Benjamin Velić
Benjamin VelićBugojno, BA · working worldwide · CET

FULL STACK
DEVELOPER

From junior to senior on one product: ZIK Analytics, market research used by 159,000+ sellers. Migrations, architecture, performance — shipped, not slide-decked.

See the work ↓
159K+users on platform I build
9 yrsexperience
3solo products shipped

EXPERIENCE

2017 — TODAY
  1. 2022 — 2026

    Senior Full Stack Developer

    CURRENT
    ZIK Analytics · eBay & Amazon market research SaaS, 159,000+ sellers

    Led the migration of a legacy C# MVC monolith to React, Next.js and .NET Core — delivered without disrupting a 159,000+ user base.

    Owned frontend architecture; introduced TypeScript; built the AI agent chat frontend.

    Cut page load and API response times platform-wide through rendering strategy, bundle reduction and query optimization.

  2. 2025 — 2026

    Freelance Full Stack Developer

    Electronic Kuna · solo contractor

    Delivered an internal business management system end to end: React Native mobile app, Electron desktop app and a Node.js REST API sharing one backend — requirements through delivery, directly with the client.

  3. 2017 — 2022

    Junior → Mid-Level Developer

    ZIK Analytics · early-stage startup phase

    Joined as a junior and grew with the product as it scaled; promoted to mid-level in 2019 after independently owning full features end to end, from database schema to UI.

01 / FLAGSHIP · 2017–2026

ZIK ANALYTICS

Led the legacy C# MVC → React/Next.js migration for a live product with 159,000+ users. Zero disruption. Then made it fast.

Read case study: ZIK ANALYTICS →
The ZIK Analytics dashboard — market insights, trending products and seller data
02 / SOLO SAAS

QRBOOK

Restaurant QR menus with real-time updates, analytics and subscriptions. Every line — auth to SEO — mine.

Read case study: QRBOOK →
A live QRbook menu on a phone
03 / SOLO PLATFORM

POSLOVNO.BA

B2B/B2C platform on a 390,000-company registry. Data model, ingestion, search, verification — and the frontend on top.

Read case study: POSLOVNO.BA →
Poslovno.ba company search and marketplace on a monitor
04 / FREELANCE · 2025–2026

ELECTRONIC KUNA

An internal business management system delivered end to end — React Native, Electron and a Node.js API on one backend. Requirements to delivery, direct with the client.

Read case study: ELECTRONIC KUNA →
Electronic Kuna — daily dispatch on desktop and mobile

STACK

TypeScriptJavaScriptC#ReactNext.jsReact NativeElectron.NET CoreNode.jsMS SQLMongoDBPrismaTailwindReduxZustandTanStack Query