Senior Software Engineer
Full-time
Mastercard
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 Software Engineer
Overview
Mastercard is a global technology company in the payments industry, focused on powering an inclusive, digital economy that makes transactions safe, simple, smart, and accessible. Using secure data and networks, our innovations enable individuals, financial institutions, governments, and businesses worldwide to realize their greatest potential. Within Mastercard’s Builders Enablement Program (ONE Division), we are building a standardized, secure, cloud first software delivery ecosystem and delivering a world class developer experience. We are seeking a Senior Software Engineer to design, build, and advance internal developer platforms through modern, data-driven user interfaces. This role requires deep technical expertise, end-to-end ownership, and the ability to lead complex engineering initiatives across architecture, development, and operations. About the Role Software Design & Architecture Lead end-to-end software design and architecture, translating business and system requirements into scalable, reliable, and maintainable solutions Define high- and low-level design artifacts, including APIs, data models, system interactions, and component boundaries Establish and enforce architecture standards, design patterns, and engineering best practices across teams Apply deep knowledge of data structures, algorithms, and distributed system design to solve complex performance and scalability challenges Software Development Excellence Own delivery of robust, secure, and high-performance software across backend platforms and frontend applications (React, TypeScript) Drive engineering excellence in coding standards, modular design, and maintainability Build and enhance internal developer platforms using Backstage or similar frameworks, leveraging plugin-based architectures Develop data-driven user interfaces that surface observability and operational insights Testing Strategy & Quality Engineering Define and implement comprehensive testing strategies, including: Unit testing Integration testing Functional/end-to-end testing Embed automated testing within CI/CD pipelines to enforce quality gates and prevent regressions Ensure systems meet correctness, reliability, and backward compatibility requirements at scale Performance Engineering Lead performance engineering initiatives, including system benchmarking, load testing, and capacity planning Analyze system bottlenecks and optimize latency, throughput, and resource utilization across distributed architectures Ensure applications meet strict performance SLAs in high-volume, mission-critical environments Secure Coding & Compliance Enforce secure coding practices and integrate security into every phase of the SDLC Design systems that meet enterprise security, regulatory, and compliance requirements Partner with security teams to proactively identify and remediate vulnerabilities Troubleshooting & Incident Management Serve as a senior escalation point for complex production issues across distributed systems and user-facing platforms Lead root cause analysis, incident resolution, and postmortem activities Drive systemic improvements to prevent recurring issues and improve system reliability Code Review & Technical Leadership Lead rigorous code reviews, ensuring adherence to best practices in design, performance, security, and maintainability Mentor engineers and elevate team capability in software design, testing, debugging, and operational excellence Provide hands-on guidance in solving high-complexity technical problems across system layers Collaboration & Ownership Partner with product, platform, and business stakeholders to shape technical roadmaps and delivery priorities Own and deliver cross-functional initiatives spanning frontend, backend, and platform engineering Contribute to the Software Engineering Guild by sharing reusable frameworks, patterns, and innovations All About You We are looking for someone who: Demonstrates deep expertise across software development, system design, and architecture Brings a strong foundation in data structures, algorithms, and distributed systems Is equally comfortable working across backend platforms and frontend applications Leads with a quality-first mindset, emphasizing testing, security, and performance Excels at troubleshooting complex systems and driving resolution under pressure Proactively improves operability, reliability, and developer experience Influences technical direction and mentors engineers across teams Qualifications: Extensive experience in software development and system design, with demonstrated ownership of large-scale distributed systems Deep expertise in: Software Design & Software Architecture Data Structures & Algorithms Troubleshooting complex distributed systems Strong hands-on experience with: Unit, Integration, and Functional Testing frameworks and strategies Performance Engineering and system optimization Secure coding practices and application security principles Code reviews and engineering quality standards Operability engineering (observability, monitoring, reliability) Proficiency in modern programming languages (e.g., Java, C#) and frontend development using React and TypeScript Experience building internal developer platforms (Backstage or similar) Experience with plugin-based architectures and integrating DevOps tools Proven ability to build data-driven user interfaces Hands-on experience with AWS (Azure a plus), Kubernetes, and cloud-native technologies Strong experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation) Experience with observability platforms (e.g., Splunk or equivalent) Excellent communication and technical leadership skills Bachelor’s or Master’s degree in Computer Science, Engineering, or related field preferred 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.
Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer in Ireland vacancy
- ...of autonomy and ownership, both as individuals and as a team. Engineers are empowered to make decisions, move quickly, and validate... ...feedback, and cross-functional partnership. We’re looking for a Senior Software (Database) Engineer to help build the underlying storage...SeniorFull timeRemote work
- .... Interns will work from a list of projects and have several senior mentors throughout the programme. Perks : Daily catered lunches... ...Our development team is a highly talented group of versatile software engineers. These engineers are responsible for the design, development...SuggestedSummer workInternship
- ...energy and intelligence by building the world’s only vertically integrated AI infrastructure company from the ground up. As a Software Engineer on the Cloud Availability Platform team, you will help build Conductor—our self-driving control plane designed to predict, decide...SuggestedHourly payFull time
Crusoe
Ireland2 days ago - ...We are seeking a Senior Scientist to design peptide ligands for delivery of RNA therapeutics. This role is an early hire on a growing delivery sciences team. The successful candidate makes major contributions to the ongoing development of the company's next generation...SeniorLive in
Design· Full-time
Ireland28 days ago - ...environments. Maintain and support a complex enterprise database estate across multiple regions and platforms. Participate in software maintenance, upgrades, migrations, and implementation activities. Provide on-call and after-hours support for critical...SuggestedWork at officeRemote workFlexible hours
- ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Software Engineer - Frontend (UI) Overview Who We Are — Mastercard Mastercard is a global technology company in the payments industry, operating...Worldwide
€115k - €130k per year
...productive zone and work from there. About the Role: As a DevOps Engineer at Sardine, you'll play a critical role in evolving our... ...What you'll need: ~6+ years of experience in DevOps, SRE, or software engineering roles, ideally in high-growth startup environments...Remote jobWorldwideHome officeFlexible hours- ...governments realize their greatest potential. Title and Summary Lead Software Engineer Position Overview The Business Experimentation and... ...: At Mastercard Services, you will serve as a senior technical leader and hands-on engineer for BE&O’s next-generation...Full timeImmediate startWorldwide
- ...ROLE ** We are looking for an exceptional candidate to join our development team. Our team is a talented group of versatile software engineers who collaborate with the entire Virtu group to build the next generation of web-based trading tools for our fast paced firm....Work at officeRemote workWorldwide
- ...communication skills with the ability to communicate technical issues and strategy to both technical and non-technical audiences at senior levels within the bank. Interpersonal skills - collaboration, facilitation, and negotiation skills ~ Broad understanding of...SeniorWork at officeRemote workFlexible hours
- ...greatest potential. Title and Summary Lead, Site Reliability Engineer (Infrastructure operations) Lead SRE Engineer, Site Reliability... .... When patterns of failure or compatibility issues between software and infrastructure emerge, develop and implement strategies to...Worldwide
- ...that’s okay. If this role excites you, we’d love you to raise your hand for what could be a truly career-defining opportunity. Senior Engineering Manager, Grafana Frontend The Opportunity: Grafana is an open-source observability product and a platform that teams and...SeniorFull timeRemote work
- ...realize their greatest potential. Title and Summary Manager, Software Engineering In Control For Commercial Payments is a system within the... ...experience leading a team of developers, communicating with senior management/customer and solid experience in a development/...Worldwide
- ...products 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...Worldwide
- ...realize their greatest potential. Title and Summary Manager, Software Engineering Who is Mastercard? Mastercard is a global technology... ...Communication of status/progress to product teams/customers/senior management • Contribute to the knowledge of the software...Remote workWorldwide
- ...want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. Overview We are looking to recruit a Senior Business Analyst to join our Financial Services Advisory Practice, working on a wide range of projects/programmes. The individual...SeniorWork at officeRemote workFlexible hours
- ...greatest potential. Title and Summary Senior Technical Program Manager Overview... ...projects you lead for Mastercard will deliver software operating at massive scale requiring a... ...with business teams, architects, engineers, and designers. • You can communicate...SeniorWork experience placementWorldwide
- ...governments realize their greatest potential. Title and Summary Senior Information Security Engineer Who is Mastercard? Mastercard is a global... ...proposed designs to determine feasibility; work with software development teams to define alternatives and recommend optimal...SeniorWork experience placementWorldwide
- ...thinking organization, apply now. We are currently seeking a Senior Techno Functional Business Analyst to join our team in Dublin,... ..., and use cases. Collaborate with solution architects, engineering teams, data teams, and testing teams to design and deliver technology...SeniorWork at officeRemote workFlexible hours
- ...Job Title: Senior Deal Operations Analyst Location: Ireland Team Description The Deal Operations team partners closely with Sales, Finance, Revenue Operations, Legal, Customer Success, and Business Systems to ensure the seamless execution of commercial transactions...SeniorRemote jobVisa sponsorship
- ...financial opportunity. About the role LemFi is the financial engine for people the world wasn't built to serve — and nowhere is that... ...than for the Nigerian diaspora across Europe. We're hiring a Senior Growth Manager to own that corridor: driving user acquisition, building...SeniorRemote jobLocal areaImmediate start
- ...structured "System View" to drive major outcomes. You will be the engine of execution. You will operationalize frameworks on the ground,... ...and familiarity with industry-standard project management software (e. g. , Jira, Confluence, Google Suite). Preferred Requirements...Full timeLocal areaRemote work
- ...Title and Summary Vice President & Founding Technology Lead, AI Engineering & Consulting Platforms Overview: At Mastercard, our... ...Lead, AI Engineering & Consulting Platforms will serve as the senior technology partner accelerating our consulting transformation...Worldwide
- ...need, understand what they're reading, and trust what they're building on. You'll work at the intersection of product, design, and engineering, embedded in a team that takes developer experience seriously. What You'll Do 1. API Product Storytelling -- Embed with...Worldwide
- ...tuned to meet the growing demands of our business. Our Systems Engineers are responsible for designing, building and supporting these servers... ...mobility Direct exposure to the decision makers and senior leaders on the business side A company that’s investing a sizable...WorldwideShift work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!
Related searches
- software developer fintech Ireland
- startup software engineer Ireland
- financial software developer Ireland
- software engineer Ireland
- software engineer amazon Ireland
- senior robotics software engineer Ireland
- cybersecurity software engineer Ireland
- software engineer healthcare Ireland
- agile software developer Ireland
- software developer Ireland