Find Principal software Jobs in Dublin, D

Principal Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Java
- AWS
Principal Software Engineer, AWS Lambda Experience
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- C++
10d
Principal Engineer, ServerOps, EMEA and APAC
Google —Dublin, County Dublin
- €224,000–€230,000 a year
- Full-time
- No degree
- Mentoring
2d
Principal Software Engineer, Amazon DynamoDB
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- AWS
- Software development
- SDLC
Lead/Principal Solution Architect/Technology Consultant
EPAM Systems, Inc. —Dublin, County Dublin
- Computer Science
- Master's degree
- Bachelor's degree
- Employee stock purchase plan
- Referral programme
Principal Engineer
Primark —Dublin, County Dublin
- Software development
- Agile
- Communication skills
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Principal/Senior Design Engineer – Product Standardisation
Johnson Controls —Dublin, County Dublin
- Full-time
- AutoCAD
- ERP systems
- Microsoft Office
Senior Lead Full Stack Software Engineer
FIS Global —Dublin, County Dublin
- Full-time
- Computer Science
- Software troubleshooting
- Java
Principal Technical Program Manager
Adswizz —Dublin, County Dublin
- Full-time
- Computer Science
- System design
- Bachelor's degree
Senior Data Scientist - Network Analytics & AI Enablement
Optum —Dublin, County Dublin
- Full-time
- Doctoral degree
- Master's degree
- SQL
6d
Principal Mechanical Engineer - Dublin or Cork
ENGIE —DUBLIN 2, County Dublin
- Hybrid work
- Microsoft Word
- Microsoft Excel
- Engineering
- Annual leave
Principal/Senior Railway Permanent Way Engineers
Roughan & O'Donovan —Dublin, County Dublin
- English
- Analysis skills
- Project management
Principal / Lead Structural Engineer
PM Group —Dublin, County Dublin
- Master's degree
- Communication skills
Principal Mechanical Engineer - Dublin or Cork
Tractebel —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Microsoft Word
- Microsoft Excel
- Engineering
- Annual leave
Staff Security Software Engineer
eBay Inc. —Dublin, County Dublin
- Full-time
- Azure
- System design
- SQL
Quant Trader- Dublin
Geneva Trading —Dublin, County Dublin
- Software troubleshooting
- SQL
- Python
Quality Administrator
Uniphar PLC —DUBLIN 24, County Dublin
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
Quick apply
4d
Principal Mechanical Engineer
Tetra Tech —Dublin, County Dublin
- Part-time
- Manufacturing
- Leadership
- Communication skills
5d
Gen AI and Automation Developer
Forvis Mazars —Dublin, County Dublin
- Azure
- Computer Science
- Bachelor's degree

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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 jobs in dublin, d

Principal Software Engineer

Principal Software Engineer, AWS Lambda Experience

Principal Engineer, ServerOps, EMEA and APAC

Principal Software Engineer, Amazon DynamoDB

Lead/Principal Solution Architect/Technology Consultant

Principal Engineer

Principal Architect (Remote – Ireland)

Principal/Senior Design Engineer – Product Standardisation

Senior Lead Full Stack Software Engineer

Principal Technical Program Manager

Senior Data Scientist - Network Analytics & AI Enablement

Principal Mechanical Engineer - Dublin or Cork

Principal/Senior Railway Permanent Way Engineers

Principal / Lead Structural Engineer

Principal Mechanical Engineer - Dublin or Cork

Staff Security Software Engineer

Quant Trader- Dublin

Quality Administrator

Principal Mechanical Engineer

Gen AI and Automation Developer

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