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Software Engineer - UI Frontend

Arcesium LLC
Lisbon, Portugalfull_timePosted 27 May 2026

About the role

<div class="content-intro"><p> </p> <div> <h2><strong>Company Overview</strong></h2> </div> <div> <p>Arcesium is a global financial technology firm that solves complex data-driven challenges faced by some of the world’s most sophisticated financial institutions. We constantly innovate our platform and capabilities to meet tomorrow’s challenges, anticipate the risks our clients encounter, and design advanced solutions to help our clients achieve transformational business outcomes.   </p> </div> <p>Financial technology is a high-growth industry as change and innovation continue to disrupt the status-quo and prompt major transformation. Arcesium is at a particularly interesting time in our own growth as we look to leverage our successfully established market position and expand operations in pursuit of strategic new business opportunities. We value intellectual curiosity, proactive ownership, and collaboration with colleagues, and we empower you to meaningfully contribute from day one and accelerate your professional development.</p></div><p>We are looking for bright and exceptional software engineers to join our technology team. You will build next-generation software used by some of the most sophisticated alternative asset managers, and play a central role in Arcesium's platform experience</p> <p><strong>What You'll Do:</strong></p> <ul> <li>Build high-performance, data-dense UIs featuring virtualized grids, advanced column management, real-time status views, and complex multi-step financial workflows</li> <li>Work with Product Managers and Designers to drive the Modern UI rollout in delivering parity with legacy screens while meaningfully improving usability, navigation, and accessibility</li> <li>Architect and develop the Backend for Frontend (BFF) layer using Node.js/TypeScript to orchestrate, stitch, and transform data from multiple backend services for efficient UI consumption</li> <li>Build and maintain reusable components in the Arc Design System (MUI-based), ensuring consistency across opt-in/opt-out flows, column customizers, filter panels, and shared UI patterns</li> <li>Collaborate with backend teams to define and close API contracts, and work with non-technical stakeholders to review and validate usability and experience quality</li> <li>Contribute to AI-assisted development workflows, including prompt-driven component scaffolding, AI-powered legacy app migration tooling, and embedding agent interactions into UI</li> </ul> <p><strong>What You'll Need:</strong></p> <ul> <li>A bachelor's degree in engineering with 2–5 years of experience in the IT industry</li> <li>2+ years of hands-on web development with HTML5, JavaScript, T

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Company

Arcesium LLC

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