Find Principal systems engineer Jobs in Dublin, D

Principal DevOps Engineer - Decision Management Platform
Mastercard —Dublin, County Dublin
- Full-time
- DevOps
- Java
- AWS
Principal Software Engineer, AWS Lambda
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- C++
Senior/Principal Software Engineer
RxSense —Dublin, County Dublin
- Java
- AWS
- Agile
Principal Data Product Engineer — Data Ontology & Metadata
Alexion Pharmaceuticals,Inc. —Dublin, County Dublin
- Doctoral degree
- Computer Science
- Master's degree
4d
Principal Data Product Engineer — Data Ontology & Metadata
AstraZeneca —Dublin, County Dublin
- Doctoral degree
- Computer Science
- Master's degree
4d
Principal Engineer - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- AI
5d
Principal Information Security Engineer - Blockchain Technology
Mastercard —Dublin, County Dublin
- Full-time
- Computer Science
- Bachelor's degree
- No degree
Software Development Engineer, ML Navigators
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- System design
- Java
5d
Senior Cost Engineer
Turner & Townsend —Dublin, County Dublin
- Full-time
- Data analysis skills
- Analysis skills
- Project management
- Annual leave
Quick apply
Senior Project Manager
EMR Integrated Solutions —Dunboyne, County Meath
- €65,487–€68,761 a year
- Full-time
- Hybrid work
- Engineering
- Project management
- Bachelor's degree
Quick apply
12d
Sr. Product Design Engineer, Data Center Engineering - Electrical Products and Services
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- Engineering
- Maintenance
- AWS
Engineering Manager - Pay
Phorest —DUBLIN 1, County Dublin
- Remote
- Computer Science
- System design
- Java
- Employee assistance program
Quick apply
Staff Engineer, Site Reliability
LearnUpon —Dublin, County Dublin
- On call
- AWS
- AI
- Annual leave
Staff Engineer
Rain Technologies Inc. —Dublin, County Dublin
- Full-time
- Remote
- Azure
- System design
- SQL
Quick apply
Principal Security Engineer, AWS Security
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Leadership
- Python
Staff Site Reliability Engineer
Replit —Dublin, County Dublin
- Full-time
- Remote
- Mentoring
- Communication skills
- Python
- Life insurance
Principal Electrical Engineer
AtkinsRéalis —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Project management
- Electrical Engineering
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Lead DevOps Engineer
Elwood Roberts —Dublin, County Dublin
- €500–€600 a day
- Full-time
- DevOps
- Java
- Python
Quick apply
Senior/Principal System Safety Engineer - Rail
WSP —Dublin, County Dublin
- Part-time
- Hybrid work
- Work from home
- Gym membership

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Principal DevOps Engineer - Decision Management Platform

Mastercard -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

CI/CD
Kubernetes
DevOps
Java
Bash (Unix shell)
AWS
Docker
Distributed systems
Terraform
Splunk
Scripting
GitHub
Linux
Leadership
Jenkins
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

Principal DevOps Engineer - Decision Management Platform

Overview

Join Mastercard’s Services Technology organization as a DevOps Principal Engineer for the Decision Management Program (DMP)—a patented, real-time decisioning platform that powers fraud prevention, risk scoring, and identity verification across the global payments network. The platform processes billions of transactions each month, consistently delivering results in milliseconds to support mission critical business solutions.

Role

In this role you will design systems to enable deployment and management of critical high-volume, low-latency financial systems into public and private cloud environments. You will work with global engineering teams to drive DevOps initiatives across the platform utilizing a highly scalable architecture leveraging In-Memory data grids and real time processing technologies.

This is a unique opportunity to shape the future of Mastercard’s decisioning ecosystem—advancing innovative, high‑performance solutions and driving engineering and operational excellence across a critical real‑time platform

Architect, provision, and manage public and on-prem cloud infrastructure, including containerized and virtualized systems
Design, build, and optimize CI/CD pipelines to enable fast, safe, and repeatable delivery of complex distributed systems across a global network of data centres.
Collaborate cross-functionally with R&D teams to design scalable systems, troubleshoot complex issues, and support new product initiatives.
Champion Infrastructure as Code principles using tools like Terraform and CloudFormation.
Drive observability and reliability through monitoring, logging, and alerting systems (Prometheus, Grafana, Druid, Splunk etc.).
Foster innovation and continuous improvement, adopting new tools and practices to increase efficiency, scalability, and cost optimization.
Contribute to hands-on coding and automation efforts when needed — lead by example.
Partner with stakeholders to align DevOps initiatives with business objectives, including uptime, deployment velocity, and cost efficiency.

All About You

8+ years of experience in Software Engineering and DevOps roles, including at least 2 years in a technical leadership capacity.
Strong Linux systems administration background
Deep familiarity with AWS cloud environments.
Proven experience with container orchestration and tooling (Kubernetes, Helm, Docker Compose).
Hands-on experience with infrastructure-as-code (Terraform, CloudFormation).
Strong understanding of CI/CD pipelines (GitHub Actions, Jenkins, XLR etc.).
Proficient in scripting and programming (Bash, Python, Java).
Experience with monitoring and observability platforms (Prometheus, Grafana, Druid, Splunk, Loki).
Excellent communication skills and the ability to work effectively with Developers, QE, Operations and support teams.
Experience with FinOps or cost optimization in cloud environments
Demonstrated ownership mindset, prioritization skills, and ability to thrive in a fast-paced, multi-tasking environment.

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

principal systems engineer jobs in dublin, d

Principal DevOps Engineer - Decision Management Platform

Principal Software Engineer, AWS Lambda

Senior/Principal Software Engineer

Principal Data Product Engineer — Data Ontology & Metadata

Principal Data Product Engineer — Data Ontology & Metadata

Principal Engineer - Commerce Hub

Principal Information Security Engineer - Blockchain Technology

Software Development Engineer, ML Navigators

Senior Cost Engineer

Senior Project Manager

Sr. Product Design Engineer, Data Center Engineering - Electrical Products and Services

Engineering Manager - Pay

Staff Engineer, Site Reliability

Staff Engineer

Principal Security Engineer, AWS Security

Staff Site Reliability Engineer

Principal Electrical Engineer

Principal Architect (Remote – Ireland)

Lead DevOps Engineer

Senior/Principal System Safety Engineer - Rail

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