Sylvan Bloch

Senior Rust Software Engineer

About Me

Sylvan Bloch

Software Engineer: Rust, Backend, Web3, High-Performance Systems

Projects
Experience

I'm a Senior Software Engineer with over 5+ years of experience, primarily in backend, but across a wide range of technologies, contexts and industries. My passion is high-performance Rust development, with active experience in contexts such as:

  • Backend Web Development
  • Web3, primarily off-chain backend infrastructure such as high-performance trading
  • Desktop GUI and CLI development (Linux, Windows)
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Projects

Personal Website

Full-stack personal website built entirely in Rust — no JavaScript. The frontend is a reactive SPA compiled to WebAssembly via Leptos, with server-side rendering and seamless client-side hydration. Most components written from scratch in pure HTML and CSS.

Rating: 5

Check it out here!

Experience

Aug 2025—PRESENT

Lead Rust Engineer & Architect

Dataswyft
  • Lead and architect of the Platform team powering all Dataswyft technology
  • Spearheading replacement of Scala-based microservices with strategically planned Rust components to scale to a large influx of users
  • Taking advantage of Rust's significant performance benefits for lower cloud architecture costs and simplified, maintainable code design
  • Rust
  • Microservices
  • Architecture
  • Scala Migration
2026—PRESENT

Rust Software Engineer

Stealth Startup
  • Co-developed low-latency crypto arbitrage trading bot using basis arbitrage strategy on Ethereum and Aptos, integrating with CEXs (Binance, Bybit, OKX) and DEXs (Hyperliquid, Decibel)
  • Led end-to-end development of Ethereum hack detection tool from broken PoC to functional product in under two months — deep transaction analysis including traces, opcodes, and calldata decoding
  • Integrated real-time mempool streaming via Reth's advanced functionality for proactive threat detection
  • Built custom WebSocket client and server using tokio-tungstenite, optimizing for minimal latency in market data streaming and order execution
  • Architected organization-wide Rust library with feature-gating, crate splitting, and dependency management — major improvements to build time and development velocity
  • Rust
  • Tokio
  • Blockchain
  • Ethereum
  • Aptos
  • DeFi
  • CEX/DEX Arbitrage
  • Reth
  • WebSocket
  • ethers-rs
  • alloy
APR-AUG 2025

Rust Developer

Rocketseed
  • Core Rust software lead for high-performance email data processing where resource efficiency and performance are paramount
  • Implemented Agile/Scrum methodology as Scrum Master, improving documentation and software architecture diagrams
  • Rewrote Node.js plugin to TypeScript for better maintainability, fewer bugs, and higher performance
  • Maintaining legacy C++ core until Rust transition is complete
  • Rust
  • TypeScript
  • C++
  • Node.js
  • Agile/Scrum
Aug 2023 — Apr 2025

Rust & C++ Software Engineer

Civil Designer
  • Solo developed Actix-web + SQLx/SeaORM + Postgres analytics pipeline on AWS EC2/Azure, ingesting data from thousands of CAD users; fully dockerized
  • Pioneered Rust adoption at company; created entire CI/CD infrastructure on self-managed Linux server with GitLab and custom Docker images for Rust builds on Windows
  • Solo-developed high-performance Rust desktop-to-cloud file sync application with Actix-web, Tokio, REST API, and OAuth 2.0
  • Integrated Rust into legacy MFC application via WebView2 with custom JavaScript compatibility layer linking C++ code to WASM-based Leptos components
  • Created Diligent Engine (Vulkan/DX12) rendering backend with multi-threaded algorithms that reduced frame-time by over 400%
  • Rust
  • C++
  • Actix-web
  • SQLx
  • Postgres
  • Docker
  • AWS
  • Azure
  • Vulkan
  • DirectX12
  • Leptos
  • WASM
  • GitLab CI/CD
Nov 2023 — Present

Freelance Rust/C++ Engineer

Self-employed
  • Taught Rust and C/C++ to clients from diverse backgrounds including general applications, cryptocurrency projects, and 3D rendering
  • Delivered end-to-end solutions including a complete racing game in C++ with Modern OpenGL and Win32 API
  • Managed all aspects of client interactions from consultation and planning through delivery
  • Rust
  • C++
  • OpenGL
  • Win32 API
  • Teaching
Apr 2021 — Aug 2023

Software Development Engineer

Peralex
  • Enhanced and maintained in-house OpenGL rendering engine, improving graphing and data visualization capabilities
  • Led C++ and Java GUI development for commercial spectrum monitoring tools using OOP and functional programming principles
  • Established team coding standards emphasizing simplicity, reduced cognitive complexity, and clean code practices
  • Worked with PostgreSQL and H2 databases for data-intensive applications
  • C++
  • Java
  • OpenGL
  • PostgreSQL
  • GUI Development
Dec 2019 — Aug 2020

Vacation Work Intern

Peralex
  • Contributed to TypeScript-based GIS for real-time aircraft tracking through passive radar system
  • Developed C++/Qt GUI for direct hardware management of radar
  • Pioneered use of Elastic Stack within company to generate and analyze detailed performance metrics for radar system
  • TypeScript
  • C++
  • Qt
  • Elastic Stack
  • GIS