Find Backend software engineer Jobs in Killester, D

Software Architect
Holafly —Dublin, County Dublin
- Remote
- Spanish
- System design
- English
Senior .NET Engineer - Dublin
FDM Group —Dublin, County Dublin
- No degree
- Agile
- Leadership
- Annual leave
AI/ML Associate Engineer
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- Microsoft Excel
- Azure
- Computer Science
19h
AWS Engineer
ResMed —Dublin, County Dublin
- Full-time
- Computer Science
- Salesforce
- AWS
- Referral programme
10d
Senior Full Stack Engineer
EXL Service —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer science
- Microsoft Excel
- Azure
Principal QA Engineer - 1-year FTC
888 spectate —Dublin, County Dublin
- €70,000–€75,000 a year
- Hybrid work
- Java
- SQL
- JavaScript
- Annual leave
Quick apply
Director of Software Engineering
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- DevOps
Lead Full Stack Engineer
Optum —Dublin, County Dublin
- Full-time
- Azure
- Computer Science
- Engineering
Senior Software Development Engineer in Test
PlayStation Global —Dublin, County Dublin
- €72,700–€109,100 a year
- Computer Science
- DevOps
- Java
Quick apply
Senior Software Engineer - SAP Commerce Cloud
Henry Schein Ireland —Dublin, County Dublin
- Full-time
- Computer Science
- Sales
- Bachelor's degree
Software Engineering Manager
PlayStation Global —Dublin, County Dublin
- €96,900–€145,300 a year
- System design
- C++
- JavaScript
Quick apply
Senior Software Engineer - Site Reliability
Workday —Dublin, County Dublin
- €86,400–€129,600 a year
- Full-time
- Computer Science
- Java
- AWS
Senior Backend Engineer (Python/Django)
Holafly —Dublin, County Dublin
- Remote
- Spanish
- English
- Continuous improvement
Senior Software Development Engineer
Autodesk —Dublin, County Dublin
- Full-time
- Java
- AWS
- Software development
Staff/Lead Fullstack Engineer (Frontend-focused)
Mimica —Dublin, County Dublin
- Full-time
- Remote
- System design
- English
- Master's degree
- Annual leave
- Work from home
Director, Software Engineering
Mastercard —Dublin, County Dublin
- Full-time
- Computer Science
- Bachelor's degree
- No degree
Lead Software Developer / Technical Lead – Dublin, Ireland (Hybrid)
Hadfield Green —DUBLIN 2, County Dublin
- System design
- JavaScript
- Software development
Database Engineering Team Manager
Squarespace —Dublin, County Dublin
- €93,000–€143,000 a year
- Overtime
- Hybrid work
- No degree
- AI
- Annual leave
- Employee assistance program
Lead Software Engineer - Distributed Microservices Platform
Mastercard —Dublin, County Dublin
- Full-time
- Oracle
- System design
- Java
Senior Software Engineer - News Content Platform
Bloomberg —Dublin, County Dublin
- Computer Science
- System design
- Java

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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

backend software engineer jobs in killester, d

Software Architect

Senior .NET Engineer - Dublin

AI/ML Associate Engineer

AWS Engineer

Senior Full Stack Engineer

Principal QA Engineer - 1-year FTC

Director of Software Engineering

Lead Full Stack Engineer

Senior Software Development Engineer in Test

Senior Software Engineer - SAP Commerce Cloud

Software Engineering Manager

Senior Software Engineer - Site Reliability

Senior Backend Engineer (Python/Django)

Senior Software Development Engineer

Staff/Lead Fullstack Engineer (Frontend-focused)

Director, Software Engineering

Lead Software Developer / Technical Lead – Dublin, Ireland (Hybrid)

Database Engineering Team Manager

Lead Software Engineer - Distributed Microservices Platform

Senior Software Engineer - News Content Platform

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