Stanley Masinde

Building Rust-based systems for LLM training and evaluation. Designing advanced coding assessments around Rust internals whilst mentoring engineers on systems programming best practices and memory safety patterns.

• LLM Training Systems: Engineering Rust-based systems for training and evaluating large language models, focusing on performance-critical data processing pipelines and model evaluation frameworks.
• Technical Assessment Design: Designing and maintaining advanced coding assessments around Rust internals including ownership, lifetimes, async programming, and unsafe code patterns for evaluating systems programming expertise.
• Technical Mentorship: Leading live coding sessions, workshops, and technical evaluations for distributed engineering teams. Mentoring engineers on systems programming best practices, concurrency patterns, and memory safety.
• AI/ML Collaboration: Partnering with AI/LLM teams to refine training datasets and improve Rust-specific model training, contributing domain expertise in systems programming to enhance model quality.

Built Farm Direct marketplace platform from zero to production - evolved architecture from Laravel monolith to event-driven microservices supporting polyglot autonomous services (PHP/Node.js/Rust) that increased smallholder farmer sales by 60% over 18 months across 4 countries.

• Ground-Up Development: Built entire platform from concept when company had no existing technology infrastructure. Started with Laravel monolith for rapid prototyping, then evolved to microservices architecture with fully autonomous services deployed independently. Designed cloud-native architecture deployed on cost-optimized VPS infrastructure.
• Microservices Architecture: Led migration from monolithic Laravel to event-driven microservices with services in PHP, Node.js, and Rust. Each service independently deployable with dedicated databases and API contracts. Designed event-driven analytics service consuming system events (ORDER_PLACED, USER_REGISTERED) via AWS SQS for real-time business intelligence.
• Technical Hiring & Process Building: Established all development practices from scratch and led technical hiring decisions, defining skill requirements and conducting technical assessments. Created architecture supporting distributed team development with clear service boundaries, eliminating merge conflicts across autonomous services.
• Multi-Region Operations: Architected platform serving farmers across Kenya, Uganda, Tanzania, and Peru with multi-channel integration including USSD gateway (Node.js/Express) and WhatsApp Business API. Implemented comprehensive monitoring with error tracking (Sentry) and multi-region uptime monitoring achieving 99.5% availability.

Fast, offline image processing for the web. Resize and transform images at near-native speed using WebAssembly — no backend required.

• Zero dependencies:Runs entirely in the browser. No server round-trips, no heavy libraries.
• Native Perfromance:WebAssembly gives you speed close to Rust/C++ without leaving JavaScript.
• Privacy first:Images never leave the client. Perfect for offline and privacy-sensitive apps.

Privacy-focused Progressive Web App that expands shortened URLs and removes tracking parameters from links. Built with Vue.js/TypeScript frontend and Rust/Axum backend API for secure URL expansion and metadata extraction.

• Full-Stack Architecture: Vue.js/TypeScript PWA frontend with Rust/Axum backend API at lnky.api.stanleymasinde.com for URL expansion and redirect following
• Privacy-First Design: Client-side tracker removal (utm_*, fbclid, gclid) combined with backend URL expansion that doesn't store or track user data
• Progressive Web App: Full offline functionality using service workers and IndexedDB for bookmark management, with Android share target integration
• Rust Backend Service: High-performance Axum web framework with reqwest for HTTP handling, randomized User-Agent rotation, and secure redirect following from short domains (bit.ly, youtu.be, t.co)

Full-stack conversational insurance platform with integrated back office, enabling customers to purchase motor, health, and travel insurance directly through WhatsApp while providing comprehensive management tools for the client.

• Monolithic Architecture: Built with Nuxt.js full-stack framework for simplified deployment and maintenance, chosen specifically for client without dedicated tech team. Leveraged Node.js async model for productive development while maintaining acceptable performance.
• State Machine Implementation: Designed custom conversation flow management using Meta webhooks and server-side state persistence, handling complex insurance workflows across single webhook endpoint with session management.
• Back Office Integration: Developed comprehensive admin dashboard within same application for user management, policy tracking, conversation logs, and business analytics - eliminating need for separate systems.
• Payment & Integration: Integrated M-Pesa and card payment APIs with real-time policy issuance, connecting to insurance management systems via REST APIs for seamless policy fulfillment.

Mobile Web Specialist

Google Africa Scholarship via Udacity • Andela Learning Community (August 2018)

Completed intensive program covering advanced JavaScript, ES6+ features, Promises, Service Workers, and progressive web app development. Capstone project: Weather application with offline functionality.

• Founded structured open source community with weekly team syncs operating like a real company, providing first team development experience for many developers
• Led COVID-19 technology initiatives for Kenya including tracking apps and information platforms before regulatory constraints limited deployment
• Served as professional reference for community members using their contributions as proof of team experience for job applications
• Coordinated collaborative development across 30+ repositories including deployment tools, PWA generators, and national emergency response applications

Conference Speaking

• Mentored next cohorts in Mobile Web Track, sharing knowledge gained from scholarship program
• Helped plan and organize local meetups in Eldoret for Mobile Web Scholarship participants
• Provided hands-on code reviews and collaborative problem-solving sessions

"Let us talk about bitwise operations"

Medium, April 2025 • Computer Science Deep-Dive • Read Article

Comprehensive exploration of bitwise operations from first principles, covering binary number systems, CPU-level optimizations, and practical applications. Demonstrates understanding of low-level computing concepts including bit manipulation, memory efficiency, and hardware-level programming with Rust examples and real-world use cases like feature flags and embedded systems.

"SSH Deployment with GitHub Actions"

Medium, February 2023 • Monetized Article • Read Article

Comprehensive technical guide solving secure CI/CD deployment challenges. Covers SSH key management in dynamic GitHub Actions environments, secure server access patterns, and automated deployment workflows. Includes practical implementation examples with Nuxt.js, RSYNC file transfer, and complete security configuration for production deployments.