Systems Administrator

Responsibilities

• Install, configure, and maintain Red Hat Enterprise Linux (RHEL) servers in AWS cloud environments (EC2 instances).
• Administer and troubleshoot Java/J2EE applications deployed on WebLogic application servers, including configuration of JDBC data sources, connection pools, and JVM performance monitoring.
• Provide system-level support for Oracle RDS, collaborating with DBA teams for performance tuning, backup, and recovery.
• Monitor system performance, availability, and security using tools like Dynatrace, CloudWatch and implement robust troubleshooting procedures for application and infrastructure issues.
• Build a Proof of Concept (POC) for rebuilding the legacy Java/J2EE application using modern AWS services (e.g., Lambda, ECS/EKS, S3), microservices to improve scalability, reliability, and cost-efficiency.
• Automate routine administrative tasks using scripting languages (Shell, Python, Jython, WLST) to increase operational efficiency.
• Work closely with development, testing, and operations teams to bridge the gap between development and operations, ensuring smooth software delivery and knowledge sharing.

Qualifications

• Proven experience as a System Administrator or DevOps Engineer managing enterprise-level applications.
• Strong expertise in AWS cloud services (EC2, S3, VPC, IAM, CloudWatch, etc.).
• Hands-on experience with Red Hat Enterprise Linux (RHEL) administration.
• Proficiency in administering WebLogic application servers and supporting Java/J2EE applications.
• Familiarity with Oracle databases from a system administration perspective.
• Experience with version control systems, specifically GitLab, and CI/CD practices.
• Strong scripting skills (Shell, Python, etc.).
• Knowledge of networking concepts and security best practices in cloud environments.
• Experience or familiarity with healthcare data management and compliance standards is a plus.
• Develop POC for migrating code base from WebLogic to JBoss, and ORACLE RDS to Postgres.
• Hands-on with Containerization.
• Collaboration work with development teams to streamline the process.