AI
AI-focused engineering for enterprise-grade products

Hector Rosales OrtizSenior AI & Full Stack Engineer

Building AI-Powered Products, Enterprise Platforms, and Scalable Digital Experiences.

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About Me

A product-minded engineer for AI-era platforms.

I combine deep full stack delivery with AI architecture, cloud systems, and technical leadership for teams that need polished products and durable engineering.

Portrait of Hector Rosales Ortiz

Hector Rosales Ortiz

Senior AI & Full Stack Engineer

Engineering leadership with product taste.

Senior engineer with 10+ years building web, mobile, AI, and cloud systems for high-growth and enterprise teams.

Specialized in translating complex business goals into scalable architectures, premium interfaces, and reliable delivery plans.

Focused on AI assistants, retrieval augmented generation, production integrations, and developer platforms that improve real workflows.

AI Product Engineering

LLM-powered workflows, RAG platforms, agentic systems, prompt strategies, and production-grade AI assistants.

Technical Leadership

Architecture decisions, mentoring, code quality, delivery strategy, and enterprise stakeholder alignment.

Cloud Architecture

Scalable platforms across AWS, Azure, and GCP with containerized workloads and CI/CD automation.

End-to-End Platforms

Modern web, mobile, backend, API, data, and DevOps delivery for high-growth digital products.

01

Discovery

Clarify outcomes, users, constraints, and the business value behind the work.

02

Architecture

Design scalable foundations across UI, API, data, AI, and cloud infrastructure.

03

Delivery

Ship maintainable products with strong code quality and high-performance UX.

04

Optimization

Measure, refine, automate, and improve reliability after launch.

Skills

A modern stack for AI-powered digital products.

Deep product engineering across LLM systems, frontend craft, backend services, mobile platforms, and cloud operations.

AI & LLM

96%

Applied AI systems that combine model reasoning, retrieval, tools, and product UX.

OpenAILangChainLlamaIndexRAGAI AgentsVector DatabasesPrompt Engineering

Frontend

95%

Premium interfaces with strong accessibility, animation, and product polish.

TypeScriptReactNext.jsAngularTailwindMaterial UIPHPLaravel

Backend

92%

Secure, scalable APIs and services for enterprise-grade systems.

PythonFastAPIDjangoNode.jsNestJSSpring BootGraphQLREST APIs

Mobile

92%

High-performance mobile experiences across Flutter, React Native, and native ecosystems.

FlutterReact NativeSwiftSwiftUIKotlin

Cloud & DevOps

90%

Reliable delivery pipelines, observability-ready deployments, and cloud-native architecture.

AWSAzureGCPDockerKubernetesCI/CD
Experience

Professional experience across web, mobile, SaaS, and AI.

A career path from full-stack web foundations to enterprise mobile platforms, freelance product delivery, and production AI systems.

Contributions

  • Developed AI-powered applications and enterprise automation platforms.
  • Built RAG systems, AI assistants, and multi-agent workflows.
  • Integrated LLM technologies into existing business systems.
  • Designed cloud-native AI infrastructure and deployment pipelines.
  • Consulted clients on AI strategy and implementation.

Impact

  • Delivered production-ready AI business solutions.
  • Built enterprise knowledge management and search systems.
  • Reduced operational costs through intelligent automation.
  • Successfully launched AI-powered SaaS products.
Featured Projects

Selected projects shaped for scale, polish, and business outcomes.

Enterprise AI, food delivery, mobile commerce, SaaS, and banking platform work with modern architectures and refined user experiences.

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Featured

Globant

Project: Enterprise AI Applications

Senior AI & Full Stack Engineer
January 2024 - PresentRemote, Mexico
PythonFastAPIReactNext.jsTypeScriptOpenAI APILangChain

Globant

Project: Enterprise AI Applications

Enterprise AI applications using Large Language Models, RAG systems, AI assistants, and OpenAI-based workflow integrations.

Delivered production-ready AI-powered business solutions and enterprise knowledge management systems powered by LLMs.

Contributions

  • Developed enterprise AI applications using Large Language Models.
  • Built Retrieval-Augmented Generation (RAG) systems and AI assistants.
  • Integrated OpenAI-based solutions into enterprise workflows.
  • Designed scalable cloud-native applications.
  • Led technical architecture discussions and code reviews.
  • Mentored engineering teams on AI adoption and implementation.

Impact

  • Delivered production-ready AI-powered business solutions.
  • Improved operational efficiency through intelligent automation.
  • Built enterprise knowledge management systems powered by LLMs.
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Featured

DiDiFood

Project: Food Delivery & Super App Platform

Full Stack Developer
May 2025 - July 2025Mexico
ReactNext.jsTailwind CSSTypeScriptSwiperVercel

DiDiFood

Project: Food Delivery & Super App Platform

A modern food delivery and super app platform inspired by large-scale on-demand ecosystems, with restaurant discovery, promotional sections, dynamic content modules, and mobile-first UX.

Delivered a production-ready food delivery platform with modern UX standards, reusable frontend architecture, and optimized Lighthouse performance.

Contributions

  • Designed and implemented scalable frontend architecture using React and Next.js.
  • Built reusable UI components and mobile-first interfaces using Tailwind CSS.
  • Integrated Swiper-based promotional carousels and interactive content sections.
  • Managed deployment pipelines and production hosting using Vercel.

Impact

  • Created reusable frontend architecture for future feature development.
  • Improved SEO, rendering performance, and page loading speed through Next.js optimization techniques.
  • Established scalable development patterns for future platform growth.
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Featured

Rappi

Project: Rappi Consumer Platform

Senior Native Mobile Engineer
April 2021 - December 2023Mexico City, Mexico
SwiftSwiftUIObjective-CJavaKotliniOSAndroid

Rappi

Project: Rappi Consumer Platform

Large-scale native iOS and Android consumer platform work across ordering, logistics, mobile performance, monitoring, and analytics in a massive enterprise mobile codebase.

Contributed to native mobile applications serving millions of users while working with a 100+ member engineering organization and a source codebase larger than 10 GB.

Contributions

  • Developed native iOS and Android features for large-scale consumer applications.
  • Worked across Swift, SwiftUI, Objective-C, Java, and Kotlin codebases.
  • Collaborated with a 100+ member engineering organization across product, design, QA, and platform teams.
  • Navigated and maintained a source codebase larger than 10 GB.
  • Improved native mobile performance, reliability, and maintainability.
  • Implemented monitoring and analytics solutions for mobile product behavior.

Impact

  • Contributed to applications serving millions of users.
  • Improved native mobile application performance and stability.
  • Supported large-scale releases across iOS and Android platforms.
  • Collaborated effectively within a large engineering team and complex enterprise codebase.
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Wizeline

Project: Enterprise SaaS Products

Senior Full Stack Engineer
January 2019 - March 2021Guadalajara, Mexico
ReactTypeScriptNode.jsGraphQLGCPKubernetesPostgreSQL

Wizeline

Project: Enterprise SaaS Products

Enterprise SaaS products for international clients, including scalable frontend and backend architectures, microservices, and cloud-native applications.

Delivered digital transformation projects, improved engineering efficiency through reusable frameworks, and reduced deployment times with CI/CD automation.

Contributions

  • Developed enterprise SaaS products for international clients.
  • Designed scalable frontend and backend architectures.
  • Built microservices and cloud-native applications.
  • Mentored junior engineers and conducted code reviews.
  • Participated in Agile product development.

Impact

  • Delivered multiple digital transformation projects.
  • Improved engineering efficiency through reusable frameworks.
  • Reduced deployment times using CI/CD automation.
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Softtek

Project: Enterprise Banking & Retail Solutions

Full Stack Developer
January 2016 - December 2018Mexico City, Mexico
JavaSpring BootAngularJSJavaScriptMySQLSQL Server

Softtek

Project: Enterprise Banking & Retail Solutions

Enterprise software solutions for banking and retail clients, including REST APIs, backend services, responsive interfaces, and legacy modernization.

Delivered multiple enterprise projects, improved system performance, and contributed to modernization of legacy applications.

Contributions

  • Developed enterprise software solutions for banking and retail clients.
  • Created REST APIs and backend services.
  • Built responsive web interfaces.
  • Optimized database performance and application reliability.
  • Participated in Agile software development teams.

Impact

  • Successfully delivered multiple enterprise projects.
  • Improved system performance through code optimization.
  • Contributed to modernization of legacy applications.
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Featured

Expensify

Project: Expense Management App

React Native Engineer
September 2021 - December 2022USA
React NativeTypeScriptJavaScriptiOSAndroidREST APIsAPI Integration

Expensify

Project: Expense Management App

Large open-source React Native expense management platform where I contributed bug fixes and improvements across UI, functionality, Markdown rendering, and mobile app workflows.

Contributed targeted bug fixes and product improvements to a large GitHub open-source project powering cross-platform expense management, chat, payments, and accounting workflows.

Contributions

  • Contributed bug fixes across the open-source Expensify React Native application.
  • Fixed UI issues across mobile and responsive app surfaces.
  • Improved application functionality in expense management and collaboration workflows.
  • Resolved Markdown rendering and content formatting issues.
  • Worked across TypeScript, JavaScript, React Native, iOS, Android, and shared app logic.

Impact

  • Contributed to one of the largest open-source React Native financial productivity applications on GitHub.
  • Improved quality and user experience through focused fixes across UI, functionality, and Markdown behavior.
  • Supported a cross-platform codebase serving web, iOS, Android, and desktop app experiences.
Golden Suisse project thumbnail
Featured

Golden Suisse

Project: Swiss Wealth Protection Platform

Mobile & Nuxt.js Engineer
December 2022 - January 2024Switzerland
React NativeSwiftObjective-CJavaKotlinNuxt.jsVue.js

Golden Suisse

Project: Swiss Wealth Protection Platform

Swiss wealth protection platform with gold and silver vaulting, global payments, native mobile banking features, and a Nuxt.js web platform for wealth management.

Built secure native mobile and Nuxt.js web experiences for wealth protection, vaulting, global payments, multi-currency workflows, and real-time financial data synchronization.

Contributions

  • Developed native mobile application features with secure banking workflows, payment processing, and account management.
  • Built Nuxt.js and Vue.js web platform features for wealth management dashboards and transaction systems.
  • Implemented secure authentication flows for financial account access.
  • Supported multi-currency functionality and global payment workflows.
  • Integrated banking APIs and real-time financial data synchronization across mobile and web experiences.

Impact

  • Delivered secure wealth management experiences for gold and silver vaulting workflows.
  • Built cross-platform financial product features spanning native mobile and Nuxt.js web interfaces.
  • Improved account, transaction, and payment visibility through real-time synchronized financial data.
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Featured

HUH Social

Project: Cryptocurrency Collective Token

Blockchain / Smart Contract Developer
November 2021 - February 2022
SolidityBlockchainBSCSmart ContractsToken DevelopmentDeFiReflection Token

HUH Social

Project: Cryptocurrency Collective Token

Cryptocurrency collective token on BSC with reflection rewards, BNB redistribution, an ABC referral system, LP acquisition mechanics, and presale/community engagement flows.

Built token mechanics and supporting web flows for a BSC cryptocurrency project, including holder rewards, transfer redistribution, referral incentives, liquidity acquisition, and presale engagement.

Contributions

  • Developed Solidity smart contracts for a cryptocurrency token on Binance Smart Chain.
  • Implemented static reflection rewards for token holders.
  • Built BNB redistribution logic on transfers.
  • Implemented an ABC referral system with multi-level reward mechanics.
  • Added LP acquisition mechanisms and reduced referral sell tax behavior.
  • Built a WordPress site for presale participation and community engagement.

Impact

  • Delivered core tokenomics for a BSC-based collective cryptocurrency token.
  • Implemented reward mechanics across holder reflections, BNB redistribution, and referral incentives.
  • Supported presale and community growth through smart-contract and web platform delivery.
Certifications

Verified engineering credentials.

HackerRank certifications across frontend engineering, software engineering fundamentals, JavaScript, SQL, Node.js, Python, algorithms, and problem solving.

Frontend Developer (React) certificate
HackerRank

Frontend Developer (React)

Role Certificate

Verified certificate
Verify
Software Engineer certificate
HackerRank

Software Engineer

Role Certificate

Verified certificate
Verify
JavaScript (Intermediate) certificate
HackerRank

JavaScript (Intermediate)

Skill Certificate

Verified certificate
Verify
Problem Solving (Intermediate) certificate
HackerRank

Problem Solving (Intermediate)

Skill Certificate

Verified certificate
Verify
SQL (Advanced) certificate
HackerRank

SQL (Advanced)

Skill Certificate

Verified certificate
Verify
Node.js (Intermediate) certificate
HackerRank

Node.js (Intermediate)

Skill Certificate

Verified certificate
Verify
Python (Basic) certificate
HackerRank

Python (Basic)

Skill Certificate

Verified certificate
Verify
Education

Academic Foundation.

Formal computer systems training paired with a decade of production software delivery.

Instituto Politecnico Nacional campus
2010 - 2015

Instituto Politecnico Nacional

Bachelor's Degree

Networking of Computer Systems

Contact

Let's build an AI-powered product that feels exceptional.

Available for senior engineering, AI product architecture, full stack delivery, and enterprise platform initiatives.

Emailmern2025@outlook.comTelegram@yesteruWhatsApp+1 (856) 495-1739LinkedInHector Rosales OrtizCountryMexico