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Ensono is a hybrid IT services provider that sees a world in transformation. We understand the world of business has become more complex, layered, and interdependent because we’re enabling the IT infrastructure for that transformation. Our clients are some of the most innovative and forward-thinking companies in the world and we help keep their businesses thriving. With nearly 50 years of experience, we optimize and modernize IT infrastructure by amplifying the power of mainframes and mid-range servers with the agility of cloud. Check us out at www.ensono.com.

Job Description: L2 Application Support Specialist

Experience

3–6 years

Work Model

Hybrid | Rotational Shifts

Role Overview

We are looking for an experienced L2 Application Support Specialist to provide production support and operational ownership for business-critical applications. The role involves advanced troubleshooting, incident and problem management, application monitoring, automation, root cause analysis, and close collaboration with Development, Infrastructure, Database, Middleware, and Security teams.

The ideal candidate should have strong experience supporting Java and .NET applications, along with excellent Linux/Unix, scripting, monitoring, and ITSM capabilities.

Key Responsibilities

Incident & Problem Management

Own end-to-end resolution of incidents escalated from L1 support.
Perform advanced troubleshooting of Java/.NET applications, application logs, JVM parameters, configurations, and platform components.
Participate in and, where required, lead Major Incident (MI) bridges.
Perform detailed Root Cause Analysis (RCA) and coordinate permanent fixes.
Identify recurring incidents, operational trends, and preventive actions.
Provide clear and timely technical updates during production incidents.

Change, Release & Operational Readiness

Review and support production changes related to applications and middleware.
Perform post-change validation, production checkout, and application health checks.
Identify risks associated with Java versions, certificates, dependencies, and application configurations.
Ensure applications meet agreed availability, performance, resilience, and operational readiness requirements.
Support Disaster Recovery (DR) validation and resilience activities.

Monitoring, Automation & Maintenance

Monitor application availability, performance metrics, logs, and overall system health.
Develop and enhance automation scripts using Shell, Python, and/or PowerShell.
Automate health checks, production validations, and repetitive operational tasks.
Improve monitoring dashboards, alerts, and observability coverage.
Work with monitoring and observability platforms such as Splunk, Grafana, Dynatrace, AppDynamics, ELK, Informatica, and AppWorks.
Maintain and regularly update runbooks, SOPs, and knowledge-base articles.

Collaboration & Stakeholder Management

Work closely with Development (L3/L4), Infrastructure, Database, Middleware, Network, and Security teams.
Act as the primary operational contact for assigned applications.
Coordinate technical troubleshooting across multiple support teams.
Provide clear technical and business-facing updates during incidents, changes, and production issues.

Required Technical Skills

Strong experience in L2 Application / Production Support.
Strong fundamentals and troubleshooting skills in Java and .NET applications.
Strong knowledge of Unix/Linux environments.
Good understanding of networking concepts and application connectivity troubleshooting.
Hands-on scripting experience with Shell, Python, and/or PowerShell.
Experience with observability/monitoring tools such as:
Splunk
Grafana
Dynatrace
AppDynamics
ELK
Informatica
AppWorks
Strong understanding of ITSM processes, particularly Incident, Problem, and Change Management.
Hands-on experience with RCA, Major Incident Management, DR validation, and application resilience.
Experience troubleshooting application logs, JVM parameters, certificates, dependencies, and configurations.

Preferred Skills

Experience improving or automating application support processes.