Open to opportunities

Djordje Simic

@djordjesimic

Message

I build React Native and web platforms for international fintech and marketplace clients.

Serbia

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What I'm looking for

I'm looking to build web and mobile applications for international clients, contributing across frontend, React Native, and API integrations on products with real user impact.

I've built web and mobile products for Dutch, UK, and Serbian clients, including a white-label investment platform for Algo24 and a real-time forex and trading platform for Vanquish Solutions. My work spans custom-branded client onboarding, real-time analytics, interactive maps, vehicle search, booking, and marketplace publishing.

I work across React Native, Expo, React.js, TypeScript, and REST APIs, shipping applications to the App Store and Google Play. I've also developed ERP frontend and desktop POS software while working directly with clients to gather requirements and support an active customer base.

Experience

Work history, roles, and key accomplishments

Frontend Developer

Vehicle Marketplace Platform

May 2026 - Jun 2026 (1 month)

Built a multi-tier vehicle listing platform enabling users to publish listings across multiple Dutch marketplaces simultaneously, including dealer subscription flows. Worked across frontend, mobile, and light backend.

React Native Expo TypeScript JavaScript Redux REST APIs Laravel Git Figma Agile

Frontend Developer

Algo24

Mar 2025 - Jun 2026 (1 year 3 months)

Delivered a white-label web and mobile platform for a Dutch investment fund, enabling fast onboarding of new client firms with fully custom branding.

React Native Expo TypeScript JavaScript Redux REST APIs Git Figma Agile

Frontend Developer

StaySafe

Aug 2025 - Nov 2025 (3 months)

Built a personal safety app enabling users in danger to trigger instant alerts to nearby guardians, with real-time interactive map tracking.

React Native Expo Maps Push Notifications TypeScript JavaScript Redux REST APIs Git Figma Agile

Frontend Developer

Vanquish Solutions

Dec 2023 - Jul 2025 (1 year 7 months)

Developed frontend and mobile apps for a UK hedge fund's forex/trading platform with real-time analytics. Designed a white-label architecture enabling onboarding of new fund clients with independent branding.

React Native Expo TypeScript JavaScript Redux REST APIs Git Figma Agile

Frontend Developer

Car Rental Platform

Jun 2023 - Dec 2023 (6 months)

Built a car rental platform with web and mobile apps featuring interactive map-based vehicle search and booking.

React Native Expo TypeScript JavaScript Redux REST APIs Git Figma Agile

Frontend Developer

Prime Soft

Sep 2021 - Apr 2023 (1 year 7 months)

Developed web frontend and a desktop POS application for a commercial ERP system, working directly with clients to gather requirements and support a large active customer base.

TypeScript JavaScript Redux REST APIs Git Figma Agile