About Joaquín
I am a Senior AI/ML & Data/Cloud Engineer with over 6 years of experience delivering scalable solutions for companies across Spain and Europe. I combine data engineering, machine learning, and cloud architecture with fullstack and mobile development, helping businesses turn ideas into production-ready solutions.
AI/ML, Data & Cloud (Spain & EU clients)
- Design and implement modern data pipelines and big data architectures
- Deploy AI/ML models, including LLMs, embeddings, and predictive analytics
- Cloud architecture on AWS (Lambda, S3, Glue, EMR, Redshift, Terraform, Docker)
- Automation, DevOps, CI/CD, and analytics dashboards for enterprise-grade solutions
Fullstack & Mobile / CTO (Spain & EU)
- Develop web and mobile apps (Laravel, Node.js, React, React Native)
- Lead projects as technical lead / CTO, guiding teams and delivering production-ready products
- Integrate APIs, CRMs, and third-party services, ensuring scalable and maintainable solutions
I have worked with large corporations and startups, in international remote teams, fluent in English and French, and competent in German/Deutsch.
If you are looking for a senior freelancer capable of delivering fast, robust, and scalable solutions, I am happy to help.
Spanish
Native or bilingual
English
Native or bilingual
French
Conversational
German
Conversational
Remote only
Primarily works remotely
Experience
- MarketingPilotCTOE-COMMERCEJuly 2025 - Today (11 months)Copenhague, DenmarkAs Co-Founder and Technical Lead at MarketingPilot, I’m responsible for turning our vision into a reliable, secure, and scalable product. My focus is on designing the architecture, building the MVP and beyond, and ensuring we meet technical, compliance, and reliability standards from day one.Key responsibilities:• Designing and implementing the data pipeline (GA4 + Meta Ads → metrics → recommendations).• Delivering the MVP with stable integrations, automated email digests, and a simple web view for pilot users.• Ensuring EU-hosted, GDPR-compliant infrastructure with read-only OAuth, encryption, and no PII handling.• Monitoring, logging, and error-handling to maintain ≥95% uptime and ≤5% job failure rate.• Documenting architecture, deployment, and handover processes to avoid single points of failure.At MarketingPilot, my role is to create the technical foundations that allow us to scale fast and securely, while making sure our product always delivers measurable value to customers.
- AyesaSenior Data Engineer - DevOps - MLOps - MobileTELECOMMUNICATIONSJanuary 2024 - Today (2 years and 5 months)Madrid, SpainArchitected and deployed cloud-native AI and data automation systems on AWSDesigned data pipelines with Lambda, Glue, S3, Redshift optimizing cost and latencyBuilt Python scripts & FastAPI microservices serving GenAI and analytics endpointsImplemented CI/CD pipelines, observability dashboards (ELK), and automated testing for high availabilityImproved developer productivity with AI-assisted workflows and Infrastructure-as-CodeTech: AWS, Azure, Kubernetes, Databricks, Python, MLflow, ELK Stack, Prometheus, Grafana, Terraform
- UltimaDevsFounder & CEOTECHMarch 2024 - Today (2 years and 3 months)Murcia, SpainFounded UltimaDevs, a software engineering agency focused on AI, Web, and Mobile development.
- Scaled the company from concept to a multidisciplinary team delivering SaaS, automation, and mobile apps
- Managed client projects from ideation to deployment, ensuring technical quality and business alignment
- Led hiring, training, and mentorship programs for developers in AI, React Native, and cloud automation
- Delivered end-to-end solutions in AI integration, data analytics, mobile apps, and DevOps for startups and SMBs
Key technologies: Python, Node.js, React, React Native, AWS, Docker, Terraform, ML/AI frameworks
Reviews
Rubén
Synkross
Reviewed on 16/01/2025
Excelente trabajo, cumplió en tiempo y forma.
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