Curriculum Vitae Paul de Weerd (45) |
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Summary
UNIX and networking expert with more than 20 years of experience in a wide range of environments. From consumer industry and b2b internet service providers, to large scale internet services and low latency financial services. Although performing well solo, I prefer to work in a team to solve challenges in IT where automation, preferably with open source tools, is key. I love working with technology but even more so with people.
Employment history
2013 - today: UNIX engineer - RIPE NCC, Amsterdam
I am currently working for the RIPE NCC in the Global Information Infrastructure (GII) team. Our main responsibilities are the K-root DNS server, authoritative DNS services and the back-end infrastructure for RIPE Atlas and RIPEstat.
My work is focused on the operational wellbeing of our Hadoop clusters that process and store Atlas and RIS data:
- Building a brand new Hadoop cluster in a netbooting environment
- Writing ansible roles to configure the environment
- Helping with the initial data migration from our old cluster
- Planning and executing software upgrades
- Planning and rolling out capacity expansions, growing our cluster from .5 to 3 petabytes
- Design, build and implement a disaster recovery solution for our biggest data sets
- Working with our developers to find and fix problems in our software
2019 - today: Manager GII - RIPE NCC, Amsterdam
In addition to my technical role, I also stepped up as team lead, working with or replacing the team manager when the need arose. In 2019, this got a more permanent form when I was formally given the role of manager of the GII team.
2009 - 2013: UNIX engineer - IMC Trading B.V., Amsterdam
I was a member of the Trading Solutions team. This team is responsible for the infrastructure used by our traders on the different exchanges (Euronext, London Stock Exchange, Deutsche Börse, etc), including the UNIX and Windows machines, network connections and hardware and auxiliary equipment. My work was focused on the UNIX machines running our own proprietary and third party trading software.
I was responsible for the following deliverables:
- Built an environment for power management and monitoring of our server farm, allowing a reduction in rack space utilization at three sites
- Organized a workshop unix scripting for colleagues
- Mentored a junior colleague that joined the team
- Designed and implemented a logging infrastructure to store data for the global IMC network
- Migrated approximately one hundred machines to a new datacenter
- Improved timekeeping precision 3 orders of magnitude (sub-ms range to sub-µs range)
- Built an environment for network traffic analysis, analyzing several TB per day
2006 - 2008: Site Reliability Engineer - Google GmbH, Zurich, Switzerland
I worked for Google at the European engineering headquarters in Zurich, Switzerland. I was part of Site Reliability Engineering (SRE), whose responsibility it is to keep the various Google properties available to our users; our team's focus was on Google Maps. We were responsible for:
- Upgrading production software to launch new features (e.g. launched street view)
- Updating live indexes to newer versions (e.g. launched http://maps.google.nl/)
- Capacity planning and management (load testing, acquiring extra resources, moving services to new data centers, etc. to handle a 300% increase in load over 2 years)
- Monitoring our services 24/7 and responding within tight SLAs (on-call)
- Interviewing more than one hundred candidates for the team
2004 - 2006: UNIX and Network engineer - BIT BV, Ede
2003 - 2004: UNIX engineer - Versatel, Amsterdam
1998 - 2003: Systems engineer - X-tern Automatiseringsdiensten / ICT Automatisering, Almere
Ancillary activities
2006 - today: Netwerkvereniging ColoClue
I joined ColoClue's networking committee in 2006 and worked on the following projects since:
- Design IPv6 numbering plan for our own /32 allocation and migrate to it
- Migrate members from 2 /24's of PI space to a /21 PA space
- Regular network and UNIX maintenance and hardware upgrades for the association's infrastructure
In February 2010, I joined the board moving to the position of treasurer later that same year. The board is responsible for the overall wellbeing of the association and through regular meetings we govern the operational and financial health of ColoClue. We organize general assembly meetings twice a year, a barbecue and the occasional talk for our members and help various committees perform their tasks. As treasurer I was responsible for collecting contribution from our members, paying invoices, setting (and keeping) the annual budget of around €80.000, writing the yearly financial report and keeping track of taxes. In early 2014, I moved to the position of president.
2015 - today: Stichting EuroBSDCon
In 2015 I was asked to join the board of the EuroBSDCon foundation as president of the board. The foundation provides a legal entity for our local organizing team to refer to and handles the financial part of the yearly recurring EuroBSDCon conference, which is organized every year somewhere in Europe. As president of the board, I chair our monthly meetings and handle various tasks that need to happen in The Netherlands.
Experience
Hardware
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Operating Systems
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Courses
- Puppet Fundamentals
- Introduction to Financial Markets
- Configuring Juniper Networks Routers (CJNR-M)
- HP-UX System and Network Administration I and II
- UNIX Fundamentals
Hobbies
I like to read, both fiction and technical or scientific books and articles. I'm also active in the OpenBSD community helping other users on discussion forums and mailing lists, hosting and editing a community website and occasionally doing some development work.
References
References available on request.
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