Senior Linux Engineer - Data Centre Migration Project
Tech Stack / Keywords
Firma i stanowisko
The project involves a large-scale Data Center Migration program supporting business-critical payment card acceptance, acquiring, and issuer processing systems on the Linux platform. It focuses on transaction authorization and high-volume transaction processing in the payments / financial services industry.
Wymagania
- 5+ years of professional experience in Linux administration / engineering, preferably in enterprise production environments.
- Advanced hands-on knowledge of Red Hat Enterprise Linux (RHEL) and/or Oracle Linux.
- Strong Linux system administration, configuration and troubleshooting skills.
- Experience with application or Data Center migration projects.
- Experience supporting enterprise application servers such as JBoss, Tomcat, Apache, OHS or WildFly.
- Practical experience with Ansible and/or Rundeck.
- Good scripting skills in Bash and/or Python.
- Strong understanding of IP networking and infrastructure dependencies.
- Knowledge of PKI, certificates, TLS and PGP.
- Experience with Linux performance monitoring, diagnostics and incident resolution.
- Understanding of High Availability, scalability, resilience and disaster/recovery considerations.
- Understanding of infrastructure components including networking and load balancing.
- Experience supporting critical production environments.
- Strong analytical and troubleshooting skills.
- Ability to quickly understand complex infrastructure environments.
- Good communication and collaboration skills.
- Good written and spoken Polish and English.
Nice to have:
- Current RHCE certification.
- Previous experience with Data Center-to-Data Center migrations.
- Experience in payments, banking or financial services.
- Knowledge of payment card processing, acquiring, issuing or transaction authorization environments.
- Experience supporting near-real-time and high-volume transaction processing systems.
- Experience working in international, cross-functional infrastructure teams.
Obowiązki
- Administration, configuration and maintenance of enterprise Linux server environments.
- Supporting the migration of applications and infrastructure between data centers.
- Preparing Linux environments for application deployment, testing and migration.
- Building and configuring infrastructure required for new environments.
- Supporting application servers and middleware, including JBoss, Tomcat, Apache, OHS, WildFly and Spring Boot environments.
- Automating infrastructure and operational activities using Ansible and Rundeck.
- Diagnosing and resolving complex Linux, infrastructure and application-related issues.
- Performing Linux system performance analysis, monitoring and troubleshooting.
- Ensuring high availability, performance, reliability and security of production environments.
- Supporting infrastructure activities related to networking, load balancing and TLS.
- Working with security mechanisms including PKI and PGP.
- Creating automation and operational scripts using Bash and/or Python.
- Monitoring environments and proactively addressing performance and reliability issues.
- Cooperating closely with Application, Middleware, Network and Infrastructure teams.
- Working with Project Managers throughout the build, testing, migration and cutover phases.
- Identifying and resolving technical blockers during the migration.
- Creating and maintaining high-quality technical documentation in Confluence.
- Supporting BAU activities alongside migration-related tasks.
Benefity
- Long-term B2B cooperation.
- Participation in a strategic Data Center Migration program.
- Work with large-scale, business-critical Linux environments.
- Exposure to systems supporting high-volume payment processing and transaction authorization.
- Cooperation with experienced Application, Middleware, Infrastructure and Network specialists.
- Technically challenging environment with a strong focus on availability, performance, resilience and security.
Inne informacje
Informujemy, że administratorem danych jest Crestt z siedzibą w Warszawie, ul. Rejtana 17 (dalej jako "administrator"). Masz prawo do żądania dostępu do swoich danych osobowych, ich sprostowania, usunięcia lub ograniczenia przetwarzania, prawo do wniesienia sprzeciwu wobec przetwarzania, a także prawo do przenoszenia danych oraz wniesienia skargi do organu nadzorczego. Dane osobowe przetwarzane będą w celu realizacji procesu rekrutacji. Podanie danych w zakresie wynikającym z ustawy z dnia 26 czerwca 1974 r. Kodeks pracy jest obowiązkowe. W pozostałym zakresie podanie danych jest dobrowolne. Odmowa podania danych obowiązkowych może skutkować brakiem możliwości przeprowadzenia procesu rekrutacji. Administrator przetwarza dane obowiązkowe na podstawie ciążącego na nim obowiązku prawnego, zaś w zakresie danych dodatkowych podstawą przetwarzania jest zgoda. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia ewentualnych roszczeń, a w przypadku wyrażenia zgody na udział w przyszłych postępowaniach rekrutacyjnych - do czasu wycofania tej zgody. Zgoda na przetwarzanie danych osobowych może zostać wycofana w dowolnym momencie. Odbiorcą danych jest serwis Just Join IT oraz inne podmioty, którym powierzyliśmy przetwarzanie danych w związku z rekrutacją.
CRESTT sp. z o.o.
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