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Blockchain & Web3 Rust Developers in Berlin

Built cross-chain settlement infrastructure for real customer funds, processing more than $500 million in cumulative volume and approximately $50 million weekly. Designed failure-recoverable transaction state machines in Rust and Move, covering partial commits, releases across systems, and idempotent retries.

• Integrated settlement workflows with internal REST APIs
• Evaluated Wormhole, Polymer, and CCIP integration tradeoffs
• Led external security audit through remediation and sign-off
• Authored protocol specifications and integration documentation

Founded a tech startup specializing in blockchain solutions, coding in Rust and Solidity. Developed a Python-based simulation environment for EVM contract testing.

• Implemented C# libraries for blockchain transaction verification
• Created TypeScript tools for decentralized application development
• Optimized Solidity contracts for gas efficiency

Engineered Web3 solutions using Rust and Solidity for decentralized finance platforms. Developed cross-platform applications with Next.js and Swift.

• Built Web3 solutions with Rust
• Focused on decentralized finance
• Developed cross-platform apps with Swift

Developed scalable web applications using modern frontend frameworks, focusing on performance and user experience. Built RESTful APIs for seamless integration with client-side applications, handling high volumes of concurrent requests. Optimized complex SQL queries for efficient data retrieval in large databases.

• Implemented server-side rendering for improved page load speed
• Utilized WebSocket for real-time client-server communication
• Created custom React hooks for reusable component logic
• Designed responsive UI components with CSS-in-JS solutions

Developed smart contracts and decentralized applications using Rust on Substrate. Implemented consensus algorithms and optimized blockchain node performance for high throughput.

• Designed secure cryptographic protocols
• Integrated Rust libraries with Android applications
• Contributed to open-source blockchain projects

Built and maintained web platforms using Ruby on Rails, JavaScript, React, Node.js, and Linux-based infrastructure. Applied event-store patterns, domain-driven design, test-driven development, and continuous delivery across full-stack applications and service integrations.

• Elixir service development
• MQTT messaging systems
• Hotwire application interfaces
• Nginx and Apache operations

Architected a high-performance distributed database system, enhancing concurrency and fault-tolerance using Rust and Erlang. Designed a novel consensus protocol to ensure data consistency across distributed nodes.

• Led migration from monolithic to microservices architecture
• Implemented custom query optimizer in Haskell
• Developed a multi-threaded storage engine in C

Built scalable backend systems using Rust and Golang for cloud-native applications. Automated CI/CD pipelines with GitHub Actions and Docker. Developed low-level system utilities for container orchestration.

• Built scalable backend systems with Rust and Golang
• Automated CI/CD with GitHub Actions
• Developed system utilities for container orchestration

Optimized FIX trading infrastructure from approximately 30 to 250 trades per second through concurrency and performance-focused backend changes. Built event-driven settlement workflows that aggregate transactions by instrument and support reliable financial operations.

• Kafka-to-FIX latency measured at 100ms p50 and 200ms p95
• Instrument-level fault isolation for settlement processing
• Database inbox/outbox optimization for event delivery
• SFTP report ingestion with deduplication and validation

Designed and migrated a carrier-integration platform serving millions of daily requests with availability above 99.99% and no customer-facing migration downtime. Implemented Rust/Axum accounting integration plus event-driven workflow services for shipment placement, invoicing, retention, and financial synchronization.

• Attribute-based authorization with CASL
• BullMQ event-processing workflows
• Kubernetes and Terraform platform operations
• GCP and AWS cloud migrations

Leads modernization of customer portals, pension-management software, fiscalization platforms, and order-management systems using Java, Kotlin, Spring Boot, React, and Node.js. Designed fiscalization architecture replacing POS, management, and deployment applications for retail and online commerce.

• Traffic-management system architecture
• Customer portal modernization
• DNT-Converter team oversight
• Applied mathematics background

Pioneered research and development in WebAssembly with Rust. Engineered cross-platform solutions using C and C++.

• Developed scalable backend services with TypeScript
• Contributed to Python-based R&D projects
• Optimized WASM modules for performance

Developed 3D graphics engines using Rust and WGSL, focusing on performance optimization and shader programming. Implemented scalable web services using Tokio and TypeScript.

• Configured package management with Nix
• Explored low-level systems programming in Zig
• Developed asynchronous network services

Engineered concurrent systems using Rust's Tokio and Futures for asynchronous programming. Developed backend services with Go and Dart for scalable applications.

• Optimized network protocols with Rust
• Integrated Bash scripts for system automation
• Designed microservices architecture