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Junior Platform Engineer (Kubernetes)

Junior Platform Engineer (Kubernetes)

Keep a real service healthy on Kubernetes through its busiest weeks: diagnose a failed rollout and roll back cleanly, size memory from evidence, set health checks that make deployments smooth, grant least-privilege access and handle a leaked secret, and keep the service up through node maintenance.
2 hrs taught · 4.5 to 8 hrs applied 7 modules 21 lessons 4 portfolio artifacts Completion certificate Updated September 2026
Created by the CertClue team
What you'll build

Real portfolio pieces built during the course, not a certificate for its own sake. Each one is work you can show.

  • Deploy incident noteA failed release written up: the log line that shows the cause, the rollback, the proper fix made through review, the customer impact, and the check that prevents a repeat.
  • Resource sizing recordMemory settings sized from evidence after repeated OOMKills: the observed usage and its shape, why it is load rather than a leak, the request and limit chosen and why, and how the next peak confirms them.
  • Access and secret recordAn access request answered with least privilege, and a leaked API key handled properly: rotated, removed from the repository and its history, with the platform changes asked for.
  • Maintenance readiness check and weekly reportA check that a critical service survives node maintenance, with replicas, spread, a disruption budget and the readiness checks it depends on, followed by the week's platform report.

What you'll learn

Kubernetes, kept short
The job, decoded
A day in the seat
The rhythm of the job
Into the simulation: Halyard in peak trading
Building the portfolio
What comes next

Course content · 7 modules, 21 lessons

Sign up to unlock every lesson - the titles below show exactly what is inside.

The objects a platform engineer touches every day, how rollouts work, what resources and health checks do, and how access and secrets are controlled.

The objects you touch every day
Rollouts and rollbacks
Requests and limits
Health checks: startup, readiness, liveness
Access and secrets

Requirements

  • Comfortable with the fundamentals this course's own Module 1 covers, or equivalent experience.
  • No prior experience in this field is required to start.
  • A computer with a reliable internet connection.
  • Comfortable using a web browser - no software to install.

Description

Every CertClue course follows the same seven-part shape: fundamentals, the role translated out of job-posting language, a real working day, the job's recurring rhythms, a multi-day simulation, the portfolio you build along the way, and a handoff into your next move. Here is what that looks like for junior platform engineer (kubernetes).

Who this course is for

Anyone aiming to become a junior platform engineer (kubernetes), including career changers with no background in it yet. This is the entry rung of a realistic ladder:

entry
Junior Platform Engineer

Runs services on Kubernetes day to day: deploys and rolls back, sets resources and health checks, handles access requests, and keeps services up through maintenance.

Kubernetes workloadsRollouts and rollbacksResource and health configurationAccess control basics
mid
Platform Engineer

Operates and improves the clusters themselves and the tools developers use on them, including upgrades, policy and self-service.

Cluster operationsPlatform toolingSecurity and policyDeveloper experience
senior
Senior Platform Engineer / Platform Lead

Designs the platform, sets reliability and security standards, and leads the team that runs it.

Platform architectureReliability strategyCost and capacityTeam leadership

Where it leads

This course prepares you for the CNCF Certified Kubernetes Administrator (CKA) role or credential path. Named for preparation only - no partnership or endorsement is implied.

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