Key Responsibilities
Daily Operations & Monitoring
- Monitor health, performance, and availability of Production, QA, and Development databases (PostgreSQL, MySQL, and/or Oracle) hosted on AWS on a daily basis.
- Respond to monitoring alerts, investigate root causes, and resolve common issues: space exhaustion, blocking sessions, runaway queries, and service disruptions.
- Track resource utilization (CPU, memory, I/O, storage) and report capacity trends to the Lead DBA for planning.
- Review database alert logs, audit logs, and job scheduler outputs proactively; participate in the rotating on-call DBA schedule.
Maintenance & Administration
- Execute scheduled and ad hoc maintenance: table reorganization, index rebuilding, statistics gathering, tablespace/schema management, and object defragmentation.
- Administer databases on Linux EC2 instances and AWS RDS - including startup/shutdown, patch application, and minor version updates under Lead DBA guidance.
- Manage database user accounts, roles, and privileges in accordance with security policies and RBAC standards.
- Apply patches and cumulative updates in non-production environments, documenting steps for Lead DBA review before production rollout.
- Perform database cloning and environment refreshes for QA and development on a scheduled and on-demand basis.
Backup, Recovery & Business Continuity
- Execute and validate backup jobs (RMAN for Oracle; pg_basebackup/pgBackRest for PostgreSQL; mysqldump/Percona XtraBackup for MySQL), ensuring schedules meet RPO targets.
- Perform point-in-time and full restores in non-production environments to verify backup integrity and document recovery procedures.
- Monitor AWS RDS automated backup and snapshot jobs; alert the Lead DBA to failures or anomalies.
- Assist with disaster recovery testing and failover validation under Lead DBA direction; maintain up-to-date backup and recovery runbooks.
Performance Monitoring & Query Tuning
- Identify slow-running queries and performance bottlenecks using platform-appropriate tools: EXPLAIN/EXPLAIN ANALYZE (PostgreSQL/MySQL), Oracle AWR/ADDM/ASH, wait event analysis, and execution plan review.
- Assist application developers in tuning PL/SQL, PG/SQL, and T-SQL code for improved database access efficiency.
- Monitor and manage index health; rebuild or coalesce fragmented indexes within maintenance schedules.
- Review and optimize long-running batch jobs and scheduled tasks to minimize contention during peak hours.
Automation & Scripting
- Write and maintain UNIX/Linux shell scripts to automate recurring tasks: log archiving, space checks, health reporting, and backup verification.
- Schedule and manage automated jobs using cron, pgAgent / MySQL Event Scheduler, Oracle DBMS_SCHEDULER, and/or SQL Server Agent as applicable.
- Maintain and update existing Terraform scripts for minor infrastructure changes under Lead DBA review and approval.
- Document all automation scripts with clear inline comments; maintain a centralized runbook repository.
Development Support & Collaboration
- Write, test, and debug PL/SQL, PG/SQL, and SQL scripts, stored procedures, and ad hoc queries in support of development and operations teams.
- Collaborate with application development teams to provide database support during sprint cycles, deployments, and hotfixes.
- Assist with data loads, migrations, and import/export operations using platform-native tools (pg_dump, mysqldump, Oracle Data Pump, SQL*Loader) and AWS DMS.
- Support QA teams by providing accurate test data, database snapshots, and query assistance for validation activities.
Required Qualifications
- Bachelor's degree (or equivalent) in Computer Science, Computer Engineering, or a related field, plus 4 years of hands-on database administration experience.
- Primary expertise in at least one of the following: PostgreSQL on Linux / AWS RDS, MySQL on Linux / AWS RDS, or Oracle 19c on Linux. Multi-platform experience is a strong plus.
- Solid working knowledge of backup and recovery strategies on your primary platform (pg_basebackup / pgBackRest, Percona XtraBackup, or Oracle RMAN).
- Working knowledge of database performance diagnostics: EXPLAIN/EXPLAIN ANALYZE, query plan analysis, wait event analysis, and index tuning.
- Hands-on experience writing SQL and scripting in PL/SQL and/or PG/SQL for operational and support tasks.
- Practical UNIX/Linux systems administration and shell scripting experience (bash/ksh).
- Exposure to AWS-hosted database environments: EC2-hosted databases and/or AWS RDS.
- Understanding of database security fundamentals: user privilege management, role-based access control (RBAC), and auditing.
- Strong attention to detail, disciplined change management habits, and reliable follow-through on assigned tasks.
- Good communication skills with the ability to document procedures clearly and coordinate effectively with developers, QA teams, and the Lead DBA.
Preferred Qualifications
- Cross-platform DBA experience: working knowledge of at least two of PostgreSQL, MySQL, and Oracle in a production environment.
- Familiarity with Oracle Data Guard, PostgreSQL Streaming Replication, or MySQL Group Replication for standby/HA configurations.
- Experience with AWS RDS and Aurora for PostgreSQL or MySQL workloads.
- Exposure to Terraform or other infrastructure-as-code (IaC) tooling.
- MS SQL Server administration experience in a production setting.
- Experience in an Agile/Scrum delivery environment.
- Knowledge of load testing tools and performance benchmarking methodologies.
- Familiarity with streaming or integration technologies: AWS Kinesis, Apache Kafka, or Informatica.
- Relevant professional certification: PostgreSQL Professional Certification, Oracle OCP, AWS Database Specialty, or equivalent.
USD 101,500.00 - 169,100.00 per year
Compensation:
Compensation includes a base salary in the range of $101,500.00 - $169,100.00. The base salary may vary within the anticipated base pay range based on factors such as the ultimate location of the position and the selected candidate's knowledge, skills, and abilities. Position may be eligible for additional compensation that may include an incentive program.
Benefits:
The Company offers eligible employees the flexibility to take as much vacation with pay as they deem consistent with their duties, the company's needs, and its obligations; seven paid holidays throughout the calendar year; and up to 160 hours of paid wellness annually for their own wellness or that of family members. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave.
EOE, including disability/vets
Skills Required
- Bachelor's degree or equivalent in Computer Science, Computer Engineering, or a related field
- At least 4 years of hands-on database administration experience
- Primary expertise in PostgreSQL, MySQL, or Oracle 19c on Linux or AWS RDS
- Working knowledge of backup and recovery strategies using pg_basebackup, pgBackRest, Percona XtraBackup, or Oracle RMAN
- Experience with database performance diagnostics, query plan analysis, wait event analysis, and index tuning
- Hands-on SQL and PL/SQL and/or PL/pgSQL scripting experience
- Practical UNIX/Linux systems administration and Bash or KornShell scripting experience
- Exposure to AWS-hosted database environments, including EC2-hosted databases and/or AWS RDS
- Understanding of database security fundamentals, user privileges, RBAC, and auditing
- Strong attention to detail, disciplined change management, and reliable task follow-through
- Good communication skills and ability to clearly document procedures and coordinate with developers, QA teams, and database leadership
- Production experience with at least two of PostgreSQL, MySQL, and Oracle
- Familiarity with Oracle Data Guard, PostgreSQL Streaming Replication, or MySQL Group Replication
- Experience with AWS RDS and Aurora for PostgreSQL or MySQL
- Exposure to Terraform or other infrastructure-as-code tooling
- Microsoft SQL Server administration experience in production
- Experience in an Agile or Scrum delivery environment
- Knowledge of load testing and performance benchmarking methodologies
- Familiarity with AWS Kinesis, Apache Kafka, or Informatica
- PostgreSQL Professional Certification, Oracle OCP, AWS Database Specialty, or equivalent certification
Cox Enterprises Compensation & Benefits Highlights
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Healthcare Strength — Healthcare coverage is positioned as robust with multiple medical plan options (PPOs and an HSA‑eligible HDHP), in‑network preventive care at 100%, and expanded mental health and virtual care access. Specialized offerings such as fertility benefits, gender‑affirming care, and wellness programs (e.g., Calm, FitnessOnDemand, Hinge Health) further bolster breadth.
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Retirement Support — The 401(k) program features an enhanced employer contribution for most newer hires—dollar‑for‑dollar matching up to 6% and an automatic 2% contribution after 90 days, with legacy formulas for earlier hire dates. Financial tools and student‑debt support via Candidly deepen long‑term savings support.
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Parental & Family Support — Paid parental leave of eight weeks, adoption assistance (up to $5,000 per adoption), and resources like backup care and childcare discounts are highlighted. Family‑building and caregiving supports (e.g., fertility coverage, Milk Stork, Care.com access) are emphasized across materials.
Cox Enterprises Insights
What We Do
Cox Enterprises is a family-owned enterprise spanning 125+ years of innovation. Through our diverse network of businesses, our people are shaping the future with bold thinking, cutting-edge technology and an unwavering commitment to doing what’s right. Across a range of industries — including automotive, agriculture, cleantech, journalism and more — we’re building a better future for this generation and the next. Make your mark at Cox!
Why Work With Us
Founded in 1898, Cox Enterprises is a community of kind, grounded individuals who work together to drive positive change across vital industries. At Cox, employees experience meaningful work, great benefits, work-life balance and a supportive team environment, plus ample opportunities for career growth across our family of businesses.
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