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Fintech Rust Developers in Spain







Built through years working with teams and engineers in the Rust ecosystem.
We specialize in systems programming, database internals, and performance-critical infrastructure.
Focused, relevant introductions from a curated network.
Available Developers
Head of Quant Engineering
Developed quantitative trading systems using Rust and C++, focusing on high-frequency trading algorithms. Implemented smart contracts for decentralized finance applications.
- Built high-frequency trading algorithms
- Developed DeFi smart contracts
- Specialized in quantitative finance systems
Independent Systems Research & Consulting
Designed and implemented distributed systems for high-availability services using Rust and Python. Led teams in developing blockchain-based applications with a focus on smart contract security.
- Optimized SQL databases for performance and scalability
- Authored technical documentation for complex system architectures
- Contributed to open-source distributed ledger projects
Senior Rust Fintech 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
CTO / Technical Lead
Led the development of a cross-platform graphics engine using C++ and Rust. Pioneered low-level performance enhancements in embedded systems with assembly code.
- Designed real-time rendering pipelines
- Optimized compilers for embedded applications
- Implemented custom memory management techniques
Staff Backend Engineer
Architected backend systems using Rust and Node.js, focusing on scalable cloud infrastructure with AWS. Developed containerized applications using Docker Swarm, ensuring robust CI/CD integration.
- Implemented event-driven architectures with AWS Lambda
- Optimized network communication protocols for high availability
- Built distributed logging systems for microservices
Software Engineer
Built and scaled cloud-native applications leveraging Kubernetes and Rust. Developed real-time data processing pipelines for large-scale analytics.
- Implemented machine learning models in Python
- Architected microservices in Scala
- Managed distributed systems with Java
Team Lead - Backend
Designed backend systems using Rust and Go for high-performance applications. Managed data persistence with PostgreSQL and caching strategies using Redis.
- Integrated NestJS for modular server-side applications
- Developed API gateways for microservice communication
- Optimized Node.js applications for concurrency
Senior Rust Developer
Architected a distributed ledger system using Rust, achieving consensus across decentralized nodes. Led the development of a high-throughput event-driven system with Tokio for financial services.
- Designed a scalable microservices architecture in Rust
- Integrated SQL databases for real-time analytics
- Built a robust WebSocket server for live data feeds
Full-stack Rust Engineer
Designed and implemented a full-stack application using Rust and Node.js, focusing on seamless API integrations. Optimized database interactions with PostgreSQL.
- Utilized Java for backend service enhancements
- Configured SQL queries for complex data retrieval
- Deployed ArangoDB for graph-based data storage
Senior Software Engineer
Specialized in designing distributed and asynchronous systems for blockchain protocol integrations. Developed scalable microservices with Go and Rust.
- Optimized blockchain consensus algorithms for speed
- Integrated third-party APIs into distributed networks
- Enhanced fault tolerance in distributed environments
Senior Backend / Systems Engineer
Engineered a distributed ledger technology platform using Rust for secure transactions. Developed low-latency network protocols in C for high-frequency trading platforms.
- Optimized Python scripts for data analytics
- Built a custom memory management system in C++
- Implemented concurrency models for scalable applications
Software Engineer
Built compiler and runtime infrastructure spanning an LLVM JIT for the FreeBSD ipfw firewall, heterogeneous code generation, and dependency-graph-driven execution for high-performance computing. Developed an asynchronous Rust automotive runtime and embedded operating system with hardware drivers, bootloader logic, and over-the-air update support for Cortex-M7 devices.
- Achieved at least 10x firewall execution speedup
- Generated CUDA Graph code for heterogeneous systems
- Offloaded Fortran HPC workloads to FPGA hardware
- Built Renode-based virtual embedded-device tooling
Software Engineer
Developed a type-safe Rust control layer for industrial inkjet printheads, including asynchronous execution and hardware-constrained resource management. Built backend infrastructure connecting firmware devices through service discovery, telemetry messaging, and relational storage.
- napi-rs native Node.js addon packaging
- mDNS device discovery over isolated VLANs
- Mosquitto MQTT telemetry handling
- High-throughput computational print-plan generation
Senior Software Engineer
Engineered distributed systems in Go and Rust for payment processing, Web3 infrastructure, smart contracts, and cross-chain services, including ecosystems exceeding 200 microservices. Maintained tier-one transaction workloads on Kubernetes with operational practices centered on failure behavior, deployment safety, and observability.
- Open-source Go multi-agent orchestrator
- Cross-chain backend integration
- Prometheus and Grafana platform monitoring
- Docker-based production deployments
Software Engineer
Develops security-critical Bitcoin firmware and operating-system components in Rust, including transaction validation that detects tampering before signing. Has ported an asynchronous Rust operating system to the STM32H7 and built embedded hardware-abstraction layers under strict memory constraints.
- Implemented zero-allocation animated QR transmission libraries
- Developed fuel-gauge, LCD, and camera device drivers
- Built embedded firmware spanning C, Rust, and MicroPython
- Contributes to low-level open-source C and C++ projects