Abraham Amirtharaj work email
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- S/W Architecture, write S/W Specs, Design and Develop S/W- Experience on large scale Distributed-Fault tolerant Systems (developing Infrastructure), Distributed processing, Client-Server, Middleware technologies, Network Programming (TCP/IP, Sockets) and Parallel & Concurrent/Multi-threaded programming. - Performance Tuning, Object Oriented Programming, Operating systems internals, File System, High Availability. - Developed Parallel File System which runs on cluster- Experience in Medical Devices/Health Care industry.- Experience in full product life-cycle which includes analysis, design, development and maintenance of both Systems and Application software.- REST API development- Expertise writing S/W to interface with medical devices over TCP/IP Sockets and RS232- Interface with implantable Neurostimulator- Can take on tasks and accomplish it independently as well as work in a team environment. - Sincere, hardworking, flexible and result oriented. “Can do – will do” attitude.Specialties: Operating Systems: UNIX (Solaris, HP-UX and AIX), Linux, Windows, Windows MobileLanguages: C++, VC++, C, JAVA, SCALA, C#, Pascal, JavaScript, HTML, OCCAM, LISPRDBMS: Sybase, Informix, SQL ServerMiddleware: AKKA, COM, COM+, CORBA (VisiBroker), Sybase Middleware, Servlets, XML, SOAPMessaging: Apache KafkaKubernetes, DockerTools/Servers: IIS, Netscape Web server, Netscape LDAP Directory Server, Active Directory, Rational Requisite Pro, Visual Source Safe, Clear Case, GitHub, Maven, SBT, JMeter
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Principal EngineerNutanixCupertino, Ca, Us -
Principal EngineerSpringpath Inc (Acquired By Cisco) Nov 2016 - PresentAm part of the System Management group contributing to the development of hyperconvergence software, turning standard servers of choice into a single pool of compute and storage resources. Presently working in the areas of Single Signon [Authentication, Authorization, Auditing], REST APIs, iSCSI System management layer, Kubernetes CSI etc.
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OwnerCherith Technologies Inc Apr 2002 - Present
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Consultant, Tech LeadEbay [Consultant] May 2011 - Oct 2016San Jose, Ca, UsTech Lead, Point man, hands-on developer at EBay working on EBay's B2C eCommerce Software which makes use of Ebay's trading APIs (and SOAP calls) and enables business Sellers to maintain inventory of items on desktop and also list items and track it on E-Bay's marketplace.Played a developer role in EBay’s Merchant Integration Platform project – a Cloud based Webservice which allowed small businesses to submit product information and quantity in csv, xml format which the service transformed and listed in EBay’s market place using eBay's http based trading APIs and generated order reports of transaction.Played a developer role in EBay's Promotions and Deal project which allows offering promotions and deals inverticals like fashion, toys etc. t -
Principal S/W EngineerSpinal Modulation (Acquired By St. Jude Medical) Mar 2008 - Apr 2011Part of a team which developed a new way to manage chronic pain through DRG stimulation. Part of the Software team which developed the Programmer Software which enabled Physicians and Patients to configure and set stimulation parameters on the implantable Neurostimulator to manage therapy. The Programmer S/W was targeted for PDA (Pocket PC running Windows Mobile).
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Consultant, Individual ContributorVarian Medical Systems 2002 - Feb 2008Palo Alto, Ca, Us- Architect/Design/Develop S/W which interfaces with Medical Devices.- Architect, design and develop portions of Varian Medical System’ Treatment Delivery and Record & Verify software to interact with medical devices [Linear Accelerators] manufactured by Siemens, Elekta etc. - Develop Protocol for communication between Treatment Delivery S/W and Medical devices [Linear Accelerator] manufactured by third parties. Interface to devices through RS232 or Ethernet.- Develop Emulators to simulate Medical Devices [Linear Accelerator]- DICOM 3.0 Format and Protocol implementation for Radiation Oncology. S/W used DICOM to interface with RIS to obtain patient treatment plan information and store patient treatment record. -
Staff EngineerWebmd (Healtheon) 1998 - 2002UsHealthcare S/W Infrastructure for patient and workflow management- Member of Foundation Technology team which developed the core services (Infrastructure) of WebMD’s distributed environment using CORBA on Solaris and COM on Win2K platform. - Architect, Design and Develop Single Signon (SSO) Infrastructure for WebMD on Win2K Platform that had over 2 million registered users. The SSO seamlessly integrated portal subsystems developed on Unix/CORBA, Unix/JAVA and Win2K/COM platforms that could potentially reside on different domains- Redesign Healtheon's Database CORBA service (DBS) to be more scalable by allowing for multiple DBSs to handle data and login requests as a part of performance tuning effort. Rewrote the database connection management code to redirect read only requests to the secondary Informix server (HDR configuration) to improve resource utilization. -
Staff EngineerSybase Inc. Jun 1996 - Jun 1998- Application Server, Middleware S/W development- HTTP Server: Implement thread pooling and Keep Alive (persistent connection) feature of HTTP Server- Application Server (ORB - Object Request Broker) kernel development- Performance tuning of the multi-threaded kernel of Sybase's Application Server - Jaguar- Development, Performance Tuning and Sustaining of Sybase Connectivity (Middleware) Products. Client Server, Multi-threaded programming.- Architect, Design and Develop Synchronous and Asynchronous Exception Handling in the Multi Processor version of Open Server (MPOS). The Open Server is a set of APIs that enables users to write a custom built server. The MPOS is written on a multi-threaded environment on Solaris Platform.- Sustain Open Server and Open Client - Sybase middleware products. Open Client is an API which provides client access to Sybase SQL Server. Sustained the Transfer Control Layer of Sybase middleware products.
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Senior S/W Engineer, ConsultantHewlett Packard Jun 1991 - Jun 1996Houston, Texas, Us- High Availability, Unix Commands and Utilities development- Highly Available Unix Systems: Worked on Hewlett Packard's Highly Available System product ServiceGuard which protects applications from failure of CPU, disk, network components etc. It runs on a cluster of HP s800s and during the failure of any component either makes use of the redundant component or switches the application to a fully functional system in a transparent manner. Was involved in the development and testing of ServiceGuard. - V.4 File System layout changes to HP-UX (Hewlett Packard's Unix) commands.- IO Convergence work (Uniform IO access on HP 9000 - s700 and s800) for HP-UX.- Unix Commands enhancements and maintenance: Maintenance, Bug fixing, Testing and Patch release of HP-UX commands fsck cron, at, syslogd, envd, getty, UUCP, cu, at, tar etc.- Implement caching mechanism for fsck to improve its performance in HP-UX. -
Member Technical StaffCenter For Development Of Advanced Computing Jul 1989 - Jul 1991- Member of a team of Computer Scientists and Engineers who designed and developed India's first Parallel Super Computer: PARAM. Parallel Computing, Client Server, Distributed Processing and Concurrent/Multi-threaded programming. - Parallel File System, Kernel: Design and Develop Parallel File System with Unix like system calls for a 64 Processor, Distributed Memory, MIMD, Message passing Parallel computer (PARAM) with multiple IO nodes and multiple disks to provide concurrent access to the File System in a Parallel Processing environment. System calls were provided for making formatted and unformatted I/O, Synchronous and Asynchronous IO (to overlap computation and IO). Wrote the Request Server that handles service requests from remote nodes, Name Server that handles directory information, Page Manager that handles the file inode maintenance and the IO Manager that manages Buffer Caching and disk IO. - Mkfs: Wrote the Make File System utility for the Parallel File System.
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Assistant Executive EngineerIndian Telephone Industries Aug 1987 - Jul 1989- Computer Networks and Telephone Networks- Monitor: Wrote a monitor to disassemble code and modify memory locations in the CPU card of Data Switch for the Defense Computer Network. - Administrative Processor Software for Data Switch: Wrote the Administrator Processor (PC) software of Data Switch for the Defense Computer Network to enable the user to monitor and maintain the status of the network. - Administrative Processor Software for Telephone Exchange: Wrote the Administrative Processor software for the Trunk Exchange to configure it and monitor it.
Abraham Amirtharaj Skills
Abraham Amirtharaj Education Details
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Indian Institute Of Science (Iisc)Computer Science And Engineering -
LoyolaPhysics
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Don Bosco, Perambur, ChennaiHigh School/Secondary Certificate Programs
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Kendriya Vidyalaya10Th Grade
Frequently Asked Questions about Abraham Amirtharaj
What company does Abraham Amirtharaj work for?
Abraham Amirtharaj works for Nutanix
What is Abraham Amirtharaj's role at the current company?
Abraham Amirtharaj's current role is Principal Engineer.
What is Abraham Amirtharaj's email address?
Abraham Amirtharaj's email address is aa****@****inc.com
What is Abraham Amirtharaj's direct phone number?
Abraham Amirtharaj's direct phone number is +140838*****
What schools did Abraham Amirtharaj attend?
Abraham Amirtharaj attended Indian Institute Of Science (Iisc), Loyola, Don Bosco, Perambur, Chennai, Kendriya Vidyalaya.
What skills is Abraham Amirtharaj known for?
Abraham Amirtharaj has skills like Unix, Distributed Systems, Linux, C++, Tcp/ip, Medical Devices, Javascript, Solaris, Java, C#, Mobile Applications, Dicom.
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