Hire Freelance
Fintech Rust Developers in Germany







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
Softwareentwickler & Experte für generative KI
Develops on-premise document intelligence systems combining OCR and retrieval-augmented generation for automated document analysis. Produces generative media pipelines for Unreal Engine 5 projects, covering image-to-3D conversion, video, audio, and voice assets.
- Rust services using Axum, Tokio, SQLx, and Serde
- EU-compliant wine e-label generation platform
- SaaS displays for automated pharmacy emergency-duty information
- Custom ERP system for nonprofit operational workflows
Senior Software Engineer
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
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
Embedded Rust/C Software Developer
Developed firmware and system-level software for real-time embedded applications. Specialized in low-power device optimization and cross-platform compatibility.
- Integrated real-time operating systems into embedded devices
- Developed custom drivers for hardware peripherals
- Optimized memory usage in resource-constrained environments
UI Product Owner & Full Stack Developer
Developed embedded-system interfaces and web applications for industrial wind-energy products, including touch interfaces, firmware-release workflows, and remotely managed display content. Automated validation-ready firmware delivery and created product-facing pricing and content-management features for deployed equipment.
- Worked with semantic database concepts
- Implemented data-visualization interfaces
- Documented AI-assisted engineering workflows
- Automated Linux-based release operations
Software / Research Engineer
Works on Rust asynchronous systems and modular applications while applying long-term maintainability practices to complex enterprise codebases. Current research projects combine C++, CUDA, LibTorch, and tch-rs for GPU-accelerated machine-learning and numerical workloads.
- CUDA and GPU resource integration
- IPC and process-level resource management
- CMake, Cargo, Docker, and GitHub Actions
- Incremental refactoring of large Java systems
Software Engineer
Rewrote a production compiler targeting x86 and ARM, enabling a product launch through lower-level code-generation work. Delivered CUDA implementations achieving 10–20x speedups and applies Rust, C++, assembly, reverse engineering, and runtime development across blockchain, game-engine, and systems projects.
- LLVM compiler toolchain development
- Ghidra and IDA Pro binary analysis
- ARM and x86 assembly programming
- GPU kernel optimization with CUDA
Software Engineer
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
Software Engineer
Specialized in building secure and efficient concurrent systems using Rust and Go. Developed a high-performance network protocol stack to support distributed computing applications.
- Created scalable microservices with Scala for data-intensive applications
- Implemented complex algorithms in C for performance-critical systems
- Led cross-functional teams in adopting modern programming paradigms
Software Engineer
Built Kotlin Multiplatform bindings for the Rust vodozemac cryptography crate and SQLite, enabling shared native implementations across platforms. Developed Android Automotive eBPF profiling work with Rust and Kotlin, including zero-instrumentation performance analysis.
- Matrix SDK integration for secure messaging
- Encrypted information embedded in printed documents
- Rust and TypeScript supply-chain security research
- German digital-health messenger integrations
Independent Consultant & Technical Trainer
Designed a peer-to-peer privileged-access architecture that removes centralized single points of failure from trust and authorization paths. Implements security-sensitive systems in Rust, C++, and x86-64 assembly, spanning cryptographic protocols, kernel development, reverse engineering, and Windows/Linux internals.
- Custom cryptographic backbone for decentralized PAM
- Zero-trust identity and access-management architecture
- Tokio and Actix high-concurrency services
- IDA Pro, Ghidra, x64dbg, and WinDbg workflows
Platform/Software Engineer
Engineered a high-performance platform for data-intensive applications using Golang and Rust. Designed a custom SQL database engine for large-scale analytics.
- Developed Kotlin-based mobile applications
- Optimized systems using nix for configuration management
- Led TypeScript frontend development for scalability
DevOps Engineer
Designed and operated AWS cloud infrastructure with Terraform, Python, T-SQL, and security-focused interface integrations. Developed embedded control systems for camera-crane hardware using C, ARM, Java, and RTOS components, including app and web-service connectivity.
- Cloud security consulting
- Database-backed web applications
- Microcontroller and robotics development
- Automated infrastructure provisioning with Terraform
Lead Software Engineer
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
Software Developer
Implemented SQL-driven backend logic for Snowflake HR reporting and automated file routing between FTP and AWS S3, achieving 95% SLA compliance. Built a real-time multiplayer backend with TypeScript, WebSockets, and Cloudflare Durable Objects.
- Fifty-plus production deployments
- Jenkins and uDeploy release pipelines
- Autosys job monitoring
- Duplicate-data conflict resolution