Rayson Ho Email & Phone Number

System Programming, Cloud infrastructure design

Listed skills include Shell Scripting, Perl, Solaris, Linux, and 16 others.

• Software Developer

  Various Companies

  May 2000 - Present - Toronto, Canada Area

  Cloud Systems:OpenStack Administrator (Nova, Neutron, Keystone)Amazon EC2, ELB / autoscaling groups, RDB, DynamoDB, VPC, S3, Glacier, RightScaleBig Data Systems:Hadoop, Spark, HDFS.Commercial products developed:Batch system, optimizing compiler and runtime libraries, database engine (DBMS), Counterparty Credit Risk Systems, Cloud Provisioning Systems, HPC StorageOpen source contributions:- Sun Grid Engine (porting, SGE-SSH integration, SGE Beowulf integration, and DTrace integration)- Open Grid Scheduler- MIT StarCluster- Boto (Python AWS SDK)- Open64 Compiler (OpenSolaris port)- Mono CLR (atomic instructions & MIPS-EL port)- Google TCMalloc (atomic instructions & other enhancements)- Open MPI (thread binding)- PostgreSQL (scalability and performance enhancement)- OpenSolaris (initial investigation on the MIPS port of the kernel)Application Devlopment and System Programming on:- UNIX: AIX, BSDs (BSDi, FreeBSD, NetBSD, OpenBSD), HP-UX, Linux (on x86/x64, CELL, PPC, IA-64, SPARC, MIPS, Alpha, zLinux), IRIX, Mac OS X, Solaris, SunOS 4, Super-UX (NEC SX), Tru64, UNICOS (Cray), UXP/V (Fujitsu VPP)- OpenVMS: DCL, VMSCluster- i5/OS (mainly under PASE)- Windows: system programming- z/OS (mainly under MVS-OE)Database systems:- Proprietary: DB2 (pureXML & ETL), Oracle DB, Netezza- Open source: Apache Derby, MySQL (InnoDB, NDB/Cluster), PostgreSQLProgramming languages:- C/C++, assembly language, Go, Fortran, Java, Pascal, Perl, Python, shell scripting, awk/sedUnix Kernel:- AIX (kernel extensions, kernel debugger), Solaris, Linux (kernel module programming)Performance tools:- profilers: gprof, tprof, VTune, OProfile, perf- debugging utilities: ktrace, strace/ltrace, truss/sotruss, DTrace, gdb, dbxOther skills:Apache httpd, MediaWiki, Tivoli, OpenMP, MPI, Cuda, OpenCL, PThreads, TruClusterMisc:SharePoint Operations, Change Data Capture (DataMirror), IBM Rational/GreenHat

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  University Of Toronto

  Computer Engineering