V S Kaladhar Darbha
New Market
Summary
Dynamic Sr DevOps Engineer with extensive experience at CMS/EPS, excelling in CI/CD pipeline creation and infrastructure automation. Proven track record in optimizing Akamai CDN and implementing DevSecOps practices, enhancing application performance and security. Strong collaborator, driving cross-functional success while ensuring efficient application deployment and scaling.
Overview
15
15
years of professional experience
6
6
Certification
Work History
Sr DevOps Engineer
CMS/EPS – Sparksoft MD
03.2023 - Current
- Enterprise Portal project supports the implementation of a viable and effective portal program. The essence of the CMS Enterprise Portal strategy is the user interface (UI) presented by a portal as an 'Integration Glass,' a single window through which users may see and access information and applications from multiple sources, based on each individual user’s roles and permissions. A portal combines and displays content and forms from multiple applications and information sources, supports users with navigation and cross-enterprise search tools, supports simplified sign-on, and uses role-based access and personalization to present each user with only relevant content and applications. Portal benefits include enhanced productivity, efficiency, workflows, communication, and the exchange of ideas among CMS user communities. Enterprise portal also provides several self-service functionalities like Cache purge, Maintenance pages, Enterprise Portal Object Repository (EPOR), TAME (Test Account Made Easy), Notification as a Service (NaaS), Chatbot etc.
- Implemented DevSecOps practices organization-wide, integrating security measures into each stage of development to strengthen application security and compliance.
- Designed and managed secure CI/CD pipelines using tools like Jenkins, GitHub, Terraform and AWS services
- Extensively utilized tools like Terraform and CloudFormation for provisioning and managing AWS infrastructure.
- Optimized ECS cluster performance through fine-tuning task definitions and service configurations, enhancing resource utilization and application responsiveness.
- Experience in Akamai CDN management with configuration, optimization and maintenance of AKAMAI CDN solutions.
- Managed and secured APIs using Akamai’s API Gateway, ensuring efficient, secure data exchange for web applications.
- Worked extensively with AWS services like EC2, S3, VPC, ELB, Autoscaling Groups, Route 53, IAM, CloudTrail, CloudWatch, CloudFormation, CloudFront, SNS, and RDS.
- Creating a fully Automated Build and Deployment Platform and coordinating code builds promotions and orchestrated deployments using Jenkins.
- Collaborated with cross-functional teams to facilitate seamless transitions and releases, contributing to environment stability and operational continuity.
- Configured SSL profiles in F5 console to accept TLS 1.3 protocol for security improvements.
- Experience in creating Dashboards and alerts in Splunk and New Relic to improve Reliability and monitoring of the applications.
- Orchestrated AWS EC2 instances with Auto-scaling, Elastic Load Balancing, and Glacier for QA, UAT, and infrastructure servers. Implemented Jenkins jobs for Maven-based artifact builds and Terraform template deployments.
- Environment: GitHub, Jenkins, Docker, Kubernetes, AWS (Amazon web services), Terraform, Linux, DynamoDB, New Relic, Splunk, Akamai, F5
Performance Test Architect & Site Reliability Engineer
CMS/IDM C-HIT MD
07.2019 - 03.2023
- CMS Identity Management (IDM) system is an established, enterprise-wide, identity management solution. IDM is leveraged by CMS business applications across the agency. End users of all business applications that integrate with this solution can use a single set of user credentials to access any integrated application. IDM System Authenticates and provides role-based access to the end users. IDM Provides services like Authentication, Authorization, helpdesk based roles, Identity proofing (RIDP). Several CMS Systems/APPS will be integrated through IDM to utilize the above services.
- Worked to benchmark the rate limits of the IDM system including Okta as per the business requirement.
- Developed New Relic and Amazon CloudWatch dashboards to monitor system performance in production and lower environments.
- Configured and implemented DLTA (Distributed Load Testing in AWS).
- Created real-time scenarios in collaboration with end users, architects, and business teams; executed performance tests to identify bottlenecks, enabling timely fixes in lower environments early in the project lifecycle.
- Develop Test scripts and scenarios using Load Runner and JMeter suite, Analyze Application under test by metrics like Throughput, Hits/Sec, Response times, CPU and Heap Utilization on different Application Tiers.
- Developed scripts for creating test data for functional, automation and business teams so that repetitive tasks are avoided by automation that led error free and bulk test data creation.
- Monitored long and slow-running sql queries, CPU and memory usages, garbage collections during the testing and provided appropriate recommendations.
- Configured Daily System Health Reports and automated the delivery process.
- Automated Daily Health Reports and ensure the Application is up and running with minimal downtime.
- Worked on JMeter Plugins to create Dashboard reports.
- Hands on experience with Jira and Agile methodology.
- Drafted and distributed release notifications and government deliveries to downstream and upstream stakeholders, ensuring clear communication and coordination.
- Been Primary and Secondary on-call support engineer and identified issues and helped Application team to identify the bottlenecks to resolve them.
- Working on Cloud migration project for all SOA services on enterprise level from on-prem to AWS-EKS.
- Environment: LoadRunner, ALM, Oracle web center, Oracle Enterprise, New Relic, JAVA Jira, .NET, ALM, Web, Windows 2000/XP, AIX, Linux, Windows Server 2012 R2, AWS EC2, AWS ECS, AWS EKS, Cloud Watch, DLTA
Sr Performance Engineer
Compest Solutions/Anthem BCBS- OH
01.2019 - 07.2019
- Stressed system beyond peak hour load tests to identify application, hardware, or network breaking points.
- Expertise in identifying backend calls for API and identify the bottleneck necks.
- Identified long-running queries and collaborated with development team to review code causing slowness.
- Develop Test scripts and scenarios using Load Runner suite, Analyze Application under test by metrics like Throughput, Hits/Sec, Response times, CPU and Heap Utilization on different Application Tiers.
- Worked on Tuning performance issues on Intranet sites.
- Hands on experience with Oracle Enterprise Manager and Identify the SQLs that are taking high response time and work with DBA on setting the right execution plan.
- Monitor Inactive sessions in Performance as well as in prod and address them with DBAs and Dev team.
- Develop Splunk queries and fetch stats like TPS and current response times from logs.
- Contributed to the setup of Splunk and Wily Dashboards to improve system visibility.
- Worked with Docker container environment and Recommend JVM OPTS.
- Monitored Garbage collections and Heap usage of young and old generations.
- Anthem BCBS is an American health insurance provider. The company's services include medical, pharmaceutical, dental, behavioral health, long-term care, and disability plans through affiliated companies such as Anthem Blue Cross and Blue Shield, Empire BlueCross BlueShield in New York State, Anthem Blue Cross in California, Wellpoint, and Carelon. It is the largest for-profit managed health care company in the Blue Cross Blue Shield Association.
- Environment: LoadRunner, Controller, Wily Introscope, Splunk, Oracle web center, Oracle Enterprise, Akamai, Docker Container JAVA, .NET, ALM, Web, Windows 2000/XP, AIX, Linux, Windows Server 2012 R2
Performance Engineer
Compest Solutions/CareFirst BCBS- MD
10.2012 - 01.2019
- Executed test planning, designed test cases, set up test data, reported on tests, and managed defects.
- Gather requirements directly from clients and business analyst through meetings/discussions.
- Created performance test scripts to validate application performance under various loads.
- Used sniffing tools such as Wireshark and Fiddler to intercept data as it is transmitted over a network and decode the data into a readable format.
- Created correlation rules in Vugen and ease the process of Script Preparation.
- Execution of Load runner scripts using HP Performance center by defining Ramp-up and Ramp-down of virtual users to generate the results of real-time scenario.
- Used monitoring tools such as Dynatrace and Performance monitor for managing the availability and performance of software applications.
- Extensive hands-on experience in Vugen, SOA Test, JMeter and Blaze meter.
- Identified performance bottlenecks at code and database levels, facilitating targeted optimizations.
- Planning and co-ordination of test data, issue resolution and escalation, Test risk management status/metrics reporting.
- Assisted software developers in tracking reported bugs using defect tracking tools ALM and CA Agile Central, enhancing issue resolution.
- Worked closely with developers and system engineers to identify technical problems.
- Generated detailed performance analysis and defect reports for project stakeholders.
- Analyzed Heap behavior, throughputs and pauses in garbage collections as well as tracking down memory leaks while executing the longevity tests.
- Perform reviews with clients to ensure all requirements are tested properly.
- Hands-on Experience with Drupal a Content Management System and developed the framework to collect stats and generate health reports.
- Extensively used Dynatrace and determined the layer with bottleneck during the test.
- Developed Automation scripts with Selenium and scheduled these scripts to run with no human intervention.
- Created dashboards with CMS to automate report generation and distribution to stakeholders.
- Worked under agile environment and delivered the artifacts in time for all sprints. Helped Team on identifying performance requirements from product backlogs and used CA Agile Central to track the requirements.
- Experience in streamlining the process of Effort Estimation, Waiver Creation and Performance Risk Assessments.
- Experience with Cloud environments like Azure and Salesforce and designing performance scenarios as per the NFRs.
- Analyzing various graphs for the client side and server-side metrics like Transaction Response Time, Hits per second graph, Pages download per second, Throughput, Memory & CPU utilization, DB reports and trace logs.
- Coordinated tasks through Windows Task Scheduler for internal framework maintenance.
- Familiar with Information Security Management Systems and Certified ISMS 27001:2013 professional.
- Well trained in Agile scrum concepts and practiced agile in latest projects.
- Created Test Plan, executed load tests and generated Dashboard reports from JMeter.
- CareFirst BlueCross BlueShield is a health insurance provider serving 3.5 million individuals and groups in Maryland and the Washington metropolitan area. It has Three important business domains that IT teams works on Provider, Member, Broker and Employer portal.
- Environment: LoadRunner, Controller, Wily Introscope, Team Quest, Dynatrace, Oracle, MS SQL Server, F5 Load Balancer, JAVA, .NET, ALM, Web, Windows 2000/XP, AIX, Linux, Windows Server 2012 R2
Performance Engineer
Compest Solutions/Home Depot-GA
03.2011 - 10.2012
- Performed load, stress, scalability, and endurance testing for diverse client products.
- Developed test harness using Virtual User Generator in Single and Multi protocols (HTTP/HTML, RMI, Citrix, Web Services, Dual Web/Winsock and Windows Sockets).
- Customized LoadRunner scripts in C language like String manipulation and using C libraries for the LoadRunner Scripts.
- Used extensive correlation to improvise the existing LoadRunner scripts.
- Parameterized test scripts to send realistic data to the server and avoid data caching.
- Set up server metrics for Sitescope and add to the scenarios.
- Monitor performance using windows performance monitors, HP RUM and LoadRunner monitors.
- Analyzed Tests using Summary Analysis, Average Transaction Response Time, Throughput, Windows Resource, Network delay and HTTP Codes.
- Experience in writing SQL queries to gather test data to run different performance tests.
- Collaborated with development team to identify bottlenecks and implement changes in performance scripts, optimizing system performance.
- Facilitated MIPS data collection with Mainframe Team to support TSR operations.
- Utilized tools like SiteScope, NMON, Wily Introscope and Team Quest for monitoring server performance.
- Used VMware to create virtual machines to run different consoles for screen capture.
- Monitored different graphs like transaction response time and analyzed server performance status, hits per second, throughput, windows resources and database server resources etc.
- Mentored offshore resources, delivering training that improved team performance and testing capabilities.
- Provided onshore project updates to offshore engineers, facilitating communication and enhancing testing efficiency.
- Conducted meetings with developers, application team, business team to analyze the defects evaluate the test executions.
- The Home Depot, Inc., is an American multinational home improvement retail corporation that sells tools, construction products, appliances, and services, including fuel and transportation rentals. Home Depot is the largest home improvement retailer in the United States.
- Environment: LoadRunner, Performance Center, SiteScope, Oracle, MS SQL Server, Wily Introscope, Weblogic, F5 Load Balancer, JAVA, .NET, Quality Center, Web, Windows 2000/XP, AIX
- Environment: LoadRunner, Performance Center, SiteScope, Oracle, MS SQL Server, Wily Introscope, Weblogic, F5 Load Balancer, JAVA, .NET, Quality Center, Web, Windows 2000/XP, AIX
Education
Master’s - Biotechnology and Entrepreneurship
NYU- POLY
New York, NY01-2010
Bachelor’s - Biotechnology
Anna University
Chennai01-2007
Skills
- CI/CD pipelines
- Infrastructure as code
- DevSecOps integration
- Content delivery optimization
- Application deployment
- Infrastructure automation
- Configuration management
- Cloud services management
- Application monitoring
- Performance tuning
- Incident management
- Release management
- Application scaling
- Network monitoring
- Network performance
- Akamai CDN optimization
- Cross-functional collaboration
Certification
- Splunk Fundamentals Part 1
- New Relic APM Fundamentals
- Certified Scrum master
- Certified SAFe 5 Agilist
- AWS Certified Cloud Practitioner
- Certified SAFe 5 DevOps Practitioner
Timeline
Sr DevOps Engineer
CMS/EPS – Sparksoft MD
03.2023 - Current
Performance Test Architect & Site Reliability Engineer
CMS/IDM C-HIT MD
07.2019 - 03.2023
Sr Performance Engineer
Compest Solutions/Anthem BCBS- OH
01.2019 - 07.2019
Performance Engineer
Compest Solutions/CareFirst BCBS- MD
10.2012 - 01.2019
Performance Engineer
Compest Solutions/Home Depot-GA
03.2011 - 10.2012
Master’s - Biotechnology and Entrepreneurship
NYU- POLY
Bachelor’s - Biotechnology
Anna University