Frontend Engineer: High-Performance UI & AI-Driven UX

Arcesium LLC; Lisboa; Presencial; EUR 35 000 - 52 000; Tempo integral

Resumo da oferta

Arcesium LLC in Lisbon is seeking bright software engineers to join our technology team. You will build next-generation software used by sophisticated asset managers and play a central role in Arcesium’s platform experience.

You’ll implement high-performance UIs with virtualized grids, work with Product Managers and Designers, and contribute to the Backend for Frontend layer using Node.js/TypeScript. Experience with React and design systems is essential.

Qualificações

• Bachelor's degree in engineering with 2-5 years of IT industry experience.
• 2+ years of hands-on web development with HTML5, JavaScript, TypeScript, React, CSS, and TDD practices.
• Strong command of core JavaScript (closures, event loop, prototype chain, async/await) and TypeScript (generics, strict typing).
• Understand BFF patterns, component decomposition, state management (MobX or equivalent), and web performance optimization.
• Practical experience building and optimizing data grids with virtualization, lazy loading, column configuration, and filtering at scale.
• Experience with Material UI (MUI) and design system principles; ability to build accessible, consistent UI components.

Responsabilidades

• Build high-performance, data-dense UIs featuring virtualized grids and complex workflows.
• Collaborate with Product Managers and Designers to deliver Modern UI parity and improve usability, navigation, and accessibility.
• Architect and develop the Backend for Frontend (BFF) layer using Node.js/TypeScript to orchestrate data from multiple services.
• Build and maintain reusable components in the Arc Design System (MUI-based).
• Collaborate with backend teams to define and close API contracts and validate usability.
• Contribute to AI-assisted development workflows including prompt-driven scaffolding and tooling.

Conhecimentos

HTML5

JavaScript

TypeScript

React

CSS

TDD

Node.js

Express

UI performance

Web accessibility

Design systems

MUI

Formação académica

Bachelor's degree in engineering

Ferramentas

MobX

Arc Design System

Node.js

Express

Descrição da oferta de emprego

Arcesium LLC in Lisbon is seeking bright software engineers to join our technology team. You will build next-generation software used by sophisticated asset managers and play a central role in Arcesium’s platform experience.

You’ll implement high-performance UIs with virtualized grids, work with Product Managers and Designers, and contribute to the Backend for Frontend layer using Node.js/TypeScript. Experience with React and design systems is essential.