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Note: Open for custom projects, please contact me :)
I am a dedicated data scientist with a passion for leveraging data to unravel complex phenomena and drive impactful solutions. Equipped with a robust background in machine learning, statistics, and programming, I offer a unique blend of analytical prowess and problem-solving skills!
HARD SKILLS
💡 Proficient in Python, R, R Studio and SQL for data analysis and modeling.
💡 Experienced in statistical modeling and machine learning techniques.
💡 Skilled in data visualization using libraries such as matplotlib, seaborn, ggplot2, and Plotly.
💡 Proficient in PowerBI and Tableau for reporting.
💡Experienced with Azure cloud services for model deployment and management.
SOFT SKILLS
💡 Strong problem-solving skills to tackle complex challenges.
💡 A critical thinker with a keen attention to detail.
💡 Extremely communicative and detail-oriented.
💡 A collaborative professional with excellent time management abilities.
QUALIFICATIONS
✅ Bachelor's & Master's in Physics
✅ +2 years experience in Data Science & Machine Learning Roles
I am a dedicated data scientist with a passion for leveraging data to unravel complex phenomena and drive impactful solutions. Equipped with a robust background in machine learning, statistics, and programming, I offer a unique blend of analytical prowess and problem-solving skills!
HARD SKILLS
💡 Proficient in Python, R, R Studio and SQL for data analysis and modeling.
💡 Experienced in statistical modeling and machine learning techniques.
💡 Skilled in data visualization using libraries such as matplotlib, seaborn, ggplot2, and Plotly.
💡 Proficient in PowerBI and Tableau for reporting.
💡Experienced with Azure cloud services for model deployment and management.
SOFT SKILLS
💡 Strong problem-solving skills to tackle complex challenges.
💡 A critical thinker with a keen attention to detail.
💡 Extremely communicative and detail-oriented.
💡 A collaborative professional with excellent time management abilities.
QUALIFICATIONS
✅ Bachelor's & Master's in Physics
✅ +2 years experience in Data Science & Machine Learning Roles
Machine Learning Tools
Azure Machine Learning, ChatGPT, Keras, Microsoft Excel, Microsoft Power BI, MLflow, NumPy, OpenCV, pandas, Python, Python Scikit-Learn, PyTorch, R, scikit-learn, SciPy, SQL, Tableau, TensorFlow, Vertex AI, XGBoostWhat's included
| Service Tiers |
Starter
$25
|
Standard
$35
|
Advanced
$45
|
|---|---|---|---|
| Delivery Time | 6 days | 5 days | 4 days |
Number of Revisions | 0 | 0 | 1 |
Number of Model Variations | 1 | 1 | 2 |
Number of Scenarios | 1 | 1 | 2 |
Number of Graphs/Charts | 3 | 4 | 6 |
Model Validation/Testing | |||
Model Documentation | - | - | |
Data Source Connectivity | - | - | |
Source Code | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $25Frequently asked questions
6 reviews
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SA
Samuel A.
Aug 9, 2025
automated file, email and asset share system
sara is very knowledgable and helpful. unfortunately, our schedules didn't end up aligning so we were uable to work together. she did help setup a plan that i could communicate to other developers. so, that was very helpful and kind.
SA
Samuel A.
Jun 20, 2025
automation and integration proposal for aiml suite of apps.
AA
Alexander A.
May 17, 2024
Data Scientist / Analyst required for P-Value analysis in Power BI on survey analytics project
Sara is a fantastic Data Scientist and here communication and speed of delivery was impeccable.
CN
Clotilde N.
Apr 26, 2024
You will get An engaging and research-intensive article, optimized for SEO
Sara is a great writer. She is always willing to help and go the extra mile.
CN
Clotilde N.
Apr 23, 2024
Analyse a dataset from scratch, using pyhton/SQL, to draw insights and then integrate with Power BI
Excellent freelancer. Sara has great technical and soft skills.
About Sara
AI Engineer | AI Automation Specialist | Data Scientist
93%
Job Success
Machico, Portugal - 8:59 am local time
I help businesses automate complex workflows, build AI-powered products, and unlock data-driven insights that scale. With a background in AI engineering, MLOps, and data science, I specialize in designing custom AI systems — from strategy to deployment — that streamline operations, enhance decision-making, and drive measurable ROI.
👉Core Skills & Expertise
🧠 Prompt Engineering — designing structured, context-aware prompts for reliable and scalable LLM outputs
🤖 GPT Builder / Custom AI Agent Development — creating tailored GPTs and agentic systems for business use cases
⚙️ AI Automation Workflows — integrating APIs, scripts, and tools like Zapier, Make, and LangChain to automate complex operations
📊 Data Analysis & Visualization — transforming raw data into clear insights using Python (Pandas, Plotly, Power BI)
🧩 Data Modeling & ETL Design — architecting robust pipelines and data models for scalable analytics
🔬 Machine Learning Engineering — developing, training, and deploying ML models in production environments (Azure, AWS, GCP)
📈 Statistical Modeling — applying regression, forecasting, and probabilistic modeling to optimize decisions
🧮 MLOps & Deployment — CI/CD for AI systems, monitoring performance, and automating retraining pipelines
🧰 Software & Cloud Engineering — Python, FastAPI, SQL, Docker, Azure Functions, and GitHub Actions
🎯 AI Strategy & Consulting — bridging business goals with technical execution through clear, actionable roadmaps
👉Whether you’re looking to:
- Integrate AI into existing systems (LLMs, computer vision, or predictive analytics)
- Automate repetitive business processes using Python, APIs, and no/low-code tools
- Develop intelligent dashboards or agents that understand and act on data
- Build end-to-end machine learning pipelines in Azure, AWS, or GCP
- Transform messy data into actionable business intelligence
…I can help you go from idea → prototype → production — without the technical chaos.
My clients value my ability to combine deep technical expertise (Azure Functions, LangChain, GPT APIs, SQL/ETL, MLOps) with a consultative approach — ensuring every solution is not just functional, but aligned with your strategic goals.
Let’s build something intelligent together.
Steps for completing your project
After purchasing the project, send requirements so Sara can start the project.
Delivery time starts when Sara receives requirements from you.
Sara works on your project following the steps below.
Revisions may occur after the delivery date.
Data Collection and Exploration (if applicable)
- Gather the required dataset(s) from the client or relevant sources. - Perform initial data exploration to understand the structure, quality, and characteristics of the data. - Identify any missing values, outliers, or data anomalies.
Data Preprocessing (if applicable)
- Clean the data by handling missing values, outliers. - Perform data transformations, such as normalization or encoding categorical variables. - Split the data into training, validation, and test sets, if applicable.