Jan 2017 – Nov 2018 · 1 yr 10 mos

• Working on Vmware's Cross Cloud initiative. https://www.vmware.com/radius/cross-cloud-introduction/
• Handling the discovery and management of resources (compute/network/storage) across clouds. The work for discovery of resources in public clouds like AWS/Azure is open source.
• https://github.com/vmware/photon-model . github id: sdiwan
• Working on Asynchronous REST micro services built on the highly scale and distributed computing platform Xenon. https://github.com/vmware/xenon
• Responsible for picking up and delivering end to end features while mentoring/overlooking a team of engineers.
• Responsible for keeping services in production up and running 24*7. Participates in a Pagerduty rotation with the rest of the engineering Team.
• Involved in ongoing triaging of production issues, root causes analyses, producing bug fixes and proposals for design changes to improve service resiliency and meet SLAs for uptime and latency.

Jun 2012 – Jan 2017 · 4 yrs 7 mos

• Java backend developer in the Palo Alto R&D team. Working with technologies like Java, Asynchornous APIs, AWS, Spring, Hibernate, REST, JSON, GWT.
• Extensive experience of working in a fast-paced Agile environment with daily stand-ups.
• Responsible for end-to-end delivery of new code features, maintaining current code and triaging and fixing bugs.
• Responsible for efficient solution designing by effective use of Design Patterns.

Apr 2011 – Jun 2012 · 1 yr 2 mos

• Working as a software developer in the Ad Server and Publishing team at Yahoo!
• Designed and developed a highly scalable service in Java /C++interfacing with an in-house middleware for use in Yahoo’s next generation Ad Server.
• Did performance engineering and memory optimization for low latency and high scalability.
• Developed a Hadoop based script for analysis of large scale production data .
• Developed a User Interface using YUI (Yahoo User Interface) and PHP to visualize output of Hadoop scripts.

Jul 2010 – Apr 2011 · 9 mos

• Designed and developed inter-system communication using routing and Apache Camel. Created [Java , Apache Camel]
• business centric reports using an in-house tool interacting with Oracle using Erlang.

Jan 2010 – May 2010 · 4 mos

• In my Masters I followed a systems specific Specialization wherein I signed up for systems related coursework and delivered the required projects which were based on C/OS related concepts like multithreading, schedulers, inter-process communication, synchronization, asynchronous communication, file concepts, system calls etc.
• One of my semester long projects revolved around creating a virtual machine management software fit for deployment in current large scale data centers using Xen virtualization, SNMP and OSISoft's Pi Server.
• My master's project revolved in creating distributed storage targets for virtual machine instances in the Eucalyptus Cloud Computing platform written in C/C++ and Java.

Aug 2005 – Jun 2008 · 2 yrs 10 mos

• Enhanced the pharmacy claim adjudication system to adhere to Coordination of Benefits in Oracle PL/SQL,VB.
• Re-architected the inter active voice response system (IVR) for Aetna using Spring MVC
• Integrated an intelligent hand-held with an existing inventory management web application in J2EE, Struts
• Worked onsite from Bluebell, PA for Aetna's Plan Sponsor application to use web services.