Senior BizOps Engineer Job Listing at Mastercard in Warsaw, Masovian Voivodeship (Job ID R-265446)

Description

Our Purpose

Mastercard 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.

Title and Summary

Senior BizOps Engineer Who is Mastercard?
Mastercard Technology connects and powers an inclusive digital economy, making transactions safe, simple, and accessible. Our innovations support individuals, financial institutions, governments, and businesses in realizing their potential. We foster a culture of inclusion, respect for diversity, and collaboration, believing that our differences make us a stronger team and drive better business results.
Technology at Mastercard
We create technologies that shape the future of the digital economy more connected, secure, and sustainable. We seek talented technologists who thrive on the challenges of a global network, building critical systems and products that power commerce worldwide. Working at Mastercard means joining a unique, inclusive culture, collaborating across disciplines, and having the flexibility to shape your career.
About the Role
The Biz Ops team is looking for a Senior Site Reliability Engineer (SRE). Biz Ops is responsible for production readiness of Mastercard products, ensuring platform stability and health. As an SRE, you will empower developers to build resilient products, support operational design, automation, capacity planning, and monitoring. You help set and enforce operational standards and foster an agile, learning culture.
Key Responsibilities:
• Ensure reliability, scalability, and performance of Mastercard applications.
• Support daily operations with a focus on triage, root cause analysis, and blameless post-mortems.
• Engage early in the development lifecycle to proactively manage production and change activities.
• Manage risk, compliance, and security across all environments.
• Align product and customer priorities with operational needs through continuous feedback.
About the Program You Support:
Mastercard Processing enables seamless, secure, and reliable payment transactions globally. It provides comprehensive solutions for transaction authorization, clearing, settlement, and fraud management, supporting various payment types and ensuring compliance with global and local regulations. With billions of transactions processed annually, the platform focuses on resilience, performance, and innovation, including real-time data insights and fraud prevention.
Role qualifications:
• Bachelor's degree in Computer Science or related technical field (e.g., physics, mathematics) or equivalent experience.
• Experience with Way4/OpenWay applications, Oracle/Postgres databases, and financial industry systems.
• Designing, building, and operating large-scale, distributed systems.
• Appetite for change, curiosity about new technologies and automation.
• Knowledge of algorithms, data structures, scripting, pipeline management, and software design.
• Systematic problem-solving, analytical skills, strong communication, ownership, and drive.
• Interest in designing, analyzing, and troubleshooting large-scale systems.
• Strong leadership and mentoring abilities.
• Passion for observability, automation, and continuous improvement.
• Willingness to learn, take on challenges, and work in diverse, geographically distributed teams.
• Ability to balance quick fixes with long-term system health.
• Comfortable collaborating with cross-functional teams to ensure expected system behavior and monitoring.
Team Specific Skills:
ITSM Practices
• Analyze ITSM activities (Incident, Change, Problem, Service Request Management).
• Provide feedback to development teams on operational gaps and resiliency concerns.
Site Reliability Engineering
• Design and implement reliable, scalable infrastructure.
• Perform root cause analysis and collaborate with development teams.
• Stay updated on SRE and cloud computing trends.
• Participate in on-call rotations and respond to critical incidents.
• End-to-end run ownership of products.
• Practice sustainable incident response and blameless post-mortems.
• Automate data-driven alerts and work with development teams to establish SLOs and improve reliability.
Operating Systems and Environment Management
• Proficient in Linux (CLI, directory structure, permissions), process management, resource monitoring (top, htop, vmstat, iostat).
• Basic Windows administration, shell scripting (Bash, PowerShell).
• Ability to create scripts (Bash, Ansible, Python, Perl).
• Manage Linux and Windows instances, create technical documentation.
Log Analysis and Processing
• Search, filter, sort, aggregate, and process logs (grep, awk, sed).
• Event correlation in application and system logs.
Networking and Protocols
• Network traffic analysis (tcpdump, netstat).
• Understanding TCP/IP, DNS, routing, firewalls, load balancers.
• Protocols and API design patterns (TCP, HTTP, TLS, JSON, MTLS, oAuth2).
• High availability and resilience concepts (clustering, failover, scaling).
• F5 load balancer configuration.
DevOps and CI/CD Tools
• Git (repository management, conflict resolution).
• Jenkins (job management).
• Automation and provisioning (Ansible, Chef, Terraform).
• Data search and analysis (Splunk).
• Monitoring tools (Zabbix, Grafana, Dynatrace).
• Documentation tools (Confluence).

Corporate Security Responsibility

All 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:

• Abide by Mastercard's security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

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