You will partner with a multidisciplinary team of systems engineers, developers, integrators, and system administrators to lead efforts in the following areas: System Reliability & Performance — Ensuring uptime, performance, and capacity planning for a large‑scale big data production platform with a microservice architecture running on Kubernetes, Elasticsearch, PostgreSQL, Kafka, and technologies such as Java, Python, React, and low‑code tools like Appian. Leidos is excited to present an opportunity for a TS/SCI‑cleared Platform Operations Manager to join a high‑impact team driving the design, development, and deployment of a modern technology stack supporting the DOMEX Data Discovery Platform (D3P) Modernization Program.