Daniel Moretti
Verified Expert in Engineering
Full-stack Engineer and Developer
Santiago, Chile
Toptal member since September 18, 2026
Daniel is a founding engineer and former CTO with 10+ years of experience building and scaling software. At Mappa, he took a voice AI platform from its first commit to 100+ B2B customers and thousands of individual users, led a team of 10+ engineers, and raised a $3.4 million seed round. Daniel's experience spans product development, architecture, infrastructure, and security, combining hands-on engineering with the leadership to turn any idea into a business.
Portfolio
Experience
- Linux - 14 years
- TypeScript - 10 years
- Node.js - 10 years
- Full-stack Development - 10 years
- Rust - 7 years
- Cloudflare - 5 years
- Stripe - 4 years
- AI Agents - 4 years
Work Experience
Co-founder and CTO
Mappa
- Built the product from first commit to 100+ B2B customers across the Americas, leading 10+ engineers while remaining the largest code contributor.
- Owned the architecture end to end, from the event-driven back end to AI agent workflows with tool use, retries, evaluations, queues, streaming, and PostgreSQL.
- Mappa raised a $3.4 million seed round and reached the final 20 of TechCrunch Startup Battlefield 200.
- Built the first of its class voice to a psychometrics neural network.
Full-stack Engineer and Evaluator
Woven Teams
- Reviewed codebases and engineering exercises across seniority levels for US hiring pipelines.
- Implemented automated evaluation systems to accelerate processes.
- Audited codebase for multiple senior-level engineers.
Independent Engineer
Freelance Agency
- Built production web applications end to end across sectors.
- Debugged and fixed multiple legacy systems in record time.
- Migrated legacy applications to modern stacks and implemented best practices.
Full-stack Engineer
Dar Spa
- Built their internal EHR software that manages thousands of patient records.
- Built their public-facing website and internal back-office tools.
- Automated their initial patient scheduling systems.
Security Researcher
HackerOne
- Built an internal custom white-hack tool to automate security analysis.
- Found and helped remediate multiple security vulnerabilities.
- Hacked (within their guidelines) into noteworthy companies such as Etoro and Vercel.
Project History
Behavioral Engine
https://conduit.mappa.ai/Historia MD | EHR Software
https://historiamd.comBordimo | Digital Embroidery
https://bordimo.comEducation
Bachelor's Degree in Computer Science
University of London - London, United Kingdom
Bachelor's Degree in Medicine
University of San Sebastian - Santiago de Chile, Chile
Skills
Libraries/APIs
Node.js, React, Playwright, Claude API, API Development, Stripe
Tools
GitHub, Git, TanStack Router, Claude Code, Sentry, Turbo, Claude, Jira
Languages
TypeScript, Rust, Python, Bash, JavaScript, CSS, HTML, SQL, C, Go
Frameworks
Next.js, Tailwind CSS, Agentic Frameworks, LangGraph, Svelte
Paradigms
Model Context Protocol (MCP), Responsive Web Design (RWD), Asynchronous Programming, Back-end Architecture, DevOps, Test Automation, Microservices
Platforms
Linux, Harness, Amazon Web Services (AWS), Docker, Kubernetes, Vercel, Google Cloud Platform (GCP)
Storage
Database Performance, MySQL, PostgreSQL, Data Pipelines, Redis, Databases, Datadog
Industry Expertise
Healthcare
Other
Message Queues, Security, hono, Bun, AI Agents, Full-stack Development, APIs, NeoVim Text Editor, Code Review, User Interface (UI), Technical Leadership, Web Scraping, Architecture, Artificial Intelligence (AI), Generative Artificial Intelligence (GenAI), Agentic AI, Text-to-Speech (TTS), AI Agent Orchestration, Large Language Models (LLMs), Front-end Development, AI-assisted Development, Turborepo, Anthropic, Prompt Engineering, Full-stack, Back-end, CI/CD Pipelines, Leadership, Web Development, Product Owner, Front-end, Database Optimization, Scripting, Cloudflare, Audio Processing, Performance Optimization, LangChain, Speech-to-Text (STT), FastAPI, CTO, Qwen, Concurrency, Video Streaming, Temporal, Computer Science, Systems Design, Algorithms, Data Structures, Healthcare Software, Electronic Health Records (EHR), Health IT, Machine Learning, Neural Networks, LLM Agents, Hacking, IT Security, OWASP, Headless CMS, Manual QA, Effect Typescript, WebAssembly (Wasm), Design, Supabase
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