Interactive Resume

Ready for print or download as PDF.

Stephen Mainda

Senior Frontend Engineer & UI/UX Designer

smongare2004@gmail.com portfolio.vault-os.workers.dev github.com/Nevy11 Remote

Professional Summary

Senior Frontend Engineer and UI/UX Designer specializing in building highly secure, scalable, and performance-optimized web architectures. Proven expertise in React, TanStack Start, and Edge computing. Adept at transforming complex requirements into intelligent interfaces, optimizing system performance, and architecting real-time transactional platforms. Deeply passionate about cybersecurity, low-level systems experimentation, and crafting premium user experiences.

Technical Skills

Languages: TypeScript, JavaScript, Rust, Python, HTML/CSS

Frontend: React 19, TanStack Start, Vite, Tailwind CSS, Angular

Backend: Node.js, Supabase, Cloudflare Workers, PostgreSQL

Tools/Other: TensorFlow, Framer Motion, Git, Figma

Core Strengths

Communication SkillsDecision MakingEntrepreneurshipCreative Problem SolvingBrandingDiscipline

Relevant Projects

Vault (Financial Command Center)

Lead Full-Stack Developer

Architected a secure real-time ledger on Cloudflare Workers and TanStack Start. Handled multi-currency transactions, Stripe integrations, and M-Pesa callbacks with 100% ACID compliance and sub-50ms API response times globally.

React 19 • Supabase • Cloudflare Workers

Codevia

Creator & Engineer

Created an interactive learning workspace synchronizing YouTube video timestamps with an in-browser Monaco code editor using Angular Signals for zero-latency reactive state management.

Angular • Supabase Auth • Monaco Editor

Mental Health Diary Backend

Systems Engineer

Built an ultra-low memory footprint architecture in Rust (Actix-web) to ingest and process high-concurrency binary audio streams for transcription, reducing RAM overhead by 90% compared to Node.js.

Rust • Python • PostgreSQL

Other Experience & Interests

Founder & Operator: Successfully launched and managed a local Cyber Cafe and PS4 Gaming Hub, demonstrating entrepreneurship, operational management, and customer relations.
Cybersecurity Enthusiast: Daily engagement with Kali Linux and industry-standard penetration testing tools to continuously develop defensive and offensive security skills.

Education

Bachelor of Science in Computer Science

Laikipia University – Nyahururu, Kenya

Relevant Coursework: Artificial Intelligence, Machine Learning Theory, Data Structures, Database Systems, Computer Networks, Web Development, Distributed Systems.

Expected: 2026