> Markdown version of [/jobs/ext/4586374-mongodb-cluster-administrator-ts-sci-with-polygraph](https://www.wearedevelopers.com/jobs/ext/4586374-mongodb-cluster-administrator-ts-sci-with-polygraph). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # MongoDB Cluster Administrator (TS/SCI with Polygraph) - **Company:** Yellow Duck Technologies Inc. - **Location:** Annapolis, MD, United States - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Continuous Delivery, Continuous Integration, MongoDB, Spring-boot, Spring Data, Containerization, Kubernetes, Build Tools, Microservices - **Published:** November 5, 2026 - **Apply:** https://www.dice.com/job-detail/ff3a1a11-71bf-4f5e-874d-17101db8c274 ## About the Role * Must have an active TS/SCI clearance with polygraph. * Bachelor's degree in a technical discipline. An additional 4 years of experience may substitute for a Bachelor's degree. * 14+ years of experience. * A firm grasp of sharded MongoDB clusters. This includes monitoring house-keeping items like monitoring chunk migration and other mongo operations, helping pick shard keys, and monitoring the health of the cluster. * A deep understanding of Mongo's replication capabilities. * An understanding of tuning queries, managing indexes, and evaluating explain plans. * Experience monitoring critical functions of MongoDB. Nice to Haves: * Experience with Java and Spring Boot. * Experience with containerization and orchestration technologies (e.g., Kubernetes). * Experience with automated build tools, continuous integration, and continuous deployment. ## Description Yellow Duck Technologies is seeking cleared MongoDB Cluster Administrators to join a fast-moving team supporting mission-critical systems within a microservices-based environment., * Maintaining a large MongoDB cluster (20+ shards) for a mission critical application ecosystem. * Implementing and maintaining monitoring of cluster performance. * Working with application developers to appropriately interface with MongoDB via libraries like Spring Data. * Performing regular live upgrades of the MongoDB cluster. * Establish regular cluster backups and procedures for failover of the cluster.