22 years experience
Logan Demir
Full Stack AI Engineer
- 22Years coding
- 40+Projects shipped
- 20+clients
- 30+Tech mastered
Profile
Senior engineer who thinks like a founder.
I take products from concept to production across AI, full-stack, Web3, and DevOps — and right now I'm building HireUp, a real-time AI voice interviewer, end to end and solo.
I work hands-on with the major LLMs, RAG, and low-latency speech systems, and I care about the things a founder cares about: shipping, product-market fit, and lean systems that stay simple as they scale.
Calm, direct, and focused on owning outcomes.
Focus / AI
PriorityAI Engineering
Real-time, voice-first AI — built end to end.
FeaturedHireUpAI Voice InterviewerIn testing, launching soon
ClaudeGPTDeepSeekQwenKimiRAGMulti-modelReal-time STT / TTS
Focus / Web3
Since 2018Blockchain / Web3
Decentralized apps that people can actually use.
- Composable Foundation — Picasso & MantisCross-chain (IBC) · $30M+ moved
- Star Atlas — Galactic MarketplaceSolana NFT/SFT marketplace
- NMKRCardano NFT tooling
SolanaPolkadot / KusamaCosmos / IBCCardanoEthereum / EVMSolidity
Portfolio
Selected Work
4 projectsToolkit
Stack
AI
- LLMs (GPT / Claude)
- RAG
- Multi-model Orchestration
- Realtime Voice (STT / TTS)
- Qdrant
- Python
Blockchain / Web3
- Solidity
- Smart Contracts
- Ethers.js
- Wagmi
- EVM / Web3
Frontend
- React
- NextJS
- Angular
- VueJS
- Typescript
- Javascript
- Tailwind CSS
Backend
- Node.js
- NestJS
- GraphQL
- MongoDB
- Firebase
Mobile
- Flutter
- Dart
- Kotlin
- Swift
- React Native
Tooling
- Docker
- Kubernetes
- Git
- Figma
- Sketch
Career
Experience
22 yearsContact
Let's talk.
Open to select work and the occasional good conversation.