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Hi, I’m Ivan Delaš, a product-focused software engineer with 7+ years building and maintaining web applications, strong Ruby on Rails and PostgreSQL experience, and modern JavaScript frontend delivery. I enjoy turning complex requirements into solid data models, scalable APIs, and reliable UI. I’m comfortable owning the full delivery lifecycle—from data modeling and query optimization to API integrations and production-minded maintenance. My recent focus at SONO IT involves high-density admin workflows in vanilla JavaScript using Web Components for planning, analytics, GIS, and reporting. I’m a clear communicator with a background in professional writing/editing and a Master’s in Business Economics.…Hi, I’m Ivan Delaš, a product-focused software engineer with 7+ years building and maintaining web applications, strong Ruby on Rails and PostgreSQL experience, and modern JavaScript frontend delivery. I enjoy turning complex requirements into solid data models, scalable APIs, and reliable UI. I’m comfortable owning the full delivery lifecycle—from data modeling and query optimization to API integrations and production-minded maintenance. My recent focus at SONO IT involves high-density admin workflows in vanilla JavaScript using Web Components for planning, analytics, GIS, and reporting. I’m a clear communicator with a background in professional writing/editing and a Master’s in Business Economics.

Ivan Delaš

Full Stack Developer, Web Developer, Back-End Developer, +2

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Hi, I’m Ivan Delaš, a product-focused software engineer with 7+ years building and maintaining web applications, strong Ruby on Rails and PostgreSQL experience, and modern JavaScript frontend delivery. I enjoy turning complex requirements into solid data models, scalable APIs, and reliable UI. I’m comfortable owning the full delivery lifecycle—from data modeling and query optimization to API integrations and production-minded maintenance. My recent focus at SONO IT involves high-density admin workflows in vanilla JavaScript using Web Components for planning, analytics, GIS, and reporting. I’m a clear communicator with a background in professional writing/editing and a Master’s in Business Economics.…Hi, I’m Ivan Delaš, a product-focused software engineer with 7+ years building and maintaining web applications, strong Ruby on Rails and PostgreSQL experience, and modern JavaScript frontend delivery. I enjoy turning complex requirements into solid data models, scalable APIs, and reliable UI. I’m comfortable owning the full delivery lifecycle—from data modeling and query optimization to API integrations and production-minded maintenance. My recent focus at SONO IT involves high-density admin workflows in vanilla JavaScript using Web Components for planning, analytics, GIS, and reporting. I’m a clear communicator with a background in professional writing/editing and a Master’s in Business Economics.

Available to hire

Hi, I’m Ivan Delaš, a product-focused software engineer with 7+ years building and maintaining web applications, strong Ruby on Rails and PostgreSQL experience, and modern JavaScript frontend delivery. I enjoy turning complex requirements into solid data models, scalable APIs, and reliable UI. I’m comfortable owning the full delivery lifecycle—from data modeling and query optimization to API integrations and production-minded maintenance.

My recent focus at SONO IT involves high-density admin workflows in vanilla JavaScript using Web Components for planning, analytics, GIS, and reporting. I’m a clear communicator with a background in professional writing/editing and a Master’s in Business Economics.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Work Experience

Software Developer (Frontend-heavy) at SONO IT d.o.o.

January 1, 2024 - Present

Build and maintain Web Office admin tooling in modern vanilla JavaScript using Web Components for planning and analytics workflows. Integrate with backend APIs; deliver data-heavy modules (routing, calendar scheduling, visit analytics) with maps/charts and export tooling. Create reusable UI components and patterns to keep a growing codebase consistent and maintainable; apply practical UI security hardening.

Software Developer (Full-stack) at Kodius

November 1, 2017 - January 1, 2024

FlexCareers (Ruby on Rails, PostgreSQL, AWS): developed features across multiple user roles and subdomains; improved stability/test coverage; fixed performance bottlenecks and bugs. Wrote direct SQL and implemented native PostgreSQL full-text search (tsvector) for advanced querying and filtering on large datasets. Performed Rails upgrades, integrated third-party API providers, and supported production operations on AWS. Musicsupervisor / WeGetArtists (Rails + MySQL backend, Vue/Nuxt frontend): connected backend and frontend via API; delivered pixel-perfect UI aligned with design specs. Deployko (Rails): developed and maintained an internal deployment tool used to deploy Kodius projects to their hosting service. Vizitko (Rails): built an app that generates and stores VCF files, shareable via vCard for adding contacts to phones using NFC.