Walk-in || Application Support Engineer / L2 Support

Position title: Application Support Engineer / L2 Support

Technology Stack: Windows Server, Linux (RHEL, Ubuntu), Tomcat, JBoss, IIS, Apache, Nginx, Dynatrace, Zabbix, Grafana, Loki, Prometheus, RabbitMQ, Kafka, REST, SOAP, XML, JSON, PowerShell, Bash, Docker, Kubernetes, Azure, ServiceNOW, Confluence, Jira, Github, Jenkins, ArgoCD, PostgreSQL

Expected experience : Min. 5 years (including min. 3 years of working for international companies (EU/US))

Required skills & Tools

• 5+ years Kubernetes, Docker and Docker Swarm hands-on experience managing applications: deployments, updates, troubleshooting, log analysis, and daytoday maintenance
• Solid understanding of ITIL processes
• Strong ownership and proactive approach to operational responsibilities and problem-solving
• Ability to work independently, prioritize effectively, and take responsibility for assigned tasks
• Continuous improvement mindset, proactively identifying operational inefficiencies and proposing practical improvements and solutions
• Proactive problem-solving and knowledge base development to increase L2 resolution and reduce unnecessary L3 escalations
• Hands-on experience in troubleshooting with application servers and messaging platforms (preferably: Tomcat, JBoss, Apache, Rabbit MQ, Kafka) and automation (Bash, PowerShell scripting, automated jobs)
• Strong background in application deployments, updates, and migrations - including advanced troubleshooting using logs and configuration files (preferably: ArgoCD, GitHub Actions)
• Windows and Linux administration tasks
• Hands-on experience with SQL (preferably: PostgreSQL, MS SQL), including creating and maintaining CRUD queries, troubleshooting database-related issues, and query performance optimization
• Practical experience with monitoring and logging tools (preferably: Dynatrace, Zabbix, Grafana, Loki)
• Ticketing and project management tools (preferably: JIRA, ServiceNow, IBM SCCD)

Responsibilities

• Analyze and resolve incidents escalated from L1 Support
  Diagnose application errors using logs, monitoring tools and debugging techniques
• Reproduce issues and identify root causes related to application logic, database queries, integrations or user behavior.
• Monitor application performance, availability and error rates.
  Respond to alerts generated by monitoring platforms (e.g., Grafana, Dynatrace )
• Implement minor configuration adjustments and environment parameter changes when needed
• Escalate complex issues to L3/Development with complete technical context and evidence
• Work closely with DevOps, system administrators, database administrators and developers
• Participate in postincident reviews and prepare Root Cause Analysis (RCA).

Certifications: ITIL Foundation, Docker Certified Associate, CKA, Azure Fundamentals

Working hours / Timezone: 7:0017:00 CET/CEST

Availability for shift/on-call/24x7 duty as needed