{"id":1938837,"url":"https://alion.io/job/citi-senior-mainframe-applications-developer","title":"Senior Mainframe Applications Developer","company":{"id":7841,"name":"Citi","domain":"citi.com","url":"https://alion.io/company/citi","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":363,"ghost_share":0.008,"stale_share":0.003,"repost_share":0.091,"time_to_fill_p50_days":10,"computed_at":"2026-10-12T06:55:09Z"}},"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":["Mississauga, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":94300,"max":141500,"currency":"CAD","period":"year","gross":null,"usd_annual":99226},"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":"JCL","optional":false}],"status":"live","first_seen_at":"2026-10-05T00:00:00Z","employer_posted_date":"2026-10-05","last_verified_at":"2026-10-12T12:16:59Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"As a Senior Mainframe Applications Developer, you will build, test, and support critical mainframe applications using COBOL, JCL, and CICS, directly shaping how Citi's technology platforms serve its business users. This role sits within Citi's Technology team, where you will take ownership of the full development lifecycle, from design through implementation, while advising teams on best practices. You will work with a high degree of independence, acting as a go-to specialist for complex application challenges.\nResponsibilities\nDesign and build new or revised mainframe applications using COBOL, JCL, and CICS to meet specific business needs.\nLead feasibility studies, time estimates, and cost estimates to support technology planning decisions.\nManage every phase of the development lifecycle, including analysis, design, construction, testing, and implementation.\nProvide ongoing operational support to business users on live applications.\nAnalyze complex system and business process issues, drawing on in-depth application development expertise to resolve them.\nDevelop security measures following implementation reviews to strengthen system design and functionality.\nAdvise clients and other technology teams on programming solutions and support the rollout of customer-facing systems.\nCoach junior developers and help define development standards for the wider team.\nRequired Qualifications & Skills\n5 to 8 years of experience in systems analysis and applications development.\nHands-on experience building and maintaining applications with COBOL.\nHands-on experience writing and managing JCL scripts.\nPractical experience developing with CICS.\nA track record of managing and delivering successful technology projects.\nWorking knowledge of project management and consulting techniques.\nAbility to manage shifting priorities and tight deadlines without losing focus on quality.\nBachelor's degree or equivalent practical experience.\nEducation:\nBachelor’s degree/University degree or equivalent experience\nWhat We Offer\nJoin a technology team where your mainframe expertise directly supports systems used across the business, and where your growth is matched by real ownership of projects.\nWork in a hybrid model with 3 days in the office and 2 days working remotely.\nGain exposure to large-scale systems and global technology teams.\nAccess structured learning and development programs to grow your technical skills.\nBenefit from financial wellbeing programs and resources that support long-term planning.\nWork in an environment that supports a sustainable balance between career and personal life.\nBuild and support the mainframe systems that keep Citi's business running by applying today.\n------------------------------------------------------\nJob Family Group:\nTechnology------------------------------------------------------\nJob Family:\nApplications Development------------------------------------------------------\nTime Type:\nFull time------------------------------------------------------\nPrimary Location Full Time Salary Range:\n$94,300.00 - $141,500.00------------------------------------------------------\nMost Relevant Skills\nPlease see the requirements listed above.------------------------------------------------------\nOther Relevant Skills\nFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------\nAutomated Processing and AI\nWe use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.\nImportantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.\n------------------------------------------------------\nThis job opening is for an existing job vacancy.\n------------------------------------------------------\nCiti is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.\nIf you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.\nView Citi’s EEO Policy Statement and the Know Your Rights poster.","description_format":"text","description_chars":4839,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Canada","iso":"CA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Services","Wealth Management & Financial Advisors","Payment Processing & Gateways","Consumer Loans & Pawnshops"],"lifecycle":[{"event":"open","at":"2026-10-06T01:22:00Z"}],"visa":[],"liveness":{"score":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.795,"p_room":0.75,"age_days":7,"expected_fill_days":10,"reasons":["conf:1","velocity","win:late","comp:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":{"stated_usd_annual":99226,"is_top_pay":false},"html_url":"https://alion.io/job/citi-senior-mainframe-applications-developer","json_url":"https://alion.io/job/citi-senior-mainframe-applications-developer.json","meta":{"generated_at":"2026-10-12T13:45:14Z","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":21570,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":7841},"rest":"https://alion.io/mcp/rest/get_company?id=7841"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fciti-senior-mainframe-applications-developer"},{"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%2Fciti-senior-mainframe-applications-developer"},{"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%2Fciti-senior-mainframe-applications-developer"},{"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/citi-senior-mainframe-applications-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fciti-senior-mainframe-applications-developer"}]}