ZOS Network Consultant

Req ID:384446NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.We are currently seeking a ZOS Network Consultant to join our team in New York, Remote, New York (US-NY), United States (US).Job DescriptionIn this role you will be joining a team of technical professionals supporting a large-scale z/OS systems platform. This position requires an experienced systems programmer with at least 3 years of experience supporting the z/OS Mainframe Network environment. Responsibilities include configuring and maintaining the integrity and data/IP security of the Mainframe's host communication subsystems and associated program products. Your responsibilities will include: Being part of a multi-functional team, supporting IBM mainframe networks and transmissions products and infrastructure.Participation in support rota providing 24x7 cover.Perform TCPIP Port Reserves (Additions, Deletions, Changes) Perform VTAM updates (Additions, Deletions, Changes)Manage OSA Adapters in a complex mainframe environmentPerform VTAM PU/LU updates (Additions, Deletions, Changes) including Enterprise Extenders (EE)Implement AT-TLS rules (digital certificate management). Configure and manage IPSEC policies (permit/deny rules, VPN- ipsec tunnels)Trace, Debug and Error AnalysisCommunicate regularly with technical, applications and operational staff to ensure Network connectivity and security (may involve some after hours and weekend work)Basic Required Qualifications:Experience of working as a z/OS Systems Specialist in the IT industry of over 10+ yearsPreferred Qualifications:Experience in administering file transmissions products such as Connect:Direct and FTP, or alternatively good experience as a user of these products.Knowledge of z/OS and z/OS utilities. Understanding of z/OS networking services, structure and related software and protocols.Understanding of network security disciplines (IPSec, TLS/SSL, certificates, etc) and how they relate to file transmission.Experience of problem management from initial diagnosis through to resolution.Understanding of the Change Management process.Ability to customize and manage secure SNA and TCP/IP networks under z/OS.Knowledge of mainframe network management tools, e.g. NetMaster, and multi-session manager products such as TUBES and Supersession. Experience of managing mainframe printing products.General z/OS systems programming experience.Knowledge of System z hardware including the OSA-Express network cards.Excellent problem-solving and analytical skillsGood communication, teamwork and negotiation skillsFamiliarity with the Cisco Network Solutions The ability to work to tight deadlines under pressureGood organisational skillsFlexibility and adaptabilityThe ability to create and maintain strong working relationships with colleagues and customersBusiness awareness and understanding of business requirements of ITA willingness to keep up to date with developments in new technologyAn understanding of information legislation, such as the Data Protection Act.The role is based at our Sheffield or Wakefield datacentres and offers the flexibility to work from home for part of the weekNTT DATA provides a reasonable range of compensation for U.S.-based positions. The starting pay range for this role is $125,000-$156,000. Actual compensation will depend on a number of factors, including the candidate’s relevant experience, technical skills, and other qualifications.This position may also be eligible for incentive compensation based on individual and/or company performance.This position is eligible for company benefits including medical, dental, and vision insurance with an employer contribution, flexible spending or health savings account, life and AD&D insurance, short and long term disability coverage, paid time off, employee assistance, participation in a 401k program with company match, and additional voluntary or legally-required benefits.About NTT DATANTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, .NTT DATA endeavors to make accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at . This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.Job SummaryJob number: 384446Date posted : 2026-08-10Profession: OtherEmployment type: Full time