I’m a Senior Full-Stack & Backend Engineer with 10+ years of experience building scalable, high-performance systems across FinTech, healthcare, MedTech, and AI-driven platforms. I specialize in Java/Kotlin, TypeScript/Node.js, Python, Golang, and modern DevOps tooling, with deep expertise in microservices, distributed systems, cloud infrastructure, and event-driven architecture. I’ve worked with global teams and delivered production-grade SaaS platforms, AI workflows, automation systems, system redesigns, and complex backend integrations. I’m also highly experienced with AI/LLM integrations, LangChain, vector databases, and multi-agent systems—helping companies ship real applied AI products, not just demos. What sets me apart is my ability to take ownership end-to-end: architecture, clean code, DevOps, CI/CD, troubleshooting, and delivering durable solutions that scale. I work fully remote from Serbia, move fast, communicate clearly, and consistently help clients ship high-quality features with reliability and long-term stability in mind.…

Milutin Rankovic

I’m a Senior Full-Stack & Backend Engineer with 10+ years of experience building scalable, high-performance systems across FinTech, healthcare, MedTech, and AI-driven platforms. I specialize in Java/Kotlin, TypeScript/Node.js, Python, Golang, and modern DevOps tooling, with deep expertise in microservices, distributed systems, cloud infrastructure, and event-driven architecture. I’ve worked with global teams and delivered production-grade SaaS platforms, AI workflows, automation systems, system redesigns, and complex backend integrations. I’m also highly experienced with AI/LLM integrations, LangChain, vector databases, and multi-agent systems—helping companies ship real applied AI products, not just demos. What sets me apart is my ability to take ownership end-to-end: architecture, clean code, DevOps, CI/CD, troubleshooting, and delivering durable solutions that scale. I work fully remote from Serbia, move fast, communicate clearly, and consistently help clients ship high-quality features with reliability and long-term stability in mind.…

Available to hire

I’m a Senior Full-Stack & Backend Engineer with 10+ years of experience building scalable, high-performance systems across FinTech, healthcare, MedTech, and AI-driven platforms. I specialize in Java/Kotlin, TypeScript/Node.js, Python, Golang, and modern DevOps tooling, with deep expertise in microservices, distributed systems, cloud infrastructure, and event-driven architecture.

I’ve worked with global teams and delivered production-grade SaaS platforms, AI workflows, automation systems, system redesigns, and complex backend integrations. I’m also highly experienced with AI/LLM integrations, LangChain, vector databases, and multi-agent systems—helping companies ship real applied AI products, not just demos.

What sets me apart is my ability to take ownership end-to-end: architecture, clean code, DevOps, CI/CD, troubleshooting, and delivering durable solutions that scale. I work fully remote from Serbia, move fast, communicate clearly, and consistently help clients ship high-quality features with reliability and long-term stability in mind.

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Skills

Experience Level

TypeScript
Expert
AWS
Expert
JavaScript
Expert
Docker
Expert
Java
Expert
Kubernetes
Expert
Kotlin
Expert
PostgreSQL
Expert
Python
Expert
GitHub
Expert
Node.js
Expert
HTML5
Expert
CSS
Expert
SQL
Expert
Redis
Expert
Ruby on Rails
Expert
MySQL
Expert
API
Expert
MongoDB
Expert
GraphQL
Expert
Django
Expert
Express
Expert
Tailwind
Expert
Vue.js
Expert
Elasticsearch
Expert
Selenium
Expert
Spring
Expert
Go
Expert
PyTorch
Expert
React Native
Expert
Golang
Expert
PHP
Expert
Oracle
Expert
TensorFlow
Expert
Jira
Expert
AngularJS
Intermediate
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Language

English
Fluent
Serbian
Fluent

Work Experience

Senior Full Stack Engineer at Zelh Tech
September 1, 2021 - November 5, 2025
End-to-end development of scalable, cloud-native web platforms for global clients. Used Kotlin, TypeScript/React, and AWS to build high-performance systems. Integrated AI/LLM automation pipelines using Python and vector databases.
Senior Software Engineer (Backend Focused) at Brocoders
August 31, 2021 - August 31, 2021
Backend-focused development across multiple web and mobile apps for international clients. Built robust APIs and microservices using Kotlin/Java/Ruby on Rails, PostgreSQL and MongoDB; deployed on AWS; integrated RESTful APIs; led CI/CD pipelines.
Full Stack Developer (Frontend Focused) at TechVerx
August 31, 2018 - August 31, 2018
Frontend development using Vue, React, JavaScript/TypeScript; built enterprise-grade web apps; implemented responsive UIs with Tailwind CSS and HTML/CSS; integrated RESTful services; collaborated with backend teams.
Junior Backend Developer at Finoit
October 1, 2013 - July 1, 2015
I began my professional journey as a backend developer, gaining hands-on experience with Python (Django, Flask), C++, and .NET/C# while contributing to internal and client-facing web applications. I focused on building maintainable backend systems, designing clean APIs, and learning the fundamentals of database design, debugging, and performance optimization under senior developer mentorship. This period strengthened my understanding of backend architecture and cross-language problem-solving. • Developed RESTful APIs and backend modules using Python (Django, Flask) and .NET/C#. • Implemented data models and queries in MySQL to ensure consistency and performance. • Built and optimized core logic components in C++ for backend processing. • Assisted in integrating APIs with frontend and mobile clients. • Created and maintained unit tests to support stable feature releases. • Participated in Agile sprints and learned modern software development workflows.
Senior Full Stack Engineer at Zelh Tech
September 1, 2021 - November 16, 2025
Led end-to-end development of scalable, cloud-native web platforms for global clients. Proficient in Kotlin, TypeScript/React, and AWS. Integrated AI/LLM automation using Python and vector databases (pgvector, Pinecone). Key projects included AI-powered semantic analytics, Workforce Management System for team scheduling and task tracking, and a Developer Operations Hub for internal monitoring and deployment automation. Built backend microservices in Kotlin deployed on AWS.
Senior Software Engineer (Backend Focused) at Brocoders
September 1, 2018 - November 16, 2025
Led backend development for multiple web and mobile apps for international clients, including Fitness Tracking App, E-Learning Platform, and Marketplace Application. Built scalable APIs and cloud-native services using Node.js, Java, Ruby on Rails, and PostgreSQL. Designed and maintained REST APIs with frameworks such as Spring Boot, .NET, and Laravel. Collaborated with mobile teams (React Native, Flutter) to define efficient API schemas and real-time features using WebSockets. Deployed frontend apps using Docker and Jenkins pipelines to streamline releases.
Full Stack Developer (Frontend Focused) at TechVerx
September 1, 2018 - September 1, 2018
Developed enterprise-grade web platforms using Vue, React, and HTML/CSS/TypeScript. Delivered modern, responsive interfaces for Enterprise CRM, Financial Dashboard, and Client Portal. Collaborated with backend teams using Java, C#/NET, and PHP to implement cohesive UX and performance optimizations; integrated REST APIs via Spring Boot, .NET, and Laravel; and improved load speeds and accessibility. Participated in Agile sprints, code reviews, and daily stand-ups to ensure on-time delivery.
Junior Backend Developer
July 1, 2015 - July 1, 2015
Began professional journey as a backend developer, gaining hands-on experience with Python, C, and .NET/C# while contributing to internal and client-facing web apps.

Education

Bachelor's Degree in Computer Science at University of Novi Sad, Faculty of Electrical Engineering
October 1, 2009 - June 30, 2013
Bachelor's Degree in Computer Science at University of Novi Sad, Faculty of Electrical Engineering
October 1, 2009 - November 16, 2025

Qualifications

Oracle Certified Professional Certification
January 1, 2024 - November 6, 2025
AWS Certified AI Practitioner
January 1, 2025 - November 6, 2025
Java Oracle Certified Associate Certification
January 1, 2025 - November 6, 2025
Spring Professional Certification
January 11, 2030 - October 16, 2025
AWS Certified Developer
January 11, 2030 - November 3, 2025
Oracle Certified Professional
January 1, 2024 - November 16, 2025
AWS Certified AI Practitioner
January 1, 2025 - November 16, 2025
Java Oracle Certified Associate
January 1, 2025 - November 16, 2025

Industry Experience

Healthcare, Software & Internet, Transportation & Logistics, Financial Services, Media & Entertainment, Professional Services, Computers & Electronics
    paper Developer Operations Hub

    A DevOps automation and monitoring platform developed to streamline CI/CD processes, infrastructure visibility, and release tracking across multiple environments. The platform automated environment provisioning and system monitoring using Kubernetes, ArgoCD, Terraform, and GitHub Actions, reducing manual workload and error rates.

    paper AI-Driven Data Platform

    Developed an AI-powered semantic analytics platform that processed large environmental and operational datasets using LLMs. Built scalable microservices in Kotlin and deployed them on AWS. Integrated Python-based AI pipelines and vector databases for real-time data insights.