AI implementation for businesses
Find where AI adds value in your operations and take it to production with human oversight.
View serviceIndependent consultant · Málaga and remote
Data, AI and automation so your business works better.
I'm Rubén Solano. I design and build useful systems: processes that run themselves, assistants that answer from your documents, and data you can trust to make decisions.
- Fintech experience (Financial Crime team)
- 11 contracts completed on Upwork
- Economist · MSc in progress (UMA)
- NVIDIA Deep Learning certificate
Services
What I can do for your business
Five concrete services with clear deliverables and written scope. I start by understanding your process, not by selling technology.
Process automation
Turn manual, repetitive tasks into scheduled, traceable and maintainable workflows.
View serviceChatbots and AI assistants on your data
An assistant that answers from your documents, cites its sources and respects permissions.
View serviceData engineering
Reliable pipelines, clear models and quality tests so you can decide with data you trust.
View serviceAdvanced analytics and predictive models
Forecasts and classifications honestly evaluated against simple alternatives.
View service
Why work with me
Rigorous engineering, plain language
We start from your business
Process and data first. Technology comes later, and only if it adds value.
Small, measurable deliveries
Usable versions early, with agreed success criteria and evaluation on your real data.
Technical honesty
I tell you what works, what doesn't and what the risks are. I don't promise results I can't measure.
Yours and maintainable
Code and documentation at your disposal. No closed platforms, no dependence on me.
How we work
- 1
Initial conversation
You tell me about the process, the data and the goal. No commitment.
- 2
Scoped assessment
I review feasibility, available data and risks. I'll also tell you when something isn't worth doing.
- 3
Proposal and scope
Deliverables, timeline and success criteria in writing before we start.
- 4
Incremental delivery
Small, usable releases with documentation and handover.
Ways to work together
Choose how to start
To decide with confidence
Assessment and feasibility
A scoped analysis of one case: available data, risks, alternatives and a reasoned estimate of effort and return.
To solve a problem
Fixed-scope project
A concrete solution with deliverables, timeline and acceptance criteria agreed in writing.
To keep improving
Ongoing support
Maintenance, improvements and evolution of what was built, with agreed tasks or dedication.
Pricing is agreed in a written proposal after the first conversation.
Portfolio
Projects that prove it
Cases with their problem, architecture and limits. Each card states whether it is professional work, freelance work or a personal project.
Data engineeringPersonal project
Analytics engineering lab on financial crime
A personal lab that recreates an analytics engineering environment on synthetic financial-crime data, with base, core and marts layers, quality tests and orchestration.
- Python
- SQL
- dbt
- BigQuery
- DuckDB
- Airflow
- +1
Actively developedView caseArtificial intelligencePersonal project
LLM assistant with long-term memory
A language-model assistant with persistent memory and hybrid retrieval — semantic and keyword — over a graph-based store.
- Python
- Neo4j
- Embeddings
- TF-IDF
- LLM
PrototypeView caseMachine learningPersonal project
Computer-vision inventory system
A system combining computer vision and data processing to identify and classify items and support inventory analysis.
- Python
- YOLO
- OCR
- Embeddings
PrototypeView caseAnalyticsPersonal project
Marketing Mix Modeling with PyMC
An analytical project exploring marketing attribution, budget allocation and response modelling with Bayesian statistics in PyMC.
- Python
- PyMC
- Statistical modelling
PrototypeView case
Results
Figures I can stand behind
Personal-project numbers are labelled as such.
20 → 2 min
Daily rebuild of a data model
Optimisation of an Airflow-related process: from roughly 20 minutes to about 2 (≈ 90 % faster).
Ebury · internship
250,000+
Synthetic transactions
Data in a personal analytics-engineering lab with base, core and marts layers and data-quality tests.
Personal project
11
Contracts completed on Upwork
Analytics, Python and machine learning, with several 5-star reviews.
Freelance
2025
NVIDIA Deep Learning
Certificate of competency in deep learning.
Certification
Who is behind this
An economist who writes code
I come from economic and quantitative analysis, and since 2020 I have worked on data, Python and machine learning — first as a freelancer, later in a fintech analytics team. I care about technology that solves a concrete problem and can still be maintained after delivery.
Professional experience
From economic analysis to data engineering and applied AI.
Mar 2026 – Sep 2026 · Internship
Ebury
Data Analyst / Analytics Engineering · Financial Crime team
Analytics engineering at a fintech, on customer-risk and financial-crime data.
2025 · Internship
Caja Rural de Granada
Cash Operations internship
Banking and treasury operations.
2020 – present
Freelance
Python, data and machine learning developer
Analytics, machine learning and automation projects for international clients. 11 contracts completed on Upwork with several 5-star reviews.
What I work with
Grouped by area. The marker shows how I have used each one: professional work, freelance, personal projects or studies.
- Professional work
- Freelance / clients
- Personal project
- Studies / learning
Data engineering
Pipelines, modelling and data quality.
- Python(Professional work, Freelance / clients)
- SQL(Professional work)
- BigQuery(Professional work)
- dbt(Professional work, Personal project)
- Apache Airflow(Professional work, Personal project)
- ELT / ETL(Professional work)
AI and machine learning
Models, LLMs, retrieval and vision.
- LLM(Professional work, Personal project)
- PyTorch(Studies / learning, Freelance / clients)
- scikit-learn(Freelance / clients)
- Computer vision(Freelance / clients, Personal project)
- Predictive modeling(Freelance / clients, Personal project)
- OpenAI API(Personal project)
Analytics and BI
Analysis, statistics and reporting.
- Looker(Professional work)
- Sigma(Professional work)
- Financial analytics(Studies / learning, Professional work)
- pandas(Freelance / clients)
- NumPy(Freelance / clients)
- Statistical analysis(Freelance / clients, Studies / learning)
Engineering and infrastructure
Environments, integration and cloud.
- Google Cloud(Professional work)
- Linux(Personal project, Freelance / clients)
- API integrations(Freelance / clients, Personal project)
- Bash(Personal project)
- Docker(Personal project)
- AWS(Personal project)
Content
Articles and videos
Technical explanations and practical guides for deciding well, no filler.
The first articles are in preparation.
FAQ
Before you write to me
How much does a project cost?
It depends on scope. After a first conversation I send a written proposal with scope, deliverables, timeline and price. Where there is uncertainty, starting with a scoped assessment reduces risk.
Do you only work with companies in Málaga?
No. I work remotely with companies across Spain and other countries, in Spanish or English.
What data do you need and how do you protect it?
Only what the case requires, preferably anonymised. We define in writing which data is used, where it is hosted and who has access, and I respect client and employer confidentiality.
What if I need changes after delivery?
I hand over code and documentation so you can maintain it. If you prefer that I keep improving the system, we can agree ongoing support.
Shall we talk about what you want to improve?
Tell me about your case. I'll reply personally and tell you honestly whether I can help and how I would approach it.