Enterprise Middleware Administrator

2 weeks ago

Singapore beBeeAdministration Full time $90,000 - $120,000
Job Description

We are seeking a skilled system administrator to join our team. The ideal candidate will have experience administering Tomcat and/or WebLogic in enterprise environments.

  • Environment Build & Configuration:
  • Install, configure, and maintain Tomcat instances (service wrappers, JVM settings, thread pools, virtual hosts, context paths, connectors).
  • Configure WebLogic domains, admin/managed servers, clusters, data sources (JDBC), JMS, connection pools, and node managers.
  • Implement SSL/TLS, manage keystores/certificates, and enforce secure cipher suites and protocols.
  • Deployment & Release Support:
  • Support deployment of Java applications (WAR/EAR) across Dev/QA/Prod.
  • Integrate application services with APIs, databases, and SFTP endpoints.
  • Automate repeatable tasks (startup/shutdown, deployments, health checks).
  • Operations, Monitoring & Troubleshooting:
  • Proactively monitor application and middleware health; configure logging and log rotation.
  • Integrate and tune alerts with tools such as Splunk (logging/observability) and Tenable (vulnerability posture).
  • Diagnose and resolve incidents related to JVM performance, memory leaks, thread contention, connection pooling, and deployment failures.
  • Implement and maintain high availability & load balancing configurations.
  • Security & Compliance:
  • Apply OS and middleware security patches and updates on a regular cadence (Windows & Linux).
  • Remediate vulnerabilities; maintain configuration baselines aligned to security standards and hardening guides.
  • Manage certificate renewals and secrets/keystore hygiene.
  • Platform & Infrastructure Administration:
  • Support Windows Server services (WSUS, basic file/NTFS permissions) and Linux administration for middleware hosts.
  • Active Directory basics: user/groups, GPO awareness, DNS entries relevant to app hosting.
  • Manage Symantec Endpoint Protection Manager (SEPM) policies on servers.
  • DevOps & Automation:
  • Use GitLab (CI/CD) for pipeline-driven deployments where applicable.
  • Leverage Docker for packaging middleware tools/utilities; use Terraform for IaC in supported environments.
  • Contribute to runbooks, SOPs, and environment documentation.
  • Service Management:
  • Handle user requests and operational queries within SLAs.
  • Participate in problem reviews/RCAs and drive continual service improvement.
Required Skills & Qualifications
  • 3–6 years' hands-on experience administering Tomcat and/or WebLogic in enterprise environments.
  • Strong knowledge of Java application hosting, JVM tuning, JDBC data sources, and web security (SSL/TLS, certs, ciphers).
  • Proficiency with SQL fundamentals for connectivity/health checks (any RDBMS).
  • Solid experience with Linux (RHEL/CentOS/Ubuntu) and Windows Server basics.
  • Experience with logging/monitoring (e.g., Splunk) and vulnerability tooling (e.g., Tenable).
  • Familiarity with GitLab CI/CD, Docker, and Terraform (working level).
  • Scripting in Bash and/or PowerShell for automation.
  • Strong troubleshooting, documentation, and stakeholder communication skills.
Benefits

Working in this role will provide the opportunity to develop your technical skills and gain valuable experience in a fast-paced IT environment.

Others

The company values employee development and offers training opportunities to enhance your skills.

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