Find Principal engineer Jobs in Blackrock, D

Principal Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- AI
- Leadership
Principal Electrical Engineer
AtkinsRéalis —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Project management
- Electrical Engineering
Electrical Engineer (Principal/Senior)
Mott MacDonald —Dublin, County Dublin
- Full-time
- Hybrid work
- System design
- English
- Master's degree
- Annual leave
- Life insurance
Principal Security Engineer, AWS Security
Amazon Data Services Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Leadership
- Python
Principal Software Engineer, AWS Lambda
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- C++
Principal Information Security Engineer - Blockchain Technology
Mastercard —Dublin, County Dublin
- Full-time
- Computer Science
- Bachelor's degree
- No degree
Software Development Engineer II, Transactional Data Storage
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Principal Data Scientist
iCims —DUBLIN 2, County Dublin
- Full-time
- Computer Science
- Research
- Master's degree
- Annual leave
- Life insurance
Lead Senior Geotechnical Engineer
Amey Ltd —DUBLIN 1, County Dublin
- Annual leave
- Gym membership
Quick apply
Procurement Manager
Turner & Townsend —Dublin, County Dublin
- Full-time
- Master's degree
- Contracts
- Leadership
- Annual leave
Quick apply
4d
Principal Customer Success Manager, Enterprise
Intercom —Dublin, County Dublin
- Hybrid work
- AI
- Work from home
Power Systems Engineer - Dublin or Cork
Tractebel —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- English
- Construction experience
- In-person
- Annual leave
Principal OT Cybersecurity Consultant
Jacobs —Dublin, County Dublin
- Hybrid work
- IT
- Communication skills
Deputy Project Leader - Dublin, Ireland
M.C. Dean, Inc —Dublin, County Dublin
- Full-time
- Engineering
- Microsoft Office
- Bachelor's degree
Power Systems Engineer - Dublin or Cork
ENGIE —DUBLIN 2, County Dublin
- Hybrid work
- English
- Construction experience
- In-person
- Annual leave
Lead Software Developer / Technical Lead – Dublin, Ireland (Hybrid)
Hadfield Green —DUBLIN 2, County Dublin
- System design
- JavaScript
- Software development
Sr. Database Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Java
- SQL
Principal Electrical Engineer – HV / MV Technical Specialist
PM Group —Dublin, County Dublin
- Electrical Engineering
- Communication skills
3d
Web Engineer, Marketing
Supermetrics —Dublin, County Dublin
- JavaScript
- AI
- Analytics
Quick apply
Mechanical Associate Director: Data Centres
AECOM —Dublin, County Dublin
- Full-time
- Leadership

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Principal Software Engineer

Mastercard -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Microservices
Distributed systems
AI
Leadership

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 Software Engineer

About Mastercard

Mastercard powers a global, inclusive digital economy. We build secure, scalable technology that enables fast, simple, and safe payments for people and businesses everywhere.

The Opportunity

We’re looking for a Principal Software Engineer to play a key role in shaping our Intelligent Dispute Platform (IDP) — a next-generation platform transforming how disputes are managed at global scale.

This is a high-impact role where you’ll combine deep technical expertise, architectural leadership, and a bias for action to solve complex challenges in a fast-moving environment.

What You’ll Do

Lead the design of scalable, cloud-native platforms handling high-volume, mission-critical workloads
Act as a technical authority, guiding architecture and key engineering decisions
Drive engineering excellence across development, testing, security, and reliability
Embed strong development lifecycle discipline (PDLC) to ensure quality and delivery at scale
Apply AI and automation to improve how software is built, tested, and delivered
Partner across teams to solve complex problems and deliver outcomes quickly
Mentoring engineers and raising the bar for technical excellence

What We’re Looking For

Proven experience building large-scale distributed systems
Strong background in microservices, APIs, cloud platforms, and modern engineering practices
Ability to operate with urgency, make decisions quickly, and adapt to change
Exceptional problem-solving skills — especially in ambiguous, high-pressure situations
Experience influencing across teams and driving technical strategy at scale
Interest or experience in applying AI to software engineering workflows

Why Join Us?

Work on high-impact, global-scale systems
Be part of a team defining the future of AI-enabled engineering
Collaborate with top engineering talent across Mastercard
Shape platforms that power critical financial infrastructure worldwide

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 engineer jobs in blackrock, d

Principal Software Engineer

Principal Electrical Engineer

Electrical Engineer (Principal/Senior)

Principal Security Engineer, AWS Security

Principal Software Engineer, AWS Lambda

Principal Information Security Engineer - Blockchain Technology

Software Development Engineer II, Transactional Data Storage

Principal Data Scientist

Lead Senior Geotechnical Engineer

Procurement Manager

Principal Customer Success Manager, Enterprise

Power Systems Engineer - Dublin or Cork

Principal OT Cybersecurity Consultant

Deputy Project Leader - Dublin, Ireland

Power Systems Engineer - Dublin or Cork

Lead Software Developer / Technical Lead – Dublin, Ireland (Hybrid)

Sr. Database Engineer, AWS DMS

Principal Electrical Engineer – HV / MV Technical Specialist

Web Engineer, Marketing

Mechanical Associate Director: Data Centres

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