Job Description :
J.O#: 19958WAF

Position Title: Senior Database Administrator

Position Type: Contract

Contract Length: 6months

Location: Ashburn, VA

Hourly Rate: Open (DOE)


Senior Database Administrator Responsibilities:

Install, configure, and monitor Cassandra databases

Handle all Cassandra environment builds, including design, capacity planning, cluster setup, performance tuning and
ongoing monitoring

Configure, monitor, and troubleshoot any replication issues

Analyze query performance and provide solutions in a timely manner

Perform high-level, day-to-day operational maintenance, support, and upgrades for the Cassandra database

Research and recommend best practices for system administration tasks

Administer database backup and recovery functions

Provide on-call support to Cassandra databases and provide solutions when issue arise

Carry out performance tuning of Cassandra clusters to support high read/write throughput while minimizing latency

Analyze database access patterns to isolate hotspots, data model problems, and other bottlenecks

Plan, test, and execute standard cluster maintenance activities & Cassandra version upgrades

Perform proactive capacity planning and forecasting based on database usage patterns and new business initiatives

Establish standards and best practices for operating a high-performance, distributed NoSQL computing environment

Proactively diagnose and troubleshoot production issues

Frequent communications and collaborations with application teams

Share Cassandra knowledge with the team-members

Comply with security standards and best practices


Bachelor degree in Computer Science or related field

5+ years of hands-on experience of supporting Cassandra cluster in production environment

Good understanding of data models

A deep understanding of Cassandra design principals, cluster connectivity, security and the factors that affect
distributed system performance

In depth knowledge of architecting and creating Cassandra environment

Experience with implementation of Cassandra Database in an enterprise, Design and Support data migration

Experience with Shell scripting

Knowledge of Ansible, Python, Jenkins, Nexus and Kafka

Good verbal, written, interpersonal and presentation skills

Good documentation skills

Good understanding of Cassandra data modeling patterns and anti-patterns

Experience with Apache Spark for analytics

Experience with search integration products like Solr / Lucene

Working experience with DataStax Enterprise

Hands-on experience in setting up Cassandra cluster.

Hands-on Development experience

At least 2 years of Oracle database administration experience

Good unix scripting experience

Good oracle PL/SQL experience

Good SQL Lite (K2view) experience

Experience with Devops Tool: Git,Jenkins, JFrog