Senior System Administrator (Middle ware)

Middleware administrator is part of a diverse and dynamic team who applies seasoned knowledge to deliver designs for complex, multi-tier, and cross platform IT infrastructure environments. In this strategical role, the Middleware Administrator is responsible for supporting continuous IT operation. The Middleware Administrator will collaborate with users, platform engineers, and operational support teams to provide IT services.

Technological stack:
• x86 server platform
• MS Windows Server 2019 and later
• Astra Linux
• Cyberbackup
• SCOM SCCM
• MS SQL 19 and later
• Oracle RDBMS 12 and later
• PostgreSQL 14 and later

Responsibilities:
• Utilize diverse technology instruments to support large server and database environments across multiple locations in Moscow, support of middleware solutions, integration platforms and Databases based on requests / problem reports.
• Interact with developing and engineering teams.
• Maintain up-to-date inventories according to Citi Records Management policy.
• Maintain COB (Disaster Recovery) infrastructure, onsite support of COB rehearsals.
• Comply with change management process, implement changes for infrastructure services.
• Manage and support integration solutions, infrastructure management tools and database engines at the level of infrastructure.
• Follow backup procedures in accordance with Citi Media Management policies.
• Closely interact with local vendors re: server hardware and software support in Russian.
• Work in shifts, when required. Participation in an on-call rotation (including late night, weekends and public holidays site visits on short notice).
• Priorities, classify and resolve problems utilizing remote tools and distributed teams where necessary.

Qualifications:

• In-depth knowledge of MS infrastructure products: Windows Server, IIS, SCCM, SCOM, Terminal Services etc.
• In-depth knowledge of Linux based web-servers/application servers: Apache Tomcat, Nginx(Angie),Wildfy.
• In-depth knowledge of messaging technologies: Apache Kafka, MQ, Debezium (is a plus).
• Experience with database infrastructure and management tools (e.g. PostgreSQL, Oracle, SQL Server)
• Understanding of data platforms like Hadoop or Greenplum that provide for structured and unstructured data, fault tolerance and high availability.
• Configuration management tools like Ansible, Terraform, Chef/Puppet.
• Understanding container platforms and management, like Docker and Kubernetes is a plus.
• Experience with infrastructure monitoring platforms Zabbix, Prometheus, ELK.
• Experience providing technical support in the complex infrastructure across on-premises, 3rd party hosted. Public Cloud platforms is a plus.
• Understanding of HP, Dell and local vendors x86 platforms.
• In-depth understanding of Backup, Archival, Web, Middleware, Database, Security and Encryption. Virtualization platforms (VMware, Hyper-V, local Russian platforms based on KVM) is a plus. Experience with performance modeling, capacity analysis, and capacity planning.
• Knowledgeable and live experience in implementation and support of Russian / Open Source market of corporate infrastructure SW server and desktop OS, virtualization platforms, ITSM tools, directory services, monitoring, InfoSec, instant messaging and audio/video conference platforms etc is a strong plus.
• Background in technology and infrastructure provisioning preferred.
• Automation via bash or python.

Critical Competencies:
• Strong and effective communication skills to guide meetings, provide direction, prepare and conduct presentations, while interfacing with developers.
• High performance and result oriented.
• Efficient in preparation of architecture documentation: technical requirements, project architecture documents, request for proposal, specifications, business cases etc
• Strategic thinking, ability to enforce the architecture solution by influencing decisions through advice, counsel, or facilitating services.
• Team player with ability to collaborate and take the initiative to master new technologies.
• Demonstrate composed analytical thought to resolve issues in high pressure situations.
• Clear and concise written and oral communication in Russian and English (Upper Intermediate level).
• Must be able to analyze the financial aspects of technology.

Education:
• Bachelor’s/University degree or equivalent experience.
• Microsoft Certificate is a plus
• Minimum of 5 years of supporting enterprise infrastructure in financial organization
• Foundational knowledge of ITIL