Senior UX/UI Engineer: Lead End-to-End Front-End UX

Logic Planet; Malvern (Chester County); On-site; USD 120,000 - 160,000; Full time

Job summary

Logic Planet in Malvern, PA is seeking an experienced Senior UX/UI Engineer to own the end-to-end UX/UI lifecycle, translating user needs into visually compelling web interfaces built with React or Angular.

You will collaborate with product, design, and engineering teams, create personas and journeys, and ensure accessibility and responsive design across platforms.

This onsite, long-term role requires 8+ years of experience and a strong command of Figma, REST APIs, and design systems.

Qualifications

• 8+ years of experience in UX/UI Design and Front-End Engineering.
• Strong hands-on experience with React.js and/or Angular.
• Strong knowledge of Node.js and REST/API integration.
• Advanced proficiency in Figma.
• Strong understanding of the UX lifecycle and design thinking methodologies.
• Experience with Persona Creation, user journeys, empathy maps, and user stories.
• Strong knowledge of wireframing, prototyping, information architecture, interaction design, and usability testing.
• Experience creating responsive and modern web interfaces.
• Strong understanding of HTML5, CSS3, JavaScript/TypeScript.
• Experience working with design systems and reusable UI components.
• Understanding of UX research methodologies and user-centered design.
• Strong communication and stakeholder management skills.

Responsibilities

• Lead the end-to-end UX/UI lifecycle, from user research and requirements gathering through design, development, usability testing, and implementation.
• Create and maintain user personas, user journeys, workflows, information architecture, and interaction models.
• Develop high-fidelity wireframes, mock-ups, prototypes, and UI designs using Figma and related design tools.
• Collaborate with product, business, and engineering teams to define user-centric solutions.
• Develop responsive and reusable front-end components using React and/or Angular.
• Work with Node.js for backend integration, APIs, and supporting application functionality.
• Ensure consistency across design systems, UI components, typography, layouts, and visual patterns.
• Conduct usability testing and incorporate user feedback into design improvements.
• Translate Figma designs and UX specifications into pixel-perfect, responsive web interfaces.
• Ensure applications meet accessibility, usability, performance, and responsive design standards.
• Collaborate with developers to ensure design feasibility and accurate implementation.
• Participate in design reviews, code reviews, usability reviews, and stakeholder presentations.
• Identify UX issues and recommend improvements based on user behavior, analytics, and feedback.

Skills

React.js

Angular

Node.js

JavaScript/TypeScript

UX lifecycle

Persona creation

Wireframing

Prototyping

Information architecture

Usability testing

Design systems

HTML5

CSS3

Interaction design

Tools

Figma

Job description

Logic Planet in Malvern, PA is seeking an experienced Senior UX/UI Engineer to own the end-to-end UX/UI lifecycle, translating user needs into visually compelling web interfaces built with React or Angular.

You will collaborate with product, design, and engineering teams, create personas and journeys, and ensure accessibility and responsive design across platforms.

This onsite, long-term role requires 8+ years of experience and a strong command of Figma, REST APIs, and design systems.