Irfan basha Shaik

Project: Banking Domain (First Citizens Bank)

• Provided L2 production support for applications running on Linux and Windows environments, ensuring system uptime and performance compliance with SLAs.
• Monitored application and infrastructure performance using Grafana and Kibana, analyzing metrics and logs to detect and resolve critical issues.
• Investigated and resolved container orchestration issues within Kubernetes, such as pod failures, resource limits, and volume mount errors.
• Managed containerized deployments using Docker, optimizing image builds, and maintaining the container lifecycle in Dev and Prod environments.
• Supported CI/CD pipelines using Jenkins, enabling smooth deployments, and reducing manual intervention through automation.
• Executed and optimized queries, stored procedures, and indexing strategies for MS SQL and PostgreSQL to improve database efficiency and performance.
• Utilized Postman to test and validate RESTful APIs, identifying backend issues, and verifying integration points across services.
• Handled incident and problem management through ServiceNow and Jira, coordinating with cross-functional teams for RCA, escalation, and resolution.
• Worked with Azure DevOps and Visual Studio for source control, build releases, and code integration across multiple branches and environments.
• Conducted regular system health checks, log reviews, and capacity monitoring, escalating potential risks before the impact on production services.
• Deployed and managed containerized workloads in AWS EKS, ensuring high availability and auto-scaling of Kubernetes clusters.
• Built and pushed container images to AWS ECR, integrating them with Jenkins pipelines for secure and efficient deployments.
• Identified and resolved service discovery issues using kubectl describe, DNS resolution checks, and inspecting CoreDNS logs.
• Provided L2 support for MySQL and PostgreSQL databases, including routine checks, user access control, and backup/restore operations.
• Supported developers and application teams in debugging database-related issues and writing optimized SQL queries.
• Conducted database health checks and implemented alerts for disk usage, replication lag, connection limits, and failed queries.
• Collaborated with DevOps and engineering teams to escalate L3-level issues, propose fixes, and validate post-deployment changes.
• Authored and maintained runbook, SOPs, and knowledge base articles for recurring issues, significantly improving L1 and L2 resolution rates.

Project: Consumer & Community Banking (ATM Reconciliation Services)

• Reconciled ATM cash balances by comparing audit data with core banking system reports to ensure accurate settlement of ATM cash replenishments and withdrawals.
• Identified cash shortages or overages post-audit, and performed root cause analysis through tools and transaction logs.
• Investigated customer-impacting issues, such as failed ATM transactions, double debits, or missing credits, using internal systems and reconciliation tools.
• Performed adjustments and offsetting entries in the system to correct mismatched or pending transactions after verification and approval.
• Conducted escheatment research and dispute analysis to trace financial mismatches, ensuring customer funds were correctly accounted for.
• Coordinated with audit teams, vendors, and internal stakeholders during weekly and monthly audits to maintain compliance and reporting standards.
• Generated reconciliation and exception reports for management review, ensuring accurate financial reporting.
• Supported internal quality checks and ensured adherence to compliance policies and SLA timelines.