{"id":2005984,"url":"https://alion.io/job/atos-mainframe-system-programmer","title":"Mainframe System Programmer","company":{"id":3006,"name":"Atos","domain":"atos.net","url":"https://alion.io/company/atos","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Mexico City, 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":true,"technologies":[{"name":"Abend-AID","optional":false},{"name":"HPC","optional":false},{"name":"Syncsort","optional":false},{"name":"COBOL","optional":true},{"name":"Db2","optional":true},{"name":"IMS","optional":true}],"status":"live","first_seen_at":"2026-09-20T02:00:00Z","employer_posted_date":"2026-09-20","last_verified_at":"2026-10-09T02:14:26Z","board_verified":true,"closed_at":null,"days_open":19,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":19},"description":"About Atos Group\nAtos Group is a global leader in digital transformation with c. 63,000 employees and annual revenue of c. €8 billion, operating in 61 countries under two brands - Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE is listed on Euronext Paris.\nThe purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.\nJob Name: Mainframe System Programmer\nCompany: Atos\nLocation: Mexico - Remote\nJob Type: Full-time\nRole Overview:\nAtos is looking for a Mainframe System Programmer to support the installation, maintenance, and administration of the z/OS Mainframe operating system. This role plays a key part in ensuring system reliability, performance, and security while supporting continuous improvement initiatives in a global and collaborative environment.\nKey Responsibilities:\nInstall, upgrade, and administer the z/OS operating system, including RSU maintenance\nPerform system changes in line with Atos security standards and internal controls\nProvide IPL support and resolve JES2/JES3 issues\nMaintain TSO/ISPF environments, including CLIST, REXX, and PROC maintenance\nPerform MVS tuning and manage PARMLIB\nCreate and manage LPARs\nExecute SMP/E activities including Receive, Apply, USERMOD, and exit management\nInstall and upgrade ISV products such as CA1, CA7, CA11, Syncsort, File-Aid, Abend-Aid, Mainview, System Automation, ASG, and BMC products\nSupport testing, implementation, and deployment of new or improved systems and product upgrades\nCollaborate with internal teams, management, and clients to drive continuous service improvement\nParticipate in on-call rotation as required\nMust-have Qualifications / Skills:\nProven experience in installation, maintenance, problem diagnosis, and administration of z/OS\nStrong working knowledge of SMP/E\nProficiency in JCL, ISPF, REXX, CLIST, and SMP/E\nExperience with multiple mainframe products including security, resource, performance, storage, scheduling, application, and hardware management tools\nVerbal and written proficiency in English\nEducational Background:\nBachelor’s degree in Computer Science or a related field, or a relevant technical certification\nProfessional Experience:\nExperience supporting enterprise mainframe environments\nHands-on involvement in z/OS installations and upgrades\nSoft Skills:\nStrong communication and stakeholder management skills\nAbility to work independently and collaboratively in a remote environment\nAnalytical mindset with a focus on system stability and service quality\nGood-to-have Qualifications / Skills:\nExperience with multiple ISV products across the mainframe ecosystem\nFamiliarity with large, complex, or global IT service environments\nSystem-level experience with CICS, IMS, DB2, Communications, and MQ is a strong plus; candidates with this experience will be prioritized for interview\n#LI_MAX\nHere at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.\nAtos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment.\nChoose your future. 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