daniboomerang
Senior Frontend Architect | Web3 | Ai Integration
Daniel Estevez — AI Product Engineer
Software engineer with 15+ years of experience. I started my career as a backend engineer. My heart is in the frontend — UI/UX, visual detail, elegant interfaces. My direction is AI, and I can build anything.
I love code. I write elegant, scalable software and I care deeply about architecture, product quality, and craft. I've built SaaS platforms, desktop apps, real-time multiplayer systems, blockchain dApps, and AI infrastructure — always with the same standard: code I'm proud of, systems that scale, products that work.
Over the last four years I've integrated AI deeply into how I develop. I use agents to execute my designs, not replace my thinking. I tell them what to build. I own every decision. This multiplies my output without sacrificing quality or control.
I know how to make a codebase AI-ready — structured specs, clear boundaries, human judgment at every critical gate. I know how to bring this to a team and teach engineers to work the same way.
Atta Labs is my personal laboratory — where I investigate how LLMs, agent orchestration, and deliberation engines work in production. Everything shipped, everything real.
Experience: 11 years
Yearly salary: $140,000
Hourly rate: $100
Nationality: 🇪🇸 Spain
Residency: 🇹🇭 Thailand
Experience
Senior Frontend Architect
Game7 2023 - 2026
Architected a complex multi-tenant SaaS platform (React, NextJS, TypeScript, shadcn/ui, Sanity CMS) with gamification, Web3 integration, and deep AI-powered customization across the entire product. Designed and built a full AI page generation system (lovable-style experience): orchestrated specialized agents in parallel per page section, with a brief-generation agent, section-tree composer, per-section specialist agents, and a deterministic critique layer for validation. Optimized AI generation pipeline for cost and speed — parallelized section agents using lighter models, reducing generation time to the duration of the slowest single section. Built a custom snapshot-based testing framework for AI outputs: hundreds of prompt combinations tested, validated against snapshots, and iteratively corrected — bringing engineering rigor to non-deterministic AI systems. Delivered AI-assisted admin tools for tenants: quest creation, dashboard configuration, and UI theming with OKLCH color science and shadcn/Radix components. Established architecture patterns, code quality standards, and PR review practices across the frontend stack.
Lead Frontend Engineer
Elixir Games 2021 - 2023
Led the entire frontend team — architecture decisions, code quality ownership, and technical direction across all products. Built the Elixir Launcher from scratch: a cross-platform Web3 game launcher (Electron + NextJS) for Windows, Linux, and macOS. Developed the Elixir web launcher and Developer Dashboard (NextJS) for game publishing and management. Led frontend for two blockchain gaming dApps: Monstropoly and No Way Back.
Frontend Engineer
Sherpany 2020 - 2021
Built frontend features for a board management SaaS platform using TypeScript, React, and Redux. Transformed wireframes into polished, accessible UI components with Ant Design. Comprehensive testing with Jest and React Testing Library.
Frontend Developer
Conferize 2016 - 2020
Built and maintained the Conferize event platform over 4 years as the primary frontend engineer. Implemented complex GraphQL integrations with Apollo Client for real-time data.
Full Stack Web Developer
Freelance / Digital Nomad 2013 - 2016
Built full-stack web applications for international clients using MEAN stack (MongoDB, Express, AngularJS, NodeJS). End-to-end delivery: UX design, responsive development, REST API architecture, testing, and deployment.
Software Engineer
Amadeus IT Group 2010 - 2013
R&D on the core booking engine — one of the world’s largest travel technology platforms. Delivered features across UI, business logic, and GDS integration layers via Amadeus Web Services. Managed full project lifecycles from specifications through QA to production.
Software Engineer
Zennio 2008 - 2010
Designed and developed home automation products (EIB/KNX standard) using C, J2EE, and LabView.
Skills
ai
graphql
nextjs
react
tailwind
typescript
web3
web3js
english
french
spanish