Find Senior react developer Jobs

Software Architect
Holafly —Dublin, County Dublin
- Remote
- Spanish
- System design
- English
AI Builder, Emerging Talent - French Market
Salesforce —Dublin, County Dublin
- Full-time
- Sales
- English
- Master's degree
Software Developer – SaaS Provider
Coelrind Ireland Ltd —Carlow, County Carlow
- From €50,000 a year
- Full-time
- Hybrid work
- Azure
- SQL
- JavaScript
Quick apply
13h
Senior AWS Engineer
ResMed —Dublin, County Dublin
- Full-time
- Computer Science
- Salesforce
- DevOps
- Referral programme
14d
Software Security Operations Engineer, Senior - Cork, Ireland
Qualcomm —Cork, County Cork
- Oracle
- Doctoral degree
- Computer Science
- Employee stock purchase plan
Senior II Backend Engineer
Ethyca —Dublin, County Dublin
- Full-time
- Azure
- System design
- AWS
Quick apply
Software Engineer 3
MongoDB —Dublin, County Dublin
- On call
- Remote
- Azure
- Java
- AWS
6d
Sr Software Engineer - SAP Commerce Cloud
Henry Schein Ireland —Dublin, County Dublin
- Full-time
- Computer Science
- DevOps
- Java
Sr Software Engineer - Motorsports
General Motors —Dublin, County Dublin
- Weekend availability
- Azure
- Computer Science
- Master's degree
7d
Lead Software Engineer
Mastercard —Dublin, County Dublin
- Full-time
- Azure
- System design
- Java
Director of Engineering
BoyleSports —Dundalk, County Louth
- Oracle
- Computer Science
- AWS
2d
Staff Software Engineer - Client Apps
Dolby —Dublin, County Dublin
- System design
- JavaScript
- Software development
Principal Engineer, Web Platform – Team Web
Intercom —Dublin, County Dublin
- Hybrid work
- System design
- AWS
- JavaScript
- Annual leave
- Work from home
Senior Software Engineer, Cash Forecasting
Ripple —Dublin, County Dublin
- Full-time
- Azure
- Oracle
- AWS
Quick apply
2d

More jobs to discover

Find similar jobs that you might be interested in.

AI Builder, Emerging Talent - French Market
Salesforce —Dublin, County Dublin
You are excited to travel 25-50% of the time, working directly alongside our customers to see your code come to life in their environments.
Senior Social Media Manager - French Fluent
Paradox —Dublin, County Dublin
2–3 years in social media management/content creation, ideally in a fast-moving brand or creator context. You already use Claude (or equivalent AI tools) weekly…
1d

I want to receive the latest job alerts for senior react developer

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

senior react developer jobs near

Senior Software Engineer jobs in Dublin, County Dublin

Software Architect jobs in Dublin, County Dublin

Builder jobs in Dublin, County Dublin

Senior Engineer jobs in Dublin, County Dublin

Back End Developer jobs in Dublin, County Dublin

Principal Software Engineer jobs in Dublin, County Dublin

Software Engineer jobs in Dublin, County Dublin

IT Security Specialist jobs in Cork, County Cork

Senior Software Engineer jobs in Waterford, County Waterford

Entry Level Engineer jobs in Dublin, County Dublin

Process Engineer jobs in County Dublin

Senior Software Engineer jobs in Cork, County Cork

Senior Software Engineer jobs in Remote

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 jobs in County Dublin

Product Builder jobs in Ballymount, County Dublin

Product Builder, Stryker jobs in Carrigtwohill, County Cork

Builder jobs in County Cork

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

senior react developer jobs

Software Architect

AI Builder, Emerging Talent - French Market

Software Developer – SaaS Provider

Senior AWS Engineer

Software Security Operations Engineer, Senior - Cork, Ireland

Senior II Backend Engineer

Software Engineer 3

Sr Software Engineer - SAP Commerce Cloud

Sr Software Engineer - Motorsports

Lead Software Engineer

Director of Engineering

Staff Software Engineer - Client Apps

Principal Engineer, Web Platform – Team Web

Senior Software Engineer, Cash Forecasting

More jobs to discover

I want to receive the latest job alerts for senior react developer

Related Searches

Explore jobs in more locations

Jobseeker tools

Employer Tools

Browse

Stay Connected