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Principal Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Java
- AWS
Safety Engineer
ElevenLabs —Dublin, County Dublin
- Full-time
- Remote
- DevOps
- Data analysis skills
- SQL
Senior Solutions Engineer
Okta —Dublin, County Dublin
- Sales
- Java
- Presentation skills
3d
Lead Test Engineer (Perm, UK, Remote)
Nearform —Remote
- Full-time
- Remote
- English
- Agile
- Communication skills
- Annual leave
2d
Senior Mulesoft Software Engineer
WP Engine —Remote
- €72,000 a year
- Overtime
- Remote
- Engineering
- SQL
- AWS
- Annual leave
- Work from home
Engineering Manager - Platform - Usage | Ireland | Remote
Grafana Labs —Remote
- €117,000–€137,000 a year
- Remote
- Azure
- AWS
- Communication skills
- Annual leave
Senior Software Engineer
Vectra —Dublin, County Dublin
- Azure
- Engineering
- AWS
- Life insurance
Quick apply
Senior II Frontend Engineer
Ethyca —Dublin, County Dublin
- Full-time
- JavaScript
- AI
- Communication skills
Quick apply
Senior Engineer, Applied AI
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Azure
- Master's degree
Engineering Manager (Data Processing) (Remote - Ireland)
Yelp —Remote
- Full-time
- Remote
- Azure
- Java
- AWS
- Employee stock purchase plan
- Annual leave
1d
Senior Backend/Full Stack Software Engineer
VIOTAS Limited —Limerick, County Limerick
- Full-time
- Hybrid work
- DevOps
- AWS
- JavaScript
- Annual leave
Quick apply
Senior Full Stack Engineer
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Azure
- Master's degree
Senior Software Development Engineer
Autodesk —Dublin, County Dublin
- Full-time
- Java
- AWS
- Software development
Senior Cloud Software Engineer
Analog Devices —Limerick, County Limerick
- Full-time
- Computer Science
- Master's degree
- AWS
Forward Deployed Solution Engineer – Applied AI FDE
ServiceNow —DUBLIN 2, County Dublin
- Full-time
- Azure
- Salesforce
- DevOps
Quick apply
Senior Product Engineer
Intercom —Dublin, County Dublin
- Hybrid work
- AWS
- JavaScript
- No degree
- Annual leave
- Work from home
Technical Product Manager QVAC - 100% remote
Tether Operations Limited —Dublin, County Dublin
- Full-time
- Remote
- Computer Science
- English
- C++
Sr Software Engineer - SAP Commerce Cloud
Henry Schein Ireland —Dublin, County Dublin
- Full-time
- Computer Science
- DevOps
- Java
B2B Sales Consultant - Mid-Market Tech (100% Commission / Remote)
BizExpanders —Remote
- €36,000–€72,000 a year
- Remote
- English
- Contracts
- AI
- Flexitime
- Work from home
Quick apply
4d
Senior Software Engineer, Database - Demonware - Dublin, IRL
Activision —Dublin, County Dublin
- Analysis skills
- No degree
- Agile
9d

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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

backend developer jobs

Principal Software Engineer

Safety Engineer

Senior Solutions Engineer

Lead Test Engineer (Perm, UK, Remote)

Senior Mulesoft Software Engineer

Engineering Manager - Platform - Usage | Ireland | Remote

Senior Software Engineer

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Senior Backend/Full Stack Software Engineer

Senior Full Stack Engineer

Senior Software Development Engineer

Senior Cloud Software Engineer

Forward Deployed Solution Engineer – Applied AI FDE

Senior Product Engineer

Technical Product Manager QVAC - 100% remote

Sr Software Engineer - SAP Commerce Cloud

B2B Sales Consultant - Mid-Market Tech (100% Commission / Remote)

Senior Software Engineer, Database - Demonware - Dublin, IRL

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