Find Principal software Jobs in Coolock, D

Software Architect
Holafly —Dublin, County Dublin
- Remote
- Spanish
- System design
- English
Associate Principal/Principal Qualitative Research, Patient Centered Solutions
IQVIA —Dublin, County Dublin
- Full-time
- Hybrid work
- Doctoral degree
- Data analysis skills
- English
Principal AI/ML Scientist & Engineer
Pipedrive —Dublin, County Dublin
- Full-time
- Hybrid work
- English
- AWS
- Mentoring
- Relocation assistance
- Annual leave
Quick apply
12d
Principle DevOps Engineer
Elwood Roberts —Dublin, County Dublin
- €90,000–€96,000 a month
- Full-time
- DevOps
- Java
- Python
Quick apply
Software Development Engineer II, Transactional Data Storage
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Principal Silicon Validation Engineer
Qorvo —DUBLIN 8, County Dublin
- Engineering
- Data analysis skills
- Analysis skills
2d
Director, AI & Digital Quality
Alexion Pharmaceuticals,Inc. —Dublin, County Dublin
- Management
- IT
- AI
11d
Data Platform Engineer - Cybersecurity
Workday —Dublin, County Dublin
- €70,200–€105,400 a year
- Full-time
- Azure
- Engineering
- AWS
2d
Sr. Software Development Engineer, AWS DMS
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Oracle
- Computer Science
- Java
Director, AI & Digital Quality
AstraZeneca —Dublin, County Dublin
- Management
- IT
- AI
11d
Head of Finance & Governance
Safetynet Primary Care —Dublin, County Dublin
- From €60,007 a year
- Full-time
- Hybrid work
- Accounting
- Communication skills
- Annual leave
Quick apply
2d
ASIC Digital Design, Principal Engineer
Synopsys —Dublin, County Dublin
- Computer Science
- Engineering
- Bachelor's degree
Principal Cybersecurity Architect
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- AWS
- Software development
- AI
Senior Implementation Consultant
Kefron —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- ERP systems
- SQL
Quick apply
Senior/Principal Corporate Applications Engineer
Microchip Technology —Dublin, County Dublin
- Full-time
- Engineering
- System design
- English
Principal Engineer - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- Java
- AWS
- AI
1d
Solutions Architect
Information Services Corporation —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- DevOps
Principal Technical Program Manager
Sirius XM —Dublin, County Dublin
- Full-time
- Remote
- Computer Science
- Bachelor's degree
- No degree
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Principal Technical Program Manager
Adswizz —Dublin, County Dublin
- Full-time
- Computer Science
- Bachelor's degree
- No degree

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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 jobs in coolock, d

Software Architect

Associate Principal/Principal Qualitative Research, Patient Centered Solutions

Principal AI/ML Scientist & Engineer

Principle DevOps Engineer

Software Development Engineer II, Transactional Data Storage

Principal Silicon Validation Engineer

Director, AI & Digital Quality

Data Platform Engineer - Cybersecurity

Sr. Software Development Engineer, AWS DMS

Director, AI & Digital Quality

Head of Finance & Governance

ASIC Digital Design, Principal Engineer

Principal Cybersecurity Architect

Senior Implementation Consultant

Senior/Principal Corporate Applications Engineer

Principal Engineer - Commerce Hub

Solutions Architect

Principal Technical Program Manager

Principal Architect (Remote – Ireland)

Principal Technical Program Manager

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