Find Sr. software engineer network Jobs in Dublin, D

Senior Software Engineer (SDET)
Mastercard —Dublin, County Dublin
- Full-time
- Java
- Master's degree
- Agile
1d
Technology Infrastructure Assistant Vice President
Sumitomo Mitsui Banking Corporation —Dublin, County Dublin
- €57,000–€107,000 a year
- Weekend availability
- Hybrid work
- IT
- Communication skills
- Annual leave
Senior Data Science Engineer
Verizon —Dublin, County Dublin
- Computer Science
- Java
- Master's degree
5h
Product Manager – Compliance Digital Tools, AWS Environmental
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- Engineering
- System design
- AWS
1d
Mechanical Design Engineer
Tetra Tech —Dublin, County Dublin
- Full-time
- AutoCAD
- English
- In-person
Senior Data Center Power Protection Controls Engineering
Google —Dublin, County Dublin
- €110,000–€112,000 a year
- Full-time
- Engineering
- Master's degree
- Bachelor's degree
6d
Senior Power Systems Engineer - Dublin or Cork
ENGIE —DUBLIN 2, County Dublin
- Hybrid work
- Engineering
- Master's degree
- Bachelor's degree
- Annual leave
Industrial Placement Student - Ground Engineering
AECOM —Dublin, County Dublin
- Hybrid work
- AutoCAD
- English
- Microsoft Office
Senior Power Systems Engineer - Dublin or Cork
Tractebel —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Engineering
- Master's degree
- Bachelor's degree
- Annual leave
Senior Cloud Networking Manager
eBay Inc. —Dublin, County Dublin
- Full-time
- Computer Science
- Master's degree
- Bachelor's degree
Senior Traffic Management Coordinator
SYSTRA —Dublin, County Dublin
- Hybrid work
- AutoCAD
- Engineering
- Bachelor's degree
5d
Senior Security Service Engineer
GALLANT SECURITY SYSTEMS LIMITED —Dublin, County Dublin
- From €50,000 a year
- Full-time
- Engineering
- Windows
- Analysis skills
Quick apply
Rail Design Engineers, Project Managers & CAD/BIM Professionals, London
Amey Ltd —DUBLIN 1, County Dublin
- Hybrid work
- CAD
- System design
- Project management
Quick apply
Principal Mechanical Engineer
Tetra Tech —Dublin, County Dublin
- Part-time
- Manufacturing
- Leadership
- Communication skills
Principal Cybersecurity Architect
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- AWS
- Software development
- AI
Senior ML Science Manager
Intercom —Dublin, County Dublin
- Hybrid work
- Doctoral degree
- Research
- Master's degree
- Work from home
Senior Regional Environmental Manager – EMEA, AWS Environmental
Amazon Data Services Ireland Limited - A65 —Dublin, County Dublin
- Full-time
- AWS
- Bachelor's degree
- Communication skills
Senior Geotechnical Engineer
Jacobs —Dublin, County Dublin
- Hybrid work
- AutoCAD
- In-person
- Civil Engineering
Senior Process Safety Consultant
PM Group —Dublin, County Dublin
- Bachelor's degree
- Communication skills
Geotechnical Engineer
SLR Consulting —Dublin, County Dublin
- Full-time
- Hybrid work
- CAD
- Project management
- Bachelor's degree
- Annual leave
- Employee assistance program

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Senior Software Engineer (SDET)

Mastercard -
Dublin, County Dublin

Apply Now

Job details

Full-time
1 day ago

Qualifications

CI/CD
Law
Selenium
Java
Master's degree
Distributed systems
REST
Agile
UI
AI
Communication skills
Python

Full job 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 Software Engineer (SDET)

Senior Software Engineer in Test (SDET)
Overview:

Who is Mastercard?

Mastercard is a global technology company in the payments industry. Our mission is 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 realise their greatest potential.

Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.

Role Overview

The CNPF Data & AI organisation is looking for a Senior Software Engineer in Test (SDET) to help build and assure the next generation of intelligent, agentic products and platforms. This is a hands-on senior engineering role for someone who combines deep automation expertise with strong software engineering fundamentals and practical experience testing AI-powered and agent-based systems in production-grade environments.

This role is ideal for a builder who enjoys solving complex quality challenges, designing scalable automation strategies, and raising the engineering bar across teams. We are particularly interested in candidates who can apply innovative thinking, strong ownership, and modern quality engineering practices to validate agentic applications, LLM-powered workflows, APIs, user journeys, and end-to-end platform reliability.

We are seeking a talented Senior Software Development Engineer in Test (SDET) to define and implement an effective automation and quality strategy within an Agile team. This role will validate application functionality, resilience, and business outcomes using modern testing methodologies, strong engineering discipline, and best practices in continuous integration and delivery.

Role:

Own end-to-end quality engineering for agentic applications, intelligent workflows, APIs, user interfaces, and supporting platform services.
Design, develop, and maintain robust automation frameworks for UI, API, integration, regression, and system-level testing.
Define test strategies for AI and agent-based systems, including workflow validation, response quality, tool usage, guardrails, reliability, and failure handling.
Build automated quality gates for CI/CD pipelines and ensure high-confidence releases through continuous testing.
Partner closely with software engineers, product managers, architects, and data/AI teams to ensure quality is built in from design through production.
Create meaningful test data, validate edge cases, identify defects early, and drive root cause analysis through to resolution.
Evaluate non-functional characteristics such as performance, reliability, observability, resilience, and scalability.
Contribute innovative ideas that improve testability, developer productivity, release confidence, and engineering effectiveness.
Demonstrate strong ownership by proactively identifying gaps, driving improvements, and mentoring team members on automation and quality best practices.

About You

Strong experience in software test automation, automation framework design, and code quality practices.
Proven ability to test modern distributed systems, APIs, event-driven architectures, and user-facing applications.
Experience validating AI-enabled or agentic applications, including prompt/workflow validation, output quality assessment, and scenario-based testing.
Strong understanding of Agile development, shift-left testing, continuous integration, and continuous delivery.
Comfortable working across ambiguity and applying innovative thinking to solve new and evolving quality challenges.
Strong communication, collaboration, and stakeholder management skills, with a bias for action and accountability.

Technical Skills

Strong programming skills in Java, Python, or similar languages used for automation and test engineering.
Hands-on experience with API and UI automation frameworks such as Playwright, Selenium, Cypress, REST Assured, or equivalent.
Experience integrating automated tests into CI/CD pipelines and quality gates.
Understanding of test approaches for LLMs, retrieval workflows, agent orchestration, and non-deterministic systems is highly desirable.
Familiarity with observability, logging, test data management, performance testing, and service virtualization is a plus.

Leadership & Mindset

Innovative thinker who challenges conventional approaches and introduces better ways to assure quality at scale.
Strong sense of ownership, accountability, and follow-through from test strategy through delivery outcomes.
Able to influence quality culture across teams and mentor others in modern automation and engineering excellence.

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.

Apply Now

Refine Your Search

sr. software engineer network jobs in dublin, d

Senior Software Engineer (SDET)

Technology Infrastructure Assistant Vice President

Senior Data Science Engineer

Product Manager – Compliance Digital Tools, AWS Environmental

Mechanical Design Engineer

Senior Data Center Power Protection Controls Engineering

Senior Power Systems Engineer - Dublin or Cork

Industrial Placement Student - Ground Engineering

Senior Power Systems Engineer - Dublin or Cork

Senior Cloud Networking Manager

Senior Traffic Management Coordinator

Senior Security Service Engineer

Rail Design Engineers, Project Managers & CAD/BIM Professionals, London

Principal Mechanical Engineer

Principal Cybersecurity Architect

Senior ML Science Manager

Senior Regional Environmental Manager – EMEA, AWS Environmental

Senior Geotechnical Engineer

Senior Process Safety Consultant

Geotechnical Engineer

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