Jeena K Sabu

Software Engineer with 3+ years of experience at Cognizant, combining strong Java/Spring Boot backend development skills and supporting business-critical enterprise applications. Skilled in L2/L3 production support, incident and problem management, SQL query analysis, log monitoring using Splunk and Dynatrace, ServiceNow ticket handling, root cause analysis(RCA), application deployments, and production monitoring. Experienced in Java and Spring Boot-based applications, REST APIs, and Agile environments.

Proven ability to resolve high-priority incidents within SLA, improve system stability, and collaborate with development, infrastructure, and business teams to ensure seamless application performance.

Software Engineer - Cognizant

• Developed and enhanced Java Spring Boot backend modules, implementing RESTful APIs consumed by multiple downstream services in a microservices architecture.
• Resolved 60+ P1/P2 production incidents within SLA through rapid triage, log analysis via Splunk, and Dynatrace APM monitoring — reducing downtime by ~20%.
• Performed root cause analysis (RCA) on recurring production issues, delivering permanent code-level and configuration fixes that reduced repeat incidents by 30%.
• Optimized SQL queries and backend logic, improving API response times and reducing database load on critical application workflows.
• Supported CI/CD pipeline operations via Jenkins and GitHub, participating in production deployments and post-release validation on PCF.
• Collaborated with cross-functional Agile teams (Dev, QA, DevOps) for sprint deliverables, hotfixes, and deployment coordination.

Programmer Analyst - Cognizant

• Built and maintained backend features in Java, reducing average defect resolution time by 25% through structured debugging and code analysis.
• Developed and optimized REST API integrations with third-party platforms, resolving interface issues impacting downstream systems.
• Designed complex SQL queries and worked with Oracle collections for data validation, reporting, and backend troubleshooting workflows.
• Managed end-to-end incident lifecycle in ServiceNow — from triage and escalation to resolution and knowledge base documentation.
• Supported application deployments across environments, performing smoke testing and coordinating rollback procedures when needed.
• Authored runbooks, API documentation, and knowledge base articles to improve team efficiency and onboarding for new support engineers.

Programmer Analyst Trainee - Cognizant

• Contributed to Java backend development including feature implementation, bug fixing, and unit testing under senior engineer guidance.
• Assisted in debugging Java applications through log analysis and code review, gaining strong understanding of OOP and backend design patterns.
• Gained hands-on exposure to REST API concepts, SQL database interactions, Splunk log monitoring, and ServiceNow ticket management.
• Documented support procedures and incident resolutions, building institutional knowledge for the production support team.

B.E. - Computer Science Engineering - Amal Jyothi College of Engineering (2022)