Open to opportunities

Nikola Rebic

@nikolarebic

Message

I build scalable full-stack SaaS and AI-powered applications with React, Node.js, and OpenAI.

Serbia

Message

What I'm looking for

I'm looking to build scalable full-stack and AI-powered products, applying clean architecture, performance optimization, cloud deployment, and direct client collaboration.

I've delivered full-stack web applications for international clients at ALTEN Technology, owning architecture, development, and deployment independently.

I build scalable frontend interfaces with React and TypeScript, and backend services and REST/GraphQL APIs using Node.js and NestJS. I also design MongoDB schemas, optimize queries, and integrate authentication, payments, and third-party services.

As a self-employed Senior Software Developer, I've built scalable applications with React, TypeScript, Node.js, and PHP from design through deployment. I've integrated OpenAI API features for chatbots, automation, and intelligent workflows, including RAG pipelines.

Earlier at CodeWave and Inspira grupa, I developed responsive interfaces, reusable UI systems, automated AWS deployments, and Python-based internal tools. I focus on clean code, performance optimization, maintainability, and timely delivery in Agile teams.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

Self Employed

Mar 2024 - Present (2 years 6 months)

Developed scalable full-stack applications using React, TypeScript, Node.js, and PHP frameworks from design to deployment. Integrated AI features using OpenAI API and optimized backend performance through API optimization and cloud deployment.

React TypeScript Node PHP OpenAI API AWS Docker Agile Performance Optimization

Senior Software Developer

ALTEN Technology - NL

Sep 2020 - Feb 2024 (3 years 5 months)

Delivered full-stack web applications for international clients, handling architecture, development, and deployment independently. Built scalable frontend interfaces with React and TypeScript, and designed backend services with Node.js and NestJS.

React TypeScript Node NestJS REST GraphQL MongoDB AWS Docker CI CD Agile

FullStackDeveloper

CodeWave

Mar 2017 - Aug 2020 (3 years 5 months)

Developed dynamic, interactive user interfaces using Angular and React.js, implementing state management with NgRx and Redux. Built responsive UI layouts and wrote comprehensive unit and integration tests.

Angular React NgRX Redux Material UI Bulma Jasmine Enzyme JavaScript TypeScript

FullStackDeveloper

Inspira grupa

Sep 2014 - Feb 2017 (2 years 5 months)

Architected and developed scalable UI components using JavaScript, jQuery, and Backbone.js, ensuring compatibility with legacy systems. Implemented automated deployment pipelines and integrated RESTful APIs and WebSocket connections.