 skills2 projects
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Chapter 1 is free. No card needed.

Day 1 on the Site Reliability Engineer path.

What a Site Reliability Engineer does

Keeps online services reliable and fast by automating operations, watching system health, and fixing issues before users are impacted.

  • Design reliability goals and error budgets with product and engineering teams
  • Build automation to reduce manual work in deployments, scaling, and recovery
  • Set up monitoring, logging, and alerts to spot problems early
  • Diagnose outages using metrics and traces, then restore service quickly
  • Coordinate incident response, run post-incident reviews, and track fixes
  • Improve system performance, capacity, and cost through tuning and planning
  • Teach teams safer release practices and reliability-friendly design patterns

A day in the life

  1. Review dashboards and overnight alerts, then prioritize reliability work
  2. Work on automation or infrastructure changes, then test in staging
  3. Join incident calls when needed and communicate status to stakeholders
  4. Review upcoming releases and add checks, rollbacks, and runbooks
  5. Write post-incident notes and plan follow-up tasks with engineers

Tools you will use

Cloud platforms: AWS, Azure, Google CloudContainers: Docker, KubernetesInfrastructure as code: Terraform, AnsibleCI CD: GitHub Actions, GitLab CI, JenkinsObservability: Prometheus, Grafana, OpenTelemetryLogging: Elasticsearch, SplunkProgramming: Python, Go, Bash

Your plan

Chapter by chapter.

1~1 wk

See what site reliability engineer work involves

StartFree
2~1 wk

Observability and Incidents

Skills
31–2 wks

Make slos, error budgets, and a planned game-day exercise

Proof
4~1 wk

Meet people who do site reliability engineer work

People
5~1 wk

Infrastructure and Cloud

Skills
6~1 wk

Linux, scripts and version control

Skills
7~1 wk

Analytical and Systems Thinking

Skills
8~1 wk

Communication and Collaboration

Skills
9~1 wk

Explaining Technical Work

Skills
101–2 wks

Make self-hosted service with metrics, logs, and alerts

Proof
11~1 wk

Practise role interviews

Interview
12~1 wk

Choose a route into site reliability engineer work

Decide
13on your timeline

Apply for roles

Apply

By the last chapter

This is what you can show.

Things you've made

Slos, error budgets, and a planned game-day exercise and Self-hosted service with metrics, logs, and alerts

Skills you can prove

16 skills, each rated on work you actually did.

People you've talked to

4 people who do the job, with a message ready for each.

Questions you can answer

20 interview questions and a mock interview, with feedback.

Credentials

8 credentials compared, so you can pick one, or decide you don't need one. None is required.

Ways in

There is more than one route.

Ways to study

  • Computer science or software engineering degree or diploma
  • Information technology or networking diploma with strong Linux practice
  • Cloud and DevOps training programs with hands-on labs
  • Self-taught path using open-source projects and home lab practice

How people get their first job

  • Start in IT support or systems administration and learn automation
  • Apply for DevOps or cloud engineering internships focused on operations
  • Build a portfolio with monitoring, incident runbooks, and IaC examples
  • Earn a cloud fundamentals certification and complete practical labs
  • Contribute to open-source reliability tooling or documentation

Life skills on this path: Networking · Job interviews · Job search

How the work is changing

What AI is doing to this role

How AI is changing this role · one of 6 tasks we track

Build and run monitoring and alerting

Sped up a lot

What AI does

Datadog and Dynatrace spot odd patterns and point at the cause.

Still yours

You pick what to measure and what a good day looks like.

Reviewed September 2026

In the app · Premium

The rest is in the app

  • How AI affects the other 5 tasks
  • Whether this job is growing or shrinking
  • How hard the first job is to get
  • Similar roles that are easier to get into
  • Updated every month, with sources
See it in the app →

How we rate a job →

Already working

Already a Site Reliability Engineer?

Plan your move to Senior Site Reliability Engineer: 12 chapters that end with a strong case for your next review.

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Questions

Questions about this path

How long does it take to become a site reliability engineer with Welica?

The path is 13 chapters, 3 months at 15 to 30 minutes a day. You can go faster or slower; the plan moves with you.

Do I need a degree?

Not always. Common routes are computer science or software engineering degree or diploma, information technology or networking diploma with strong Linux practice, cloud and DevOps training programs with hands-on labs, or self-taught path using open-source projects and home lab practice.

What is free?

Chapter 1, See what site reliability engineer work involves, is free for good. Premium unlocks the rest of the path.

Start the Site Reliability Engineer path.

Chapter 1 free. About 15 to 30 minutes a day.

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