Find principal software engineer Jobs in dublin, d

Principal Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Java
- AWS
Principal Software Engineer, Amazon DynamoDB
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Software development
- SDLC
Principal Data Scientist
Optum —Dublin, County Dublin
- Full-time
- Computer Science
- Research
- Master's degree
Principal Civil Engineer
AtkinsRéalis —Dublin, County Dublin
- Full-time
- Hybrid work
- Communication skills
Sr. Software Development Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
10d
Senior Lead Full Stack Software Engineer
FIS Global —Dublin, County Dublin
- Full-time
- Computer Science
- Software troubleshooting
- Java
Lead Senior Signalling Engineer
Amey Ltd —DUBLIN 1, County Dublin
- Annual leave
Quick apply
9d
Lead Senior Engineer
Amey Ltd —DUBLIN 1, County Dublin
- Annual leave
Quick apply
9d
Principal HV Design Engineer
COWI —Dublin, County Dublin
- Full-time
- Hybrid work
- Electrical Engineering
AI Software Architect – Dublin, Ireland (Hybrid)
Hadfield Green —DUBLIN 2, County Dublin
- System design
- Master's degree
- AI
Principal Structural Engineer – HV Substations
AtkinsRéalis —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Powerpoint
- Microsoft Office
- Communication skills
Senior Product Engineer - Pricing & Packaging
Intercom —Dublin, County Dublin
- On call
- Hybrid work
- Salesforce
- Annual leave
- Work from home
Principal Geotechnical Engineer
SLR Consulting —Dublin, County Dublin
- Full-time
- CAD
- Project management
- Bachelor's degree
- Annual leave
- Life insurance
Lead DevOps Engineer
Elwood Roberts —Dublin, County Dublin
- €500–€600 a day
- Full-time
- DevOps
- Java
- Python
Quick apply
Head of Architecture and Engineering Operations
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Azure
- Computer Science
4d
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
9d
Privileged Access Management Engineer
American International Group UK Limited, Ireland Branch & AIG Europe S.A. (Ireland Branch) —DUBLIN 1, County Dublin
- Full-time
- Azure
- Oracle
- Windows
Quick apply
5d
Geospatial Engineer
Murphy Geospatial —Dublin, County Dublin
- AutoCAD
- CAD
- Engineering
Quick apply
Principal Civil Engineer
Mott MacDonald —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Master's degree
- Project management
- Annual leave
- Life insurance
3d

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Principal Software Engineer

Mastercard -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Azure
Go
Kubernetes
C#
Encryption
Google Cloud Platform
Java
AWS
SDKs
REST
gRPC
Leadership
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 Software Engineer

Overview
Mastercard is seeking a Principal Software Engineer to architect, build, and operate the API platform that securely exposes foundation model capabilities across the organization. This role is critical to enabling safe, scalable, and compliant adoption of generative AI and advanced analytics across Mastercard products and services.
As a senior technical authority, you will define the architectural standards and operational practices that allow teams to consume AI model capabilities reliably and responsibly. You will partner closely with AI/ML engineers, product, security, and platform teams to deliver production‑grade APIs that meet Mastercard’s requirements for performance, resilience, governance, and trust.

Role
In this role, you will be responsible for end‑to‑end ownership of the foundation model API layer, ensuring it is secure, scalable, observable, and easy to adopt.
Key responsibilities include:

Architect and build enterprise‑grade API platforms that expose foundation model capabilities (e.g. inference, embeddings, agents) to internal consumers
Define and enforce API standards, including versioning, backward compatibility, SDKs, and developer experience best practices
Design and implement security and governance controls, including authentication, authorization, policy enforcement, audit logging, and usage limits
Ensure platform reliability, scalability, and performance, including traffic management, caching, retries, and graceful degradation
Partner with AI/ML engineering teams to productionize model capabilities while abstracting complexity from downstream consumers
Drive observability and cost control, delivering usage metrics, monitoring, alerting, and cost attribution across tenants and applications
Lead technical design reviews and code reviews for critical services, setting a high bar for engineering quality and operational readiness
Influence broader platform and AI strategy through architectural guidance, technical proposals, and trade‑off analysis
Mentor senior engineers and act as a role model for secure, resilient, and maintainable software engineering practices

All About You

Extensive experience designing and operating large‑scale, distributed production systems
Deep expertise in API and platform engineering, including REST and/or gRPC, service gateways, and multi‑tenant architectures
Strong background in software security, including authN/authZ, encryption, secrets management, and threat modeling
Experience building services in cloud‑native environments (e.g. Kubernetes, managed cloud services on AWS, Azure, or GCP)
Proven ability to deliver reliable, observable, and cost‑efficient services in high‑availability environments
Strong programming skills in one or more backend languages (e.g. Java, Go, C#, Kotlin, Python)
Familiarity with foundation model integration patterns, such as inference APIs, embeddings, RAG pipelines, and safety controls (preferred)
Experience working in regulated or enterprise environments, with an understanding of compliance, auditability, and risk management
Excellent communication skills with the ability to influence technical direction across teams
Demonstrated leadership through technical excellence, mentorship, and architectural ownership, rather than people management alone

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 software engineer jobs in dublin, d

Principal Software Engineer

Principal Software Engineer, Amazon DynamoDB

Principal Data Scientist

Principal Civil Engineer

Sr. Software Development Engineer, AWS DMS

Senior Lead Full Stack Software Engineer

Lead Senior Signalling Engineer

Lead Senior Engineer

Principal HV Design Engineer

AI Software Architect – Dublin, Ireland (Hybrid)

Principal Structural Engineer – HV Substations

Senior Product Engineer - Pricing & Packaging

Principal Geotechnical Engineer

Lead DevOps Engineer

Head of Architecture and Engineering Operations

Principal Data Scientist

Lead Senior Geotechnical Engineer

Privileged Access Management Engineer

Geospatial Engineer

Principal Civil Engineer

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