Find Lead software engineer backend Jobs in Oldtown, D

Software Architect
Holafly —Dublin, County Dublin
- Remote
- Spanish
- System design
- English
Staff/Lead Front-end Engineer
Mimica —Dublin, County Dublin
- Full-time
- Remote
- System design
- English
- Master's degree
- Annual leave
- Work from home
Principal Software Development Engineer
CarGurus —Dublin, County Dublin
- €90,000–€108,000 a year
- Java
- AWS
- JavaScript
Software Engineer 3
MongoDB —Dublin, County Dublin
- On call
- Hybrid work
- Azure
- Java
- AWS
Software Engineering Manager
PlayStation Global —Dublin, County Dublin
- €96,900–€145,300 a year
- System design
- C++
- JavaScript
Quick apply
Manager - Technical Support
Sprinklr —Dublin, County Dublin
- Full-time
- Microsoft Excel
- Management
- Social media management
- Annual leave
2h
Senior Lead – VOIP Engineer
Sprinklr —Dublin, County Dublin
- Full-time
- Azure
- Management
- Social media management
- Annual leave
Backend & DevOps Lead
Vodafone —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- Java
- SQL
6d
Digital Architect
Elwood Roberts —Dublin, County Dublin
- €500–€550 a day
- Full-time
- Hybrid work
- Computer Science
- System design
- Java
Quick apply
Lead Software Engineer - Financial Wellness
Gen Digital Inc. —Dublin, County Dublin
- Full-time
- Hybrid work
- System design
- Java
- AWS
Quick apply
Staff Software Engineer Europe
Paymentology —Dublin, County Dublin
- Full-time
- Remote
- Computer Science
- System design
- English
3d
Principal Architect (Remote – Ireland)
Hadfield Green —DUBLIN 2, County Dublin
- Remote
- System design
- Java
- Leadership
Staff AI Designer
Intercom —Dublin, County Dublin
- Hybrid work
- Annual leave
- Work from home
Senior Software Developer
Creditsafe —Dublin, County Dublin
- Full-time
- Hybrid work
- AWS
- Communication skills
- Python
- Annual leave
Senior Software Engineer - Core Team
Userpilot —Dublin, County Dublin
- Full-time
- Hybrid work
- System design
- AWS
- Communication skills
Quick apply
Sr. Software Eng, Data Platforms
eBay Inc. —Dublin, County Dublin
- Full-time
- System design
- Java
- AI
Senior Core Technologies Engineer
Intercom —Dublin, County Dublin
- Hybrid work
- Annual leave
- Work from home
Senior Software Engineer
Vectra —Dublin, County Dublin
- Azure
- Engineering
- AWS
- Life insurance
Quick apply
AI Native SW Engineer - Manager
Accenture —Dublin, County Dublin
- Full-time
- Java
- Master's degree
- AI
10d
Senior Product Manager – Reporting & Visualisation
Kitman Labs —Dublin, County Dublin
- Full-time
- Hybrid work
- Research
- AI
- Leadership

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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

lead software engineer backend jobs in oldtown, d

Software Architect

Staff/Lead Front-end Engineer

Principal Software Development Engineer

Software Engineer 3

Software Engineering Manager

Manager - Technical Support

Senior Lead – VOIP Engineer

Backend & DevOps Lead

Digital Architect

Lead Software Engineer - Financial Wellness

Staff Software Engineer Europe

Principal Architect (Remote – Ireland)

Staff AI Designer

Senior Software Developer

Senior Software Engineer - Core Team

Sr. Software Eng, Data Platforms

Senior Core Technologies Engineer

Senior Software Engineer

AI Native SW Engineer - Manager

Senior Product Manager – Reporting & Visualisation

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