Senior IT Infrastructure Specialist

O projekcie:
Jako firma rekrutacyjna DCG rozumiemy, że każda organizacja opiera się na pracy doświadczonych specjalistów. Nasz styl zarządzania oraz partnerskie podejście pozwalają nam skutecznie odpowiadać na potrzeby klientów i zapewniać ciągłe wsparcie. W związku z dynamicznym rozwojem oraz dużą liczbą projektów rekrutacyjnych realizowanych dla naszych partnerów, obecnie poszukujemy osoby na stanowisko:

Senior IT Infrastructure Specialist
Praca hybrydowa: 3 dni w tygodniu z biura w Gdańsku, Warszawie lub Łodzi

Offer:

- Private medical care- Co-financing for the sports card- Constant support of dedicated consultant- Employee referral program

Wymagania:
- Strong experience with Windows Server administration, upgrades, and migrations- Strong experience with SQL Server administration, database migrations, clustering, and performance tuning- Proven experience in application and infrastructure lifecycle management- Hands-on experience delivering large-scale infrastructure migration projects, including operating system and database upgrades- Experience providing production support in complex enterprise environments- Strong knowledge of incident, problem, and change management processes- Experience supporting banking or financial applications- Experience with security and compliance activities, including vulnerability remediation, patch management, and audit support- Experience working in integration-heavy environments, including payment, reporting, and regulatory systems- Strong documentation skills, including preparation of HLD, SDD, and operational documentation- Experience coordinating testing, release, and deployment activities- Strong analytical, troubleshooting, and problem-solving skills- Excellent communication and stakeholder management skills- Very good command of English, both spoken and writtenNice to have:
- Experience with Oracle, Java, Python, Power BI, or reporting solutions- Experience with Identity & Access Management solutions, including IIQ/SailPoint and SSO onboarding- Familiarity with banking systems, payment platforms, KYC solutions, and compliance applications- Experience supporting SharePoint migrations, file transfer platforms, and operational task automation- Knowledge of regulatory requirements, audit frameworks, disaster recovery, high-availability, and resilience concepts- Experience working within distributed delivery models and international teams- Experience operating in environments with high operational workload and multiple competing priorities

Codzienne zadania:
- Lead and support infrastructure migration and upgrade initiatives across enterprise environments
- Coordinate migration of SQL Server databases from SQL Server 2016 to SQL Server 2022 environments and clusters
- Support upgrade, migration, and decommissioning of Windows Server environments
- Execute and support operating system and application upgrade activities
- Coordinate vendor-led application upgrades and releases
- Collaborate with external vendors on planning, scheduling, testing, issue resolution, and deployment activities
- Ensure alignment between vendor delivery plans and internal project timelines
- Support validation, testing, and rollout of vendor-delivered solutions
- Manage application lifecycle activities, including incident management, vulnerability remediation, patch management, monitoring, and operational support
- Maintain operational stability across business-critical applications and infrastructure components
- Support application modernization, replacement, and transformation initiatives
- Participate in infrastructure and application migration projects, including SharePoint migrations, banking and compliance system migrations, and integration-related activities
- Support security and compliance initiatives, including IIQ/SSO onboarding, service account remediation, threat modelling, and security baseline implementation
- Coordinate and track migration, upgrade, release, and deployment activities
- Prepare and maintain technical documentation, HLD and SDD documentation, test plans, rollout plans, and verification materials
- Support UAT preparation, release management, and production deployments
- Contribute to backlog reduction and continuous improvement of delivery processes
- Support day-to-day operational activities and incident resolution