You will get Build Accurate Machine Learning Models for Your Business
Top Rated
Project details
I design and implement custom Machine Learning solutions that transform raw data into actionable insights and measurable business impact. Whether you need predictive models, customer segmentation, anomaly detection, or advanced forecasting, I build reliable systems tailored to your goals.
My approach combines strong foundations in mathematics and statistics with hands-on expertise in Python, R, SQL, TensorFlow, and scikit-learn. I prioritize scalability, clarity, and business relevance: every model is documented, validated, and explained so you can trust and use the results.
With Machine Learning, you can: Anticipate trends and customer behavior, Automate decision-making processes, Optimize pricing, marketing, and operations, Detect risks and anomalies before they cause losses.
By working together, you’ll receive not just technical models, but clear insights and tools that directly support data-driven decisions and business growth.
My approach combines strong foundations in mathematics and statistics with hands-on expertise in Python, R, SQL, TensorFlow, and scikit-learn. I prioritize scalability, clarity, and business relevance: every model is documented, validated, and explained so you can trust and use the results.
With Machine Learning, you can: Anticipate trends and customer behavior, Automate decision-making processes, Optimize pricing, marketing, and operations, Detect risks and anomalies before they cause losses.
By working together, you’ll receive not just technical models, but clear insights and tools that directly support data-driven decisions and business growth.
Machine Learning Tools
Azure Machine Learning, Keras, NumPy, pandas, Python, Python Scikit-Learn, PyTorch, R, scikit-learn, SciPy, TensorFlow, XGBoostWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$450
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 15 days |
Number of Revisions | 1 | 2 | 3 |
Number of Model Variations | 1 | 2 | 5 |
Number of Scenarios | 1 | 2 | 4 |
Number of Graphs/Charts | 1 | 3 | 5 |
Model Validation/Testing | |||
Model Documentation | - | ||
Data Source Connectivity | - | - | |
Source Code | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$30
Additional Model Variation
(+ 2 Days)
+$70
Additional Scenario
(+ 1 Day)
+$30
Additional Graph/Chart
(+ 1 Day)
+$20
Model Documentation
(+ 1 Day)
+$50
Source Code
(+ 2 Days)
+$150Frequently asked questions
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ER
Erik R.
Mar 3, 2026
Upgrade Basic BKT Algorithm to Production-Quality System
Very professional and quality work. Very communicative as well.
TR
Trygve R.
Jan 26, 2026
ML explore and dashboard for daily development
About Arnau
Decision Systems Consultant | Forecast, Optimization & AI for Business
100%
Job Success
Barcelona, Spain - 8:18 am local time
That is where I help:
I design decision systems that combine data science, forecasting, mathematical optimization, artificial intelligence and business automation to solve real operational and strategic problems. Every project starts with understanding how decisions are made inside the business before selecting the right analytical or AI-based solution.
Whether the objective is improving demand planning, optimizing inventory, automating repetitive processes, reducing financial risk or building AI-powered workflows, my focus is always the same: delivering practical solutions that create measurable business value.
𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵
Demand Forecasting & Predictive Analytics
• Sales forecasting
• Multi-horizon demand forecasting
• Inventory planning
• Time series modelling
• Scenario analysis
Supply Chain & Operations Optimization
• Inventory optimization
• Production planning
• Resource allocation
• Process optimization
• Mathematical optimization models
Pricing & Financial Analytics
• Pricing optimization
• Revenue analytics
• Credit risk modelling
• Financial forecasting
• Decision support models
AI Agents & Business Automation
• AI Agents
• Claude API
• OpenAI API
• LLM-powered workflows
• Process automation
• Intelligent business assistants
• Workflow automation
Business Intelligence & Decision Support
• KPI dashboards
• Executive reporting
• Interactive analytics
• Automated reporting
• Business intelligence platforms
𝗦𝗲𝗹𝗲𝗰𝘁𝗲𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀
- Designed a multi-horizon demand forecasting system for a growing e-commerce business to improve purchasing and inventory planning.
- Developed a credit risk prediction model supporting consumer lending decisions within the financial sector.
- Built a business intelligence platform that automated KPI reporting, customer monitoring and operational analytics.
- Designed AI-powered workflows that automate business processes using Large Language Models and modern automation platforms.
- Developed analytical and optimization models supporting production planning and operational decision-making in manufacturing environments.
𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀
Python • SQL • PySpark • Microsoft Fabric • Azure • Databricks • Power BI • Anaplan • Machine Learning • Deep Learning • Operations Research • Mathematical Optimization • Forecasting • GitHub Actions • Docker • n8n • Claude API • OpenAI API • AI Agents • Data Pipelines
𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸
1. Understand the business problem before writing a single line of code.
2. Design the simplest solution capable of solving the problem effectively.
3. Build scalable systems that integrate naturally into existing business processes.
4. Deliver measurable business impact through better planning, automation and decision-making.
I enjoy working closely with clients, challenging assumptions, exploring alternatives and translating complex analytical problems into practical business solutions. If you're looking for someone who combines strong analytical skills, mathematical thinking, AI expertise and a genuine focus on business value, I'd be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Arnau can start the project.
Delivery time starts when Arnau receives requirements from you.
Arnau works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Collection & Data Review
I review your business goals, available data, and success metrics to define the scope.
Data Preparation & Exploration
Cleaning, transforming, and analyzing your dataset to uncover patterns and ensure quality