{"id":4276153,"url":"https://alion.io/job/walmart-centroamerica-mainframe-software-engineer","title":"Mainframe Software Engineer","company":{"id":3217220,"name":"Walmart CentroAmerica","domain":"walmartcentroamerica.com","url":"https://alion.io/company/walmartcentroamerica","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":null},"role":"Enterprise Apps","role_family":"Enterprise Apps","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mexico City, Mexico"],"countries":["MX"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CICS","optional":false},{"name":"COBOL","optional":false},{"name":"Db2","optional":false},{"name":"GitHub","optional":false},{"name":"IMS","optional":false},{"name":"JCL","optional":false},{"name":"Jira","optional":false},{"name":"ServiceNow","optional":false}],"status":"live","first_seen_at":"2026-11-13T18:44:27Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T19:03:05Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About the Team\nOur team is responsible for maintaining, supporting, and continuously improving critical Mainframe systems and applications that support key business and financial operations. We focus on ensuring system stability, operational efficiency, and reliable technology solutions through the implementation, maintenance, and modernization of existing platforms.\nWe work collaboratively with global teams to address complex technical challenges, resolve critical incidents, promote continuous improvement, and ensure compliance with software development best practices. Our team values technical expertise, knowledge sharing, innovation, and collaboration to deliver reliable solutions that support business needs.\n About the Role\nAs a Senior Software Engineer (Level H), you will be a one-on-one contributor in a platform-level position. You will be responsible for the implementation and production deployment of mainframe-based systems, as well as the maintenance and possible redesign of existing on-premise applications.\nWhat You'll Do\nTranslating complex business processes into concrete technical implementations\nFollow and act according to the established installation line.\nReads and interprets design diagrams, and effectively replicates that knowledge to junior engineers\nReview GitHub to ensure compliance with software development best practices\nDesign and develop tests throughout the entire software development lifecycle - from unit testing to end-to-end (E2E) testing\nSupport for accounting processes, accounts payable and reports.\nEscalation and resolution of critical incidents.\nProposals for continuous improvements and coordination with global teams.\nWhat You'll Bring\n5+ years of solid and practical programming experience, with a primary focus on the Mainframe ecosystem\nKnowledge of Mainframe languages (COBOL, JCL, DB2, CICS, IMS)\nKnowledge in ServiceNow, Jira, Control-M.\nExperience in development and maintenance of applications in a Mainframe environment.\nKnowledge of batch and transactional processes in mainframe environments.\nAbility to analyze information flows between HOST and satellite systems.\nDemonstrated Experience Implementing Design Patterns\nExcellent ability to independently analyze complex issues, develop innovative solutions, and provide technical leadership\nHighly collaborative mindset with a genuine curiosity to learn and explore software in depth\nOverview of the software development lifecycle on the mainframe\nCommunication Knowledge\n What You'll Bring\n5+ years of solid and practical programming experience, with a primary focus on the Mainframe ecosystem\nKnowledge of Mainframe languages (COBOL, JCL, DB2, CICS, IMS)\nKnowledge in ServiceNow, Jira, Control-M.\nExperience in development and maintenance of applications in a Mainframe environment.\nKnowledge of batch and transactional processes in mainframe environments.\nAbility to analyze information flows between HOST and satellite systems.\nDemonstrated Experience Implementing Design Patterns\nExcellent ability to independently analyze complex issues, develop innovative solutions, and provide technical leadership\nHighly collaborative mindset with a genuine curiosity to learn and explore software in depth\nOverview of the software development lifecycle on the mainframe\nCommunication Knowledge\nNice to Have\nLeadership\nHandling work under pressure\nAdvanced/Intermediate English\n Equal Opportunity Employer\nWalmart, Inc. is an Equal Opportunity Employer - By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing diversity- unique styles, experiences, identities, ideas and opinions - while being inclusive of all people.\nThe above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process.\nAt Walmart de México y Centroamérica, we are committed to fostering a culture of belonging. Therefore, we seek to attract and hire the best talent based on competencies, skills, and potential. We do not discriminate on any grounds, including gender, age, ethnic origin, physical appearance, marital status, HIV-related health conditions or any other illness, socioeconomic status, disability, sexual orientation, gender identity, or gender expression. As a result, throughout the attraction and selection process, we will not request personal information, photographs, or any type of medical examinations. A candidate’s personal information is not relevant during the interview process or for the final hiring decision. At Walmart de México y Centroamérica, we are committed to ensuring that our associates experience a workplace every day that is respectful and free from discrimination and sexual harassment.","description_format":"text","description_chars":5036,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Intermediate (B1)","optional":true}]},"benefits":[],"hiring_locations":[{"name":"Mexico","iso":"MX","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Wholesale","Online Groceries"],"lifecycle":[{"event":"open","at":"2026-11-13T19:03:05Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":13,"reasons":["conf:1","win:early"],"computed_at":"2026-11-13T20:39:28Z"},"pay":null,"html_url":"https://alion.io/job/walmart-centroamerica-mainframe-software-engineer","json_url":"https://alion.io/job/walmart-centroamerica-mainframe-software-engineer.json","meta":{"generated_at":"2026-11-13T20:39:28Z","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":41188,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":3217220},"rest":"https://alion.io/mcp/rest/get_company?id=3217220"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwalmart-centroamerica-mainframe-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"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%2Fwalmart-centroamerica-mainframe-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fwalmart-centroamerica-mainframe-software-engineer"},{"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/walmart-centroamerica-mainframe-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwalmart-centroamerica-mainframe-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4276153}},{"tool":"search_jobs","arguments":{"company":"walmartcentroamerica.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4276153},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}