SumitM_X lists essential backend skills

- Social posts from SumitM_X, e_opore and devXritesh collected overlapping backend roadmaps: system design, REST/GraphQL/gRPC APIs, SQL/NoSQL, caching, CI/CD, Docker/K8s and observability. - Posts emphasise picking one language, building product-level projects (auth, rate limiting, background jobs) and learning cloud fundamentals like AWS/GCP/Azure and Terraform. - These community roadmaps converge on production-adjacent skills employers are asking for in backend roles. (x.com/SumitM_X/status/2048345315082965030) (x.com/e_opore/status/2048045207220785167) (x.com/devXritesh/status/2048005142591783354)