James Harris

I'm James Harris

S e n i o r
S o f t w a r e
E n g i n e e r

AI Integration · Backend Systems · Blockchain Infrastructure

AI Integration & Backend Engineer with deep experience building production systems that handle real money, high concurrency, and external dependencies. I specialize in integrating Large Language Models into secure, transaction-safe backend architectures, combining AI, distributed systems, and blockchain to deliver reliable, cost-efficient, and observable production solutions.

skills

Back-End

90%

100%

Blockchain

100%

Front-end

95%

Database

100%

Mobile

80%

AWS

90%

SERVICES

Web Development

10+ years of experience with a backend-first focus, delivering scalable and production-ready web systems.
- Frontend: HTML5, CSS3, SCSS, Tailwind CSS, TypeScript
- Frameworks: React.js, Next.js, Vue.js, Nuxt.js, Angular, React Native
- Backend: Node.js, Express.js, NestJS, PHP (Laravel, CodeIgniter), Python
- Databases: PostgreSQL, MySQL, MongoDB
- API & Realtime: RESTful APIs, GraphQL (Apollo), WebSockets, Socket.IO
- UI & UX: Responsive design, Figma-based implementation
- Cloud & Tooling: AWS, GitHub, GitLab, CI/CD
- Process: Jira, Agile/Scrum, Cypress (testing)

View Work

AI Engineering

Designing and deploying applied AI systems with a strong emphasis on production reliability and integration.
- LLM integration (OpenAI / Azure AI / similar), RAG pipelines, prompt engineering
- Python-based ML development (PyTorch, TensorFlow, scikit-learn)
- Model training, fine-tuning, evaluation, and inference optimization
- MLOps pipelines, model versioning, and API deployment
- Applied AI systems: NLP, computer vision, recommendation systems
- Cloud AI platforms: AWS SageMaker, Vertex AI, self-hosted inference

View Work

Web Animations & Interactive UI

Advanced animation and interactive experiences with a strong design sensibility.
- Pure CSS animations and transitions
- 3D animations using Three.js and WebGL
- Canvas-based graphic animations
- SVG motion design and interactions
- Parallax scrolling and immersive UI effects
- Animation libraries: GSAP (GreenSock), Particles.js

View Work

Financial | Blockchain Systems

7+ years building secure, production-grade blockchain and financial platforms.
- Tech Stack: React, Vue.js, Node.js, Golang, Python, TypeScript
- Smart Contracts: Solidity, Rust, ERC-20, ERC-721, ERC-1155
- Blockchains: Ethereum, Solana, Binance Smart Chain, Polygon, Elrond
- Platforms: DeFi, CeFi, NFT platforms, DEXs, ICOs, token bridges
- Integrations: Wallet connectivity, on-chain/off-chain synchronization
- Automation: Discord & Telegram bots for Web3 platforms

View Work

Mobile Development

Cross-platform and native mobile app development for consumer and financial products.
- Cross-Platform: React Native, Flutter, Ionic
- Native: Java/Kotlin (Android), Swift (iOS)
- Applications: Social platforms, crypto wallets, e-commerce apps

View Work

My Hourly Rates

AI Integration & Development

LLM integration
RAG pipelines
Prompt engineering

LLM integration, RAG pipelines, Prompt engineering, Python-based ML development, Model training, fine-tuning, and evaluation, MLOps pipelines, model versioning

$60