Find Javascript developer Jobs in Dublin County Dublin

Software Engineer III-Front End (React/Web)
JPMorganChase —DUBLIN 2, County Dublin
- Full-time
- JavaScript
- Mentoring
- AI
13d
Software Engineer II
Mastercard —Dublin, County Dublin
- Full-time
- Computer Science
- DevOps
- Java
11d
Senior .NET Web Developer
Spanish Point Technologies —Clontarf, County Dublin
- Spanish
- Azure
- Computer Science
QA Automation Engineer
PlayStation Global —Dublin, County Dublin
- Computer Science
- Java
- Master's degree
Quick apply
Success Architect, Marketing Cloud
Salesforce —Dublin, County Dublin
- Full-time
- Remote
- Spanish
- Salesforce
- SQL
Senior Web Application Developer, finance (contract)
TEKenable —Dublin, County Dublin
- Hybrid work
- JavaScript
- No degree
- IT
Quick apply
Staff Software Engineer, Ruby on Rails
Ripple —Dublin, County Dublin
- Full-time
- Azure
- Oracle
- AWS
Quick apply
Pre-Sales Solutions Engineer (Italian Speaking)
Klaviyo —Dublin, County Dublin
- €54,400–€81,600 a year
- Sales
- English
- SQL
Quick apply
Sr Backend Engineer - GraphQL Federation
eBay Inc. —Dublin, County Dublin
- Full-time
- System design
- Java
- JavaScript
Senior Specialist, Industry Solutions
MongoDB —Dublin, County Dublin
- Azure
- Sales
- DevOps
Senior Success Guide - Spanish / German/ Portuguese - Marketing Cloud
Salesforce —Dublin, County Dublin
- Full-time
- Spanish
- Salesforce
- Java
Senior Solutions Engineer (API, Python, Node.JS)
Binance —Dublin, County Dublin
- Full-time
- Remote
- English
- JavaScript
- Communication skills
Quick apply
ServiceNow Architect
Uniphar PLC —DUBLIN 24, County Dublin
- Full-time
- JavaScript
- Scripting
- Communication skills
Quick apply
Software Engineering Manager
PlayStation Global —Dublin, County Dublin
- System design
- C++
- JavaScript
Quick apply
Senior Software Engineer - SAP Commerce Cloud
Henry Schein Ireland —Dublin, County Dublin
- Full-time
- Computer Science
- Sales
- Bachelor's degree
12d
Senior Product Engineer
Intercom —Dublin, County Dublin
- Hybrid work
- AWS
- JavaScript
- No degree
- Annual leave
- Work from home
Senior Software Engineer, Atlas API Experience
MongoDB —Dublin, County Dublin
- Remote
- Azure
- Java
- AWS
2h
Senior Power Platform / Dynamics 365 Consultant
Codec —Dublin, County Dublin
- Full-time
- Hybrid work
- Azure
- Oracle
- JavaScript
Quick apply
Microsoft Dynamics 365 Developer
Uniphar PLC —DUBLIN 24, County Dublin
- Full-time
- Azure
- Customer service
- DevOps
Quick apply

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Software Engineer III-Front End (React/Web)

JPMorganChase -
DUBLIN 2, County Dublin

Apply Now

Job details

Full-time
13 days ago

Qualifications

CSS
React
D3.js
JavaScript
REST
Mentoring
SEO
UI
GraphQL
AI
Canvas
TypeScript
Debugging
SDLC

Full job description

JOB DESCRIPTION

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level.

As a Software Engineer III at JPMorganChase within the Employee platform, you serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable way. You are responsible for carrying out critical technology solutions across multiple technical areas within various business functions in support of the firm's business objectives.

Job responsibilities

Lead development of complex, user-facing web applications using React + TypeScript, owning the front-end architecture and delivery approach.
Partner with UX/Product to translate designs into polished experiences; influence requirements with feasibility, performance, and accessibility considerations.
Establish and evolve front-end standards: component architecture, state management, routing, code conventions, and testing practices.
Build using JPMC's EXDS UI foundations: design system / component library, theming, responsive layouts, and cross-browser compatibility.
Drive performance and quality: Core Web Vitals, bundle optimization, rendering strategies, caching, and runtime observability.
Implement advanced UI capabilities such as rich data visualization, real-time updates, offline-friendly patterns, and robust form/workflow experiences.
Ensure secure client-side patterns: safe auth flows, token handling guidance, secure storage, and protection against common web vulnerabilities.
Collaborate with backend teams on API contracts (GraphQL/REST) and advocate for front-end friendly patterns (pagination, filtering, error models).
Leverages enterprise-authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity across complex deliverables (e.g., code generation/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure coding standards; contributes learnings and reusable patterns to improve broader team effectiveness.
Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation.

Required qualifications, capabilities, and skills

4+ years of professional software engineering experience with strong front-end focus; experience leading projects and mentoring engineers.
Expert-level React (hooks, component composition, context, rendering behavior, concurrency patterns where applicable).Strong TypeScript (types as design, generics, strictness) and modern JavaScript fundamentals.
Deep experience with front-end tooling (Vite/Webpack, Babel/SWC, npm/pnpm/yarn, monorepos) and build/release pipelines.
Strong CSS skills (responsive design, CSS architecture, theming, scalable styling).
Advanced testing practices (Jest/Vitest, React Testing Library, Playwright/Cypress) with ownership of test strategy.
Accessibility expertise (WCAG/ARIA, keyboard navigation, screen readers, automated and manual testing).
Performance engineering and API integration (profiling, bundle splitting, SSR/CSR trade-offs, caching, Core Web Vitals; GraphQL/REST, error handling, pagination, client state).
Security and observability awareness (XSS/CSRF prevention, dependency hygiene, secure auth/session patterns, client-side logging/metrics, debugging production issues) plus MUST: proficiency with AI-assisted engineering tools (e.g., Copilot, Claude) with validation and secure practices.
Hands-on experience using enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security.
Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; ability to guide peers on safe and effective usage within team practices.

Preferred qualifications, capabilities, and skills

Experience with SSR/meta frameworks: Next.js / Remix and SEO considerations.
Experience leveraging a design system (Storybook, tokens).
Experience with micro-frontend patterns and module federation (where relevant).
Experience with visualization and rich UI: D3, Canvas/WebGL, advanced tables/grids, animation libraries.
Familiarity with authentication integrations (OIDC/OAuth2) and enterprise SSO constraints.
Proven track record modernizing legacy front ends and improving developer experience (DX).

ABOUT US

J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives.

We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

ABOUT THE TEAM

Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we're setting our businesses, clients, customers and employees up for success.

Apply Now

Refine Your Search

javascript developer jobs in dublin county dublin

Software Engineer III-Front End (React/Web)

Software Engineer II

Senior .NET Web Developer

QA Automation Engineer

Success Architect, Marketing Cloud

Senior Web Application Developer, finance (contract)

Staff Software Engineer, Ruby on Rails

Pre-Sales Solutions Engineer (Italian Speaking)

Sr Backend Engineer - GraphQL Federation

Senior Specialist, Industry Solutions

Senior Success Guide - Spanish / German/ Portuguese - Marketing Cloud

Senior Solutions Engineer (API, Python, Node.JS)

ServiceNow Architect

Software Engineering Manager

Senior Software Engineer - SAP Commerce Cloud

Senior Product Engineer

Senior Software Engineer, Atlas API Experience

Senior Power Platform / Dynamics 365 Consultant

Microsoft Dynamics 365 Developer

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