We are seeking a highly experienced Sr. UI / UX Architect to lead the user experience strategy and interface design for the modernization and complete rewrite of our legacy enterprise systems. This role operates at the intersection of Product, Architecture, and Engineering, ensuring that business objectives, user needs, and technical constraints are translated into intuitive, scalable, and high-performing user experiences.

The ideal candidate will collaborate closely with Product Managers, Solutions Architects, and Engineering to define end-to-end experiences, establish a scalable design system, and modernize complex enterprise workflows. UX Strategy & Modernization Leadership Lead UX strategy for full platform modernization and legacy system rewrite initiatives

Analyze current workflows and identify usability gaps, inefficiencies, and UX debt

Redesign complex enterprise user journeys, including transactional workflows, dashboards, and reporting systems

Define UX principles aligned with scalability, accessibility, and maintainability Design System & Front-End Governance Define and govern a scalable enterprise design system for React-based applications

Establish reusable UI components aligned with accessibility, responsive design, and performance standards

Create standards for navigation models, forms, validation patterns, and high-density data grids Collaboration With Architecture & Engineering Partner with Senior Solutions Architects to align UX with system architecture and API design

Work directly with Senior Full Stack Developers to translate designs into production-ready components





Collaborate with Product Managers to ensure alignment with product vision and priorities Product Partnership & Experience Strategy Partner closely with Product Managers to translate business requirements into user-centered solutions

Contribute to product strategy, roadmap planning, and feature prioritization from a UX perspective

Advocate for end users in product and engineering discussions User Research & Validation Conduct stakeholder interviews and workflow discovery sessions

Lead usability testing and iterative validation cycles

Develop personas, journey maps, wireframes, and interactive prototypes Skills & Requirements Mandatory UX & Technical Expertise : 10+ years of professional experience in UI/UX design, focused on enterprise-scale web applications

Proven experience leading UX for full platform modernization or legacy system rewrite initiatives

Deep expertise in designing React-based, component-driven front-end architectures

Demonstrated experience building and governing enterprise design systems (design tokens, component libraries)

Advanced knowledge of interaction design for complex, data-intensive systems (dashboards, workflows, data grids)

Solid understanding of information architecture for large, role-based enterprise platforms





Deep expertise in accessibility standards (WCAG 2.1 AA or higher)

Proven ability to design responsive and adaptive experiences

Strong proficiency in Figma, Adobe XD, Sketch, or equivalent tools

Experience working closely with engineering teams to ensure design feasibility and implementation fidelity Product & Cross-Functional Expertise Proven experience partnering with Product Management to translate requirements into user-centered solutions

Strong understanding of the product development lifecycle (discovery, definition, delivery, iteration)

Experience working in agile environments, including sprint planning and backlog grooming

Ability to balance user needs, business goals, and technical constraints Data, Performance & Enterprise UX Considerations Experience designing for high-volume transactional systems

Understanding of how UX impacts performance and responsiveness

Experience designing interfaces that interact with APIs and distributed systems Preferred Technical Familiarity Working knowledge of React component architecture and state management

Familiarity with .NET / ASP.NET Core and Node.js ecosystems

Experience working in CI/CD-driven environments

Exposure to AI-assisted UX patterns Experience 10+ years of experience in enterprise UI/UX design roles

Demonstrated success in modernizing complex legacy systems

Experience working in highly technical, cross-functional environments Education Bachelors degree in UX Design, Human-Computer Interaction, or a related field

Masters degree preferred

Equivalent experience may be considered (ref:hirist.tech)

📌 Estuate - Senior UI/UX Architect - Figma/Adobe XD (Kolkata)
🏢 Estuate
📍 Kolkata