We
are looking for an AppOps Application Administrator to join a large-scale data
centre migration programme supporting critical payment processing systems. This
is a production-critical role focused on ensuring stability, continuity, and
reliability of application environments during migration activities. The
platform supports high-volume transaction processing in card issuing and
acquiring systems, operating in near real-time environments with strict
requirements around availability and performance.
Responsibilities
are looking for an AppOps Application Administrator to join a large-scale data
centre migration programme supporting critical payment processing systems. This
is a production-critical role focused on ensuring stability, continuity, and
reliability of application environments during migration activities. The
platform supports high-volume transaction processing in card issuing and
acquiring systems, operating in near real-time environments with strict
requirements around availability and performance.
Responsibilities
- Administer, configure, and maintain application environments
supporting payment systems - Monitor application performance, stability, and operational
continuity - Support application servers and resolve incidents or operational
issues - Verify and implement production changes in controlled environments
- Participate in application migration activities within the data
centre programme - Collaborate with internal teams, external vendors, and
international stakeholders - Support environment setup, configuration, and access preparation
for migration phases - Diagnose and resolve technical issues impacting application
environments - Maintain
documentation and operational knowledge in Confluence
Requirements
- Experience in application operations or application administration roles
- Experience supporting environments during infrastructure or data centre
migrations - Strong scripting skills in at least one of the following: Perl, PowerShell,
Shell, Bash, or Python - Experience working with PL/SQL or T-SQL
- Understanding of application infrastructure including networking, load
balancing, TLS, and resilience - Experience supporting high-availability transaction systems
- Knowledge of monitoring, performance optimisation, and reliability in
transactional environments - Strong collaboration skills in international team setups
- Fluent Polish and
English
Nice to have
- Experience in payments, acquiring, or card
processing environments - Exposure to large-scale enterprise transformation
programmes - Experience working with middleware or integration
layers - Familiarity
with release management and change governance processes
Benefits
- Solid, competitive salary
- Work in a multinational environment on international projects
- Comprehensive healthcare
- Long-term B2B contract with a stable project pipeline
- Work model: Warsaw-based, primarily onsite with
1–2 remote days per month