Experience5+ Years
BaseMexico, CDMX

Jesus

Frontend Developer / Software Engineer

Montiel

CommunicationEspañol (Native)English (Advanced)
SystemScroll to Explore ↓

About Me

// IDENTITY & JOURNEY

IamaFrontendDeveloperwithover5yearsofexperiencespecializinginbuildinghigh-performancewebecosystems.Recently,atSegulaTechnologies,Iengineeredacomprehensiveuseradministrationsystem—includingsecurelogin,work-hourtracking,andeventcalendars—usingReact,Next.js,TypeScript,Redux,andTailwindCSS.

Mycareerismarkedbyadualfocus:achievingtechnicalexcellenceinglobalcompanieslikeWalmartandHCL(GoogleMaps),anddeliveringelitewebperformance,consistentlyhitting98-99%Lighthousescores.

Beyondthefrontend,Ibringawell-roundedFull-StackperspectivewithexperienceinPython,AWS,andPostgreSQLtoensureseamlessdataintegrationandsecurearchitectures.AsaGoogleCloudCertifiedprofessionalwithB2Englishproficiency,Ithriveininternationalteams,combiningproactiveproblem-solvingwithacommitmenttoclean,scalablecodeandrigoroustesting.

Tech Stack

// ARSENAL

Frameworks // Primary

Next.js

Frameworks

React

Frameworks

Astro

Languages

JavaScript

Languages

TypeScript

Design System

Tailwind CSS

Experience

// CAREER TIMELINE

Senior Frontend Developer

Segula Technologies

05/2025 – Present
  • Engineered a comprehensive User Administration System using Next.js, TypeScript, and Redux, managing secure authentication and complex data states.
  • Developed core business modules, including work-hour tracking, vacation management, and interactive event calendars.
  • Built a modern, responsive UI from scratch using Tailwind CSS, ensuring a seamless experience across all devices.
Next.jsTypeScriptReduxTailwind CSS

Senior Frontend Developer

Nativebo

08/2024 – 05/2025
  • Led development and performance optimization of high-conversion landing pages using React, Astro, and LitElement.
  • Achieved elite performance metrics, consistently maintaining Lighthouse scores of 98-99%.
  • Collaborated with international teams, conducting daily technical communication entirely in English.
ReactAstroLitElementPerformance Tuning

Frontend Engineer

Ammper

01/2024 – 07/2024
  • Built financial billing interfaces featuring real-time dashboards via WebSockets and secure JWT authentication.
  • Developed Full-Stack solutions, connecting Next.js/MUI frontends to Python/AWS backends.
  • Ensured system stability through unit testing and clean architecture within the finance domain.
Next.jsMUIPythonAWSWebSockets

Engineer Support

Google Maps (HCL)

01/2023 – 12/2023
  • Provided specialized technical support for Google Maps APIs and Google Cloud Platform (GCP).
  • Managed global client relations and technical ticketing through Salesforce, working fully in English.
Google Maps APIsGCPSalesforce

Senior Frontend Developer

Walmart

04/2022 – 04/2023
  • Led frontend initiatives for internal intranet tools, managing component updates with React and MUI.
  • Guaranteed code quality by implementing comprehensive unit tests using Jest and React Testing Library.
  • Contributed to backend projects using JavaScript and Spring Boot to enhance internal systems.
ReactMUIJestRTLSpring Boot

Frontend Developer

Ubitt

09/2021 – 03/2022
  • Managed the legacy migration of four Single Page Applications (SPAs) from PHP to Next.js.
  • Implemented mobile-first improvements using vanilla JavaScript, HTML, and CSS to enhance UX.
Next.jsPHPJavaScriptHTML/CSS
PRESENT
2021

Let’s Build Something Exceptional

I’m always open to discussing high-performance frontend projects, full-stack opportunities, or technical leadership roles. Whether you have a question about my experience with React/Next.js or just want to say hi, my inbox is always open.

Get in touchDownload CV
Emailjesusalfonsomontiel@gmail.com
LocationMexico City(Remote Worldwide)
Social
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© 2026 Jesus Montiel

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