Imej profil rcherselman
Ahli semenjak 26 Januari 2016
0 Cadangan


Dalam Talian Luar Talian
I'm a hard-working and well-organised individual with 12 years full-time experience in Systems Administration (Windows & Linux), Network Administration and Development. Also interested in Data Entry & Admin, Content Writing, Copy Typing, Proofreading, Editing and Transcription work.
$30 USD/hr
14 ulasan
  • 100%Kerja Diselesai
  • 100%Mengikut Bajet
  • 100%Tepat Pada Masa
  • 43%Kadar Ulang Upah


Ulasan Terkini


System Administrator

Jan 2013 - Jan 2014 (1 year)

Telecommute (work-from-home). Amazon AWS: EC2; S3; VPC; EBS; Route53 etc. Build and deploy email-integrated ticketing system: Best Practical's Request Tracker. Google Apps; Mandrill; Aegir+drush; git+gitolite+gitweb; varnish HTTP accelerator; Rsyslog+Adiscon LogAnalyser. Deploy OpenVPN Access Server with VPC NAT. Continuous Integration: Jenkins. Project management: WorkflowMax . Scrum methodology. Backups & disaster recovery: duplicity; rsync; Amazon S3. Drupal development. Technical writing.

System Developer

Aug 2011 - Jul 2012 (11 months)

System Administration: 20 Linux servers (Ubuntu; CentOS); 10 Windows servers. Backend development: Java; Tomcat; SOAP; PHP. Frontend development: JavaScript; HTML; CSS. Database administration: MySQL; MS-SQL; Oracle. Firewall & Networking Administration: GTA GB-OS; HP ProCurve switches; VLANs; VPNs. Payment Card Industry (PCI) compliance. Virtualisation: Citrix Xen Server; Citrix XenCenter. LDAP; SAMBA; Splunk; IntelliPool Network Monitor; Joomla; RT; Sawmill; Spiceworks; SVN etc.

System Administrator

May 2007 - Aug 2010 (3 years)

Administration of various platforms and services related to XDSL's product offering: web hosting; email\nhosting; co-location hosting; VPSs; VPNs; fixed-line, wireless & 3G Internet access; managed firewalls\n(IPCop, Mikrotik); VoIP. Database administration: PostgreSQL; MySQL. Monitoring systems: Nagios; Groundwork Monitor; Hobbit; Network Weathermap. Development of "XAPI", XDSL's online portal and Application Programming Interface: PHP, SOAP, Perl, Bash.

Operations Manager

Dec 2005 - Sep 2006 (9 months)

Manage the Operations department: 2 System Administrators & 2 Developers. Project management. Product development.

System Administrator

Oct 2001 - Nov 2005 (4 years)

Administration and development of various business-critical systems in a fast-paced commercial ISP environment. Oversight and execution of automated month-end billing processes. Timely resolution of requests and fault reports on an issue tracking system. Change- and revision control. Supply chain management. Advising management with regards to best practices, industry trends, capacity planning etc.

Technical Support Consultant

Jul 2001 - Sep 2001 (2 months)

First-line telephonic and email technical support of end-users, franchised branches and resellers. Requests logging on helpdesk ticketing system. Liaising with Operations department. Escalation of requests and follow-up to completion. Attending to sales calls, signing up new clients and activating new services. Technical writing (documentation).

Local Area Network Administrator

Sep 1998 - Apr 1999 (7 months)

Administer Windows NT 4 domain (PDC, BDC and Workstations). Implement backup plan and security policies. Y2K-problem compliancy. Manage software licensing. Network planning, troubleshooting and optimisation.


Microsoft Certified Systems Engineer + Internet (MCSE+I) (2001) (CBT Systems)

Microsoft Certified Systems Engineers with a specialty in the Internet are required to pass seven operating system exams and two elective exams that provide a valid and reliable measure of technical proficiency and expertise. These exams are developed with the input of professionals in the industry and reflect how Microsoft products are used in organizations throughout the world.


  • US English Level 1


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