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I build and scale frontend systems for product-driven companies, focusing on UI architecture, performance, and long-term maintainability. My work sits at the intersection of engineering and UX: designing clear interaction models, scalable UI systems, and high-performance frontends that hold up under real product complexity. I’m framework-agnostic by default and have delivered production systems using React, Angular, and modern web standards (including native JavaScript and Web Components), adapting the stack to the problem rather than the other way around. I work best in remote, async environments with teams that value clarity, autonomy, and strong technical ownership.…I build and scale frontend systems for product-driven companies, focusing on UI architecture, performance, and long-term maintainability. My work sits at the intersection of engineering and UX: designing clear interaction models, scalable UI systems, and high-performance frontends that hold up under real product complexity. I’m framework-agnostic by default and have delivered production systems using React, Angular, and modern web standards (including native JavaScript and Web Components), adapting the stack to the problem rather than the other way around. I work best in remote, async environments with teams that value clarity, autonomy, and strong technical ownership.

Neria Katz

Web Developer, UX Designer, Product Designer, +2

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I build and scale frontend systems for product-driven companies, focusing on UI architecture, performance, and long-term maintainability. My work sits at the intersection of engineering and UX: designing clear interaction models, scalable UI systems, and high-performance frontends that hold up under real product complexity. I’m framework-agnostic by default and have delivered production systems using React, Angular, and modern web standards (including native JavaScript and Web Components), adapting the stack to the problem rather than the other way around. I work best in remote, async environments with teams that value clarity, autonomy, and strong technical ownership.…I build and scale frontend systems for product-driven companies, focusing on UI architecture, performance, and long-term maintainability. My work sits at the intersection of engineering and UX: designing clear interaction models, scalable UI systems, and high-performance frontends that hold up under real product complexity. I’m framework-agnostic by default and have delivered production systems using React, Angular, and modern web standards (including native JavaScript and Web Components), adapting the stack to the problem rather than the other way around. I work best in remote, async environments with teams that value clarity, autonomy, and strong technical ownership.

Available to hire

I build and scale frontend systems for product-driven companies, focusing on UI architecture, performance, and long-term maintainability.

My work sits at the intersection of engineering and UX: designing clear interaction models, scalable UI systems, and high-performance frontends that hold up under real product complexity.

I’m framework-agnostic by default and have delivered production systems using React, Angular, and modern web standards (including native JavaScript and Web Components), adapting the stack to the problem rather than the other way around.

I work best in remote, async environments with teams that value clarity, autonomy, and strong technical ownership.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Hebrew (modern)

Fluent

Work Experience

UX Strategist & Shopify Front-End Advisor at sofsy

June 1, 2025 - Present

Led UX architecture and front-end rebuild for a complex multi-skin Shopify ecosystem. Designed scalable theme structures using metafields, metaobjects, and modular sections. Delivered responsive, high-performance UI components across Liquid, JS, and modern CSS. Drove conversion-focused UX and UI improvements in collaboration with design and marketing teams. Provided expert guidance on performance, SEO, and long-term UX workflow scalability.

UI/UX Expert at Toptal

June 1, 2018 - Present

Specialized in UI/UX strategies for Shopify, crafting intuitive and conversion-driven digital experiences. Developed custom features using Shopify APIs, Liquid, and advanced theme configurations to meet diverse client needs. Oversaw bug tracking and feature implementation via Asana, ensuring seamless project execution. Built dynamic templates and meta fields using ThemeKit, optimizing customization and performance. Worked collaboratively with global teams on high-profile projects within Toptal’s exclusive talent network.

Director of User Experience at Sounds Good Agency | Shopify Experts

December 1, 2023 - March 1, 2025

Led UX initiatives that seamlessly integrated user-centric design principles with overarching business goals. Leveraged insights from Google Analytics, Hotjar, and A/B testing to refine user flows, successfully decreasing bounce rates by 15%. Championed mentorship and team collaboration, fostering a culture of innovation and continuous improvement. Oversaw end-to-end project execution, ensuring final deliverables exceeded functional and aesthetic expectations. Pioneered adoption of cutting-edge technologies to elevate design workflows and development efficiency. Crafted high-impact e-commerce experiences with a strong focus on performance, usability, and user engagement.

Lead Developer | Shopify Expert at Brno, South Moravia, Czechia

July 1, 2022 - December 1, 2023

Oversaw project roadmaps, ensuring development timelines, client expectations, and team coordination were in sync with business objectives. Analyzed behavioral data through Hotjar and Google Analytics, translating insights into impactful UX and development improvements. Guided junior developers, providing code reviews, technical mentorship, and process optimization strategies. Engineered a scalable front-end framework tailored for Shopify, enhancing development efficiency across multiple projects. Executed A/B testing to refine UI elements, resulting in a 10% boost in conversion rates. Delivered polished, user-friendly Shopify solutions, integrating advanced coding techniques for seamless user interactions.

Senior Front-end Developer & UI/UX Designer at StudioNow

November 1, 2020 - February 1, 2022

Designed and implemented the “Creative Search” feature, transforming wireframes into fully functional digital experiences. Conducted user research and interviews, applying findings to enhance UI/UX and align with user preferences. Led the migration from AngularJS to Angular 10, improving system performance and modernizing the platform. Redesigned key workflows in Figma, creating a cohesive design language that streamlined user interactions. Rolled out comprehensive UI updates in Angular, ensuring consistency across the platform. Applied research-driven insights to enhance feature adoption and boost overall user satisfaction.

Chief Technology Officer at Crystal Lions .llc

June 1, 2018 - February 1, 2021

Directed UI/UX consulting, team management, and project delivery to meet business objectives. Developed and launched websites using Google Firebase for hosting and scalability. Oversaw branding initiatives, including logo, product, and web design. Provided technical leadership, ensuring adherence to quality and timeline expectations. Fostered innovation within teams, encouraging the adoption of modern technologies.

Lead Front-end Developer at Radix Technologies Ltd.

March 1, 2016 - March 1, 2019

Managed and mentored a team of front-end developers, facilitating onboarding and skill development. Conducted user interviews and surveys within the system to gather feedback, improving workflows and feature usability. Migrated legacy systems from AngularJS to Angular, implementing a modern framework and design language. Developed client-facing web apps optimized for “student” devices, ensuring seamless functionality. Designed and implemented new UI features for the teacher admin system, enhancing usability. Built REST API services and managed database integrations with MongoDB.

Senior Front-end Developer at Radix Technologies Ltd.

February 1, 2015 - March 1, 2016

Conducted UX research, including user surveys, to refine system designs and enhance user interaction. Rebuilt UI systems using AngularJS 1.6 and Material Design, aligning with modern UX standards. Enhanced performance through minification and task automation using Gulp.js. Developed interactive whiteboard features with Canvas.js, supporting text, shapes, and image manipulation. Refactored logic and UI workflows to streamline user interaction and improve accessibility.

Front-end Developer at Radix Technologies Ltd.

January 1, 2013 - February 1, 2015

Developed a complex Mobile Device Management (MDM) system using AngularJS and Bootstrap. Conducted UI/UX research and applied industry styling standards to optimize user experience. Managed QA processes, including bug tracking and ticket management in Jira. Designed REST APIs and integrated SQL services to support app functionalities.

Project Manager at MOTO COMMUNICATIONS

April 1, 2011 - January 1, 2012

Directed the migration of the company website, revamping its structure, design, and functionality. Coordinated with designers and developers to ensure a user-focused approach to the redesign. Performed QA testing, logging issues and overseeing resolutions to maintain quality standards. Trained staff on the new admin system, ensuring seamless adoption of updated tools and processes.

Marketing/Data Analyst at Traffic ,Newsletters And Media

December 1, 2010 - April 1, 2011

Analyzed user data and created detailed reports using Google Analytics and SQL. Managed ad-media operations, overseeing campaigns via OpenX and DoubleClick. Designed and distributed newsletters to a user base of 40,000+, improving engagement rates.

Frontend Developer at Lehavi Solutions

February 1, 2007 - October 1, 2009

Built web applications using C#, ASP.NET, and SQL, achieving a 30% improvement in site responsiveness. Translated PSD designs into functional, pixel-perfect web pages. Collaborated with cross-functional teams to ensure project requirements were met on time and within scope.

Senior Frontend Engineer / UX Architect (Shopify) at sofsy

June 1, 2025 - December 1, 2025

Led UX architecture and frontend rebuild for a complex multi-skin Shopify ecosystem. Designed scalable theme structures using metafields, metaobjects, and modular sections; delivered responsive, high-performance UI components across Liquid, JavaScript, and modern CSS. Drove conversion-focused UX and UI improvements in collaboration with design and marketing teams, and provided guidance on performance, SEO, and long-term UX workflow scalability.

Lead Frontend Engineer / UX Lead at Sounds Good Agency | Shopify Experts

December 1, 2023 - March 1, 2025

Led UX initiatives that integrated user-centric design principles with business goals. Leveraged insights from Google Analytics, Hotjar, and A/B testing to refine user flows, successfully decreasing bounce rates. Championed mentorship, oversaw end-to-end project execution, and fostered adoption of cutting-edge technologies to elevate design workflows and development efficiency.

Lead Developer | Shopify Expert at Sounds Good Agency | Shopify Experts

July 1, 2022 - December 1, 2023

Engineered a scalable front-end framework tailored for Shopify, enhancing development efficiency across multiple projects. Translated behavioral data from Hotjar and Google Analytics into UX improvements; guided junior developers with code reviews and mentorship. Executed A/B tests to refine UI elements, resulting in a measurable increase in conversions.

Traffic, Newsletters And Media

December 1, 2010 - April 1, 2011

Analyzed user data with Google Analytics and SQL; managed ad-media campaigns and newsletters, reaching a large user base and driving engagement.