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DevOps Engineer: What They Do, Skills Needed, and How to Start

JC
JobCannon Team
|March 23, 2026|13 min read

DevOps has evolved from a methodology into one of the most critical and well-compensated roles in tech. As companies adopt cloud-native architectures, microservices, and continuous deployment, DevOps engineers have become essential to shipping software reliably at scale. This guide covers everything you need to know about the DevOps career path — what the role involves, the skills you need, and how to get started.

What Does a DevOps Engineer Actually Do?

DevOps engineers design, build, and maintain the systems that enable software teams to develop, test, and deploy code quickly and reliably. Think of DevOps as the engineering team's engineering team — they build the infrastructure and automation that lets everyone else work more efficiently.

A typical DevOps engineer's responsibilities include:

  • Building and maintaining CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI)
  • Managing cloud infrastructure (AWS, GCP, Azure)
  • Writing Infrastructure as Code with Terraform, Pulumi, or CloudFormation
  • Containerizing applications with Docker and orchestrating them with Kubernetes
  • Monitoring and alerting with Prometheus, Grafana, Datadog, or PagerDuty
  • Automating repetitive tasks and reducing manual operations (toil)
  • Improving system reliability, performance, and security
  • Incident response and postmortem analysis

DevOps Engineer Salary Breakdown (2026)

LevelUnited StatesUnited KingdomRemote
Junior DevOps (0-2 years)$80,000 – $110,000£35,000 – £50,000$65,000 – $95,000
DevOps Engineer (Mid)$115,000 – $155,000£55,000 – £80,000$100,000 – $140,000
Senior DevOps / SRE$155,000 – $210,000£75,000 – £110,000$135,000 – $185,000
Staff / Principal$200,000 – $280,000+£100,000 – £140,000+$175,000 – $250,000+

Essential DevOps Skills Checklist

  • Linux — command line proficiency, system administration, shell scripting (Bash)
  • Cloud Platforms — AWS (most common), GCP, or Azure — compute, networking, storage, IAM
  • Containers — Docker (build, run, compose), Kubernetes (pods, services, deployments, Helm)
  • CI/CD — GitHub Actions, GitLab CI, Jenkins, ArgoCD — pipeline design and optimization
  • Infrastructure as Code — Terraform (industry standard), Pulumi, CloudFormation, or Ansible
  • Monitoring and Observability — Prometheus, Grafana, ELK stack, Datadog, tracing (Jaeger)
  • Scripting — Python (automation), Bash (system tasks), Go (for advanced tooling)
  • Version Control — Git workflows, branching strategies, code review practices
  • Networking — TCP/IP, DNS, load balancing, reverse proxies (Nginx), CDNs
  • Security — secrets management (Vault), RBAC, network policies, supply chain security

Explore all DevOps and infrastructure skills at JobCannon's Skills Database.

DevOps Career Path

  1. Junior DevOps / Systems Administrator — learn Linux, basic cloud, simple CI/CD pipelines. Focus on automation and scripting. 1-2 years.
  2. DevOps Engineer — design complex pipelines, manage Kubernetes clusters, write IaC, implement monitoring. 2-4 years.
  3. Senior DevOps / SRE — architect infrastructure, define SLOs/SLIs, lead incident management, mentor juniors. 3-5 years.
  4. Staff / Principal — set organizational platform strategy, evaluate tooling, drive cultural change. 5+ years.
  5. VP of Platform Engineering / CTO track — executive leadership over engineering infrastructure.

Certification Roadmap

Entry Level

  • AWS Cloud Practitioner — foundational cloud understanding
  • Linux Foundation Certified System Administrator (LFCS)
  • Docker Certified Associate (DCA)

Mid Level

  • AWS Solutions Architect Associate — the most valuable cloud certification
  • Certified Kubernetes Administrator (CKA) — highly respected in the industry
  • HashiCorp Terraform Associate — validates IaC skills

Senior Level

  • AWS Solutions Architect Professional
  • Certified Kubernetes Security Specialist (CKS)
  • Google Cloud Professional DevOps Engineer

Learning Roadmap for Beginners

  1. Months 1-3: Linux fundamentals, Bash scripting, Git, basic networking concepts
  2. Months 3-5: Cloud fundamentals (AWS free tier), Python scripting, basic CI/CD with GitHub Actions
  3. Months 5-8: Docker, Kubernetes basics, Terraform, monitoring with Prometheus/Grafana
  4. Months 8-10: Build a complete project — deploy a multi-service app with full CI/CD, IaC, and monitoring
  5. Months 10-12: Earn AWS SAA or CKA certification, build portfolio, start applying

Get a structured DevOps learning plan at JobCannon's Learning Path.

DevOps vs SRE vs Platform Engineering

These roles overlap significantly but have different emphases:

  • DevOps Engineer — focuses on CI/CD, automation, and bridging dev and ops teams
  • Site Reliability Engineer (SRE) — applies software engineering to operations, focuses on reliability (SLOs, error budgets, on-call)
  • Platform Engineer — builds internal developer platforms and self-service tooling for development teams

Is DevOps Right for Your Personality?

DevOps engineers tend to be systematic problem-solvers who enjoy automation and efficiency. In Big Five terms, they typically score high on Conscientiousness (methodical, detail-oriented) and moderate on Openness (curious enough to explore new tools, pragmatic enough to choose the right one). RIASEC profiles often feature Investigative (analytical) and Realistic (hands-on, technical) themes.

Find Your DevOps Fit

  • Career Match Test — check if DevOps or infrastructure roles appear in your results
  • RIASEC Assessment — high Investigative and Realistic scores align well with DevOps
  • Big Five Test — high Conscientiousness predicts DevOps career success

Start your DevOps journey with JobCannon's free Learning Path.

Ready to discover your ideal career match?

Take the free test

References

  1. Gene Kim, Kevin Behr, George Spafford (2013). The Phoenix Project
  2. Nicole Forsgren, Jez Humble, Gene Kim (2018). Accelerate: The Science of Lean Software and DevOps
  3. U.S. Bureau of Labor Statistics (2025). Occupational Outlook Handbook: Software Developers

Take the Next Step

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