Sep 2020 – May 2021 · 8 mos · Legato Services

• As Technical Lead, I led a team of engineers in the performance and migration of AWS cloud-based solutions from client infrastructure.
• Provided technical leadership and guidance in agile software development practices and release management.
• Collaborated with distributed teams to design and develop frameworks, solution accelerators, and proofs of concept.
• Designed and developed high availability applications on the cloud, adhering to disaster recovery and availability best practices.

Jul 2019 – Sep 2020 · 1 yr 2 mos

• Engaged in performance engineering activities for CRM solutions with Salesforce ISV partners.
• Ensured performance, scalability, and reliability of Vlocity Digital Commerce RESTful Web APIs.
• Conducted performance testing and scaling across all business tiers and failure scenarios.
• Provided expertise in caching concurrency and cache refresh processes.
• Assisted customers in managing cache delta refresh and recovery time objectives.

Aug 2017 – Jul 2019 · 1 yr 11 mos · Bengaluru Area, India

• Guiding customers & internal teams with developments on Performance, Stability and Reliability of Cloud migration.
• Designing and implementing PaaS services while developing user-focused solutions for IT Infrastructure technologies.
• Conducting lab testing to validate Oracle Cloud features to acquire feasibility and performance insights.
• Liaising with the Oracle Cloud Infrastructure community and adopting best practices to devise high-performance carrier grade cloud.
• Planning and executing pilot projects and POCs to facilitate the validity check of Oracle solutions.
• Evaluating existing infrastructure (including PaaS and IaaS) to identify areas of disruptive innovation.
• Developing workflows for automation tools within on/off-premise cloud delivery models.
• Executing cloud product performance benchmarks to render “as-a-service”-functions.
• Participating in the strategy & design for the continuous delivery framework/tools as infrastructure CI/CD pipelines SME.
• Developing and operating an enterprise scale multi-tenant container management service on Kubernetes, Docker, and Kafka.

Nov 2015 – Aug 2017 · 1 yr 9 mos · Bengaluru Area, India

• Enhanced end-user performance by 30% & reduced substantial costs from $1,50,000 to $1000 YoY.
• Highlighted improvement areas by identifying memory leaks via Jprofiler & Eclipse MAT and providing snap shots of memory object.
• Conducted RCA of frequent crashing of e-Commerce website (2M users) to identify issues in Thread Concurrency, Heap Utilization and legacy cURL library.
• Enhanced overall scalability by resolving errors by changing heap size and other jvm properties.
• Fine-tuned the response times by configuring EHCache for application caching.
• Engineered Scalability Test for reset API calls in authentication components by using SAML and OAuth2 to bolster product reliability for Authentication through performance benchmarks.
• Identified Caching issue for app with timeout exception troubleshooting;. triaged the same issue in Prod and configured right config for app cache

May 2015 – Oct 2015 · 5 mos · Bangalore

• Appointed POC for new services requiring performance and/or capacity evaluation.
• Designed performance engineering framework for distributed & parallel computing and accounting systems
• o Implemented performance tuning and optimization by analyzing AWR data, heap dumps and thread dumps.
• Enabled automation of multiple manual tasks in software performance application lifecycle.
• Identified memory leaks using profiling tools like like JFR (java Flight Recorder), Jprofiler, EclipseMAT, VisualVM, and Jconsole.
• Highlighted code improvement areas and attained overall scalability by resolving memory errors by changing jvm properties.
• Ensure business stakeholders about the stability and performance of the application well under SLA.
• Monitored test plan of webservers (using Dynatrace) and indicated memory thrashing.

May 2013 – Apr 2015 · 1 yr 11 mos · Lufthansa Systems - Bangalore, Frankfurt, Zurich · Hybrid

• Comprehensive experience in Web services Performance,SOA Middleware and Capacity Management.
• Achieved 52% upgrade in Middleware performance by implementing WebLogic tuning to fix scalability issues of application servers.
• Led NFR efforts from client locations to offshore delivery and completed migration within stipulated time.
• Presented technical deep dives on applications and identify the appropriate solution to meet customers’ needs solutions.
• Participate in and guide solution-specific subject matter expert teams and create white papers, best practices, tuning guides.
• Rolled-out a new platform as part of Airline industry Software Solution Replacing Legacy System based on J2EE
• o Provided updated tools, component, OS and other applications to help customer upgrade their legacy non-supportive, out of license software and reduced <25% of overall budget.
• SOA Architecture with Oracle Weblogic, TIBCO products like EMS, BW, JMS implementations, Enterprise File Transfers from GlobalScapeEFT and Webservices from Actional Aurea.
• Resolved issues with inconsistent user experience with 11.2 seconds and database lock contentions.
• Fine-tuned Oracle Database using AWR thus pointing out issues of Load Profile, SQL & Top 5 Timed Waits.
• Developed Performance Test Framework via Java, XML based test data, dependency injection from Spring Framework.

Sep 2010 – May 2013 · 2 yrs 8 mos · Bangalore Area, India

• Harnessed technical aspects of performance testing which includes load, stress, performance and volume testing for better capacity management of applications and servers.
• Established performance engineering framework for distributed/parallel computing systems, accounting for system components including application software, operating system, and underlying computing & communication hardware.
• Performed load/stress/endurance tests and presented performance test strategy to stakeholders to obtain sign-off on test plans.
• Developed dynamic test scripts & design scenarios to simulate complicated real-world workload.
• Designed LoadRunner scripts in VuGen via Web (HTTP/HTML), SOAP and Rest web services.
• Executed: Baseline Test, 2 Consecutive Peak 1hr Load Test, multiple E2E scenarios in ALM PC controller, Endurance Test, Stress Test, Module Optimization Testing via the Load Runner Controller.
• Monitored the CPU usage, GC, Threads, Heap of the JVM App server via Visual VM.

Feb 2008 – Sep 2010 · 2 yrs 7 mos

• Delivered complete Project Plan with total supporting data, which included the Status Reports, Issues Log, Performance Testing Matrix, Detailed Testing Reports to both Executive Management & Senior Management.

Jun 2007 – Feb 2008 · 8 mos

• Associated in building a technical forum for a product in java.