Available to hire
Hi, I’m Marjan Bajc. I’m a Senior Front End Engineer with 8+ years of professional experience and 15+ years in UX/UI design. I specialize in building accessible, responsive web applications, with a strong focus on the Vue ecosystem. I’m passionate about delivering high-quality, production-ready experiences that balance performance, usability, and visuals.
I excel in JavaScript and TypeScript, enjoy mentoring junior developers, and thrive in collaborative, user-centered development. I lead initiatives around testing, accessibility, and design systems, and I’m comfortable bridging frontend work with API integration and backend services (Node.js, Shopify, Laravel/Vue.js). I’m driven by ensuring ADA compliance, implementing robust feature toggles and data-driven decisions, and delivering maintainable, scalable solutions.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
English
Advanced
Serbian
Advanced
Croatian
Advanced
Bosnian
Advanced
Slovene
Fluent
Work Experience
Senior Front End Engineer at Zero
November 1, 2019 - PresentLed authentication and account experience initiatives, significantly improving user conversions and strengthening security protocols. Spearheaded the accessibility council and site-wide ADA updates to enhance the user experience. Orchestrated the transition to Vue 3, leveraging Composition API and contributing to Vuetify council. Developed a sophisticated feature to toggle and run A/B tests using LaunchDarkly, enabling data-driven product decisions. Implemented a comprehensive testing strategy with Cypress (E2E) and Jest (unit tests). Created and maintained synthetic tests and monitoring alerts in DataDog, reducing downtime by 30%. Contributed to the account microservice using Node.js/Fastify and Commerce Tools SDK. Integrated Okta SDK for authentication and secure login/registration functionality. Mentored two junior engineers, accelerating development and improving team productivity.
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 2, 2025Directed optimization for A/B testing and conversion on product pages. Developed and maintained the React code base for crateandbarrel.com and cb2.com, improving site performance metrics. Collaborated with UX teams to implement responsive design patterns for a consistent cross-device experience.
Front End Developer at SDG
January 1, 2019 - October 2, 2025Translated design specifications into responsive, cross-browser front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency's e-commerce client eTel.
Senior Front End Engineer at Zoro.com
November 1, 2019 - PresentLed authentication and account experience initiatives, significantly improving user conversion rates and enhancing security protocols. Spearheaded the accessibility council, implementing site-wide ADA compliance updates and improving user experience. Orchestrated the transition to Vue 3 leveraging the Composition API with Vue 2.7 and contributed to the Vuetify council. Developed a sophisticated feature to toggle and A/B testing system using LaunchDarkly, enabling data-driven product decisions. Implemented a comprehensive testing strategy using Cypress for E2E and Jest for unit testing. Created and maintained synthetic tests and monitoring alerts in DataDog, reducing system downtime. Contributed to the account microservice using Node.js/Fastify and Commerce Tools SDK. Mentored junior engineers, accelerating their development and boosting team productivity.
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 9, 2025Directed A/B testing and optimized conversion rates on product pages. Developed and maintained the React codebase for crateandbarrel.com and cb2.com, improving site performance metrics. Collaborated with UX teams to implement responsive design patterns for a consistent experience across devices.
Front End Developer at SDG
January 1, 2019 - October 9, 2025Translated design specifications into responsive front-end code for e-commerce clients on the Shopify platform; estimated project timelines and costs for major client initiatives; collaborated with creative and development teams to execute client vision and requirements; specialized in Shopify platform development using Laravel/Vue.js; built maintainable, scalable solutions for the agency's e-commerce client site.
Senior Front End Engineer at Zoro.com
November 1, 2019 - PresentLed authentication and account experience initiatives, significantly improving user conversion rates and enhancing security protocols. Spearheaded the accessibility council, implementing site-wide updates to ensure ADA compliance and improve user experience. Orchestrated the transition to Vue 3, leveraging Composition API with Vue 2.7 and contributing to the Vue ecosystem. Developed a sophisticated feature toggling A/B testing system using LaunchDarkly to enable data-driven product decisions. Implemented a comprehensive testing strategy with Cypress (E2E) and Jest (unit). Created and maintained synthetic tests and monitoring alerts in DataDog, reducing downtime. Contributed to the account microservice using Node.js/Fastify and Commerce Tools SDK. Integrated Okta SDK for authentication with secure login/registration. Mentored junior engineers, accelerating their development and improving team productivity.
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 9, 2025Directed implementation of A/B testing and optimization of conversion rates on product pages. Developed and maintained the React codebase for crateandbarrel.com and cb2.com, improving site performance metrics. Collaborated with UX teams to implement responsive design patterns across devices.
Front End Developer at SDG
January 1, 2019 - October 9, 2025Translated design specifications into responsive front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency's e-commerce client base.
Senior Front End Engineer at Zoro
November 1, 2019 - PresentLed authentication and account experience initiatives, significantly improving user conversion rates and enhancing security protocols. Spearheaded the accessibility council, implementing site-wide updates to ensure ADA compliance and enhance the user experience. Orchestrated the transition to Vue 3, leveraging Composition API with Vue 2.7 and actively contributing to the Vue/Vuetify ecosystem. Developed a sophisticated feature to toggle and A/B test systems using LaunchDarkly, enabling data-driven product decisions. Implemented a comprehensive testing strategy with Cypress for E2E tests and Jest for unit tests. Created and maintained synthetic tests and monitoring alerts in DataDog, reducing system downtime. Contributed to the account microservice using Node.js/Fastify and Commerce Tools SDK. Integrated Okta SDK for authentication, implementing secure login/register functionality. Mentored junior engineers (two SE1, one SE2), accelerating their development and improving team productivi
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 9, 2025Directed and optimized implementation for A/B testing, improving conversion rates on product pages. Developed and maintained the React code base for crateandbarrel.com and cb2.com, improving site performance metrics. Collaborated with UX teams to implement responsive design patterns for a consistent user experience across devices.
Front End Developer at SDG
January 1, 2019 - October 9, 2025Translated design specifications into responsive, cross-browser front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency's e-commerce client portfolio.
Senior Front End Engineer at Zoro
November 1, 2019 - PresentLed authentication and account experiences, significantly improving user conversion rates and enhancing security protocols.
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 9, 2025Directly implemented A/B testing, optimized conversion rates on product pages; developed and maintained the React codebase for crateandbarrel.com and cb2.com.
Front End Developer at SDG
January 31, 2019 - October 9, 2025Translated design specs into responsive front-end code for e-commerce clients; collaborated on Shopify platform development using Laravel/Vue.js; built scalable solutions for agency's e-commerce clients.
Senior Front End Engineer at Zoro
November 1, 2019 - PresentLed authentication and account experience initiatives, significantly improving user conversion rates and security protocols. Spearheaded the accessibility council, implementing site-wide ADA-compliant updates and enhancing user experience. Orchestrated the transition to Vue 3 with the Composition API, and contributed to the Vue ecosystem. Developed a feature to toggle A/B testing with LaunchDarkly for data-driven decisions. Implemented a testing strategy using Cypress (E2E) and Jest (unit). Created and maintained synthetic tests and monitoring alerts in DataDog, reducing downtime by 30%. Contributed to the account microservice using Node.js/Fastify and Commerce Tools SDK. Mentored junior engineers (two SE1, one SE2) to accelerate development and productivity.
Senior Front End Developer at Crate & Barrel
October 1, 2019 - October 26, 2025Directed A/B testing initiatives, optimizing product page conversions. Developed and maintained the React codebase for crateandbarrel.com and cb2.com, improving site performance metrics. Collaborated with UX teams to implement responsive design patterns. Specialized in Shopify platform development with custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency’s e-commerce clients.
Front End Developer at SDG
January 1, 2019 - October 26, 2025Translated design specifications into responsive, cross-browser compatible front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency’s e-commerce clients.
Front End Developer at SDG
August 1, 2015 - January 1, 2019Translated design specifications into responsive, cross-browser compatible front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js. Built maintainable, scalable solutions for the agency's e-commerce clientele.
Front End Developer at SDG | sdg.la
August 1, 2015 - January 31, 2019Translated design specifications into responsive, cross-browser front-end code for e-commerce clients. Estimated project timelines, costs, and resource requirements for major client initiatives. Collaborated with creative and development teams to execute client vision and requirements. Specialized in Shopify platform development and custom projects using Laravel/Vue.js.
Education
Qualifications
Industry Experience
Software & Internet, Media & Entertainment, Professional Services, Retail
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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