Harry Raaymakers

Senior Developer at JERSEY TELECOM (UK) LIMITED
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Contact Information
Location
Greater Melbourne Area, AU
Languages
  • Dutch Native or bilingual proficiency
  • English Full professional proficiency

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Experience

    • United Kingdom
    • Telecommunications
    • 1 - 100 Employee
    • Senior Developer
      • Dec 2013 - Present

    • Australia
    • Telecommunications
    • Senior Development Engineer
      • Oct 1999 - Jul 2013

      Looked after the corporate internet provisioning and usage billing and reporting systems. This was based on Cisco Netflow, SNMP and a bit of RADIUS on a Python and C code base. There were also user web interfaces into this. The processing of all the customer IP connections produced large volumes of data that was always a challenge to process and store. Made various changes and performance improvements over the years, including adding distributed processing into the mix, porting from Sparc to i386, and multi-threading. Recent projects have been Java web services oriented and an excursion into android programming.

    • Consultant
      • May 1996 - Oct 1999

      Consulting all sorts. This was a varied role which included Customer pre-sales, site installations of UNIX systems, NT systems, Routers, Firewalls, VPN's, Software and Security audits. There was some software development, including an e-commerce web site of questionable repute. There was also an ISP in the form of Planet Internet for which I administered the systems, routers, web hostings, DNS, email and developed software and provided support as needed. Consulting all sorts. This was a varied role which included Customer pre-sales, site installations of UNIX systems, NT systems, Routers, Firewalls, VPN's, Software and Security audits. There was some software development, including an e-commerce web site of questionable repute. There was also an ISP in the form of Planet Internet for which I administered the systems, routers, web hostings, DNS, email and developed software and provided support as needed.

    • Australia
    • Higher Education
    • 1 - 100 Employee
    • Sysadmin/Network Engineer/Dev
      • Mar 1990 - May 1996

      Started work just at the time the Universities were getting connected to the Internet. The University was also installing new fiber around the campus. I managed the TCP/IP configurations and UNIX systems and network services for the University. Designed an early form of dynamic web by embedding code into web pages which got a dedicated chapter in a published book. Provided student dialup access with kerberos authentication into student record system with jailed curses based Internet based applications. Developed some pub domain utilities such as a search engine and text to html converter.

    • Spain
    • Computer Hardware Manufacturing
    • 1 - 100 Employee
    • System Administrator AOS/VS
      • Mar 1989 - Jan 1990

    • Australia
    • Public Safety
    • 700 & Above Employee
    • System Administrator AOS/VS
      • Mar 1988 - Mar 1989

Education

  • Swinburne inst of Tech
    Bachelor of Applied Science (B.A.Sc.), Computer Science Instrumental science
    1986 - 1989

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