Kamil Zabielski
Chief Executive Officer
Chief Executive Officer
- [...]
Consultant
- Consulting Continuous Integration / Continuous Deployment solutions based on Docker infrastructure and various clustering tools, like Kubernetes, Swarm.
- Consulting application performance problems.
- Prepairing infrastructure audits, including security considerations and architecture designs.
Cloud Consultant
- Managing Amazon Web Services infrastructure.
- Orchestarting infrastructure using
Terraform
andSaltStack
. - Deploying and log aggregation services, like:
Elasticsearch
,Kibana
,Filebeat
,Logstash
. - Managing contenerized applications using:
DCOS
,Mesos
,Marathon
. - Automating all the things, I am able to.
Linux Administrator
- Writing
bash
-based andPython
utils for automation and simplifying routine tasks. - Maintaining local repository, including building, versioning and deploying packages.
- Installating security updates; operating systems and services hardening.
- Creating security policies, configuring IDS and IPS. Building Certificate Authority and PKI..
- Maintaining, creating and developing infrastructure management with
Ansible
. - Providing web application security tests.
- Part of recruiting team.
IT Systems Administrator
- Responsible for network infrastructure and solving issues associated with it, including: network devices configuration, maintaining VPN tunnels (
IPSec
,L2TP
,PPTP
),DHCP
andDNS
services. - Maintaining various databases:
PostgreSQL
,MongoDB
,OracleDB
,Redis
and queues systems (RabbitMQ
). - Configuring and maintaining HTTP servers, like:
Apache2
,nginx
; including security policies, reverse proxies, supportingPython
(Django
,gunicorn
,Celery
) based applications. - Implementing infrastructure monitoring based on
Zabbix
. - Working on and configuring software creation and deployment software, like:
GitLab
,Jenkins
. - Maintaining infrastructure based on
ProxmoxVE
andOpenVZ
containers. - Working on various Linux distributions and UNIX based operating systems, for example:
RHEL
,Debian
,CentOS
andSmartOS
(Solaris-based UNIX OS). - Writing bash-based scripts for tasks automation.
- Deploying virtual-machines using
Kickstart
. - Installing, configuring and maintaining
KVM
based virtual machines andJoyent
containers (Solaris Zones). - Part of recruiting team.
- Working on
Dockerized
applications (Python/Django
mainly).
Systems Engineer
- Resposible for installing, configuring and maintaining various Linux distributions (
CentOS
,RHEL
,Ubuntu
,Debian
,Oracle Linux
, ...) supporting databases and web applications. - Installing, configuring and maintaning
Apache
web server, including hardering and security policies implementation, supporting databases and websites. - Developing, configuring, maintaing backup based on
Bacula Software
. Creating and implementing backup policies including database copies and full operating systems images. - Instructing customers on infrastructure schemes, installed software and creating manual guides on administrative level.
- Configuring and providing monitoring tools like
Zabbix
andGraylog2
. - Implementing and configuring high-availability using tools like
keepalived
,LVS
and various load-balancers, in example:haproxy
,nginx
. - Creating, developing and maintaining clustered environments focused on clustered file-systems like:
OCFS2
,GlobalFS2
,GlusterFS
and clustered web services. - Providing, configuring and maintaining DNS server based on
bind9
including mail - server security policies implementation. - Managing database servers -
MySQL
, mainly -- including cluster solutions. - Securing operating systems with granting permissions for various server administrators.
- Auditing operating systems.
- Creating and maintaining local package repositories.
- Managing infrastructure based on
Ansible
. - Woking and configuring
VMware ESXi Virtualisation Technologies
. - Implementing high availability (including service management, shared block device configuration, clustered file systems) based on
pacemaker
andcorosync
.
IT Systems Administrator
- Implementing, configuring and maintaining
Asterisk
telephony system. - Configuring backup and redundancy solutions based on tools like:
mdadm
,rsync
. - Maintaining virtual-machines based on
KVM
hypervisor. - Configuring
SAMBA
based file shares. - Working on
LXC
.
Containers
Zeek
Bro
Suricata
ELK
SaltStack
Terraform
Python
Bash
Amazon Web Services
Snort
Talks
Terraform - security shift left [PL]
Kubernetes cluster takeover [PL]
What are cloud native skills? [PL]