Database Reliability Engineer

Horizon3.ai

full-time

Posted on: 8/30/2025

Location: 🇺🇸 United States

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Mid-LevelSenior

AWSCloudCyber SecurityDynamoDBEC2KafkaKubernetesNoSQLPostgresRedisTerraformVault

About the role

Architect, deploy, and maintain highly available, secure, and performant database systems across multiple AWS regions. (PostgreSQL and NoSQL)
Implement automation for database provisioning, scaling, backups, failover, and patch management using Infrastructure as Code (Terraform, Crossplane).
Establish database observability: design and maintain telemetry for query performance, replication lag, disk I/O, and capacity forecasting.
Partner with development teams to review schema changes, query plans, and application database interactions for efficiency and scalability.
Drive incident response for database-related outages, including root cause analysis, remediation, and prevention.
Maintain compliance with industry standards and security frameworks (encryption, access controls, audit logging).
Collaborate on disaster recovery planning and ensure tested, reliable backup and restore processes.
Maintain detailed and accurate technical documentation and operational runbooks.
Evaluate emerging database technologies and patterns; recommend and implement improvements.

5+ years of experience in database administration, site reliability engineering, or related roles.
Proven track record in managing mission-critical database environments in production.
Excellent problem-solving and analytical skills.
Strong communication and collaboration across engineering, product, and security teams.
Ability to manage multiple priorities and deliver in a fast-paced environment.
Proficiency with PostgreSQL (Aurora, RDS), Redis, DynamoDB, Kafka; Terraform, Crossplane; Kubernetes Operators for databases; CI/CD pipelines (GitLab CI/CD); Monitoring & Observability: Datadog, OpenSearch; Cloud Technologies: AWS, Networking, Security.