Hire Freelance
Data Systems Scala Developers in Spain
Built through years working with teams and engineers in the Scala ecosystem.
We specialize in functional backend systems, data platforms, and distributed infrastructure.
Focused, relevant introductions from a curated network.
Available Developers
Data Engineer
Engineered data pipelines for processing terabytes of e-commerce transaction data, enhancing data accessibility and insights. Built ETL processes for a healthcare analytics platform, improving data quality and processing efficiency. Developed a recommendation engine for a retail platform using collaborative filtering techniques.
- Automated data validation processes using Scala and Apache Spark
- Implemented data warehousing solutions with optimized query performance
- Created a scalable data ingestion framework using Kafka and Flink
- Streamlined data visualization dashboards with real-time analytics
Staff Engineer
Built Scala and Java backend services for streaming platforms, including privacy workflows that propagate complete user-data deletion across distributed domains. Develops secure token services processing approximately 213 million daily requests at 70ms p95 latency and below 0.1% errors.
- Applied domain-driven design across microservice boundaries
- Used Typelevel functional programming for production services
- Integrated streaming access with connected vehicle platforms
- Automated development using Claude Code and opencode
Lead Data Systems Engineer
- Led migration of monolithic system to microservices architecture
- Built high-throughput data pipeline processing 1M+ events per second
- Designed and implemented real-time monitoring and alerting platform
Senior Big Data Engineer
Engineered large-scale data processing workflows with Apache Spark, optimizing ETL operations. Developed data warehousing solutions using Hive for efficient querying and reporting. Managed Hadoop clusters, ensuring high availability and fault tolerance.
- Implemented real-time analytics using Spark Streaming
- Enhanced SQL query performance with custom indexing
- Automated data pipeline monitoring and alerts
Software Engineer
Pioneered distributed systems architecture, focusing on Kubernetes orchestration and Rust for high-performance computing. Led initiatives in developing and scaling cloud-native applications with extensive use of Scala and Python.
- Developed custom Kubernetes operators
- Optimized JVM performance for large-scale applications
- Engineered real-time analytics platforms using JavaScript
Software Engineer
Designed microservices-based architectures using Scala and Akka. Extensive experience in building scalable backend solutions with Spring Boot.
- Designed microservices-based architectures
- Experienced with Spring Boot
- Built scalable backend solutions
Sr. Software Engineer
Built scalable microservices architectures deployed on Kubernetes, optimizing for high availability and fault tolerance. Developed distributed systems for real-time data processing in the IoT domain, leveraging Go and Scala. Spearheaded efforts in implementing CI/CD pipelines for seamless deployment and integration.
- Implemented event-driven architecture using Kafka and RabbitMQ
- Enhanced application performance through advanced caching strategies
- Designed RESTful APIs with comprehensive testing frameworks
Ingeniero Full Stack
Built a full-stack web application using Scala and TypeScript, focusing on seamless user experience. Developed a real-time notification system using Rust for high-frequency trading platforms. Created a data visualization dashboard with Haskell for complex datasets.
- Integrated microservices with message brokers for asynchronous processing
- Utilized Python for backend data processing tasks
- Implemented end-to-end testing frameworks for web applications