Senior Level 1 Application Support​/DBA Engineer

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Senior Level 1 Application Support / DBA Engineer

PBT Group is seeking a Senior Level 1 Application Support / DBA Engineer to support a highly available enterprise application environment operating across multiple data centres.

The successful candidate will play a critical role in application support, database administration support, monitoring, troubleshooting, and operational stability across a complex distributed architecture. This role requires strong exposure to Linux-based environments, PostgreSQL, monitoring and observability tooling, enterprise application support, and infrastructure troubleshooting.

The environment includes high-availability application platforms, database replication, load balancing, event streaming technologies, and modern monitoring stacks. The ideal candidate will have a strong operational mindset, excellent troubleshooting capability, and the ability to work effectively across infrastructure, database, and application support functions.

This is an urgent senior support opportunity suited to candidates who thrive in fast-paced, highly technical production environments.

• Provide Level 1 and Level 2 application support across enterprise platforms and services.
• Monitor application health, system availability, database performance, and infrastructure stability.
• Investigate, troubleshoot, and resolve production incidents within agreed SLAs.
• Analyse logs, identify root causes, and escalate complex technical issues where required.
• Support Java-based enterprise applications in production environments.
• Assist with application deployments, environment validations, and operational readiness activities.
• Participate in support rotations and operational standby processes where required.

• Support PostgreSQL database environments, including replication monitoring and connectivity troubleshooting.
• Assist with database performance monitoring and operational maintenance activities.
• Work with high-availability environments including active/passive failover configurations.
• Support infrastructure services including load balancers, reverse proxies, and monitoring platforms.
• Monitor replication and failover environments using tools such as Repmgr and Keepalived.

• Monitor enterprise systems using Prometheus, Grafana, Loki, and associated exporters.
• Investigate alerts and performance issues across infrastructure, applications, and databases.
• Create and maintain operational dashboards and alerting visibility.
• Work with Alert manager and Jira-integrated alerting processes.

• Develop and maintain operational scripts using Bash and Python.
• Support CI/CD and operational automation initiatives.
• Contribute to continuous improvement of monitoring, alerting, and operational support processes.
• Maintain technical support documentation and operational procedures.

• Collaborate with development, infrastructure, DBA, and Dev Ops teams.
• Provide clear communication and updates to stakeholders during incidents and investigations.
• Maintain operational standards, governance processes, and support documentation.
• Support production stability and platform resilience initiatives.

• HAProxy
• Keepalived
• NGINX

• Repmgr

• Kafka
• Zoo Keeper
• Jasper Reports
• Keycloak

• Grafana
• Alert manager
• Loki / Promtail
• JMX Exporter

• Bash scripting
• Python scripting
• YAML configuration

• Git
• Git Lab CI / Git Hub Actions exposure advantageous
• Jira

• 5+ years’ experience in application support, production support, or infrastructure support environments.
• Strong Linux administration and troubleshooting capability.
• Experience supporting enterprise applications in production environments.
• Exposure to PostgreSQL or similar relational database technologies.
• Experience with monitoring and observability platforms.
• Strong troubleshooting and root cause analysis…