Principal Site Reliability Engineer
Mastercard
Principal Site Reliability Engineer
Who is Mastercard?
At Mastercard technology, we work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation, and delivers better business results.
What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable. And we need the best people to do it. Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day. Working at Mastercard means being part of a unique culture. Inclusive and diverse, a rich collaboration of ideas and perspectives. A place that celebrates your strengths, values your experiences, and offers you the flexibility to shape a career across disciplines and continents. And the opportunity to work alongside experts and leaders at every level of the business, improving what exists, and inventing what’s next. About the Role
The Business Operations team is seeking a Principal Site Reliability Engineer.
The role of Business Operations Organization is to be the production readiness steward for Mastercard products. As a Business Operations SRE, we are responsible for ensuring that our platform is stable and healthy. We break down barriers to run our products by fostering developer run ownership and empowering developers to build resilient products. We support our developers during the application build phase in software run principals that includes operational design, automation, capacity planning, monitoring that leads to fault-tolerant, scalable products. We see the big picture and help create and enforce operations standards while facilitating an agile and learning culture. We are seeking a highly motivated and experienced Principal Site Reliability Engineer to join our growing team. You will play a critical role in ensuring the reliability, scalability, and performance of our applications, supporting essential services that power Mastercard's global operations. As a thought leader in your field, you will bring technical expertise, a passion for automation, and the ability to mentor. We support daily operations with a hyper focus on triage, root cause by understanding the business impact of our products and subsequently performing blameless post-mortems. The goal of every Business Operations team is to engage early in the development lifecycle 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. Business Operations 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. Ultimately, the role of Business Operations is to align Product and Customer Focused priorities with Operational needs by providing continuous feedback throughout the lifecycle. Team Specific Skills:
It is not expected that any single candidate would have expertise across all these areas, but a Site Reliability
engineer will spend time throughout their career with all of these aspects of the role:
• Operational Readiness Architect:
o Serve as the primary contact responsible for the overall application health,
performance, and capacity
o Support services before they go live through activities such as system design
consulting, capacity planning and launch reviews.
o Partner with the development and product team of a new application to establish
the right monitoring and alerting strategy and create the framework to achieve zero
downtime during deployment.
• Site Reliability Engineering:
o Performs operability and resilience design and implements and maintains highly
reliable and scalable infrastructure.
o Perform root cause analysis of incidents and collaborate with development teams to
resolve issues.
o Stay up to date with the latest technologies and trends in SRE and cloud computing.
o Participate in on-call rotations and be available to respond to critical incidents.
o Complete end-to-end run ownership of the product.
Practice sustainable incident response and blameless post-mortems while taking a
holistic approach to problem solving and optimizing time to recover.
o Automate data-driven alerts to proactively escalate issues. Work with development
teams to establish SLOs and improve reliability.
• DevOps/Automation:
o Tackle complex development, automation, and business process problems. o Support 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.
o Performs operational and resilience Design and implements solutions for capacity
planning and performance optimization.
o Increase automation and tooling to reduce toil and manual intervention
• ITSM Practices:
o Analyses ITSM activities of the platform and provide feedback loop to development
teams on operational gaps or resiliency concerns Role qualifications:
The ideal candidate will have experience in many of these areas:
• BS degree in Computer Science or related technical field involving coding (e.g., physics or
mathematics), or equivalent practical experience.
• Strong understanding of DevOps principles, practices along with configuration management.
• Experience in operational and resilience designing, building, and operating large-scale,
distributed systems.
• Appetite for change and pushing the boundaries of what can be done with automation. Be
curious about new technology, infrastructure, and practices to scale our architecture and
prepare for future growth.
• Experience with algorithms, data structures, scripting, pipeline management, and software
design.
• Systematic problem-solving approach, analytical, coupled with strong communication skills
and a sense of ownership and drive.
• Interest in designing, analysing, and troubleshooting large-scale distributed systems.
• Strong leadership and mentoring skills.
• A passion for observability, automation and continuous improvement.
• Willingness and ability to learn and take on challenging opportunities and to work as a
member of matrix based diverse and geographically distributed project team.
• Ability to balance doing things right with fixing things quickly. Flexible and pragmatic, while
working towards improving the long-term health of the system.
• Comfortable collaborating with cross-functional teams to ensure that expected system
behaviour is understood and monitoring exists to detect anomalies. 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.
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Principal Site Reliability Engineer Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that...PrincipalFull timeWorldwideFlexible hours
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Site Reliability Engineer I Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that benefits...SuggestedFull timeWorldwide
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead, Site Reliability Engineer (Infrastructure operations) Lead SRE Engineer, Site Reliability Engineering Our Purpose: Mastercard powers...SuggestedFull timeWorldwide
- As a Principal Cloud Security Engineer at LastPass, you will partner with DevOps and CI/CD engineers and our Architects team to ensure security best practices are embedded across our cloud infrastructure. We are looking for an experienced security engineering leader with...PrincipalFull time
- ...businesses and governments realize their greatest potential. Title and Summary Principal Platform Architect Overview Infrastructure Design Services is a team of Technology Architects and Engineers responsible for defining and governing the enterprise infrastructure...PrincipalFull timeWorldwide
- ...We're looking for a collaborative Senior Software Engineer to join our Revenue Engineering team. As a Senior Software Engineer,... ...Operations, Finance, and Salesforce implementation partners to deliver reliable, scalable solutions. As a senior member of the team, you'll...Full timeRemote work
- ...their greatest potential. Title and Summary Senior Software Engineer Senior Software Engineer Overview: Who is Mastercard?... ...platform innovation—turning emerging technologies into secure, reliable, and reusable capabilities that create measurable business value...Full timeWorldwide
- ...yourself at Twilio Join the team as Twilio’s next Senior Software Engineer. About the job This position will be part of a team of... ...to architecture and design (architecture, design patterns, reliability and scaling) of new and current systems. ~ Experience...Full timeWork experience placementRemote workWorldwide
- ...potential. Title and Summary Senior Software Engineer Senior Software Engineer –... ...performance, observability, capacity planning, reliability, and continuous improvement. You will... ...engineering, scalability, or site reliability. • Experience supporting mission...Full timeWorldwide
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer Overview The InControl platform is a fundamental part of Mastercard's Commercial Solutions, enabling some of our largest...Full timeWork experience placementWorldwide
- ...Arista provides global enterprises with a definitive competitive edge. Consistently decorated with prestigious awards—including Best Engineering Team, Best Company for Diversity, and top rankings for Work-Life Balance—Arista fosters a highly inclusive environment where...Permanent employmentFull timeRemote workHome officeShift work
- ...realize their greatest potential. Title and Summary Senior AI Engineer-1 Who is Mastercard? Mastercard is a global technology... ...Ensure AI solutions meet Mastercard standards for performance, reliability, security and governance Collaborate with platform, security...Full timeWorldwide
- QCP is Asia's leading digital asset partner, empowering clients to seamlessly integrate digital assets into their portfolios. We offer a comprehensive range of solutions - from spot on/off ramping and fixed income strategies to vanilla options and bespoke exotics. ...Full timeCasual workFlexible hours
- ...realize their greatest potential. Title and Summary Software Engineer – DevOps / SRE Overview The Mastercard Authentication... ...in Dublin is hiring a Software Engineer II with emphasis on site reliability to support and evolve our Authentication and Post-Authentication...Full timeWorldwide
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead, Platform Engineer Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power...Full timeWork experience placementWorldwide
- ...realize their greatest potential. Title and Summary Lead Software Engineer Overview Mastercard is seeking a Lead Software Engineer... ...This role is responsible for delivering secure, scalable, and reliable software systems that enable teams to consume AI capabilities...Full timeWorldwide
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer Overview Be part of the Operations & Technology Fraud Products team developing new capabilities for MasterCard's Decision...Full timeWorldwide
- ...realize their greatest potential. Title and Summary Lead Software Engineer - Frontend (UI) Overview Who We Are — Mastercard... ...engineering quality: architecture reviews, design standards, reliability practices, and secure coding patterns. • Strong experience leading...Full timeWorldwide
- ...projects from early ambiguity through production. Raise the engineering bar through design reviews, code reviews, and technical... ...and Design on clear, useful agent experiences. Improve the reliability, performance, and operability of agentic systems. What we’...Full time
- ...This role is for strong mobile builders who can ship clean, reliable and intuitive mobile experiences, whether their main strength... ...contribution clearly. People who need heavy guidance for every task. Engineers who move slowly in a high-growth environment....Full time
- ...via Claude, return accurate, contextually aware results. You are the steward of how well our BI tool thinks. Partner with data engineering to optimise performance, and build what's missing Own and maintain the semantic data layer and transformation logic so that...Full time
- ...services that help people, businesses and governments realize their greatest potential. Title and Summary Foundry R&D Software Engineer II Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power...Full timeWorldwide
- ..., businesses and governments realize their greatest potential. Title and Summary Vice President & Founding Technology Lead, AI Engineering & Consulting Platforms Overview: At Mastercard, our industry expertise is enhanced by our commitment to being a force for good...Full timeWorldwide
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead AI Engineer Overview: We are seeking a highly skilled and visionary Lead Data Scientist to spearhead the development of advanced AI solutions...Full timeWorldwide
- ...coderd . Improve database migration safety and upgrade reliability through schema compatibility, background migrations, and safe... ...What we're looking for ~5+ years of professional software engineering experience, including significant production experience with...Full time
- ...and services that help people, businesses and governments realize their greatest potential. Title and Summary Manager, Software Engineering Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power...Full timeWorldwide
- ...and services that help people, businesses and governments realize their greatest potential. Title and Summary Manager, Software Engineering • The Decision Management program enables intelligent decision based products through streaming analytics with the ability to...Full timeWork at officeWorldwide
- ...their greatest potential. Title and Summary Manager, Software Engineering Overview Authentication Decisioning is a strategic... ...Ensure operational excellence through strong ownership of reliability, performance, availability and incident management. Champion...Full timeWorldwide
- ...and services that help people, businesses and governments realize their greatest potential. Title and Summary Director, Software Engineering Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power...Full timeWorldwide
- .... - we invite you to be part of the solution! Here's how you'll make a difference: Develop, monitor and maintain scalable and reliable fullstack software systems using Typescript (React, Node) in an AWS environment Collaborate on the architecture of complex web...Full timeWork at officeLocal areaWorldwideFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Principal Site Reliability Engineer. Be the first to apply!
- data center chief engineer Ireland
- chief engineer Ireland
- principal engineer Ireland
- engineering director Ireland
- director software engineering Ireland
- principal developer Ireland
- general engineer Ireland
- hotel chief engineer Ireland
- on-site clinical research associate (traveling/remote) Ireland
- senior principal engineer


