Looking for a job

Nikola Petrovic

@nikolapetrovic3

Message

Backend developer at DrivxToken building a live multi-chain crypto presale platform with on-chain and fiat payments.

Serbia

Message

At DrivxToken, I build the backend for a live multi-chain crypto presale platform handling on-chain and fiat payments across BNB Chain, Ethereum, and Solana. I developed payment verification and a custom JSON-RPC client, and created a queue-based token distribution system that cut gas costs by about 50–60%.

Before DrivxToken, I developed backend systems for enterprise ERP and client platforms in logistics, healthcare, and tire retail. I integrated SSO and calendar sync with Google Calendar and Outlook/Microsoft 365, and handled backend architecture for the ERP platform.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

DrivxToken

Sep 2025 - Present (1 year 2 months)

Developed backend for a live multi-chain crypto presale platform, handling on-chain and fiat payments. Built on-chain payment verification and a custom JSON-RPC client, and implemented a token distribution engine with Redis locking.

PHP Laravel React TypeScript Vite BNB Chain Ethereum Solana Helius JSON RPC Redis Docker AWS OpenZeppelin Reown AppKit WalletConnect Wagmi EthersJS

Freelance Developer

Self Employed

Jan 2022 - Sep 2025 (3 years 8 months)

Provided backend development for a multi-app enterprise ERP system, integrating SSO and calendar sync. Owned backend architecture end to end within a Vagrant-based development environment.

PHP MySQL SSO OAuth Google Calendar Microsoft 365 Vagrant