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Anna: DevOps, SRE and platform engineering roles all grew from the need to ship software quickly without breaking things. Ten years ago you would rarely see these titles outside of tech giants. If you told someone you were a DevOps engineer, they might have asked if you fixed printers. Companies like Netflix and Google proved that automation and tight feedback loops were essential at scale, spawning whole teams devoted to keeping services healthy.
Greg: The roles overlap, yet each leans in a different direction. DevOps engineers build the pipelines and smooth collaboration between development and operations. SREs stand guard over reliability by codifying incidents and measuring service levels. Platform engineers design the internal tools and "paved roads" that keep everyone productive. Many of these professionals contribute to open source projects like Kubernetes or Terraform, and remote-first cultures allow them to work across time zones. All three paths pay well once you've mastered the tooling, though diversity challenges remain an industry topic.

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Anna: DevOps engineers craft the pipelines that move code from commit to production. A normal day might involve wiring up GitHub Actions or Jenkins jobs, containerising apps with Docker and debugging a failed deployment at 3 AM. Their motto: "It works on my machine" is not an acceptable release strategy.
Greg: Most start as system administrators or developers who discover a knack for automation. They thrive on curiosity, clear communication and comfort with ambiguity. Certifications like AWS DevOps Professional or the Kubernetes CKAD help them progress. Junior salaries hover around $70k but can climb past $120k in senior roles, often with remote work and on-call rotations. Small startups may have one DevOps generalist, while large enterprises build teams of five or more. Over time you can grow into architect or engineering manager positions and contribute to open source tooling along the way.

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Anna: Site reliability engineers take system stability to heart. The discipline grew out of Google's need to manage massive scale, so it's all about automation and repeatable operations. An SRE might spend mornings writing Kubernetes operators and afternoons running chaos experiments or tuning Prometheus alerts. When Netflix battled early outages, their SREs pioneered chaos engineering to strengthen resilience.
Greg: Most SREs come from software or DevOps backgrounds and are comfortable coding and troubleshooting production issues. They remain calm when a 3 AM page arrives and excel at communicating what went wrong. Certifications such as Google's Professional Cloud DevOps Engineer bolster credibility. Entry salaries start near $80k, but staff and principal SREs can exceed $140k. On-call rotations and incident retrospectives are part of the culture, though many teams are remote friendly. Large companies maintain dedicated SRE squads, while smaller firms rely on a handful of specialists who obsess over metrics to keep services healthy.

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Anna: Platform engineers provide the reusable tooling that keeps teams productive. Think of them as the people building the roads and traffic lights so everyone else can drive smoothly. A platform engineer might design Kubernetes templates, manage golden AMIs or maintain an internal developer portal. Spotify's Backstage project is a great example of tooling that began inside one company and became open source for all.
Greg: Many platform engineers come from DevOps or SRE backgrounds and discover they love building shared services more than maintaining single applications. Empathy for developers, an eye for system design and a dash of product thinking all help. Salaries often start around $90k and can reach $150k for senior architects, especially if you hold cloud certifications. Larger enterprises may have teams of twenty or more, while small start-ups rely on a single expert. Over time you can grow into a platform architect or product manager role. Remember, nobody notices the road builders until there's a pothole!

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Anna: Each path offers room to grow from hands-on engineer to strategic leader. Small start-ups might only have one or two DevOps generalists, while mid-sized companies carve out dedicated SRE and platform teams. Large enterprises can support whole divisions focused on reliability or internal tooling.
Greg: Certifications in AWS, GCP or Kubernetes help you stand out, and remote-friendly cultures mean geography is less of a barrier. Expect the occasional on-call rotation, but flexible hours are common. Junior roles start around $70k–$90k and can rise above $150k as you progress to staff or principal levels. These careers reward people who enjoy problem solving, clear communication and continuous learning. Diversity and inclusion efforts are improving, yet more participation from underrepresented groups is still needed. Whether you specialise or blend all three paths, the demand for automation and reliability skills keeps climbing.