System Administrator

Madiff
Warsaw, województwo mazowieckie
Full time
16 godzin temu

We are looking for a Middleware & Systems Administrator to join our team on a long-term engagement inside a modern payments environment.

The team operates enterprise middleware, transaction processing services and supporting platforms that demand 24/7 reliability. You will focus on system administration, optimisation and incident resolution for middleware and database-backed services supporting critical financial workloads.

What you will do

  • Deploy, configure and maintain WebLogic middleware and Linux application servers

  • Perform routine database support tasks and optimise SQL queries against Oracle databases

  • Manage application lifecycle tasks: patching, releases, configuration changes, rollback plans

  • Monitor systems, investigate alerts, troubleshoot incidents and apply fixes or escalate appropriately

  • Maintain runbooks, SOPs and technical documentation for operational procedures

  • Automate tasks using Bash/Python scripting and automation tools (Ansible, Terraform where applicable)

  • Support backup, restore and disaster recovery procedures, including DR drills

  • Manage certificates, keys and basic network configurations

  • Collaborate with developers, DBAs, network and security teams on cross-domain issues

  • Participate in on-call rota and occasional out-of-hours maintenance windows

  • Contribute to performance tuning and capacity planning



Requirements


  • 2–3 years’ experience administering applications or databases in production environments

  • Hands-on experience with WebLogic administration (installation, domain management, tuning)

  • Strong Linux (Red Hat/CentOS/Oracle Linux) skills — services, logs, package management, networking

  • Working knowledge of Oracle DB and SQL query optimisation

  • Good troubleshooting skills, log analysis and root-cause investigation

  • Professional attitude to operational discipline and documentation

  • English at a working level

Nice to have

  • Exposure to Oracle DBA tasks (backups, tuning)

  • Familiarity with Docker/Kubernetes

  • Experience with Ansible, Python scripting, CI/CD for ops tasks

  • Exposure to Prometheus, Grafana, ELK/Elastic

  • Understanding of security & compliance in financial systems

  • Experience with ServiceNow or other ITSM tooling



Benefits

  • Solid, competitive salary.
  • Work in multilingual, multinational and multicultural environment on international projects
  • Medical care


Apply
Other Job Recommendations:

IT Administrator

Cloudbeds
Polska
  • Assist in IT's responsibilities in building,...
  • Act as an escalation point of contact for internal end-user...
1 tydzień temu

Administration & Operations Intern

Seargin
Gdańsk, województwo pomorskie
  • Participating in the management and archiving of company...
  • Proficiency in MS Office, especially Word and Excel...
2 tygodnie temu

Administrative Technician

City of Fort Worth
Kraj Wysoczyna, Południowo-wschodni
42 520 USD - 55 273 USD
The City of Fort Worth is one of the fastest growing large cities in the U.S. Our employees serve the needs of nearly 1,000,000...
2 tygodnie temu

Principal IT Systems Engineer

Zoll Medical Corporation
Warsaw, województwo mazowieckie
  • Perform cost-benefit and return-on-investment analyses for...
  • Stay current with industry technologies, evaluate existing...
1 tydzień temu

Agent Ochrony - salon meblowy (11h) / hotel (system nocny 8h)

Ochrona Juwentus
Poznan, województwo wielkopolskie
Agent Ochrony - salon meblowy (11h) / hotel (system nocny 8h) - Poznań W związku z nowymi wyzwaniami i rozwojem technologii,...
1 tydzień temu

Tester / Delivery Engineer - Embedded Systems

Teleste
Wrocław, województwo dolnośląskie
If you enjoy working close to hardware, configuring systems, and testing software in real-world scenarios — this role is for you...
3 tygodnie temu

Administration Assistant

Solenis
województwo łódzkie
  • Coordinate daily office operations (supplies, equipment,...
  • Provide administrative support to managers and teams...
4 tygodnie temu

Senior System Analyst

zero effort nonbank (ZEN)
powiat lubelski, województwo lubelskie
  • Strong skills in system design, business process modeling,...
  • Ability to create and maintain detailed technical...
3 tygodnie temu

Systems Architect

ZF
Bielsko-Biała, województwo śląskie
  • As System Architect you are acting role in development of...
  • You are responsible for developing new technologies like:...
3 tygodnie temu

Business/System Analyst

Andersen Lab
powiat lubelski, województwo lubelskie
  • Defining system requirements and integration specifications...
  • Describing business rules and scenarios in a vendor-ready...
2 tygodnie temu