Hire Freelance
Backend 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
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
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
Staff API 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 Rust / Backend Engineer
Specialized in backend systems using Rust and CosmWasm for blockchain applications. Integrated multiple programming languages to create robust, cross-functional solutions.
- Specialized in Rust backend systems
- Developed blockchain applications with CosmWasm
- Integrated multi-language solutions
Cloud Engineer Consultant
Consulted on cloud infrastructure with Kubernetes and OpenShift for large enterprises. Automated deployment processes using Terraform and Ansible.
- Developed cloud-native applications in Go
- Enhanced security with advanced Python scripting
- Optimized resource allocation in cloud environments
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
Principal Backend Engineer
Led backend engineering teams to build microservices architecture with Rust and Kafka. Applied Domain-Driven Design (DDD) principles in complex system modeling.
- Implemented SOLID principles in Ruby applications
- Optimized event-driven systems for scalability
- Configured CI/CD pipelines for microservices
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
Blockchain Backend Engineer
Specialized in developing scalable smart contract platforms using Hyperledger Besu. Contributed to the deployment of containerized blockchain solutions using Kubernetes and OpenShift. Engineered backend systems for decentralized applications with a focus on security and performance.
- Implemented a custom consensus algorithm for private blockchains
- Optimized transaction throughput for high-load blockchain networks
- Developed cross-platform blockchain tooling with TypeScript
Senior Backend Engineer
Pioneered backend solutions in Rust, specializing in concurrent processing and memory safety. Enhanced complex systems with C++ and Haskell, focusing on performance-critical components. Developed scalable architectures for high-load environments.
- Pioneered Rust backend solutions
- Enhanced systems with C++ and Haskell
- Developed scalable architectures
Head of Engineering / Team Lead
Led the development of high-concurrency systems using Rust and Tokio. Architected distributed applications with a focus on fault-tolerance and scalability.
- Developed RESTful APIs using Node.js and NestJS
- Optimized C++ codebases for performance-critical applications
- Built real-time data pipelines using Go
Technical Co-Founder
Built a high-throughput distributed ledger platform using Rust and Go, achieving sub-second transaction finality. Developed a smart contract execution engine that supports complex financial instruments in Solidity.
- Architected a decentralized identity management system
- Implemented a cross-chain interoperability protocol
- Optimized consensus algorithms for low-latency 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
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
IT Specialist
Develops Linux desktop applications with Tauri 2 by pairing Rust application engines with typed JavaScript bindings, installers, and automated tests. Maintains open-source plugins and contributed fixes across Tauri core, Tao, and Microsoft’s tgrep tooling, backed by extensive Linux administration and network-infrastructure experience.
- Built cross-platform desktop installers
- Maintains Rust-to-TypeScript plugin interfaces
- Administered DNS, DHCP, VPN, and virtualization systems
- Operated Redis, SQLite, Nginx, and NAS infrastructure