Teja Appakondareddygari

• Design, implement, and manage scalable and resilient infrastructure solutions for Samsung's advertising technology platform.
• Collaborate with development teams to integrate DevOps best practices into the software development lifecycle.
• Implement and maintain CI/CD pipelines to automate software delivery and deployment processes.
• Monitor, troubleshoot, and optimize system performance to ensure high availability and reliability.
• Evaluating and estimating capacity and growth plan projections for future.
• Work closely with security teams to implement and enforce best practices for infrastructure security.
• Participate in on-call rotations to provide 24/7 support for critical systems.
• Continuously evaluate and implement new technologies to enhance the efficiency of our infrastructure.
• Being the Infrastructure and Operation subject matter expert for the development team.
• Plan for the future capacity and growth plans including disaster recovery and BCP.

• Consult teams and provide hands-on training to teams in observability, incident management, and reliability best practices.
• Includes defining SLOs\SLAs\SLIs, on-call support behaviors, troubleshooting, building support playbooks, implementing monitoring and alerting, logging standards, conducting fragility & performance testing.
• Successfully implemented Datadog for real-time monitoring and alerting, improving system observability and response times.
• Leveraged Terraform and Kubernetes to automate infrastructure provisioning, ensuring scalable and reliable environments.
• Conducted regular reviews to enforce best practices and align reliability strategies with business needs.
• Led discussions on failure points, chaos testing, and capacity management, enhancing system resilience.
• Ensure delivery teams in the product family track and meet annual operational goals (MTTR reduction, incident reduction, platform availability, SLO\SLA targets)
• Ensure automated delivery for all family-level products.

Technical Leadership and Infrastructure Management:

• Led and managed a team: Successfully led a team of 8 professionals dedicated to supporting a critical payments and billing platform.
• Capacity Planning and Resource Optimization: Continuously optimized costs by pinpointing over-allocated resources and proposing design optimizations, resulting in a remarkable reduction of the AWS Compute bill from $130,000/month to $25,000/month within one year.
• Hardware Decommission and Replacement: Strategically planned and executed the decommissioning and replacement of obsolete hardware, ensuring data integrity and preventing data loss.
• Data Center Simulation and Recovery Planning: Orchestrated pull-the-plug events simulating a data center loss while meeting all recovery time and recovery point objectives.

Performance Optimization and Troubleshooting:

• Contribution to Product Design: Continuously contribute to refining product design to align with production scenarios, ensuring seamless integration and optimal functionality.
• Scalability and Performance Optimization: Proactively enhance scalability and performance by assessing data growth, implementing auto-scaling techniques for peak loads, and optimizing SQL and MongoDB queries to achieve remarkable response times.
• Database Optimization: Identified and resolved performance bottlenecks in databases using stress and load tests, significantly improving application response time.
• Chronic Issue Resolution: Successfully troubleshooted and resolved various chronic issues within the application.
• Monitoring and Alerting: Implemented comprehensive monitoring and alerting for the entire platform, utilizing tools like AppDynamics, Grafana, Prometheus, Jobwatcher, custom scripts, OpenTelemetry, Splunk, Elastic, and CloudWatch.

System Health and Security:

• Monitoring Dashboards: Developed monitoring and analytics dashboards to gain a holistic view of application health and identify potential anomalies.
• Production Support and Security Compliance: Participated in production support calls, especially for troubleshooting priority-1 issues, and actively contributed as an escalation point of contact in on-call rotations.
• SSL Certificate and Keystore Management: Skillfully create and manage SSL certificates and keystores, ensuring secure encryption-based communication between application servers and dependent systems.

Process and Documentation:

• Change Management and Procedures: Authored and published change management, escalation, and emergency fix procedures and guidelines.
• Detailed Deployment Planning: Prepared detailed deployment plans with comprehensive cutover steps.
• High Availability and Disaster Recovery: Implemented high availability and created a disaster recovery runbook.
• Documentation and Training: Authored documentation for the entire product and specific troubleshooting/support manuals for individual services.
  

• Team Leadership: Led a dynamic team of 4 engineers responsible for supporting back-end Java services within the Alert Management System of the CareAware Connect mobile communication application.
• Automation and Performance Optimization: Implemented a Scheduler Job to capture TCP/UDP packets, enhancing understanding of data flow for troubleshooting network-related application issues.
• Problem Resolution and Support: Provided valuable assistance in analyzing, reviewing, and resolving software issues and support cases.
  Corrected database replication issues by identifying data spikes and addressing root causes of duplicate transactions.
• Alert Accuracy Improvement: Enhanced the accuracy of patient alerts to handheld devices for healthcare providers by optimizing server-side rules engine filters.
• Documentation and Communication: Developed and managed a Known Error Database and analyzed operational support procedures.
• Leadership and Guidance: Provided assistance and guidance to team members on various development areas.
  

• Comprehensive SDLC Involvement: Played a pivotal role in all phases of the Software Development Life Cycle (SDLC), covering design, analysis, modeling, development, and system testing.
• Change Management and Documentation:Transformed Functional Design Documents (FDD) into actionable Change Request Documents (CRD) for developers, following stakeholder meetings.
• Design Patterns and Development:Implemented the MVC design pattern for a scalable and maintainable architecture.
• Development:Developed the presentation layer using JSP, HTML, and JavaScript.
  Crafted Application controllers, Business, and Data service modules for web applications.
• Database Interaction:Implemented PL/SQL stored procedures, triggers, cursors, and views using Oracle.
• Hibernate and Spring Integration:Utilized Hibernate integrated with Spring Framework, writing HQL queries for efficient data persistence.
  

• Network Devices Proficiency: Install, monitor, and troubleshoot Cisco routers, multi-layer switches, ASA Firewalls, Dell SonicWALL firewalls, and Cisco Meraki & Aironet wireless networks.
• Network Operations Expertise: Manage company VLANs, VPN tunnels, MPLS, and VOIP technology for seamless and secure network operations.
• Technical Support Excellence: Provide escalated technical support to internal customers, effectively resolving incident and problem tickets.
• Infrastructure Documentation: Maintain comprehensive documentation of the company's WAN/LAN infrastructure and security policies.
• Cross-Functional Support: Support help desk, onsite support, and server management teams in resolving network, firewall, and VOIP-related issues.