Application Maintenance Engineer

About this role

About Avaron AB

Avaron AB is a growing consultancy specializing in matching the right expertise with the market's most interesting assignments. As an employee of Avaron, you work on-site at our clients – combining the security of permanent employment with the variety and growth opportunities of a consulting career. About the Assignment In this role, you help keep business-critical enterprise applications stable, updated, and reliable across Linux and Windows environments. You work with L2/L3 application operations in a structured setup where documented procedures, collaboration, and continuous improvement are central parts of the work. You will work closely with the Application Maintenance Lead as well as teams in maintenance, QA, development, and operations. The assignment combines instruction-based maintenance with deeper analysis when incidents, configuration issues, or release activities require investigation across application, OS, network, and container layers. You will support internal enterprise systems such as ServiceNow, Confluence, and other business applications, with a strong focus on troubleshooting, validation, documentation, and operational quality. Job DescriptionExecute maintenance, configuration, and update tasks based on documented procedures. Investigate incidents and perform root cause analysis across applications, operating systems, and containers. Review system, application, and container logs to identify issues and propose corrective actions. Validate configurations and verify service functionality after releases and infrastructure changes. Support change and release activities, including pre-checks, post-validation, and rollback coordination. Monitor application health and identify risks or deviations early. Carry out approved configuration updates and minor fixes in supported environments. Collaborate with application owners, infrastructure teams, and peers to isolate and resolve issues. Maintain and improve operational documentation, ru