Gunther G. Email & Phone Number

Zeewolde, Fl, Nl

Utrecht, Netherlands

Veenendaal, Utrecht, Netherlands

The Hague, South Holland, Netherlands

Main activities:Set up Certificate management system (Lemur) in combination with CFSSL to manage the internal CACreating the scripts that talk to the Lemur API to automatically provide certificates towards web applications. Building an ELK stack, this is achieved by making API calls to the REST API gateway of the ODC Nord data center, which then fully automatically rolls out the necessary servers as a PAAS solution.Setting up internal Antivirus management.Setup /… Show more Main activities:Set up Certificate management system (Lemur) in combination with CFSSL to manage the internal CACreating the scripts that talk to the Lemur API to automatically provide certificates towards web applications. Building an ELK stack, this is achieved by making API calls to the REST API gateway of the ODC Nord data center, which then fully automatically rolls out the necessary servers as a PAAS solution.Setting up internal Antivirus management.Setup / maintenance of monitoring (Checkmk) consist out of adding servers, version management Rollout and maintenance of PFSENSE firewalls.Automation of issuing/managing certificates using Lemur's APIMigration of applications (towards PAAS )Fully automated the deployment and backup of Freeipa user management using Ansible scripts.Deploying servers and associated volumes, networks and firewalls on OpenStack using Ansible and TerraformMade adjustments to the internal central user management (FreeIPA) to increase security regarding user management. Show less

Amsterdam, North Holland, Netherlands

Supporting in-house customers active in financial and insurance sector.Main activities:Migration from RedHat 7 to Oracle 8 of a web content management system for a large Dutch financial institution.Daily management of Linux (Redhat based) systemsDetecting memory problems with a comprehensive Tomcat custom monitoring system.Setting up an Azure pipeline for an AKS cluster in Azure.Daily management, installation and troubleshooting of PALO ALTO and Vyos… Show more Supporting in-house customers active in financial and insurance sector.Main activities:Migration from RedHat 7 to Oracle 8 of a web content management system for a large Dutch financial institution.Daily management of Linux (Redhat based) systemsDetecting memory problems with a comprehensive Tomcat custom monitoring system.Setting up an Azure pipeline for an AKS cluster in Azure.Daily management, installation and troubleshooting of PALO ALTO and Vyos firewallsMaintenance/Installation of Linux servers (Redhat/Debian)Bash shell scripting and python scriptingDevOps with AnsibleMigration of the VYOS infrastructureCloud based installations in AWS and AzureVRRP clustering implementation in vyosAnsible automation ; deployment of applicationsCI/CD deployments in git using gitlabrunner Show less

Luxembourg

Triple profile : security consultant, unix system administrator and database administrator.Unix system Admin:Maintenance / Installation of linux servers (redhat,debian,suse) . Bash shell scripting and python scripting.Maintain a Vmware and kvm virtualization environment.Central config management and deployment of virtual machines with redhat satellite.Devops coding in puppet. Operating-system-level virtualization (docker / openshift / Kubernetes… Show more Triple profile : security consultant, unix system administrator and database administrator.Unix system Admin:Maintenance / Installation of linux servers (redhat,debian,suse) . Bash shell scripting and python scripting.Maintain a Vmware and kvm virtualization environment.Central config management and deployment of virtual machines with redhat satellite.Devops coding in puppet. Operating-system-level virtualization (docker / openshift / Kubernetes )Design & Rollout of a container infrastructure with persistent data volumes .Implement RBAC on the different docker environments of the client based on company policies .Migration of application servers Database Administrator:Maintain a oracle environment of several clustered databases (troubleshooting functionality issues, data guard ,performance issues,...)Maintain / design a mysql environment in docker containers.Security consultant:Hardening of aix / linux / solaris installations trough cis-cat and nessus scans. Patching of linux operating systems.Design & Rollout of Redhat IPA IDMCentralised logging with graylog Database audit oracle. Show less

Luxembourg

Setup / Maintenance from LAMP stacksPerformance troubleshooting on web applications.Installing / maintenance of Web servers.Setting security baselines on web servers.

Luxembourg

Main customer : European Commission (DIGIT)Setup and maintenance of webservers , webapplications and (Reverse) Proxies.

Leuven

Mainly managing the Electronic IDentity project for the Belgian government.This consists of installation maintenance of application and database servers

Brussels Area, Belgium

Maintain windows environment.Coldfusion administrator .

Brussels Area, Belgium

Clients:-Small companies-Second line helpdesk (Ericsson)

Bachelor Of Informatics, Information Technology

Bachelor degree in information technology.

Education record