Zsolt Papp

Expert DevOps Engineer

SAP, SuccessFactors

What did i do?

Senior DevOps Engineer

SAP, SuccessFactors

• Gardener k8s, Rancher k8s

• Azure, GCP, OpenStack

• Agile/Scrum

Consultant, Cloud Architect

Novell Professional Services Hungary (Novell, SUSE, NetIQ, Micro Focus)

• Planning operating and monitoring procedures/workflows and disaster recovery for Linux based infrastructure

• Planning, scaling, implementing Kubernetes (K8s) based infrastructure on bare metal or OpenStack

• Planning and implementing highly available OpenStack infrastructures and Object Stores like Swift and Ceph

• Deep understanding of PKI principles and common encryption standards as it is needed for secure communication and Zero Trust environments

• Docker based infrastructures, image repositories, etc.

• Automation solutions, mostly Ansible and SaltStack

Consultant, Linux Technical Specialist

Novell Professional Services Hungary (Novell, SUSE, NetIQ, Micro Focus)

• Scaling high-load web sites, using custom scripts, SIEGE, httperf and JMeter

• Design and implement MySQL and PostgreSQL clusters

• Configuring Linux Virtual Server as load balancer for HTTP, MySQL, PostgreSQL

• Design and implement complex infrastructure for web application using Jboss, Tomcat, PHP, etc.

• Migrating Linux workloads between virtual and physical by hand (tar/rsync, ssh/netcat), or automated using Platespin products

• Implementing network management systems such as Nagios, ZenOSS, Munin

• Building web proxy cluster for 20000+ users using SQUID, with per-user data quota, and self-written web based (PHP) statistics for users, domain admins and admins

• Building Xen virtualization clusters on SLES10/11 using Heartbeat2, OpenAIS and Corosync

• Held training courses of basic and advanced Linux administering for fellow workers and employees

• Gave presentations on public events in Hungary

• Intermediate knowledge of legacy Novell services like eDirectory, GroupWise, iPrint, iFolder, NCP volumes and file servers, Open Enterprise Server

• Automating SUSE Linux Enterprise Server 9, 10, 11 (AutoYaST) and Red Hat Enterprise Linux 5, 6 (Kickstart) installations and configurations

• Troubleshooting and solving exotic issues in production systems at customer site

• Automating SUSE installations and updates using Ximian Red Carpet (later Novell ZENworks Linux Management)

• Automating SUSE installations and updates using SUSE Manager (based on Red Hat's Spacewalk)

• Creating automated reports of web proxy or Apache2 web server statistics using AWStats, Webalizer, Piwik

Support Engineer

Novell Professional Services Hungary (Novell, SUSE, NetIQ, Micro Focus)

• Technical support for SLES and Novell Linux Desktop 9 customers

• Issue management

• System administration

• Supporting SuSE Linux Professional users on public forums and mailing lists

• Administering Bind DNS, ISC DHCP, Apache2 web server, Postfix SMTP, PostgreSQL, MySQL

• Administering Novell eDirectory (LDAP) services, Novell GroupWise and Messenger collaboration services

• Automating administration as much as possible using bash, perl and php scripts in cronjobs or as cgi scripts

• Writing iptables firewall rules

• Learning to use a lot of GNU tools properly

Móricz Zsigmond műszaki szakközépiskola és Radnai Béla közgazdasági tagozata

• computer system programmer

• high-school graduation

• Ability to solve difficult problems

• Fast learning

• Instructor skills, hold training sessions on managing Linux servers and virtualization (Hungarian)

• Presentations in front of large audience (Hungarian)

• Design and implement infrastructures for huge user base, high load and high availability

• Design, implement, document and manage complex virtual and cloud infrastructure

• Assessing productive systems/infrastructure and creating documentation like expert's reports and diagrams

• Troubleshooting and solving system/software errors

• Advanced skills in managing virtual environments and virtual data centers: VMware, Xen, KVM, Azure, GCP

• Supporting co-workers, common language with developers

• I know what DevOps and DevSecOps is. Really

• Experience in basic networking services like DNS, DHCP, HTTP proxy, loadbalancer systems, file services, web based services, VPN, etc.

• Spam and virus filtering for SMTP

• Experience in fault tolerant and high availability services: heartbeat2, OpenAIS, corosync

• Experience in multipathed storage systems, like iSCSI, FibreChannel, NBD, DRBD, etc.

• Experience in migrating Linux workloads between physical and virtual environments in any means, automated or manually

• Deep knowledge of network management systems: Icinga, Nagios, ZenOSS, Zabbix, Munin, etc.

• Mastering common scripting languages: perl, php, bash, python, etc.

• Using Linux as my primary operating system since 1999

• My experiences are mostly based on SUSE technologies, but I worked on Ubuntu, Debian, CentOS, Red Hat and other systems as well

• Experience in modern cloud and container technologies like OpenStack, Azure, GCP or Kubernetes, Docker or CRI-O

• Know agile methodologies like Scrum, Kanban, etc

SUSE, Red Hat, DevOps, DevSecOps, Azure, Google Cloud Platform, OpenStack, SAP Converged Cloud, Terraform, Chef, Ansible, Idempotency, Mutable/Immutable Infrastructure, Infrastructure Architect, Cloud Architect, High Availability, ArgoCD, CI/CD Pipelines, CloudFoundry, Kubernetes, K8s, Rancher, SAP Gardener, DNS, DHCP, SMTP, LDAP, PKI, Certificate Authority, Performance Tuning, Business Administration, Workflow Design, Knowledge Management, Knowledge Base, Monitoring, Icinga, Zabbix, Munin, Grafana, Prometheus, ZenOSS, Network Layers, Load Balancer Technologies, VPN, Transit Gateway, Virtual Data Center, Phisical Data Center, Role Based Access Control, Zero Trust, Encryption at Rest,

FIXME

• 2005: Linux Professional Institute LPIC-1 Certificate

• 2005: Novell Certified Linux Salesman

• 2007: Novell Certified Linux Professional

• 2007: Novell Certified Linux Engineer

• 2007: Linux Technical Specialist at Novell

• 2007: Data Center Advanced Technical Specialist at Novell

• 2011: Red Hat Certified System Administrator

• 2011: Red Hat Certified Engineer

• 2011: VMware Technical Sales Professional 5

• 2007: Linux az oktatásban konferencia: Apparmor

• 2008: LinuxAkadémia: Xen

• 2009: Free Software Conference: Vékonykliensek

• 2009: LinuxAkadémia: SUSE Studio

• 2012: Linux az oktatásban konferencia: Linux fájlrendszerek

• 2012: LinuxAkadémia: Hype: Virtualizáció és felhő

• Commitment to open source technologies

• Discovering bugs in applications and supporting the developers to fix

• West Highland White Terriers

• Amateur car mechanics