{"id":2163374,"url":"https://alion.io/job/cognizant-mainframe-network-systems-programmer","title":"Mainframe Network Systems Programmer","company":{"id":85,"name":"Cognizant","domain":"cognizant.com","url":"https://alion.io/company/cognizant","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Cognizant Careers","truth_index":{"grade":"B","score":76,"open_postings":86,"ghost_share":0,"stale_share":0.977,"repost_share":0,"time_to_fill_p50_days":24,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Guadalajara, Mexico"],"countries":["MX"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"TCP/IP","optional":false}],"status":"live","first_seen_at":"2026-09-02T17:14:55Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-13T04:35:13Z","board_verified":true,"closed_at":null,"days_open":40,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":40},"description":"At Cognizant we have an ideal opportunity for you to be part of one of the largest companies in the digital sector worldwide. A Great Place To Work where we look for people who contribute new ideas, experiencing a dynamic and growing environment. At Cognizant we promote an inclusive culture, where we value different perspectives providing career growth and development opportunities. #WelcomeToCognizant!\nWe are seeking a Mainframe Network / Communication Server Systems Programmer, responsible for the installation, configuration, maintenance, and performance management of IBM Communications Server and enterprise mainframe networking infrastructure on IBM z/OS platforms. The individual will support highly available enterprise environments consisting of multiple production and disaster recovery LPARs supporting mission-critical business applications. Should have experience in Datacenter migrations.\nQualifications:\nExpertise in IBM Communications Server (VTAM/TCP-IP)\nz/OS Communications Server administration\nEnterprise Extender (EE), SNA, TCP/IP networking\nOSA, HiperSockets, Sysplex networking\nTLS/SSL, AT-TLS, SAF/RACF security integration\nNetwork performance tuning and troubleshooting\nNetwork automation and monitoring tools\nADVANCED ENGLISH IS A MUST\nHybrid role in Guadalajara or Mexico City\nCore Responsibilities\nSystem Installation and Maintenance: Install, configure, upgrade, and maintain IBM z/OS Communications Server components including VTAM, TCP/IP, Enterprise Extender (EE), FTP, Telnet, TN3270, and related networking products. Apply software maintenance, PTFs, and version upgrades using SMP/E while ensuring compliance with vendor recommendations and organizational standards. Maintain network definitions, startup procedures, and configuration datasets.\nNetwork Infrastructure Management: Configure and administer SNA and TCP/IP networking environments. Support OSA Express adapters, HiperSockets, Sysplex Distributor, Dynamic VIPA (DVIPA), and Parallel Sysplex networking. Coordinate with distributed network teams to ensure end-to-end connectivity between mainframe and enterprise systems.\nPerformance and Capacity Management: Monitor network performance, analyze communication bottlenecks, and optimize network throughput and response times. Utilize tools such as OMEGAMON for Networks, NetView, MainView, RMF, and SMF reports to identify anomalies and performance trends. Assist with capacity planning activities and network growth initiatives.\nProblem Resolution: Diagnose and resolve complex communication issues involving TCP/IP, VTAM, Enterprise Extender, SSL/TLS, and network security. Analyze packet traces, VTAM traces, dumps, and diagnostic logs to identify root causes. Work closely with network vendors, IBM support, application teams, and infrastructure teams to resolve production incidents.\nWhy Cognizant?\nImprove your career in one of the largest and fastest growing IT services providers worldwide\nReceive ongoing support and funding with training and development plans\nHave a highly competitive benefits and salary package\nGet the opportunity to work for leading global companies\nWe are committed to respecting human rights and build a better future by helping your minds and the environment\nWe invest in people and their wellbeing.\nWe create conditions for everyone to thrive. We do not discriminate based on race, religion, color, sex, age, disability, nationality, sexual orientation, gender identity or expression, or for any other reason covered.\nAt Cognizant we believe than our culture make us stronger!\nJoin us now!","description_format":"text","description_chars":3574,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Mexico","iso":"MX","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Science & Engineering","IT Outsourcing & Dedicated Teams","Engineering Services","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-10-09T08:40:53Z"}],"visa":[],"liveness":{"score":15,"band":"cold","label":"Long shot","p_open":1,"p_active":0.33,"p_room":0.45,"age_days":39,"expected_fill_days":24,"reasons":["conf:1","stale_co","velocity","win:tail","comp:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/cognizant-mainframe-network-systems-programmer","json_url":"https://alion.io/job/cognizant-mainframe-network-systems-programmer.json","meta":{"generated_at":"2026-10-13T04:57:11Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":7728,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":85},"rest":"https://alion.io/mcp/rest/get_company?id=85"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcognizant-mainframe-network-systems-programmer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fcognizant-mainframe-network-systems-programmer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fcognizant-mainframe-network-systems-programmer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/cognizant-mainframe-network-systems-programmer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcognizant-mainframe-network-systems-programmer"}]}