{"id":3833091,"url":"https://alion.io/job/mastercard-site-reliability-engineer-i-2","title":"Site Reliability Engineer I","company":{"id":252,"name":"Mastercard","domain":"mastercard.com","url":"https://alion.io/company/mastercard","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":85,"open_postings":175,"ghost_share":0.023,"stale_share":0.486,"repost_share":0.074,"time_to_fill_p50_days":27,"computed_at":"2026-11-08T05:47:12Z"}},"role":"DevOps","role_family":"DevOps","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["O'Fallon, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":61000,"max":102000,"currency":"USD","period":"year","gross":null,"usd_annual":102000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"Bash","optional":false},{"name":"CI/CD","optional":false},{"name":"ITSM","optional":false},{"name":"LDAP","optional":false},{"name":"Linux","optional":false},{"name":"Platform Engineering","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"Unix","optional":false},{"name":"Windows","optional":false},{"name":"C++","optional":true},{"name":"Java","optional":true},{"name":"Ruby","optional":true}],"status":"live","first_seen_at":"2026-11-05T20:07:48Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-07T22:45:03Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Our Purpose\nMastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.\nTitle and Summary\nSite Reliability Engineer IOverviewThe Service Operations Technology (SOT) BizOps team is seeking a Site Reliability Engineer (SRE) to support and enhance enterprise infrastructure, asset management, automation, and operational platforms. This role focuses on reliability, observability, automation, release management, and operational excellence across business-critical services.\nAre you passionate about understanding complex systems, automating repetitive work, and improving platform reliability? Do you thrive at the intersection of software engineering and operations?\nBusiness Operations plays a critical role in Mastercard's DevOps and SRE transformation by partnering with engineering teams to improve operational readiness, automate processes, and ensure platforms meet the highest standards of availability, performance, security, and scalability.\nSuccessful candidates are curious, collaborative, and committed to continuous improvement while balancing production support with strategic engineering initiatives.\nRole\nBusiness Operations serves as the operational excellence and production readiness steward for the platforms we support. We partner closely with software engineering teams to design, implement, operate, and continuously improve technology services.\nAs a Site Reliability Engineer, you will ensure operational requirements including availability, resiliency, performance, observability, security, capacity management, and deployment automation are incorporated throughout the software lifecycle.\nThis role bridges engineering and operations by supporting production services, managing operational risk, driving automation, participating in releases, and improving platform reliability through proactive engineering and continuous improvement.\nPosition Qualifications\nExperience administering enterprise platforms in production environments, including upgrades, patching, troubleshooting, performance tuning, and operational support.\nExperience with CMDB, discovery, asset management, inventory management, or related enterprise technologies.\nStrong Linux/Unix administration skills; working knowledge of Windows administration and authentication technologies including Active Directory, LDAP, SSH, and service accounts.\nExperience supporting software releases, production changes, and operational readiness activities.\nStrong scripting and automation skills using Python, PowerShell, Bash, or similar technologies.\nExperience with APIs, integrations, workflow automation, and orchestration technologies.\nUnderstanding of monitoring, observability, alerting, and operational health management.\nExperience troubleshooting distributed systems across infrastructure, application, network, and integration layers.\nStrong analytical, problem-solving, and root cause analysis skills.\nAbility to manage operational responsibilities while driving strategic automation and platform improvements.\nStrong communication and stakeholder management skills.\nAbility to effectively manage and resolve high-severity production incidents.\nResponsibilities\nSupport the full service lifecycle from design and implementation through deployment, operation, and optimization.\nServe as an operational owner for critical enterprise platforms, ensuring reliability, availability, performance, and scalability.\nSupport production readiness reviews, launch assessments, capacity planning, and operational validation.\nMonitor, maintain, and troubleshoot services in production environments.\nLead incident response, root cause analysis, and implementation of long-term corrective actions.\nDrive automation initiatives that reduce operational toil and improve platform stability.\nSupport releases and deployments while ensuring production readiness and operational excellence.\nPerform operating system maintenance, patching, vulnerability remediation, and lifecycle management.\nAnalyze operational data and ITSM activities to identify resiliency improvements and operational risks.\nCollaborate with globally distributed teams across multiple regions and time zones.\nMaintain operational documentation and contribute to knowledge sharing and mentoring efforts.\nPlatform Engineering & Automation\nEngineers supporting platform engineering and automation may also:\nDesign and maintain deployment automation and infrastructure management solutions.\nSupport CI/CD pipelines and modern DevOps practices.\nDevelop tools, integrations, and automation that improve reliability, efficiency, and scalability.\nEnhance platform visibility, operational effectiveness, and customer experience.\nEvaluate emerging technologies and identify modernization opportunities.\nPartner with engineering teams to improve deployment reliability and reduce operational risk.\nAdditional Qualifications\nBachelor's degree in Computer Science, Engineering, Mathematics, or a related field, or equivalent experience.\nExperience with software engineering principles, automation, scripting, pipeline management, and system design.\nStrong sense of ownership, urgency, and systematic problem-solving.\nExperience debugging, optimizing, and automating complex technical environments.\nAbility to manage competing priorities and work effectively with multiple stakeholders.\nExperience in one or more programming languages such as Python, Java, Go, C++, Ruby, or similar.\nKnowledge of Site Reliability Engineering principles, DevOps practices, observability, automation-first operations, and continuous improvement.\nExperience working across development, operations, product, and infrastructure teams.\nFamiliarity with source control systems, CI/CD platforms, artifact repositories, and infrastructure automation technologies.\n• Demonstrated passion for innovation, automation, operational excellence, and continuous learning.Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact  and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.\nCorporate Security Responsibility\nAll activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:\nAbide by Mastercard’s security policies and practices;\n\nEnsure the confidentiality and integrity of the information being accessed;\n\nReport any suspected information security violation or breach, and\n\nComplete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.\n\nIn line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.\n\nTHIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 02/03/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.\n\nPay Ranges\nO'Fallon, Missouri: $61,000 - $102,000 USD","description_format":"text","description_chars":9111,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Continuous learning","Life insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cards & Card Issuing","Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-11-05T20:07:48Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 414 · green card filings: 190","filings_12m":414,"filings_prev_12m":639,"green_card_filings_12m":190,"median_offered_wage_usd":137086,"route":null,"cap_exempt":false,"checked_at":"2026-11-07T07:57:00+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":298}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":2,"expected_fill_days":27,"reasons":["conf:7","stale_co","velocity","win:early","comp:junior,brand"],"computed_at":"2026-11-08T05:47:12Z"},"pay":{"stated_usd_annual":102000,"is_top_pay":false},"html_url":"https://alion.io/job/mastercard-site-reliability-engineer-i-2","json_url":"https://alion.io/job/mastercard-site-reliability-engineer-i-2.json","meta":{"generated_at":"2026-11-08T06:22:36Z","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":13864,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-09T00:00:00Z"}},"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":252},"rest":"https://alion.io/mcp/rest/get_company?id=252"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmastercard-site-reliability-engineer-i-2"},{"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%2Fmastercard-site-reliability-engineer-i-2"},{"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%2Fmastercard-site-reliability-engineer-i-2"},{"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/mastercard-site-reliability-engineer-i-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmastercard-site-reliability-engineer-i-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3833091}},{"tool":"search_jobs","arguments":{"company":"mastercard.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3833091},"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. 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