Summary
✨ AI‑Generated
A hands-on senior middleware engineering role responsible for administration, deployment, upgrades, troubleshooting, and optimization of enterprise application server environments.
Highlights
Join an international infrastructure team managing critical production systems with opportunities to work on performance, reliability, and enterprise-scale environments.
Description
We are seeking a senior, hands-on infrastructure and middleware specialist to manage business-critical production systems.
This is an operational L2/L3 role focused on high availability, performance tuning, and strict enterprise processes (not a Java development position).
You will work within an international environment supporting large-scale environments.
Team Structure: Middleware Team (6 specialists in Poland collaborating with Italian and German colleagues, reporting to Italian management)
Start Date: October 1, 2026
Work Model: Flexible EMEA hours (8 hours/day between 06:00–18:00 CEST); minimal out-of-hours/on-call duties (max 5%/year)
Key Responsibilities
Administer, configure, deploy, patch, upgrade, and troubleshoot Red Hat JBoss EAP / JBoss application servers.Perform JVM and JBoss performance tuning (memory, threads, connection pools, garbage collection).Manage JBoss clustering, high availability setups, and production environments.Handle L2/L3 production support, incident/problem management, and root-cause analysis (RCA).Automate operational tasks using Shell scripting and Ansible.Maintain web servers, reverse proxies, load balancers, and TLS/SSL configurations.
Requirements
Mandatory Skills & Experience:
5+ years of hands-on experience with Red Hat JBoss EAP / JBoss application servers.Strong background in Linux/Unix operating systems administration.Demonstrated experience in JBoss clustering, high availability, and large-scale enterprise production environments.In-depth knowledge of JVM/JBoss performance tuning (memory, threads, GC, connection pools).Hands-on experience with L2/L3 support, incident/problem management, and RCA.Understanding of web servers, reverse proxies, load balancers, and TLS/SSL.Proficiency with Shell scripting and/or Ansible for automation.Strong independent troubleshooting skills and fluent English communication.Nice to Have:
Red Hat OpenShift, Kubernetes, or containerized environments.Exposure to enterprise banking or highly regulated environments.Familiarity with other middleware platforms (IBM MQ, Apache Tomcat, WebSphere).Experience with enterprise monitoring and observability tools.
