Looking for a job

Dejan Babić

@dejanbabi

Message

I build production web and mobile apps from database to UI.

Serbia

Message

What I'm looking for

I'm open to remote B2B contracts where I can build production web or mobile features end to end, contribute to technical planning, and lead delivery across payments, platforms, and user-facing products.

I've spent 5+ years building production web and mobile applications with React, React Native, and Node.js, taking features from database schema through to the UI.

At Diligent Software, I built AceGame's payment, subscription, and PayPal payout backend for a short-form video social app designed to scale to 100K daily active users. I also implemented HLS streaming and CDN delivery, cutting video load times by 2–3x.

I've led delivery for Niš Ekspres, an online bus ticketing platform covering several hundred bus lines, including third-party API integrations and secure payment flows. I also built multi-tenant platforms for agriculture and hotel maintenance, including a mobile app and automatic maintenance-task delegation.

Previously at UnderIT, I developed marketplace features for Serbia's Ministry of Agriculture and led a large internal media monitoring and research platform. I use AI tools daily across planning, development, and debugging, and I'm open to remote B2B contracts.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

Diligent Software

Apr 2024 - Present (2 years 5 months)

Designed and built backend for payments, subscriptions, and PayPal payouts for a social app scaled to 100K daily active users. Implemented HLS streaming and CDN delivery, cutting video load times by 2-3x, and led development on multiple projects including a bus ticketing platform and a hotel maintenance system.

React React Native NodeJS PostgreSQL Firestore MySQL Docker Git Azure Jira Amazon Cognito HLS CDN Payment Systems Multi tenant architecture

Full-Stack Developer

UnderIT

Aug 2021 - Mar 2024 (2 years 7 months)

Developed a marketplace platform for the Serbian Ministry of Agriculture and built frontend features for a global review analytics platform. Led development of a large-scale internal media monitoring platform, working directly with leadership to define requirements.