Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

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

Position Overview
The Business Experimentation and Optimization (BE&O) teams within Mastercard’s Services organization are building industry-leading software that empowers business users around the world to make data-driven decisions through advanced analytics and experimentation. As we expand our product offerings and modernize our technology stack, we are reimagining how we deliver scalable, cloud-native solutions to our clients.

We are seeking a technically strong Senior Software Engineer to help drive the architecture, design, and development of our next-generation experimentation platform. In this role, you will help define and evolve system architecture and non-functional requirements, including scalability, performance, security, and reliability, ensuring our solutions meet the highest engineering standards. As a Senior SE, you will work closely with cross-functional teams to drive complex technical solutions, lead team-level design, and deliver scalable services, APIs, and analytics-driven capabilities using technologies such as Java, Databricks, cloud platforms, and modern data technologies.

Our teams are small, agile, and empowered to choose the processes that work best for their goals. Every engineer contributes to the full development lifecycle, from ideation and design through implementation and testing, fostering a culture of ownership, innovation, and continuous improvement.

What is the Services organization?

The Services team is a key differentiator for Mastercard, delivering cutting-edge solutions that help our customers grow. Focused on thinking big and scaling rapidly across the globe, this team is responsible for end-to-end solutions for a diverse, global customer base. We combine traditional management consulting with rich data assets and in-house technology to provide clients with powerful insights and tools that drive fact-based decision-making. Centered on data-driven technologies and innovation, our services include consulting, loyalty and marketing programs, business experimentation, and data-informed information and risk management. While specializing in the payments industry, Mastercard Services also partners closely with major retailers, airlines, and other enterprises, leveraging insights drawn from both within and beyond our network.

We are seeking passionate and talented technologists who share our vision of empowering customers to make smarter, data-driven decisions. Join us and help shape the future growth of our team.

Who is Mastercard?

Mastercard is the global technology company behind the world’s fastest payments processing network. We are a vehicle for commerce, a connection to financial systems for the previously excluded, and a technology innovation lab. We ensure every employee has the opportunity to be a part of something bigger and to change lives. We believe as our company grows, so should you.

Position Responsibilities:

As a part of Mastercard Services, you will build innovative products that help businesses around the world unlock more value from their data. As a Senior Software Engineer within BE&O, you will contribute to full-stack, data-intensive, analytics-driven applications that support sophisticated business experimentation and decision-making for some of the world’s largest organizations. You will:

Lead team level system design, including high level design, detailed design, API contracts, data flows, service interactions, integration patterns, and nonfunctional requirements such as scalability, reliability, performance, security, and operability.
Partner with lead engineers and architects to align team level implementations with broader platform architecture, modernization goals, engineering standards, and long term maintainability.
Develop and optimize data intensive applications and analytics capabilities using Databricks, Spark, and related technologies to process and deliver data at scale.
Serve as a hands on technical contributor, designing, coding, testing, debugging, and delivering production quality software across the full engineering lifecycle.
Identify and resolve performance bottlenecks across services, APIs, data processing workloads, and user experiences.
Collaborate with cross-functional teams to translate business requirements into scalable technical solutions.
Mentor junior and midlevel engineers through technical guidance, pairing, code reviews, design feedback, documentation, and knowledge sharing.
Contribute to a collaborative engineering culture by modeling ownership, clear communication, continuous learning, pragmatic decision making, and high standards for software quality.
Improve engineering quality through code reviews, design reviews, automated testing, secure coding practices, observability, performance tuning, CI/CD practices, and production readiness.
Troubleshoot complex issues across application, service, API, data, and cloud layers, driving root cause analysis and implementing durable solutions that improve platform reliability and supportability.

Ideal qualifications include:
6+ years of software engineering experience delivering scalable, high performance, and reliable software in an agile environment.
Strong hands on experience designing and building distributed systems, microservices, RESTful APIs, and cloud native applications.
Strong programming experience with modern engineering stacks such as Java/Spring Boot, TypeScript/React, SQL, and related frameworks and technologies.
Experience with Databricks, Spark, or PySpark is highly desirable, particularly for working with data pipelines and analytics driven applications.
Experience building or supporting cloud native applications on AWS and/or Azure, with familiarity in CI/CD, containerization, Kubernetes, observability, automated testing, and production support practices.
Demonstrated ability to lead team level design discussions, evaluate technical tradeoffs, and guide implementation through technical influence.
Ability to translate product and business needs into scalable, secure, and maintainable technical solutions.
Strong collaboration and communication skills, with the ability to work effectively across cross-functional teams.
Strong problem solving skills with the ability to work through ambiguity, make sound technical decisions, and drive results through hands on execution.
Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience; an advanced degree is a plus.
Mastercard is an equal opportunity employer that values diversity and inclusion. Applicants will be considered and treated without regard to gender, gender identity, race, color, ethnicity, national origin, religion, sexual orientation, veteran or disabled status, or any other characteristic protected by applicable law. 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 2 days ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer in Ireland vacancy
  •  ...efficient. That said, every hiring decision is made by real Twilions! See 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 talented engineers within our Commerce Platform Team, who... 
    Senior
    Full time
    Work experience placement
    Remote work
    Worldwide

    Twilio

    Ireland
    a month ago
  •  ...We're looking for a collaborative Senior Software Engineer to join our Revenue Engineering team. As a Senior Software Engineer, Revenue Engineering , you'll design, build, and evolve the software and integration services that connect Muck Rack's product with our... 
    Senior
    Full time
    Remote work

    Muck Rack

    Ireland
    27 days ago
  •  ...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer Overview ~ Mastercard Emerging Data Signals is a global product within Mastercard responsible for the delivery of new... 
    Senior
    Full time
    Worldwide

    Mastercard

    Ireland
    5 days ago
  •  ...As a Senior Software Engineer on Coder’s Agentic Engineering team, you’ll build and evolve the systems behind our agentic development experience. You’ll work across the agent harness, integrations, and workflows that connect agents with real development environments... 
    Senior
    Full time
    Remote work

    Coder

    Ireland
    13 days ago
  •  ...design discussions, and on-call rotations for the services you own. What we're looking for ~5+ years of professional software engineering experience, including significant production experience with Go . ~ Deep understanding of Go's concurrency model, including... 
    Senior
    Full time

    Coder

    Ireland
    27 days ago
  •  ...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 applications... 
    Senior
    Full time
    Work at office
    Local area
    Worldwide
    Flexible hours

    SoSafe

    Ireland
    23 days ago
  •  ...methodology. You understand that great products require great culture - you design and implement with respect and kindness across multiple engineering teams. We embrace an empathetic, supportive, and communicative environment pulling from one another's strengths and... 
    Senior
    Full time
    Remote work

    InfluxData

    Ireland
    12 days ago
  •  ...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... 
    Senior
    Full time

    Primer

    Ireland
    a month ago
  • About This Role We are looking for a Senior Shopify Full Stack Developer with deep expertise in the Shopify ecosystem, a strong grasp of headless architecture, and experience leading enterprise-scale development initiatives. You'll be responsible for building scalable,... 
    Senior
    Full time

    Remote Talent LATAM

    Ireland
    a month ago
  •  ...of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice...  ..., and mentoring An ideal candidate has ~6+ years of software engineering experience, with senior-level ownership of production... 
    Senior
    Contract work
    Work from home

    Hopper

    Ireland
    15 days ago
  • Key Responsibilities Complex employee relations (ER) matters Act as a senior HR expert for complex employee relations (ER) matters across your allocated countries, with particular in-depth knowledge across multiple European countries. Provide pragmatic, solutions-focused... 
    Senior
    Full time
    Local area

    Oyster

    Ireland
    a month ago
  •  ...The Role We are looking for Android engineers to build the native Android experience for KIRA's AI Neobank App. This role is for someone who cares about clean user flows, fast performance, product quality and shipping reliable mobile features used by real customers... 
    Full time
    Remote work

    BJAK

    Ireland
    a month ago
  • NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. Must have: Strong hands-on experience of CICS-COBOL programming...
    Work at office
    Remote work
    Flexible hours

    NTT DATA, Inc.

    Ireland
    7 days ago
  •  ...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 time
    Immediate start
    Worldwide

    Mastercard

    Ireland
    2 days ago
  • $178.5k

     ...DuckDuckGo, Design owns quality end to end, and that's where your engineering skills come in. The unique role you will have leverages your...  ...to help grow and shape the role and discipline. As a Senior Design Engineer on the Product Design team you will collaborate... 
    Senior
    Full time
    Work at office

    DuckDuckGo

    Ireland
    21 days ago
  •  ...greatest potential. Title and Summary Lead Site Reliability Engineer Who is Mastercard? At Mastercard technology, we work to connect...  ...support our developers during the application build phase in software run principles that include operational design, automation,... 
    Full time
    Worldwide

    Mastercard

    Ireland
    2 days ago
  • The Opportunity We build Pyroscope , the open-source continuous profiling database behind Grafana Cloud Profiles. Pyroscope gives engineers code-level visibility into how their applications use CPU and memory, down to the specific line of code, and connects that signal... 
    Senior
    Full time
    Shift work

    Grafanalabs

    Ireland
    a month ago
  •  ...About the role We’re looking for a Senior Paid Marketing Strategist to help us rethink how Typeform approaches paid acquisition. You’ll own and grow key channels including TikTok , YouTube , Google Performance Max and Uber Ads , while helping us test new... 
    Senior
    Full time

    Typeform

    Ireland
    24 days ago
  •  ...About the Role The Racing Post is looking for an exceptional senior journalist to join our award-winning editorial team. You will be responsible for delivering exclusive stories on Irish horseracing, covering the sport on and off the track. As an experienced, accomplished... 
    Senior
    Full time
    Work at office

    Spotlight Sports Group

    Ireland
    15 days ago
  •  ...realize their greatest potential. Title and Summary Director, Software Engineering Job Summary: Leads major projects and delivers quality...  ...and creative problem solving. Make presentations to the Senior Management, Business Owners and other Stakeholders and help... 
    Full time
    Worldwide

    Mastercard

    Ireland
    2 days ago
  •  ...We are seeking a commercially minded Senior Legal Counsel to join our growing legal team and support the company's global sales organisation...  ...for a confident, adaptable lawyer who thrives in a fast-paced software environment, enjoys tackling complex negotiations, and is... 
    Senior
    Full time
    Contract work

    Veeamsoftware

    Ireland
    a month ago
  • NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. Summary of Role: Bring a good understanding of the Lending domain...
    Senior
    Work at office
    Remote work
    Flexible hours

    NTT DATA, Inc.

    Ireland
    more than 2 months ago
  • 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... 
    Full time

    Lastpass

    Ireland
    a month ago
  •  ...the job We're looking for an experienced, technically strong Engineering Manager to lead our Voice Media team. You'll drive the technical...  ...communications technology. Responsibilities Lead a team of senior engineers developing Twilio's next-generation media processing... 
    Senior
    Full time

    Twilio

    Ireland
    a month 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... 
    Work at office
    Remote work
    Flexible hours

    NTT DATA, Inc.

    Ireland
    6 days ago
  •  ...responsibilities will include working closely with members of the backend team and Integrations team to develop features together. Engineers at ClickUp are also responsible for the quality of their own code, so you will work with a QA counterpart to ensure all edge cases... 
    Full time

    ClickUp

    Ireland
    22 days ago
  • About the role We are looking for a Senior Product Manager to own and evolve Create & Design, the product where every Typeform begins. Every customer starts here. The builder is where ideas become forms, where brands come to life, and where our promise of beautifully designed... 
    Senior
    Full time

    Typeform

    Ireland
    a month ago
  •  ...and internal teams, shaping and optimizing our global benefits provisions across a diverse portfolio of international markets. As a Senior Specialist , you operate with a high degree of autonomy and commercial acumen. You are the vital connector between our global... 
    Senior
    Contract work

    Oyster

    Ireland
    a month ago
  •  ...stack, Tines is vendor-agnostic integrating with any API-enabled service. This flexibility enables our customers to achieve their highest-priority goals faster. And because Tines is secure and private by design, it’s popular with security, IT, engineering, finance, an...
    Senior
    Full time

    Tines

    Ireland
    a month ago
  • An overview of this role As a Senior Benefits Analyst on GitLab's Total Rewards team, you'll help design, administer, and improve our global benefits programs. You'll combine hands-on benefits operations with program assessment, vendor and broker partnerships, and cross... 
    Senior
    Full time
    Local area

    GitLab

    Ireland
    a month ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!