L2 Application Support Engineer

4. Communication & Stakeholder Management

5. Documentation & Knowledge Management

Required Technical Skills

• Scripting & Automation - Proficiency in writing and debugging Shell scripting (Bash), PowerShell , or Python to automate daily tasks and analyze log files.
• Databases & Querying - Strong SQL skills (Oracle, MS SQL, Sybase, or PostgreSQL). Ability to write complex select queries, joins, analyze execution plans, and run database scripts.
• Middleware & Web Servers - Working knowledge of Apache , Tomcat , Nginx , WebSphere, and messaging queues like IBM MQ , RabbitMQ , or Apache Kafka .
• Cloud & Containerization - Familiarity with Docker , Kubernetes , OpenShift , or cloud infrastructure (AWS/Azure) concepts and container deployments.
• Monitoring & Logging - Hands-on experience with tools such as Splunk , ELK Stack , AppDynamics , Dynatrace , Grafana , or ITRS Geneos .
• ITSM & Collaboration - Experience with ticketing tools like ServiceNow or Jira , and version control systems like Git or Bitbucket.

Required Professional & Soft Skills

• Analytical Mindset: Excellent logical reasoning and problem-solving skills; ability to systematically break down a complex issue.
• Communication: Exceptional verbal and written communication skills, with the ability to translate technical details into plain language for business teams.
• Pressure Tolerance: Calm demeanor under pressure, especially during high-severity system outages.
• Team Collaboration: Ability to work cohesively in a global, distributed cross-functional environment.

Qualifications & Experience

• Education: Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical discipline.
• Experience: 5+ years of experience in an application support, technical support, or systems engineering role (preferably in an enterprise or financial services environment).
• Certifications (Desirable): ITIL v3 or v4 Foundation certification. Professional certifications in AWS/Azure, Kubernetes (CKAD), Linux Administration, or Oracle/SQL.
• ITIL v3 or v4 Foundation certification.
• Professional certifications in AWS/Azure, Kubernetes (CKAD), Linux Administration, or Oracle/SQL.
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• Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.
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