Technologies I Use to Deliver Results

My battle-tested stack for building AI products that scale.

React
Node.js
Python
Supabase
Tailwind
express
Express
Docker
Vercel
PostgreSQL
Stripe
Next.js
AWS
LLM APIs
OpenAI
OpenAI
Anthropic
Anthropic
Gemini
Gemini
Grok
Grok
OpenRouter
OpenRouter

Featured Projects

Arena Platform Interface
Arena Features Dashboard

AI Behavior & Strategy Benchmark

Viral

Problem: Businesses are choosing multi-million dollar AI models based on incomplete data. They test for capability but are blind to a model's character—its trustworthiness, strategic flaws, and potential for ruthless or naive behavior.

Solution: I built a full-stack platform that forces top LLMs into the Prisoner's Dilemma, creating the first public benchmark for their emergent strategic behavior.

🎯 Sparked viral discussion across AI communities. Result: Revealed unique "personality" flaws in major AI models, creating a viral project cited by AI enthusiasts and demonstrating deep expertise in multi-LLM integration and behavioral analysis.
React • Node.js • Multi-LLM Integration • Game Theory

Bookwiz.io

$3.3K MRR

Problem: Authors and writers were struggling with writer's block and needed a tool that provided intelligent, context-aware assistance beyond simple grammar checks.

Solution: Built an agentic AI writing assistant from the ground up, with a complete SaaS platform including user management, Stripe payments, and a high-performance backend.

💰 Scaled a solo-founder SaaS to $3,300 MRR and 55,000+ users. Result: This platform now serves authors worldwide with a complete SaaS infrastructure. Built a product that people actually pay for.
React • Node.js • LLM Integration • Stripe • SaaS
BookWiz Dashboard Interface
BookWiz Writing Assistant
BookWiz AI Features

Vkashti.bar

Problem: A popular local bar was struggling with operational chaos, from reservations and inventory to staff coordination and customer engagement.

Solution: Developed a comprehensive web platform and AI-powered Discord bots to automate everything: reservations with SMS confirmations, staff task delegation, natural language inventory tracking, and even real-time quiz nights.

⚡ Streamlined 90% of daily bar operations with AI automation. Result: Increased efficiency and proved I can apply complex tech solutions to solve messy, real-world business problems.
Next.js • Discord API • AI/NLP • SMS Integration

Career Journey

2016 - Present

Founder & Lead Developer @ Moonhythe

As the principal of Moonhythe, I've acted as a fractional CTO and lead AI engineer for 15+ clients. My focus is taking AI products from concept to launch, with expertise in full-stack development and AI integration.

2019 - 2021

Lead Frontend Developer @ ResearchSpace

Led frontend development for new product launches and modernized core application from jQuery to React, improving performance by 40% and reducing maintenance overhead by 60%.

2019 - 2021

Co-Founder & CTO @ BgMentor

Led technical strategy and platform development using Ruby on Rails and Vue.js. Built scalable architecture supporting 10,000+ users and managed team of 3 developers.

What Clients Say

Real feedback from projects I've delivered.

A

Anonymous Client

SaaS Platform Development

"Kristiyan delivered our AI-powered platform ahead of schedule. His technical expertise and ability to translate complex requirements into elegant solutions exceeded our expectations."

S

Startup Founder

Custom CMS System

"Working with Kristiyan was a game-changer. He built a custom CMS that perfectly fits our workflow, and the AI integration he implemented has saved us hours every week."

Education

2015 - 2019

BSc in Computer Science and Management Science

The University of Edinburgh

Comprehensive education in computer science fundamentals, software engineering principles, and business management strategies.

2008 - 2015

High School Diploma

Sofia High School of Mathematics

Specialized mathematics and science education with focus on advanced problem-solving and analytical thinking.

My Playbook: How We Can Work Together

I offer three focused engagements designed for speed and impact.

AI Feature Sprint

Your fastest path from idea to a working prototype.

A fixed 4-week engagement to build and ship one core AI feature.

Starting at $10k

AI Strategy & Roadmap

A 2-day intensive to de-risk your plan.

We'll define the highest-impact features, choose the right models, and create a clear technical roadmap.

Fixed 2-Day Engagement

Fractional AI Lead

Ongoing technical leadership and development.

I act as your dedicated AI expert to guide your team and product, without the full-time overhead.

Monthly Retainer (Inquire)

Ready to build something incredible?

I take on a limited number of projects per quarter to ensure every client gets the focus they deserve. My slots are filling up for Q4.

If you're a founder who needs to move fast and build with an expert, let's talk.