THE DevOps GUIDE · FREE & OPEN
A guide to DevOps engineering careers.
Explore the work, plan interview practice and compare offers. These nine guides distinguish sourced facts from preparation advice, with links to primary references. All are free to read.
01What is a DevOps Engineer?Delivery infrastructure, production ownership and the work behind the title.3 min read02DevOps vs SRE vs Platform EngineerThree useful role lenses; the team defines the boundaries.3 min read03The DevOps Roadmap: what to learn, in what orderLearn in stages and demonstrate the result.3 min read04DevOps & SRE Salary: what the numbers actually sayCompare the same role, location and compensation components.3 min read05The skills a DevOps interview actually testsPractise the reasoning behind the tools.3 min read06The DevOps interview process, round by roundFive round types to rehearse; confirm your own schedule.3 min read07Who hires DevOps and SRE engineers, and how each type interviewsResearch the team and requisition behind the company name.3 min read08Which DevOps certifications are worth itChoose the exam for the work you need to learn.3 min read09NALSD: Google's SRE design interview, workedEstimate capacity, test feasibility and revise the design.3 min read
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Browse the question bank →Last updated 7 September 2026