Mail System Administrator - Remote - WS103 - P

• 25 years on the market
  
• PB disk capacity
  
• 2,500+ servers
  
• 500m web hits per day
  
• 5m emails processed per day
  

• Web mail administration:
  
• postfix, dovecot, POP3, IMAP, Rspamd, OpenResty, IceWarp, ZFS
  
• Linux server administration with OpenStack, SaltStack, Ubuntu LTS
  
• Manage web cluster with 200+ servers, 400 CPUs, 30+ TB RAM, 400 TB RAW SSD
  
• Improve existing solutions, suggest improvements, discuss with colleagues
  
• Continuously keep learning and sharing insights and best-practices with your team
  
• Analyze incidents, identify root causes, and ensure they will not occur again
  

Requirements

• Experience with mail system administration
  
• postfix, dovecot,POP3 and IMAP,
  
• Rspamd,IceWarp, ZFS
  

• Do you have experience with Mail Systems administration?
  
• Do you have experience with postfix, dovecot, POP3 / IMAP?
  
• Have you used SaltStack or another config management tool? Which one?
  
• Would you say you are a generalist keen to learn new tools and adopt them quickly?
  
• Is your English good enough to interact with colleagues in different countries?
  

• Poland, Hungary
  
• Romania, Bulgaria, Serbia
  

Benefits

• Long-term, full-time engagement freelance contract when you work remotely
  
• 100% remote work
  
• Senior team to support you
  
• Growth opportunities join conferences and workshops to learn and speak
  
• Great culture hackathons, trips

• Hardware
  
• 200 servers
  
• 400 CPUs
  
• 3200 physical cores / 6400 logical cores
  
• 30+ TB RAM
  
• 400 TB RAW SSD
  
• Configuration management
  
• SaltStack
  
• Web hosting
  
• Ubuntu LTS + nginx, apache, php, MySQL, MariaDB, PostgreSQL, ZFS, LXC, LXD
  
• Email hosting
  
• postfix, dovecot, Rspamd, Halon, IceWarp
  
• Cloud
  
• OpenStack, OpenvSwitch, RabbitMQ, Docker, Docker Swarm, Redis, Galera cluster, gitlab CI
  
• DNS
  
• KnotDNS, bind, PowerDNS
  
• Monitoring
  
• Zabbix