AI & Full-Stack Engineer
Aktualisiert am 14.05.2025
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 14.05.2025
Verfügbar zu: 100%
davon vor Ort: 100%
AI Development
Full-Stack Development
Back-End
Android
C++
Java
JavaScript
Python
DevOps
MongoDB
PostgreSQL
TensorFlow
Docker
AWS
Django
React
TypeScript
Angular
Vue.js
.NET 4.5
Spanish
Muttersprache
English
Fluent
German
Intermediate

Einsatzorte

Einsatzorte

Barcelona (+50km) Barcelona (+50km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 year 6 months
2023-10 - 2025-03

Developed a multilingual virtual assistant for enterprise clients

Senior AI Engineer Python Java JavaScript ...
Senior AI Engineer

  • Developed a multilingual virtual assistant for enterprise clients by fine-tuning LLMs like Llama 2 and GPT-4, integrating LangChain for context-aware responses and Weaviate for efficient vector search, enabling seamless cross-language interactions.
  • Built a content generation platform using Stable Diffusion and custom-trained LoRA adapters, optimizing inference with ONNX and TensorRT to serve high-volume requests for marketing teams.
  • Designed an AI-powered document summarization system for legal firms using Hugging Face transformers and spaCy, automating the extraction of key insights while maintaining compliance with EU data regulations.
  • Implemented a  multi-modal search engine combining text embeddings from BERT and image features from CLIP, deployed on AWS with autoscaling to handle fluctuating user demand.
  • Established  MLOps workflows using MLflow for experiment tracking and Kubeflow for pipeline orchestration, ensuring reproducible model training and deployment across teams.
  • Led the migration of legacy monolithic services to cloud-native microservices on GCP, reducing infrastructure costs and improving scalability for AI workloads.

Python Java JavaScript TypeScript .NET 4.0
QuantEdge Solutions
Madrid, Spain (Remote)
4 years
2019-08 - 2023-07

Created a predictive maintenance system for manufacturing clients

Senior Full-Stack EngineerSenior Full-Stack Engineer Python .NET 3.5 Microservices ...
Senior Full-Stack EngineerSenior Full-Stack Engineer

  • Created a predictive maintenance system for manufacturing clients using LSTM networks and sensor data, reducing equipment downtime by identifying failures before they occurred.
  • Developed a computer vision pipeline for quality inspection using YOLOv7 and synthetic data augmentation, achieving high accuracy in detecting defects for industrial applications.
  • Modernized a legacy SaaS platform by migrating from .NET to a microservices architecture with FastAPI and React, improving performance and enabling faster feature deployment.
  • Designed a real-time analytics dashboard with D3.js and WebSockets, providing logistics companies with live insights into shipment tracking and operational metrics.
  • Implemented a secure API gateway using OAuth2 and JWT, enabling seamless integration with third-party logistics providers while maintaining strict access controls.


Python .NET 3.5 Microservices React D3.js Software as a Service Echtzeit REST OAuth 2.0
TechFusion Iberia
Barcelona, Spain
5 years
2014-07 - 2019-06

Developed resilient microservices for financial data processing

Backend Engineer C++ Kafka Microservices ...
Backend Engineer

  • Built high-frequency trading systems in Go and C++, leveraging lock-free data structures to achieve ultra-low latency for algorithmic trading strategies.
  • Developed resilient microservices for financial data processing using Spring Boot and Kafka, ensuring fault tolerance during peak market volatility.
  • Optimized PostgreSQL performance through query tuning and indexing strategies, significantly speeding up complex financial reporting queries.
  • Prototyped a market sentiment analysis tool using NLP techniques on news and social media data, providing traders with real-time insights


C++ Kafka Microservices PostgreSQL Neural Network Adaptive Requirements Analysis Java Python
NexusAI Technologies
Barcelona, Spain

Aus- und Weiterbildung

Aus- und Weiterbildung

4 years
2010-04 - 2014-03

University of Valladolid

BSc in Computer Science, Valladolid, Spain
BSc in Computer Science
Valladolid, Spain
GPA: 9.1/10 | 2010?2014

Position

Position

Senior Software Engineer

Kompetenzen

Kompetenzen

Top-Skills

AI Development Full-Stack Development Back-End Android C++ Java JavaScript Python DevOps MongoDB PostgreSQL TensorFlow Docker AWS Django React TypeScript Angular Vue.js .NET 4.5

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Generative AI and Full-Stack Engineer with 10 years of experience building AI-powered SaaS solutions. I focus on creating complete systems, from training models to developing the applications that use them. My work includes designing scalable backends, APIs, and user interfaces to integrate AI into real-world products. I prioritize systems that are efficient, maintainable, and deliver consistent results.


Technical Skills

  • Generative AI: LLMs (GPT, Llama 2), LangChain, RAG, Diffusion Models (Stable Diffusion), Vector DBs (Pinecone, Weaviate)
  • AI/ML Frameworks: PyTorch, TensorFlow, Hugging Face, ONNX, spaCy, OpenCV
  • MLOps & Cloud: AWS, GCP, MLflow, Kubeflow, Docker, Kubernetes, CI/CD
  • Full-Stack: FastAPI, Django, React, Next.js, Vue.js, Node.js, Nest.js, GraphQL
  • Data Engineering: Apache Spark, Airflow, BigQuery, PostgreSQL

Programmiersprachen

Python
Experte
C++
Experte
C#
Experte
Java
Experte
Javascript
Experte
Typescript
Experte
Qt
Experte
Go

Branchen

Branchen

I focus on creating complete systems, from training models to developing the applications that use them. My work includes designing , and to integrate AI into real-world products. I prioritize systems that are efficient, maintainable, and deliver consistent results.

Einsatzorte

Einsatzorte

Barcelona (+50km) Barcelona (+50km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 year 6 months
2023-10 - 2025-03

Developed a multilingual virtual assistant for enterprise clients

Senior AI Engineer Python Java JavaScript ...
Senior AI Engineer

  • Developed a multilingual virtual assistant for enterprise clients by fine-tuning LLMs like Llama 2 and GPT-4, integrating LangChain for context-aware responses and Weaviate for efficient vector search, enabling seamless cross-language interactions.
  • Built a content generation platform using Stable Diffusion and custom-trained LoRA adapters, optimizing inference with ONNX and TensorRT to serve high-volume requests for marketing teams.
  • Designed an AI-powered document summarization system for legal firms using Hugging Face transformers and spaCy, automating the extraction of key insights while maintaining compliance with EU data regulations.
  • Implemented a  multi-modal search engine combining text embeddings from BERT and image features from CLIP, deployed on AWS with autoscaling to handle fluctuating user demand.
  • Established  MLOps workflows using MLflow for experiment tracking and Kubeflow for pipeline orchestration, ensuring reproducible model training and deployment across teams.
  • Led the migration of legacy monolithic services to cloud-native microservices on GCP, reducing infrastructure costs and improving scalability for AI workloads.

Python Java JavaScript TypeScript .NET 4.0
QuantEdge Solutions
Madrid, Spain (Remote)
4 years
2019-08 - 2023-07

Created a predictive maintenance system for manufacturing clients

Senior Full-Stack EngineerSenior Full-Stack Engineer Python .NET 3.5 Microservices ...
Senior Full-Stack EngineerSenior Full-Stack Engineer

  • Created a predictive maintenance system for manufacturing clients using LSTM networks and sensor data, reducing equipment downtime by identifying failures before they occurred.
  • Developed a computer vision pipeline for quality inspection using YOLOv7 and synthetic data augmentation, achieving high accuracy in detecting defects for industrial applications.
  • Modernized a legacy SaaS platform by migrating from .NET to a microservices architecture with FastAPI and React, improving performance and enabling faster feature deployment.
  • Designed a real-time analytics dashboard with D3.js and WebSockets, providing logistics companies with live insights into shipment tracking and operational metrics.
  • Implemented a secure API gateway using OAuth2 and JWT, enabling seamless integration with third-party logistics providers while maintaining strict access controls.


Python .NET 3.5 Microservices React D3.js Software as a Service Echtzeit REST OAuth 2.0
TechFusion Iberia
Barcelona, Spain
5 years
2014-07 - 2019-06

Developed resilient microservices for financial data processing

Backend Engineer C++ Kafka Microservices ...
Backend Engineer

  • Built high-frequency trading systems in Go and C++, leveraging lock-free data structures to achieve ultra-low latency for algorithmic trading strategies.
  • Developed resilient microservices for financial data processing using Spring Boot and Kafka, ensuring fault tolerance during peak market volatility.
  • Optimized PostgreSQL performance through query tuning and indexing strategies, significantly speeding up complex financial reporting queries.
  • Prototyped a market sentiment analysis tool using NLP techniques on news and social media data, providing traders with real-time insights


C++ Kafka Microservices PostgreSQL Neural Network Adaptive Requirements Analysis Java Python
NexusAI Technologies
Barcelona, Spain

Aus- und Weiterbildung

Aus- und Weiterbildung

4 years
2010-04 - 2014-03

University of Valladolid

BSc in Computer Science, Valladolid, Spain
BSc in Computer Science
Valladolid, Spain
GPA: 9.1/10 | 2010?2014

Position

Position

Senior Software Engineer

Kompetenzen

Kompetenzen

Top-Skills

AI Development Full-Stack Development Back-End Android C++ Java JavaScript Python DevOps MongoDB PostgreSQL TensorFlow Docker AWS Django React TypeScript Angular Vue.js .NET 4.5

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Generative AI and Full-Stack Engineer with 10 years of experience building AI-powered SaaS solutions. I focus on creating complete systems, from training models to developing the applications that use them. My work includes designing scalable backends, APIs, and user interfaces to integrate AI into real-world products. I prioritize systems that are efficient, maintainable, and deliver consistent results.


Technical Skills

  • Generative AI: LLMs (GPT, Llama 2), LangChain, RAG, Diffusion Models (Stable Diffusion), Vector DBs (Pinecone, Weaviate)
  • AI/ML Frameworks: PyTorch, TensorFlow, Hugging Face, ONNX, spaCy, OpenCV
  • MLOps & Cloud: AWS, GCP, MLflow, Kubeflow, Docker, Kubernetes, CI/CD
  • Full-Stack: FastAPI, Django, React, Next.js, Vue.js, Node.js, Nest.js, GraphQL
  • Data Engineering: Apache Spark, Airflow, BigQuery, PostgreSQL

Programmiersprachen

Python
Experte
C++
Experte
C#
Experte
Java
Experte
Javascript
Experte
Typescript
Experte
Qt
Experte
Go

Branchen

Branchen

I focus on creating complete systems, from training models to developing the applications that use them. My work includes designing , and to integrate AI into real-world products. I prioritize systems that are efficient, maintainable, and deliver consistent results.

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Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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