L3 Support Engineer

3 days ago

Pune, Maharashtra, India Citi Full time ₹ 10,00,000 - ₹ 25,00,000 per year

Position Overview

We are seeking an experienced L3 Support Engineer with strong expertise in Java-based applications, database troubleshooting, and DevSecOps practices. The ideal candidate will act as the highest level of support escalation, ensuring critical applications run smoothly, analyzing complex issues, and collaborating with development and operations teams to drive permanent fixes and system improvements.

Key Responsibilities

  • Application Support (L3):
    • Handle escalations from L1/L2 teams, perform root cause analysis, and resolve complex production issues.
    • Debug Java applications (Spring, REST APIs, microservices) in production and staging environments.
    • Collaborate with development teams to provide permanent fixes and suggest code-level improvements.
  • Database Troubleshooting:
    • Perform advanced SQL query analysis, indexing, and query optimization.
    • Diagnose DB performance issues, deadlocks, replication errors, and data integrity concerns.
    • Work with DBAs to design schema changes and implement corrective actions.
  • DevSecOps & Environment Management:
    • Manage CI/CD pipelines (Jenkins, GitLab CI, or similar) for deploying hotfixes and releases.
    • Apply security best practices in application and infrastructure support (vulnerability scanning, patching).
    • Automate monitoring, alerts, and log analysis using tools like ELK/EFK, Prometheus, Grafana, or Splunk.
    • Support containerized and cloud-native applications (Docker, Kubernetes, OpenShift, AWS/Azure).
  • Incident & Problem Management:
    • Ensure SLAs are met by monitoring, triaging, and resolving P1/P2 incidents.
    • Conduct post-incident reviews and drive permanent fixes via problem management.
    • Maintain runbooks, SOPs, and knowledge base for recurring issues.

Required Skills & Experience

  • Technical Skills
    • Strong knowledge of Java / J2EE, Spring Boot, REST APIs debugging.
    • Hands-on with SQL / Oracle / PostgreSQL / MySQL query tuning & troubleshooting.
    • Experience with CI/CD tools (Jenkins, GitLab, Azure DevOps).
    • Knowledge of DevSecOps practices (security scanning, compliance automation, secrets management).
    • Exposure to cloud platforms (AWS, Azure, GCP) and container orchestration (Docker, Kubernetes, OpenShift).
    • Familiarity with monitoring & logging tools (Splunk, ELK, Prometheus, Grafana).
    • Should leverage AI technologies for process optimisation and day to day work.
  • Soft Skills
    • Strong problem-solving & debugging skills.
    • Ability to work under pressure during production incidents.
    • Excellent communication skills to collaborate across Dev, Ops, Security, and Business teams.

Preferred Qualifications

  • Bachelor's/Master's degree in Computer Science, Engineering, or related field.
  • 5+ years of L2/L3 Application Support experience in enterprise environments.
  • Certifications in Java, Cloud (AWS/Azure), Kubernetes, or DevOps are a plus.

Job Family Group:

Technology

Job Family:

Digital Software Engineering

Time Type:

Full time

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi's EEO Policy Statement and the Know Your Rights poster.

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