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 Interviewerlaunching soon
ClaudeGPTDeepSeekQwenKimiRAGMulti-modelReal-time STT / TTS
Focus / Web3
Since 2018Blockchain / Web3
Decentralized apps that people can actually use.
- Composable Foundation — Picasso & MantisCross-chain transfers & intent swaps
- Star Atlas — Galactic MarketplaceSolana order-book marketplace
- NMKRCardano NFT tooling
SolanaPolkadot / KusamaCosmos / IBCCardanoEthereum / EVMSolidity
Portfolio
Selected Work
4 projectsToolkit
Stack
AI
- LLMs (GPT / Claude)2
- RAG2
- Multi-model Orchestration1
- Realtime Voice (STT / TTS)1
- Qdrant1
- Python8
Blockchain / Web3
- Solidity5
- Smart Contracts5
- Ethers.js4
- Wagmi3
- EVM / Web35
Frontend
- React9
- NextJS6
- Angular7
- VueJS5
- Typescript8
- Javascript14
- Tailwind CSS4
Backend
- Node.js10
- NestJS5
- GraphQL6
- MongoDB9
- Firebase7
Mobile
- Flutter6
- Dart6
- Kotlin4
- Swift4
- React Native6
Tooling
- Docker7
- Kubernetes3
- Git14
- Figma6
- Sketch7
Career
Experience
22 yearsContact
Let's talk.
Open to select work and the occasional good conversation.