senior front end engineer | tax technology consulting

As a Senior Consultant in our Tax Technology Consulting team, you will work as the Senior Frontend Engineer and UI/UX Lead for our AI platform used across professional services.

The frontend is a Single Page Application built with Angular/TypeScript — featuring a real-time chat interface, admin dashboards, document management, multi-language support, and mobile capabilities.

You will lead the Frontend squad, establishing the design system, code quality standards, and UI/UX direction for the entire application. You will mentor and review the work of existing frontend developers, ensuring consistency, polish, and usability.

#KeyResponsibilities

• Lead the Frontend squad — establish and maintain a cohesive design system, component library, theming, and visual language.
• Own the UI/UX quality — user journey design, wireframing, usability testing, and visual consistency.
• Conduct structured code reviews for all frontend pull requests, mentoring team members and enforcing quality standards.
• Architect and maintain scalable frontend state management for complex real-time features (SSE streaming, WebSocket).
• Build and evolve the real-time chat interface — streaming responses, interactive elements, and rich content rendering.
• Own admin dashboards — user management, analytics, and configuration.
• Ensure multi-language support (i18n) is consistent, complete, and maintainable.
• Improve accessibility (WCAG compliance) and performance (Core Web Vitals).
• Guide the mobile application evolution.
• Collaborate with backend and AI teams to design clean API contracts and data flows.

#RequiredSkills

To qualify for the role, you must have:

·       • Bachelor's degree in Computer Science, Design, Human-Computer Interaction, or a related field.
• 3–6 years of professional frontend development experience with Angular and TypeScript (React experience is transferable).
• Demonstrable UI/UX design sensibility — experience creating or maintaining design systems and component libraries.
• Strong understanding of user experience principles — user journeys, wireframing, and usability testing.
• Experience with real-time UI patterns — Server-Sent Events (SSE), WebSocket streaming.
• Knowledge of state management at scale — NgRx, RxJS, or similar reactive programming patterns.
• Experience with code review and mentoring.
• Proficiency with modern CSS (SCSS, CSS Grid, Flexbox), responsive design, and cross-browser compatibility.
• Excellent written and verbal communication skills in English.

#PreferredSkills

·       • Proficiency with Figma or similar design tools for wireframing and prototyping.
• Experience with mobile development (Android/iOS hybrid, PWA, or responsive-first approaches).
• Knowledge of accessibility standards (WCAG 2.1+).
• Experience with internationalization (i18n) frameworks and multi-language applications.
• Familiarity with conversational/chat UI patterns — streaming text, markdown rendering, rich embeds.
• Experience with performance optimization — lazy loading, code splitting, bundle size management.
• Understanding of AI/ML product interfaces.
• Experience working in design-aware engineering teams / product-led organizations.

#WhatWeOffer

At Deloitte, we know that great people make a great organization. We value our people and offer employees a broad range of benefits.

• Modern hybrid workplace, characterized by flexibility and Smart Working

• Empowered well-being: We provide multiple program offerings to support your well-being needs (flexible working arrangements, extra days of leave, parental allowances)

• Engagement within international large-scale teams and projects, with opportunities to travel for training or client purposes.

• Constant opportunities for learning with unlimited access to internal and external learning platforms and sponsored certificates aligned with business needs and technology trends

• Challenging and innovating environment where personal development and growth are encouraged, always with transparency and trust

• Diverse culture and active communities that enable you to bring yourself to work

• Team Building and Corporate Social Responsibility Activities

• A buddy to support you with your onboarding

• Private medical health insurance plan

• Ticket restaurant card

• Exclusive Discounts to several retail providers, restaurants and others

• Mobile phone

• Fresh fruits and unlimited coffee everyday at our offices