Senior Linux Engineer – DC Migration Programme
We are looking for a Senior Linux Engineer to join a
data centre migration programme supporting critical payment processing
platforms. This role sits within the core infrastructure stream and focuses on
ensuring stability, performance, and successful migration of high-availability
transaction systems. The platforms support payment card acceptance,
acquiring services, and issuer processing, operating in real-time environments
with strict requirements around availability, security, and performance.
Responsibilities
Responsibilities
- Administer, configure, and maintain enterprise Linux server
environments
- Support application platforms running on Linux infrastructure
- Build and prepare infrastructure environments for migration
activities
- Monitor system performance, reliability, and availability
- Diagnose and resolve infrastructure issues impacting application
environments
- Support environment setup, configuration, and access preparation
for migration phases
- Collaborate closely with application, middleware, and
infrastructure teams during migration execution
- Maintain operational
documentation and technical knowledge in Confluence
Requirements
- Advanced Linux system administration experience
- Strong experience with Red Hat Enterprise Linux or Oracle Linux
- Experience supporting application servers such as JBoss, Tomcat, Apache,
OHS, WildFly, or Spring Boot environments
- Experience with automation tools such as Rundeck or Ansible
- Strong experience with Linux monitoring, performance analysis, and
troubleshooting
- Scripting skills in Bash or Python
- Solid understanding of IP networking and infrastructure concepts
- Experience supporting high-availability or high-transaction systems
- Experience supporting infrastructure or data centre migration programmes
- Strong collaboration
skills in international engineering environments
Nice to have
- Understanding of cryptography concepts such as PKI
and PGP
- Experience in payments, fintech, or financial
transaction systems
- Exposure to large-scale enterprise transformation
programmes
- Knowledge
of load balancing, TLS, and secure infrastructure patterns
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