Vaddi Poorna Saikiran
Java Backend Engineer
VIJAYAWADA
Summary
Results-driven Java Backend Engineer with 8 + years of experience in designing, building, and supporting scalable enterprise systems.
Proven expertise in Java 8+, Spring Boot, Microservices, Kafka, Docker, CI/CD, and cloud-ready deployments.
Strong background in production reliability, system design, and real-time data processing.
Overview
8
8
years of professional experience
1
1
Certificate
Work History
Production Support Engineer
TATA Consultancy Services (Client: USAA - P&C Auto Insurance)
09.2022 - Current
- Monitored production systems processing ~5 M transactions daily; reduced incident resolution time by 40 % through proactive alerting and root-cause automation.
- Served as on-call engineer ensuring zero SLA breaches by coordinating cross-team incident resolution.
- Analyzed recurring error patterns and implemented preventive fixes, enhancing system stability.
Java Developer
TATA Consultancy Services (Client: USAA)
11.2019 - 08.2022
- Migrated over 100+ hardcoded service account credentials from Java EE applications to CyberArk, significantly enhancing security and eliminating credential exposure across 15+ critical TPM applications.
- Integrated secure database connectivity using CyberArk-managed service accounts, and set up monitoring for service account activities.
- Coordinated with the application, security, and database teams to ensure a smooth migration, implementing rollback mechanisms using feature flags for controlled deployment.
ETL Operations and Support Engineer
TATA Consultancy Services (Client: Cardinal Health)
05.2018 - 11.2019
- Monitored and supported critical ETL jobs (daily, weekly, monthly), resolving database/server issues, performing routine server health checks, document generation, and access management.
- Delivered L1.5 support and minor enhancements using SQL, IBM Data Stage, and Dell Boomi to meet evolving client requirements.
Education
Bachelor of Science - Computer Science
Gandhi Institute of Technology And Management
Visakhapatnam, India 04.2001 -
Certification
AWS Certified Cloud Practitioner – Amazon Web Services (2025)
Timeline
Production Support Engineer
TATA Consultancy Services (Client: USAA - P&C Auto Insurance)
09.2022 - Current
Java Developer
TATA Consultancy Services (Client: USAA)
11.2019 - 08.2022
ETL Operations and Support Engineer
TATA Consultancy Services (Client: Cardinal Health)
05.2018 - 11.2019
Bachelor of Science - Computer Science
Gandhi Institute of Technology And Management
04.2001 -
Technical Summary
Languages: Java 8+, SQL, JavaScript (ES5)
Frameworks: Spring Boot, Spring Cloud, Spring Security, JPA/Hibernate
Messaging & Streaming: Apache Kafka, Kafka Streams
Databases: MySQL
DevOps & Tools: Docker, Kubernetes, OpenShift, GitLab CI/CD, Maven, GIT
Monitoring & Logging: ELK Stack, Prometheus, Grafana
Concepts: Microservices Architecture, System Design, RESTful API Design, OOPs, DSA (Java), Agile/Scrum
Cloud: AWS (Cloud Practitioner Certified)
Key Achievements
- Reduced incident resolution time by 40 % through automated alerting and runbook creation.
- Improved system uptime to 99.98 % by eliminating recurrent root causes.
- Automated credential migration to CyberArk, enhancing security compliance and audit readiness.
personal projects
Order Processing and Real-Time Analytics System
Tech Stack: Java 8, Spring Boot, Apache Kafka & Kafka Streams, MySQL, Docker, OpenShift, GitLab CI/CD, ELK, Prometheus, Grafana, Spring Security
- Designed an event-driven microservice architecture for processing orders and real-time sales analytics.
- Implemented Kafka Streams to process order events in real-time and publish aggregated metrics.
- Secured REST APIs using Spring Security and JWT authentication.
- Containerized services using Docker and automated deployment with GitLab CI/CD.
- Integrated Prometheus & Grafana for system health and throughput monitoring.