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janko3108

Janko Leskovac

@janko3108

Shopify and full stack web developer

Croacia
Inglés, Croata, Alemán
Parte de la información aparece en idioma inglés.
Sobre mí
I'm a full-stack developer in Zagreb, Croatia. At COI Agency I build and maintain Shopify stores for Scandinavian brands. On Fiverr I customize Shopify themes and write custom Liquid code, speed up slow stores, and build fast, search-friendly websites for small businesses. I take a project from the first plan to launch and explain each step in plain English. I speak English and Croatian natively and German conversationally. Message me with what you need, and I'll reply with a clear plan, a price and a timeline.... Lee más

Habilidades

j
janko3108
Janko Leskovac
desconectado • 

Revisa mis servicios

Personalización
I will customize your shopify theme and write custom liquid code
DeUSD 60 / proyectoMás información
Optimización de velocidad
I will speed up your shopify store and improve core web vitals
DeUSD 80 / proyectoMás información

Porfolio

Experiencia laboral

coi

Full-Stack Developer

coi

Aug 2025 - Present • 1 yr 3 mos

- Delivered Shopify migrations and data imports (Matrixify/CSV): variants, vendors, inventory, images. - Built Liquid theme features and high-variant product page templates for multi-market storefronts. - Automated operations with Shopify Flow, APIs and Zapier/Make, reducing manual work. - Led client delivery: requirements, SEO redirects, troubleshooting and clear handovers. - Wrote internal docs and scripts to standardize QA and launch checklists.

Rochester_Institute of Technology

Teaching Assistant

Rochester Institute of Technology

Sep 2023 - May 2026 • 2 yrs 8 mos

- Tutored and supported students in Web & Mobile I & II (HTML5, CSS, JS, UNIX, PHP), Software Development & Problem Solving II (Java), Applied Data Structures and Algorithms (Java, data structures, Big-O) and Database Connectivity & Access (Java, MySQL). - Ran one-on-one and group sessions to help students understand complex programming concepts and database operations.

ViveLaCar

Full-Stack Developer

ViveLaCar

May 2024 - Feb 2025 • 9 mos

- Developed and maintained a Magento-based platform for a car dealership, using PHP, SCSS, HTML and JavaScript. - Collaborated with a cross-functional team to improve user experience through SEO-focused design and optimization. - Diagnosed and resolved complex issues, keeping the platform stable and reliable. - Streamlined workflow and project management with GitLab and Jira, improving task tracking and team efficiency.