AppOps Application Administrator – DC Migration Programme
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
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