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Network Engineer - Infrastructure Change Oversight

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Citi

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Location:
Poland , Warsaw

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

Citi’s USCC & Wealth Infrastructure Change Management team reviews all infrastructure changes submitted by our Foundational Services partners. This position will require the ability to understand the potential impact of documented changes on the overall availability of the network with a focus on ensuring safe change execution. Additionally, the position will monitor high-risk network change activities during execution and facilitate immediate notification for any unplanned impacts. This role will also partner with the Foundational Services teams to facilitate large scale project initiatives and assist with planning and execution.

Job Responsibility:

  • Evaluate network changes to identify changes that might conflict with other planned infrastructure or application changes
  • When applicable, propose modifications to timing or other details in the change record to mitigate risk and ensure the change is successful
  • Document decisions regarding network changes within change tracker
  • Ensure required controls and processes are in place to maintain business continuity during network changes
  • Work with both infrastructure and application teams to develop an agreed upon execution plan for higher risk changes
  • Participate in change monitoring and oversight during weekend implementation green zones
  • Collaborate with Network teams on large scale network initiatives (EOVS refresh, platform upgrades, and new build-outs)
  • Track and perform root-cause analysis of application impacts caused by network changes
  • Participate in Problem Management reviews of network change caused major incidents
  • Review network change failure root-causes and collaborate with the Foundational Services teams to make process improvements
  • Participate in discussions regarding the ServiceNow SaaS Risk Calculator and make recommendations for improvements

Requirements:

  • 5-7 years of experience in a Network Engineering or Network Operations role
  • Understanding of network services used by large financial organizations
  • Proven track record of operational process improvements
  • Ability to work independently, multi-task, and take ownership
  • Ability to work in a matrix environment and partner with other technology teams
  • Ability to work under pressure and manage to tight deadlines
  • Able to effectively communicate with both management and technical personnel regarding network technology changes, and risks surrounding planned activities
  • Technical Skills: Familiarity with network vendor equipment configuration and operation (Cisco, Nexus, Arista, Juniper, F5, Citrix, Checkpoint, Palo Alto)
  • Knowledge of enterprise TCP/IP communications (IPv4, QoS, IPSEC, VPN, etc.)
  • Understanding of network protocols: (OSPF EIGRP BGP DHCP DNS FTP TFTP)
  • Familiarity with various distributed platform architectures (IaaS, PaaS, SaaS)
  • Knowledge of emerging container platforms (ECS/Andromeda/Bare Metal/Public Cloud)
  • Education: Bachelor’s degree/University degree or equivalent experience
What we offer:
  • Private Medical Care Program
  • Life Insurance Program
  • Pension Plan contribution (PPE Program)
  • Employee Assistance Program
  • Paid Parental Leave Program (maternity and paternity leave)
  • Sport Card
  • Holidays Allowance
  • Sport and team recreation activities
  • Special offers and discounts for employees
  • Access to an array of learning and development resources
  • A discretional annual performance related bonus

Additional Information:

Job Posted:
March 04, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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