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Fintech Rust Developers in Poland

Architects Rust async services for low-latency market-data ingestion, normalization, pricing, and execution across multiple trading venues. Previously operated an IoT platform processing thousands of telemetry events per second from hundreds of thousands of field machines during migration to AWS serverless event processing.

• WebSocket reconnection and gap recovery
• Lock-free state sharing with ArcSwap
• Single-writer and sequencer patterns
• Market microstructure modeling

Architected multi-language systems with a focus on Rust, implementing scalable backend infrastructures and designing cross-platform applications.

• Led architecture of complex software ecosystems
• Implemented microservices architecture using Rust and Go
• Built high-performance systems with a focus on concurrency

Designed scalable microservices architectures with Rust, focusing on high performance and reliability. Developed complex backend systems using Java and Kotlin.

• Implemented concurrency models in C#
• Optimized distributed systems in C++
• Developed Python scripts for data analysis

Led the design and deployment of scalable backend systems using Rust and Kafka for real-time data processing. Expert in building microservices architecture with a focus on high availability and resilience.

• Integrated Go and Python for cross-service communication
• Implemented C# modules for legacy system support
• Utilized SQL for complex data transformations

Designed full-stack web applications with Rust and React, utilizing WebAssembly for performance-critical components. Implemented responsive UIs with a focus on user experience.

• Built full-stack applications with Rust and React
• Utilized WebAssembly for performance
• Implemented responsive user interfaces

Architected cloud-native platforms using Rust and Python for high-frequency trading. Integrated Solana blockchain with gRPC for secure transaction processing.

• Optimized Nautilus Trader for low-latency execution
• Developed microservices with container orchestration
• Implemented real-time data analytics pipelines

Contributed to the development of a SQL-based analytics platform using Rust and Python. Focused on enhancing query performance and database interactions.

• Integrated machine learning models for data analytics
• Developed RESTful APIs for data access
• Automated testing pipelines for continuous integration

Built a Rust complex-event-processing engine that composes reusable processing blocks into Kafka-consuming and Kafka-producing deployments. The system uses Tokio tasks, NATS stage transport, embedded Python execution, and dependency-aware input routing to reproduce production-grade stream-processing architecture.

• Implemented bidirectional PyO3 type marshalling across the FFI boundary
• Managed Python GIL boundaries for in-process block execution
• Developed Linux filesystem drivers and embedded firmware
• Built distributed event-driven backends in Scala, Java, and Go

Developed enterprise-level web applications with Actix Web, focusing on high availability and performance. Enhanced existing systems using Rust for backend efficiency.

• Integrated C++ modules for computational tasks
• Developed API solutions using ASP.NET Core
• Optimized C# applications for cloud environments

Implemented blockchain data engineering and backend services for cryptocurrency applications using TypeScript, Node.js, PostgreSQL, Python, and AWS. The work also included basic smart-contract integration, administrative interfaces, OpenAPI documentation, and automated test coverage.

• Built Ruby on Rails production applications
• Developed Vue.js and Next.js interfaces
• Applied cybersecurity training to application development
• Worked with Ethereum-oriented blockchain systems

Built an internal AI-chat backend with centralized Google Gemini key management and a React access-management interface tracking token consumption. Automated PDF invoice extraction with Tesseract OCR and developed Unreal Engine gameplay systems involving character movement, obstacles, and imported 3D assets.

• Astro.js and Tailwind website delivery
• DNS and domain migration operations
• Unreal Engine Blueprint gameplay logic
• Blender rigging and character animation

Engineered quantitative models using Rust and Python for financial analytics. Managed cloud-based data processing on AWS and Azure, optimizing cost and efficiency.

• Developed API integrations for trading platforms
• Utilized Google Cloud for scalable data storage
• Created dashboards for real-time financial metrics

Developed blockchain applications using Rust and Solidity, specializing in L1 architecture. Implemented automated market makers (AMM) for decentralized finance.

• Engineered smart contracts for secure transactions
• Optimized Move-based applications for blockchain environments
• Conducted security audits for blockchain protocols

Engineered scalable backend systems using Go and Rust, focusing on high-availability and fault-tolerant architectures. Developed data-intensive applications with a strong emphasis on performance and reliability.

• Led the migration to a microservices architecture in Go
• Optimized query performance in Postgres for large datasets
• Implemented CI/CD pipelines for automated testing and deployment