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You will be a hands-on Database Engineer/Administrator specializing in Apache Accumulo within a distributed big data ecosystem. This role is critical to the sustainment, performance, security, and modernization of the customer's data platform. We are looking for a specialist fluent in Accumulo internals, HDFS, Zookeeper, YARN, and secure, large scale distributed data environments.

What You'Ll Do

: Accumulo Administration & Engineering Manage, configure, and optimize Accumulo clusters, including tservers, master, monitor, and garbage collector services. Perform and tune Accumulo compactions, flush operations, and table‑level maintenance routines. Engineer, configure, and validate Accumulo tables, iterators, splits, security labels, and performance settings (tablet distribution, bloom filters, tserver configurations).

Troubleshoot and resolve complex Accumulo server errors, iterator issues, classloader problems, and runtime exceptions. Distributed System Architecture Configure and optimize the supporting Hadoop ecosystem, including HDFS, Zookeeper, and YARN , ensuring tightly paired but properly decoupled management where feasible. Evaluate and tune distributed file system architecture for enterprise‑scale ingestion, analytics, and storage workloads.

Security & Cell‑Level Access Control Implement and maintain Accumulo’s cell‑level security and read‑path enforcement (Standard Read vs. Full Access modes).

Requirements

for data at rest and in motion. Backup, Recovery, and Sustainment Manage Accumulo‑level and HDFS‑level backup processes, automated backup directories, and restore procedures. Work with multi‑environment (NIPR/SIPR/JWICS) deployments following enterprise sustainment and modernization expectations.

Operational Diagnostics & Continuous Improvement Analyze Accumulo logs and metrics to troubleshoot ingest failures, iterator misconfigurations, ZK/YARN dependencies, and scaling constraints. Collaborate with engineering teams on evaluating modernization options and improving architectural resilience. g.

Compensation

for hired roles based on labor costs in the states of California, Colorado, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Virginia, Washington, and the District of Columbia, and the city of Cleveland .

Base Pay Range

for this position in these locations is shown below.