Marcel Quirijnen Sr. Software Developer - Open Technologies

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  Sr. Software Engineer - Data Minds team
  Jan 2022 - 04/12/2024 Vasion (former PrinterLogic), St. George, UT - 100% remote

  • As a team we make digital transformation attainable for businesses worldwide.
  • Check it out : Vasion
  • Used skills and tools :
    • PHP, Laravel, GoLang, MySQL, Stored Procedures, Docker, ReactJS, VueJS
    • Github, Bitbucket
  • Platforms :
    • Mac, Linux, Windows, Mobile
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  Sr. Web Developer - Research Web Group Department
  Jan 2021 - Dec 2021 Federal Reserve Bank of St. Louis - 100% remote

  • As a member of the FRED team, we combine data with a powerful mix of tools that help the user understand, interact with, display, and disseminate economic data time series from scores of national, international, public, and private sources.
  • Check it out : FRED
  • Used skills and tools :
    • PHP, JQuery, PostgreSQL
    • Gitlab, AWS
  • Platforms :
    • Windows 10, CentOS
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  Perl Web Developer V - Team Lead ESPA Endpoint Security Tool
  Apr 2019 - Nov 2020 Wells Fargo Network Security - 100% remote

  • Develop web-based endpoint security solutions focused on network authentication protocol 802.1x using tools like Perl, jQuery, AngularJS, ROSE database ORM and rpmbuild
  • Used skills and tools :
    • Perl, ROSE ORM, AngularJS, JQuery, MySQL, Jira, Crucible and Confluence
    • ActiveMQ, IBM MQSeries
    • rpmbuild, Subversion, Jenkins, uDeploy
  • Platforms :
    • Windows 10, Red Hat Enterprise 7
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  Full Stack Web Developer
  Mar 2018 - Mar 2019 PAM Transport - Tontitown, AR

  • Develop web-based tools to support the transportation industry with their training requirements, scheduling needs and carrier and load brokerage services.
  • Accomplishments :
    • Created a daily ‘Power Only’ Load Board, showing available loads per state, send out to subscribed carriers using the Elastic Email API, datamaps and VueJS (live link example)
  • Used skills and tools :
    • PHP, Laravel, Vue2, Jenkins
    • JQuery, NginX, GitLab, VirtualBox, Vagrant, MySQL, DB2
  • Platforms :
    • Windows 7 Pro, Ubuntu Linux, AS400
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  Educational months - Technology update
  Aug 2018 - Feb 2018 DevOps Staq, LLC - Yellville, AR

  • Took a 6 months sabbatical to re-educate/update my skillset on the complete DevOps & Deployment Technologies stack, as well as NodeJS, Python and Flask.
    Worked with Jenkins, Ansible, Docker and AWS CLI, CodeDeploy and CodePipeline.
    Samples covering these subjects are in my code repos at bitbucket.
  • Side projects :
    • Collect project ideas : RESTfull services using NodeJS and MongoDB
    • Creating an item store : RESTfull API using Flask, FlaskRestful and SQLAlchemy (basic CRUD)
    • Python solution to a Chess problem, including module tests
    • Java implementation to handle large data query results (50+ million records), including code testing and some CI/CD automation
  • Platforms :
    • Ubuntu Linux, AWS, Virtualbox
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  Sr. Developer - DevTools & Automation
  Mar 2016 - Jul 2017 Optanix, Inc. - Syracuse, NY - 100% remote

  • As a member of the Rapid Innovation Team, I contribute to the further development of the Optanix SaaS platform using todays open source tools and virtualization technologies in an agile development environment.
  • Used skills and tools :
    • Perl, PHP, C, Yii, Apache, ZeroMQ and RabbitMQ, Ruby, Python (Tornado framework)
    • Git/Bitbucket, Jenkins, LiquiBase, SonarQube, Zephyr
    • VirtualBox, Docker, Vagrant
  • Platforms :
    • Ubuntu Linux
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  PHP Back-end Developer, Independent Consultant
  Jan 2015 - Oct 2015 JMA Information Technology - Overland Park, KS - 100% remote

  • Creation of a network data portal for the national telecom Verizon Wireless.
  • Used skills and tools :
    • PHP, Twig, Slim, Idiorm, Nginx/Apache, Git/BitBucket, VMWare, MySQL with replication
  • Platforms :
    • Redhat Linux
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  PHP Web Developer May 2011 - Dec 2014 Arkansas Blue Cross & Blue Shield - Little Rock, AR - 80% remote

  • Develop a Paperless Workflow & Electronic Routing System (POWER) using PHP, MySQL, Apache, jQuery, SOAP/XML/JSON on AIX
  • The web-based application enhances the processing of healtcare claims for AR, LA, MS, NM, RI, OK and MO and ties in to various technologies across AR Blue Cross & Blue Shield (Microsoft services, IBM Mainframe, proprietary claims applications)
  • Used skills and tools :
    • PHP, MySQL, Subversion, Apache, SSL, JQuery, WSDL, SOAP, XML, JSON and shell scripting
  • Platforms :
    • IBM AIX Unix, Redhat Linux, Win XP
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  Sr. Open Technology Engineer Oct 2008 - May 2011 The Daily Record, Inc. - Little Rock, AR

  • Setup and maintain Linux based servers used as backbone systems for newspaper data
  • Host mail server and maintain spam filters
  • Virtualize servers with VirtualBox and/or VMware ESXi using OpenFiler as Network Storage Device
  • Upgrade current web applications to be Web 2.0 look & feel
  • Monitoring DMZ servers using MRTG, Snort IDS and AWstats reporting
  • Technical support for our users (Law offices, public legal services, clerks and collegues in AR and TN)
  • Used skills and tools :
    • PHP, MySQL, C, Apache, Subversion, Ajax using Dojo/YUI/DhtmlXSuite, Perl and shell scripting
    • Postfix, Dovecot, Horde groupware, SpamAssassin, Nagios, VirtualBox, ESXi, Bind9, tinyDNS, OpenFiler, RAID
  • Platforms :
    • Debian Linux, MAC OS X
  • Accomplishments :
    • Virtualized servers and saved +$50K in hardware upgrades
    • Setup an automated contingency plan with daily offsite data updates
    • Decreased legal liabilities with in-house email hosting
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  Perl Software Engineer Jul 2006 - Apr 2008 ValueClick Media - Santa Barbara, CA

  • Developing web tools to connect advertisers and publishers and assist them to improve their internet advertising targets
  • Focus : Video advertising
  • Used skills and tools :
    • Perl, mod_perl, MySQL, Perforce, Apache, Mason, Catalyst, DBIx::Class
  • Platforms :
    • Linux (CentOS, Redhat)
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  Call Processing / VoIP Engineer May 2005 - Jul 2006 Vonage - Edison / Holmdel, NJ

  • Perl + Expect Application development - SIP network monitoring & user registration reporting
  • System tools developent to ensure high availability of all SIP Proxies, RTP systems
  • Troubleshoot failed SIP calls and update phone routes
  • Used skills and tools :
    • SSH, SSL, Perl, Expect, Nagios, MySQL, SIP, RTP, Shell scripting, some PHP and C
  • Platforms :
    • Linux (CentOS, Redhat)
  • Accomplishments :
    • Significantly increase Vonage SIP IQ by a significant improvement of production monitoring, detecting and reporting anomalies using my tools. Thanks to these tools the production environment was turned into the well managed and reliable SIP network it is today.
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  Unix System Administrator Feb 2004 - Apr 2005 ExxonMobil Research & Engineering - Clinton, NJ

  • Linux Beowolf Cluster Administration running PBS queueing system
  • Install, Upgrade, Patch Unix/Linux systems through makefiles, yum and rpm
  • Configure non-modular kernels from scratch
  • Install & Config Scientific Applications (Matlab, Star-cd, NMR,...)
  • Automate sys admin tasks (Perl, Python, sh, bash, C)
  • Provide system and application support to scientists and engineers
  • Used skills and tools :
    • SSH, SSL, Perl, Python, C, R, Tk, Yum, rpmbuild, Shell scripting, Apache2, Tomcat5
    • PowerBroker, Remedy ticketing, Exceed, Arkeia backup, Verita Netbackup
  • Platforms :
    • RedHat Linux 7/9/Enterprise, SGI, HP, AIX, SUN Solaris, SUN OS
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  Perl Web Developer (temp) Sept 2003 - Dec 2003 Peregrine Computer Consultants Corp - Fairfax, VA

  • Website development using Perl & MySQL
  • Examples :
    • paws4people.org
    • hbifreight.com
  • Used skills and tools :
    • Perl, mod_perl, MySQL, Photoshop 6, ImageMagick, SSH, SSL
  • Platforms :
    • RedHat Linux 7
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  ChemInformatics Software Development
  Dec 1996 - Jul 2002 Johnson & Johnson Pharmaceutical Research Institute - Beerse, Belgium (EU)

  • Served as Team Lead ChemInformatics R&D software development
  • Project Management scientific programming team
  • Oracle v7, v8, 8i DBA
  • Designed a Chemical Attribute and Related Objects database (CHAROn) using Oracle on SGI Unix
  • Perl update mechanism for uploading new compounds and their on-the-fly calculated properties
  • Perl mechanism for clustering the compound database into compound families (PerlDBI/DBD, 10-day number crunching routine, load-balanced on a 32 CPU SGI server)
  • Perl RPC routine to keep parts of the compound database in memory for rapid similarity search purposes (heavy shared memory usage, IPC communication with daily Perl update routine)
  • Used skills and tools :
    • Perl, Python, Tk/Tcl, 3rd party ChemInformatics software (MSI, Daylight, BCI) & chemistry file formats (MDL, SD, TDT, SMI)
    • C, Shell scripting, Web technology, JavaScript, cgi-bin, SSL
    • Oracle DBA/Developer skills (SQL*Loader, SQL*Net, SQL*Plus, PL/SQL, Pro*C), MS Project
  • Platforms :
    • SGI Irix (O2, Indy, Octane, O200, O2K, O3K), Win2K, Linux, Solaris, HP-UX
  • Accomplishments :
    • Automated the NMR R&D lab, i.e. gather data from real time experiments, retrieve archived data from Oracle databases & flatfiles on different platforms (HP-UX, SGI, NT, Vax) and present the results in a usable form to the NMR scientists. This automation package is currently used by JNJ Spain, France and Belgium and consists of Unix shell scripts, Bruker-NMR macros, C and Pro*C routines.
    • Created a greater visibility of the Discovery Department, leading to a major increase of compound selection business enterprise-wide.