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I'm a frontend engineer with over 5 years of experience building user-friendly, responsive web applications. I specialize in crafting smooth user interfaces using React, Ember, TypeScript, and CSS, and I enjoy turning complex requirements into intuitive experiences. I value collaboration, continuous learning, and delivering high-quality code. I’m always eager to explore new technologies, share knowledge with peers, and contribute to solutions that elevate user satisfaction and business outcomes.…I'm a frontend engineer with over 5 years of experience building user-friendly, responsive web applications. I specialize in crafting smooth user interfaces using React, Ember, TypeScript, and CSS, and I enjoy turning complex requirements into intuitive experiences. I value collaboration, continuous learning, and delivering high-quality code. I’m always eager to explore new technologies, share knowledge with peers, and contribute to solutions that elevate user satisfaction and business outcomes.

Karlo Šeler

Front-End Developer, Web Developer, Developer, +2

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I'm a frontend engineer with over 5 years of experience building user-friendly, responsive web applications. I specialize in crafting smooth user interfaces using React, Ember, TypeScript, and CSS, and I enjoy turning complex requirements into intuitive experiences. I value collaboration, continuous learning, and delivering high-quality code. I’m always eager to explore new technologies, share knowledge with peers, and contribute to solutions that elevate user satisfaction and business outcomes.…I'm a frontend engineer with over 5 years of experience building user-friendly, responsive web applications. I specialize in crafting smooth user interfaces using React, Ember, TypeScript, and CSS, and I enjoy turning complex requirements into intuitive experiences. I value collaboration, continuous learning, and delivering high-quality code. I’m always eager to explore new technologies, share knowledge with peers, and contribute to solutions that elevate user satisfaction and business outcomes.

Next availability:

January 26, 2026

Zagreb, Croatia

I’m a frontend engineer with over 5 years of experience building user-friendly, responsive web applications. I specialize in crafting smooth user interfaces using React, Ember, TypeScript, and CSS, and I enjoy turning complex requirements into intuitive experiences.

I value collaboration, continuous learning, and delivering high-quality code. I’m always eager to explore new technologies, share knowledge with peers, and contribute to solutions that elevate user satisfaction and business outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Beginner

Language

English

Advanced

Work Experience

Frontend Engineer at Productive.io

January 23, 2023 - Present

Developed and owned key features in Ember.js, contributed to upselling features (Gantt layout, employee workload layout), contributed to real-time Docs using ProseMirror, integrated OpenAI with Docs, wrote E2E tests with Puppeteer, Cucumber and Gherkin, and authored onboarding guidelines for new team members.

Software Engineer at EPAM Systems

May 5, 2022 - December 30, 2022

Collaborated with a BAU team on Primark project; implemented Click and Collect journey; contributed to Oracle Cerner Terra UI open-source framework; fixed bugs affecting new features; deployed features; updated user manuals and technical docs.

UI Developer at CloudSense Ltd.

October 1, 2020 - April 29, 2022

Increased reusability and maintainability by developing two internal UI libraries (form input library and grid input library) used across Salesforce-based applications; established testing standards and documentation for internal UI libraries; collaborated on internal documentation app for UI design system; conducted onboarding, mentoring and code review sessions for new team members.

Junior UI Developer at CloudSense Ltd.

January 1, 2020 - October 1, 2020

Developed and optimized user interfaces across multiple Salesforce-based applications; debugged and resolved front-end issues to enhance performance and usability; collaborated on design and development of internal design system; applied accessibility standards (WCAG).

Junior Software Tester at CloudSense Ltd.

July 23, 2018 - December 31, 2019

Responsible for quality assurance of 2 Salesforce platform applications; identified, documented, and tracked defects; performed regression testing; collaborated with cross-functional teams to understand business requirements and translate them into test scenarios.