{"id":3687883,"url":"https://alion.io/job/mastercard-senior-site-reliability-engineer-10","title":"Senior Site Reliability Engineer","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":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"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":"Chef","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"ITSM","optional":false},{"name":"Maven","optional":false},{"name":"Self-Healing","optional":false},{"name":"Bitbucket","optional":true},{"name":"C++","optional":true},{"name":"Java","optional":true},{"name":"Perl","optional":true},{"name":"Python","optional":true},{"name":"Ruby","optional":true},{"name":"Shift-Left Security","optional":true}],"status":"closed","first_seen_at":"2026-11-03T15:33:49Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-07T18:02:17Z","board_verified":false,"closed_at":"2026-11-07T18:02:17Z","days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"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\nSenior Site Reliability EngineerThe PTS-E SRE team is looking for a Site Reliability Engineer who can help us solve problems, build our CI/CD pipeline and lead Mastercard in DevOps automation and best practices.- Are you a born problem solver who loves to figure out how something works?\n- Are you a CI/CD geek who loves all things automation?\n- Do you have a low tolerance for manual work and look to automate everything you can?\nBusiness Operations is leading the DevOps transformation at Mastercard through our tooling and by being an advocate for change & standards throughout the development, quality, release, and product organizations. We need team members with an appetite for change and pushing the boundaries of what can be done with automation. Experience in working across development, operations, and product teams to prioritize needs and to build relationships is a must.\nMission\nThe role of business operations is to be the production readiness steward for the platform. This is accomplished by closely partnering with developers to design, build, implement, and support technology services. A business operations engineer will ensure operational criteria like system availability, capacity, performance, monitoring, self-healing, and deployment automation are implemented throughout the delivery process. Business Operations plays a key role in leading the DevOps transformation at Mastercard through our tooling and by being an advocate for change and standards throughout the development, quality, release, and product organizations.\nWe accomplish this transformation through supporting daily operations with a hyper focus on triage and then root cause by understanding the business impact of our products. The goal of every biz ops team is to shift left to be more proactive and upfront in the development process, and to proactively manage production and change activities to maximize customer experience, and increase the overall value of supported applications. Biz Ops teams also focus on risk management by tying all our activities together with an overarching responsibility for compliance and risk mitigation across all our environments. A biz ops focus is also on streamlining and standardizing traditional application specific support activities and centralizing points of interaction for both internal and external partners by communicating effectively with all key stakeholders.\nUltimately, the role of biz ops is to align Product and Customer Focused priorities with Operational needs. We regularly review our run state not only from an internal perspective, but also understanding and providing the feedback loop to our development partners on how we can improve the customer experience of our applications.\nResponsibilities\nFor all team members:\nEngage in and improve the whole lifecycle of services-from inception and design, through deployment, operation and refinement.\nAnalyze ITSM activities of the platform and provide feedback loop to development teams on operational gaps or resiliency concerns\nSupport services before they go live through activities such as system design consulting, capacity planning and launch reviews.\nMaintain services once they are live by measuring and monitoring availability, latency and overall system health.\nScale systems sustainably through mechanisms like automation, and evolve systems by pushing for changes that improve reliability and velocity.\nSupport the application CI/CD pipeline for promoting software into higher environments through validation and operational gating, and lead Mastercard in DevOps automation and best practices.\nPractice sustainable incident response and blameless postmortems.\nTake a holistic approach to problem solving, by connecting the dots during a production event thru the various technology stack that makes up the platform, to optimize mean time to recover\nWork with a global team spread across tech hubs in multiple geographies and time zones\nShare knowledge and mentor junior resources For team members supporting the Dev Ops pipeline:\nDesign, implement, and enhance our deployment automation based on Chef. We need proven experience writing chef recipes/cookbooks as well as designing and implementing an overall Chef based release and deployment process.\nUse Jenkins to orchestrate builds as well as link to Sonar, Chef, Maven, Artifactory, etc. to build out the CI/CD pipeline.\nSupport deployments of code into multiple lower environments. Supporting current processes needed with an emphasis on automating everything as soon as possible.\nDesign and implement a Git based code management strategy that will support multiple environment deployments in parallel. Experience with automation for branch management, code promotions, and version management is a plus.\nQualifications\nBS degree in Computer Science or related technical field involving coding (e.g., physics or mathematics), or equivalent practical experience.\nExperience with algorithms, data structures, scripting, pipeline management, and software design.\nSystematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive.\nAbility to help debug and optimize code and automate routine tasks.\nWe support many different stakeholders. Experience in dealing with difficult situations and making decisions with a sense of urgency is needed.\nExperience in one or more of the following is preferred: C, C++, Java, Python, Go, Perl or Ruby.\nInterest in designing, analyzing and troubleshooting large-scale distributed systems.\nWe need team members with an appetite for change and pushing the boundaries of what can be done with automation. Experience in working across development, operations, and product teams to prioritize needs and to build relationships is a must.\nFor work on our dev ops team, engineer with experience in industry standard CI/CDtools like Git/BitBucket, Jenkins, Maven, Artifactory, and Chef. Experience designing and implementing an effective and efficient CI/CD flow that gets code from dev to prod with high quality and minimal manual effort is required\nJob Profile Summary\nProvide technical support for MasterCard’s operations environment. Analyze information to determine MasterCard system performance and areas of improvement.\nAssurance of high availability for administered systems on the defined level\nFull knowledge and understanding of administered systems\nKnowledge of all products and services of administered applications\nCreation and maintenance of production procedures\nAdministering of production environments - monitoring, process and procedures optimization,\nOptimization of production systems - designing and automation of production processes,\nDesigning and assurance for running all cycling administration tasks in production systems\nProactive actions assuring highest possible availability of production systems\nSolving all problems identified in production systems\nSolving all problems raised by clients\nCooperation with internal and external support\nOngoing control of suppliers\nSupport for projects driven by organization\nCooperation with infrastructure team in order to fully optimize and plan all upgrades and patches for production systems\nOngoing self-development\nSharing knowledge and experience across the team\nCapacity control for production systems\n• Periodic measurements and reporting of availability for production system\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 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