Carlo Sevilla
AI Engineer
6+ years exp
4+ projects
TypeScript
Python
Solidity
Move
Node JS
JavaScript
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Overview
Technical skills
Timeline
Roles
Overview
Fullstack developer focused on Web3 frontend and backend integrations at a middle level with the strongest practical strength in building blockchain transaction and IPFS upload flows. The strongest proven skill is implementing end-to-end token creation and signing logic as shown in backend/createToken.js which integrates IPFS/S3 uploads and Solana VersionedTransaction deserialization and signing. The public code does not show comprehensive test coverage, formal security hardening (private key handling is logged) or measured performance and accessibility work.
Phone
Technical skills
Languages
6
TypeScript
Python
Solidity
Move
Node JS
JavaScript
Node JS
3
Axios
Bcrypt
Express
Frontend
7
React.js
Next.js
Bootstrap
React Query
Zod
Tailwind CSS
Redux
Web3
16
Wagmi
Ethers.js
DeFi
NFT
Hardhat
Aderyn
Bitcoin
Uniswap
Aave
Compound
Ethereum
Polygon
Viem
Aptos
Morpho
Web3.js
AI/ML
10
PyTorch
Scikit-learn
Stable-Baselines3
JAX
Gemini
LLM
Transformers
Pandas
TensorFlow
Ollama
DevOps
5
Docker
AWS
GCP
Amazon EC2
AWS Lambda
Other
23
RainbowKit
Django
PostgreSQL
FastAPI
Chroma
Vite
Rest API
ESLint
Foundry
GraphQL
PostCSS
Reown
AI Agents
RAG
Agora
Smart Contracts
Prompt Engineering
Staking
NLP
Reinforcement Learning
Vector
Token Standards
Anomaly Detection
Timeline
Founding Engineer
•
Middle
LiveSpan Network Inc.
•
Contractor
Founded the command-center application layer for an edge-computing platform, delivering the dashboard UI and node status monitoring (online/offline/alert). Built facility-management CRUD and a telemetry ingestion pipeline for health metrics per box node. Produced working prototypes, a REST backend, and complete technical documentation that supported a stakeholder demo.
React.js
Node JS
Express
Tailwind CSS
PostgreSQL
AI Platform Engineer (Independent/Open-Source)
•
Middle
Subnet Sentinel
•
Full-Time
Built a full-stack Bittensor subnet intelligence platform with real-time leaderboard pages and on-chain hyperparameter monitoring. Implemented per-metric rolling-baseline anomaly detection with compound alerting and a severity taxonomy. Developed a Gemini+Chroma RAG conversational agent with SSE streaming, freshness disclosure, and on-demand chain refresh. Also created a GitHub repo analysis pipeline using local Ollama summarization with a hybrid provider architecture.
Python
FastAPI
Next.js
React.js
Tailwind CSS
PostgreSQL
Chroma
Ollama
Gemini
Docker
AI Full-Stack Developer
•
Middle
Upwork
•
Freelance
Built an AI-powered tweet repurposing product that imports a source tweet URL, generates customized copy from prompt templates, and exports multiple image/PDF formats. Developed a backend data-analysis and PDF-generation system for a fintech presentation platform using Django and Docker. Improved PDF print-module data accuracy and delivered a working remote workflow for integration and deployment.
Django
Docker
TypeScript
React.js
AI/ML Engineer
•
Middle
Self-Employed
•
Full-Time
Built and deployed production ML systems across multiple Bittensor subnets, including a Random Forest model for real-time DDoS detection. Developed a Bitcoin forecasting approach combining trading logic with time-series forecasting and reinforcement-learning agents for autonomous drone flight. Also implemented DeFi yield allocation logic across multiple protocols and a REST voting system with signature verification for on-chain interaction.
Python
PyTorch
Scikit-learn
Stable-Baselines3
JAX
Solidity
Aave
Compound
Uniswap
Bitcoin
Architecture Designer, Smart Contract Developer
•
Lead
FactoryVerse
•
Full-Time
Designed Solidity-based on-chain systems with multiple modules and NFT token standards for game-related and staking use cases. Built Web3 frontend integrations using Ethers.js and wallet tooling to connect dapps to blockchain interactions. Authored and security-audited smart contracts using Hardhat and Aderyn, and supported integration with frontend teams for delivery.
Solidity
Ethers.js
Wagmi
RainbowKit
Hardhat
Aderyn
Web Developer / Intern Web Developer
•
Junior
TwistedResources
•
Full-Time
Developed responsive web interfaces, landing pages, and mobile-friendly pages using modern frontend tooling. Progressed from intern to full-time developer over multiple years while delivering production features and UI improvements. Supported application development using React/TypeScript and Next.js, including styling with Bootstrap.
Next.js
TypeScript
React.js
Bootstrap
Holy Angel University (HAU)
Bachelor's Degree •
Computer Science
Junior Backend Developer
Confidence: Medium API Engineer
A junior Web3-focused engineer building small end-to-end NFT tooling and token-mint flows with practical Solana and frontend integration experience. The strongest proven skill is implementing an end-to-end NFT minting flow and transaction orchestration demonstrated by cryptostar7/pumpfun_token_launcher/backend/createToken.js and cryptostar7/pumpfun_token_launcher/src/lib/createToken.ts. The public code does not show production-grade API design, database schema evolution, robust security or observability practices.
API Design
2/10
How well APIs are designed
Minimal API design: single-versioned monolithic endpoints, no versioning, no idempotency, permissive CORS and limited error contract consistency.
Data Layer & Database
Working with databases
Not evidenced in public code
Scalability & Performance
2/10
Handling load and speed
Basic scaling awareness (body size limits) but no queueing, caching, connection pooling or retry/backoff strategies.
System Architecture
2/10
Overall system structure
Simple monolith separation between frontend and a small backend module; modest modularization but no clear service decomposition, config management, or graceful degradation.
Security & Auth
1/10
Protecting data and access
Security is weak: private keys handled in plaintext via requests and logged, permissive CORS, and no auth/input validation surfaced in human-authored code.
Reliability & Observability
1/10
Stability and monitoring
Minimal observability and reliability: console logs and basic try/catch only, no structured logging, no retries with backoff, no graceful shutdown or correlation ids.
Expertise
Node.js• Junior
Industries
Blockchain & Crypto• Junior
Technologies
Bcrypt
Recommendations
- Harden backend security: stop logging private keys, remove private-key-in-form flows, and add server-side key management or signer services.
- Improve API robustness: add versioning, input validation, clear error contracts, and idempotency for create endpoints.
- Add reliability patterns: implement retries with exponential backoff for external calls, timeouts, and graceful shutdown handling.
- Introduce a persistent data layer and migration history if state must be stored; add tests and structured logging/metrics for observability.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Junior Frontend Developer
Confidence: Medium Fullstack
Fullstack developer focused on Web3 frontend and backend integrations at a middle level with the strongest practical strength in building blockchain transaction and IPFS upload flows. The strongest proven skill is implementing end-to-end token creation and signing logic as shown in backend/createToken.js which integrates IPFS/S3 uploads and Solana VersionedTransaction deserialization and signing. The public code does not show comprehensive test coverage, formal security hardening (private key handling is logged) or measured performance and accessibility work.
UI Component Architecture
4/10
How interface parts are built
Custom component-level state and a deliberate toast system show component design thinking, but there is limited evidence of a bigger design system or custom reusable component library authored from scratch.
Responsive & Cross-browser
3/10
Works on all screens and browsers
Responsive layout basics are present via Tailwind container settings and base CSS, but there is no sign of advanced responsive strategies such as container queries, RTL handling or progressive enhancement feature detection.
Performance Optimization
2/10
Speed of the interface
Small, pragmatic optimizations exist (limited toast queueing and some animations) but there is no measured performance work, bundle analysis, virtualization or deliberate code-splitting evidence.
Accessibility & Semantics
2/10
Usable for everyone
Minor a11y-aware touches are visible (focus ring styles, toast onOpenChange callback) but there is no systematic ARIA usage, keyboard management for custom widgets, or CI a11y tooling evidenced.
State Management & Data Flow
3/10
Managing data in the app
Server-client data flows and a custom in-memory toast state show practical state handling and async flows, including a backend BFF that performs blockchain transaction assembly; however there is little evidence of advanced server-state discipline like cancellation, optimistic updates with rollback, or formal state machines.
UX & Visual Polish
4/10
Look and feel quality
Good visual polish and UI transitions are present through custom CSS, tokenized theme variables and animations, indicating attention to perceived performance and presentation, though UX edge states and comprehensive error UI are limited.
Expertise
React• Junior
Modern Web Frameworks• Junior
Frontend Architecture & Build Tools• Junior
Industries
Blockchain & Crypto• Junior
Technologies
JavaScript
TypeScript• since 2020 • Senior
Node JS• since 2026 • Middle
Redux
GraphQL
Tailwind CSS• since 2026
Next.js• since 2020
Express• since 2026
Bootstrap• since 2020
React.js• since 2020
Vite
React Query
Axios
PostCSS
ESLint
Zod
Recommendations
- Implement secure secret handling and remove console logging of private keys; harden the backend createToken flow and add server-side input validation and retry strategies.
- Write unit and integration tests around the createToken flow and the toast system to improve reliability and make behaviour intentional for edge cases.
- Add explicit accessibility work and keyboard/focus management for custom UI elements and include axe or eslint-plugin-jsx-a11y in CI.
- Add telemetry and simple performance measurements (bundle report, LCP/INP before/after) and introduce code-splitting or lazy-loading for heavy UI routes or media upload flows.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Intern Blockchain Developer
Confidence: Low DApp Engineer
A junior dApp/frontend developer focused on Next.js web applications with early experience integrating web3 dependencies. Proven strength is Next.js frontend configuration and basic web3 stack usage as shown by next.config.js and the project package.json that includes wagmi/viem/ethers. There is no demonstrated original smart-contract design, audit/security work, or deep protocol-level engineering in the human-authored files analyzed.
Smart Contract Development
Writing smart contracts
Not evidenced in public code
Security & Audit
Checking contracts for flaws
Not evidenced in public code
Blockchain Protocol Understanding
Knowing how blockchains work
Not evidenced in public code
DApp & Web3 Integration
2/10
Connecting apps to blockchain
Basic dApp/frontend integration evidence (Next.js configuration and web build polyfill adjustments) and dependencies indicating wallet/web3 libraries; this is early-stage frontend dApp work rather than deep integration logic or transaction UX engineering.
Tokenomics & DeFi Logic
Token and finance logic
Not evidenced in public code
Decentralization & Trust Model
Designing trust without middlemen
Not evidenced in public code
Verified artifacts
Expertise
dApps & Web3 Frontend• Intern
Industries
Events & Ticketing• Intern
Technologies
Move• since 2024
Solidity• since 2023 • Junior
Foundry
Viem
Aderyn• since 2023
Polygon
Ethers.js• since 2023
Hardhat• since 2023
Web3.js
Aptos
Bitcoin• since 2025
Aave• since 2025
Uniswap• since 2025
Smart Contracts
Ethereum
Wagmi• since 2023
Reown
RainbowKit• since 2023
Compound• since 2025
DeFi• since 2021
NFT• since 2021
Staking
Token Standards
Morpho
Recommendations
- Build and maintain Next.js frontend wallet integration features (connect, sign, simple read operations) and polish transaction UX paths.
- Implement UI components for NFT minting and ticketing flows and pair them with small example contracts and end-to-end tests to demonstrate full-stack capability.
- Contribute to frontend integrations (wagmi/viem/ethers) and add explicit negative/failure paths (rejected tx, chain switch, pending state) and automated UI tests.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories: