Find Principal software engineer Jobs

Software Architect
Holafly —Dublin, County Dublin
- Remote
- Spanish
- System design
- English
Senior Data Analytics Engineer
Spanish Point Technologies —Clontarf, County Dublin
- Spanish
- Azure
- Computer Science
AI Software Architect – Dublin, Ireland (Hybrid)
Hadfield Green —DUBLIN 2, County Dublin
- System design
- Master's degree
- AI
ASIC Digital Design, Principal Engineer
Synopsys —Dublin, County Dublin
- Computer Science
- Engineering
- Bachelor's degree
Principal Silicon Validation Engineer
Qorvo —DUBLIN 8, County Dublin
- Engineering
- Data analysis skills
- Analysis skills
2d
Principal Engineer, Web Platform – Team Web
Intercom —Dublin, County Dublin
- Hybrid work
- System design
- AWS
- JavaScript
- Annual leave
- Work from home
Principal Platform Engineer
ACI Worldwide —Limerick, County Limerick
- Full-time
- Azure
- Computer Science
- Java
Principal Cybersecurity Architect
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- AWS
- Software development
- AI
Principle DevOps Engineer
Elwood Roberts —Dublin, County Dublin
- €90,000–€96,000 a month
- Full-time
- DevOps
- Java
- Python
Quick apply
Research Engineer
Croom Medical —Croom, County Limerick
- Full-time
- Doctoral degree
- CAD
- Engineering
Quick apply
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Principal DevOps Engineer - Decision Management Platform
Mastercard —Dublin, County Dublin
- Full-time
- DevOps
- Java
- AWS
Principal / Lead Geotechnical Engineer
PM Group —Dublin, County Dublin
- Master's degree
- Analysis skills
- Bachelor's degree
Principal Engineer - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- AI
1d
Principal Engineer Digital Design (f/m/div)
Infineon Technologies AG —Cork, County Cork
- English
- Master's degree
- Bachelor's degree
Graphics Developer Tools Engineer - Cork, Ireland
Qualcomm —Cork, County Cork
- Computer Science
- Engineering
- C++
- Employee stock purchase plan
Consumer Bluetooth Principal System Application Engineer
Analog Devices —Limerick, County Limerick
- Full-time
- Doctoral degree
- C++
- Bachelor's degree
Principal Product Manager — DSPM
Forcepoint International Technology Limited —Cork, County Cork
- Full-time
- Presentation skills
- No degree
- Product management
Quick apply
Staff/Principal Product Designer
Intercom —Dublin, County Dublin
- Hybrid work
- System design
- Annual leave
- Work from home
Head of Architecture and Engineering Operations
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Microsoft Excel
- Azure
- Computer Science

I want to receive the latest job alerts for principal software engineer

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

principal software engineer jobs near

Devops Engineer jobs in Dublin, County Dublin

Software Architect jobs in Dublin, County Dublin

Platform Engineer jobs in Limerick, County Limerick

Principal Software Engineer jobs in Dublin, County Dublin

Digital Designer jobs in Dublin, County Dublin

Product Designer jobs in Dublin, County Dublin

Head Of Operations jobs in Dublin, County Dublin

Geotechnical Engineer jobs in Dublin, County Dublin

Devops Engineer jobs in Tallaght, County Dublin

Devops Engineer jobs in Waterford, County Waterford

Mechanical Engineer jobs in Limerick, County Limerick

Devops Engineer jobs in Remote

Devops Engineer jobs in Galway, County Galway

Devops Engineer jobs in Sandyford, County Dublin

Cqv Engineer jobs in Cork, County Cork

Devops Engineer jobs in Shannon, County Clare

Systems Engineer jobs in Dublin, County Dublin

Microsoft Software Engineer jobs in Dublin, County Dublin

Work From Home Architect jobs in Dublin, County Dublin

Software Developer jobs in County Donegal

Software Architect

Holafly -
Dublin, County Dublin

Apply Now

Job details

Qualifications

Spanish
Node.js
React
System design
English
Google Cloud Platform
Distributed systems
Terraform
REST
Django
Python

Full job description

Company Overview

Holafly is a high-growth scale-up revolutionising how businesses and travellers connect to the internet abroad. Since 2018, we’ve empowered travellers in over 200 destinations worldwide with secure and reliable eSIM solutions. With a team of 500+ professionals across multiple countries, we are scaling globally to support travellers with seamless, unlimited data connectivity.

We’re not just connecting people—we’re enabling freedom and peace of mind, ensuring our users stay connected from the second they land, wherever their journey takes them.

The Role

We're looking for a Software Architect to join our SME team — a group of senior technical leaders who act as the connective tissue between our engineering squads, setting standards, reviewing critical design decisions, and driving architectural evolution across Holafly's platform.

This is not a management role. This is a deeply technical, high-influence position for someone who loves solving hard problems, cares about system design at scale, and can communicate clearly with both engineers and stakeholders.

What You'll Do

Design and review highly available, resilient architectures across Holafly's distributed systems.
Lead architectural decisions for high-traffic, high-demand environments — we serve millions of concurrent users.
Define and evolve patterns for event-driven architectures using async messaging, queues, and streaming.
Establish and enforce REST API design standards, including versioning, contracts, and documentation strategies.
Apply Domain-Driven Design (DDD) principles to help teams define clear bounded contexts, aggregates, and domain events.
Collaborate with engineering squads on technical design, code reviews, and architectural fitness functions.
Guide the platform's evolution across our full stack: React SPAs, Node.js BFFs, Python/Django/Celery microservices, and Flutter mobile apps.
Ensure infrastructure best practices across GCP, using Terraform, Helm, and ArgoCD for reliable, scalable deployments.
Champion digital and web security practices — secure-by-design, threat modeling, and compliance.
Act as a trusted SME and escalation point for squads facing complex technical challenges.

What We're Looking For

Required

Proven experience as a Software Architect or Principal/Staff Engineer in high-scale production environments.
Deep knowledge of high availability and resilience patterns: circuit breakers, bulkheads, graceful degradation, multi-region strategies.
Experience designing systems for high-demand, high-concurrency use cases at scale.
Strong hands-on background with event-driven architectures: message brokers, event sourcing, CQRS, async workflows.
Solid REST API design expertise — contract-first, versioning, OpenAPI/Swagger, backward compatibility.
Applied knowledge of Domain-Driven Design: bounded contexts, ubiquitous language, aggregates, domain events.
Familiarity with the Holafly tech stack, or the ability to ramp up quickly across it.
Strong digital/web security background: OWASP, zero-trust, auth patterns (OAuth2, JWT), API security, data protection.
English is mandatory — you'll work with a distributed, international team and write architectural documentation in English.

Nice to Have

Experience with Spec-Driven Development (OpenAPI-first, AsyncAPI) — bonus points if you've integrated AI tooling into that workflow.
Spanish language skills are a plus, given our presence in Spanish-speaking markets and the composition of our team.

You'll Thrive Here If You

Can zoom out to see system-wide implications and zoom in to review a pull request.
Write and communicate as clearly as you code — architecture docs, RFCs, and ADRs are part of the job.
Are opinionated but not rigid — you can defend a position and change your mind with new evidence.
Care about developer experience as much as system performance.
Are comfortable with ambiguity and enjoy shaping technical direction, not just executing it.

Tech Stack

Our platform is mobile-first and cloud-native. You'll be working across:

Frontend: React (SPA), Backend for Frontend: Node.js (BFF pattern), Microservices: Python · Django · celery, Mobile: Flutter (app-first), Cloud: Google Cloud Platform (GCP), Infrastructure as Code: Terraform, Deployment: Helm · ArgoCD (GitOps), Architectural style: Event-driven · REST APIs · DDD

Apply Now

Refine Your Search

principal software engineer jobs

Software Architect

Senior Data Analytics Engineer

AI Software Architect – Dublin, Ireland (Hybrid)

ASIC Digital Design, Principal Engineer

Principal Silicon Validation Engineer

Principal Engineer, Web Platform – Team Web

Principal Platform Engineer

Principal Cybersecurity Architect

Principle DevOps Engineer

Research Engineer

Principal Architect (Remote – Ireland)

Principal DevOps Engineer - Decision Management Platform

Principal / Lead Geotechnical Engineer

Principal Engineer - Commerce Hub

Principal Engineer Digital Design (f/m/div)

Graphics Developer Tools Engineer - Cork, Ireland

Consumer Bluetooth Principal System Application Engineer

Principal Product Manager — DSPM

Staff/Principal Product Designer

Head of Architecture and Engineering Operations

I want to receive the latest job alerts for principal software engineer

Related Searches

Explore jobs in more locations

Jobseeker tools

Employer Tools

Browse

Stay Connected