What is the difference between SRE and DevSecOps?

AaravSingh

I would like to understand the difference between Site Reliability Engineering (SRE) and DevSecOps, as both play important roles in modern IT operations but seem to focus on different areas. While SRE is mainly concerned with system reliability, performance, and uptime, DevSecOps focuses on integrating security into the development and deployment process—so how do these roles differ in terms of responsibilities, goals, and daily work? Additionally, how do organizations use both approaches together to ensure systems are not only reliable but also secure, and what skills are needed for each role?

Sarah

Site Reliability Engineering (SRE) and DevSecOps both support modern IT systems but focus on different priorities. SRE is mainly responsible for system reliability, performance, and uptime, using practices like monitoring, automation, incident management, and service-level objectives (SLOs). DevSecOps focuses on integrating security into every stage of development and deployment through automated security testing, vulnerability management, and compliance checks. While their goals differ, they overlap in areas like CI/CD, automation, and observability. Organizations use both together to build systems that are reliable and secure, with SRE ensuring stability and DevSecOps ensuring protection, requiring skills in cloud, automation, monitoring, and security practices.