Versatile data professional with extensive experience in data analysis, team leadership, and statistical research. Skilled in data extraction, web scraping, and advanced analytics across multiple domains, with a strong background in mathematics and project management.
Mathematician. Likes puzzles.
Data Analysis
Data Mining
R
Statistics
Data Visualization
Google Sheets
Mathematics
Online Research
Google Docs
Data Extraction
Gabor K.
Senta, Serbia
$75/hr
4.7
53 jobs
Most companies sitting on years of operational data still can't answer their most important questions: What will fail next? Where are we losing money? What should we do differently? I build the AI and ML systems that answer those questions — reliably, in production, not just in demos.
I'm a PhD-trained Senior Applied AI & Data Scientist with 10+ years of experience translating messy, fragmented, domain-specific data into working decision-support systems. My background spans industrial operations, healthcare, agriculture, retail, and oil & gas — environments where the data is imperfect, the stakes are real, and generic solutions don't work.
I have delivered production-ready AI/ML systems across several domains:
- Retail security: anomaly-detection logic for security gate systems in large retail environments
- Agriculture: greenhouse sensor analytics and ML-based decision-support for tomato production optimization
- Oil & gas: production analytics, decline-curve interpretation, geospatial analysis, and forecasting dashboards
- Healthcare: claims analytics, patient population classification, risk grouping, and payment workflow automation
- Travel & pricing: recommendation systems, demand analysis, and personalized pricing automation
- Research: peer-reviewed AI/ML and NLP publications, university-level collaboration
What I typically build:
- Predictive models and forecasting systems for operational and business decisions
- Anomaly detection and risk scoring pipelines
- Time-series and sensor data analysis
- Explainable AI workflows with interpretable outputs for non-technical stakeholders
- End-to-end ML proof-of-concepts and production-ready solutions for startups and enterprise teams
I work best with clients who have a real business or engineering problem and need someone who can navigate unclear requirements, imperfect data, and domain complexity — and deliver something that actually works.
Data Science
Data Analysis
Data Mining
Python
Artificial Neural Network
Deep Neural Network
TensorFlow
Keras
Deep Learning
Classification
Feature Extraction
Deep Learning Modeling
Regression Testing
Plotly
Aleksa T.
Belgrade, Serbia
$40/hr
5.0
5 jobs
I am an AI Engineer with expertise in machine learning, computer vision, predictive modeling, and advanced data analytics. My experience spans the entire machine learning lifecycle—from data preprocessing and model development to deployment on both cloud and edge platforms. I enjoy building intelligent systems that combine technical precision with real-world impact.
With a strong foundation in Python, SQL, AWS, and Databricks, I have applied advanced modeling techniques to solve challenges in object detection, identity verification, forecasting, and visual analytics. My background also includes applying data analysis, event post-processing, and dashboard creation to transform raw data into actionable insights for decision-makers.
I hold a Master’s degree in Electrical Engineering with a focus on Artificial Intelligence and Data Processing. I am passionate about innovation and thrive at the intersection of research and application, where I can leverage AI to create scalable, data-driven solutions that deliver measurable business value.
Data Science
Machine Learning
Natural Language Processing
Python
Generative AI
Computer Vision
Deep Learning
Artificial Intelligence
Data Analytics
Amazon S3
Apache Spark
Big Data
Large Language Model
Databricks Platform
Microsoft Power BI
Tatjana K.
Lazarevac, Serbia
$30/hr
5.0
4 jobs
I’m a Data Science Consultant with a passion for turning raw data into clear, actionable insights. With 5+ years in machine learning, predictive analytics, and data visualization, I use Python, Tableau, Power BI, and SQL to create intuitive dashboards and models for retail, tech, and healthcare clients. My work has improved decision-making, boosting efficiency by 15–30%. Certified in Google Data Analytics, I blend AI tools with strategic consulting to deliver ethical, high-impact solutions. Let’s unlock your data’s potential—contact me today!
🌟 Key Skills: Data Visualization, Machine Learning, Predictive Modeling, Python, SQL, Tableau, Power BI
🌟 Industries: Retail, Tech, Healthcare
🌟 Achievements: Designed a dashboard saving 10 hours/week; predicted customer churn with 85% accuracy
🌟 Certifications: Google Data Analytics Professional, Tableau Desktop Specialist
Data Analysis
Machine Learning
Python
R
Artificial Intelligence
Machine Learning Model
SQL
Deep Learning
TensorFlow
Google Cloud Platform
JavaScript
Java
PyTorch
Keras
XGBoost
Grigory M.
Belgrade, Serbia
$80/hr
5.0
38 jobs
📈 I'm an AI business transformation engineer with a strong passion for mathematical models and artificial intelligence that drive business success. Building upon a solid foundation in Python and classic machine learning, I specialize in designing and implementing AI solutions that align with your business objectives.
🧠 Business-centric AI solutions with low-code prototyping
My expertise lies in deploying and integrating Large Language Models (LLMs) into business workflows. Recognizing that each business has unique needs, I adeptly customize AI solutions to meet specific requirements. Utilizing low-code platforms like n8n and Langflow, I rapidly prototype AI pipelines, enabling quick iterations and seamless integration into existing systems.
For more complex scenarios and product-quality solutions, I leverage Python frameworks such as LangGraph to build stateful, multi-agent LLM applications, ensuring robust and scalable AI solutions.
🤝 Collaborative approach to AI integration
I believe in a collaborative approach, working closely with clients and their teams to understand challenges and goals. This ensures that the AI solutions developed are aligned with your vision and provide tangible benefits. Clear communication and transparency are paramount throughout the project lifecycle, keeping you informed and engaged at every step.
🌟 Proven track record of delivering tailored AI solutions
Clients consistently commend my technical expertise, professionalism, and ability to deliver efficient, high-quality solutions tailored to their needs. From flawless automation development and AI consultation to advanced script adjustments and LLM integrations, I have a proven track record of exceeding expectations. Whether it's enhancing e-commerce operations, building intelligent systems, or streamlining workflows, I am proud to be a trusted partner in driving success.
⚙️ Technologies and tools:
Programming: Python (NumPy, Pandas, Scikit-learn, PyTorch, TensorFlow), JavaScript (Google Apps Script)
Large Language Models: LangChain, LangGraph, OpenAI, Claude, Gemini, Hugging Face Transformers
Low-Code Platforms: n8n, Langflow, Make
Frameworks: FastAPI, Flask
Data Handling: PostgreSQL, Supabase, Elasticsearch
Cloud Services: AWS, Azure, GCP, VPS
Deployment & MLOps: Docker, Kubernetes, MLflow
Data Visualization: Matplotlib, Seaborn, Tableau, Grafana
🚀 Collaborate to transform your business with AI
Whether you're just beginning to explore the possibilities of AI or looking to enhance existing systems, I'm here to support you every step of the way. Let's discuss how we can leverage AI to transform your business processes and unlock new opportunities for growth and innovation.
Data Science
SQL
Python Scikit-Learn
pandas
LLM Prompt Engineering
OpenAI API
n8n
ML Automation
LangChain
AI Consulting
Marko J.
Beli Breg, Serbia
$60/hr
5.0
72 jobs
Dynamic Spatial Data Scientist and Engineer with expertise across the full data journey—from sourcing and transforming data to advanced analysis, modeling, and visualization. Skilled in harnessing the power of spatial data to provide deep insights and drive smarter decision-making.
What I Bring:
- Data Pipeline Mastery: Experienced in building and managing scalable data pipelines that handle large, complex datasets. Proficient in ETL processes and automation to streamline data flows from raw sources to actionable insights.
- Spatial Data Expertise: In-depth knowledge of geographic data systems and spatial analysis, turning location-based data into practical solutions. Proven ability to work with open data sources, tackling challenges in environmental, social, and infrastructure contexts.
- Advanced Analytics & Machine Learning: Skilled in applying machine learning to spatial data, including clustering, predictive models, and pattern detection, to extract insights and reveal trends across regions, populations, or landscapes.
- Big Data & Cloud-Savvy: Adept at handling large datasets in cloud and big data environments, using tools that ensure high performance, scalability, and real-time processing capabilities.
- Insightful Visualization: A natural storyteller with data who is experienced in visualizing complex spatial data to reveal clear, compelling insights.
Committed to making data understandable and impactful for stakeholders and decision-makers.
Driven by curiosity and innovation, I’m passionate about transforming geospatial data into actionable insights that make a real-world difference.
Python
ArcGIS
JavaScript
SQL
Big Data
QGIS
Database Management
GIS
PostGIS
Apache Spark
React
MySQL
Redux
OpenStreetMap
pandas
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