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Joseph Valencia Cisneros Frontend Engineer

Angular DeveloperTypeScript Specialist

I build scalable, accessible and visually refined web applications — from institutional systems serving tens of thousands of users to interactive experiences.

View projects Experience Contact me
Based in
Mexico · Nayarit / Mexico City / Morelia
Core
Angular · TypeScript · RxJS
CV
Download CV (PDF)

01 Profile

Frontend engineering for systems that can’t afford to fail.

I own frontend development end to end: I set architecture standards and best practices, run code reviews and work closely with backend, QA and stakeholders.

I’ve shipped government and enterprise projects under strict deadlines and with nationwide operational impact.

My approach combines clear communication, analytical problem solving and a constant focus on performance and accessibility (WCAG).

years of professional experience
4+
users on NEN
50,000+
Angular components on NEN
80+
technical English
B1/B2

Education

  1. 2021 – 2023 B.Eng. in Software Development & Management Universidad Tecnológica de Morelia
  2. 2019 – 2021 Associate degree in IT — Multiplatform Software Development Universidad Tecnológica de Morelia

02 Tech stack

An ecosystem, not a wall of logos.

Use the arrow keys to move between technologies, Enter to select and Escape to clear.

Frontend

Backend & integration

Data

DevOps & tooling

Architecture & practice

UX, accessibility & performance

03 Experience

Institutional systems in production.

  1. 2024 – 2026

    Senior Frontend Engineer / Frontend Lead

    Secretaría de Educación Pública (SEP) · Nayarit, Mexico

    Led frontend technical development of the NEN project, defining the site architecture, the modular component structure and the clean-code standards that keep the system scalable.

    • Designed and built complex interfaces and critical data flows, keeping navigation smooth and accessible for institutional users.
    • Hardened the frontend with advanced validation, significantly reducing critical production incidents.
    • Coordinated complex bug resolution with the Java backend team, improving REST API communication and platform performance.
    • Managed test-environment deployments with Docker and collaborative Git/GitFlow workflows.

    Projects in this role

    • Angular
    • TypeScript
    • REST APIs
    • Java
    • Docker
    • Git / GitFlow
    • Component architecture
    • Accessibility (WCAG)

  2. 2023 – 2026

    Frontend Engineer / Full Stack Developer

    Secretaría de Educación Pública (SEP) · Mexico City

    Core team member of the National Registry of Professionals (RNP), implementing a micro-site frontend architecture to serve high nationwide user demand.

    • Led design and development of a centralized institutional platform for leased-property management, digitizing internal operations.
    • Designed and integrated Python/Django backend services with HTML5, CSS3, SCSS and Bootstrap presentation layers.
    • Implemented role-based access control (RBAC), admin CRUD modules and advanced filtering for safe handling of large record sets.

    Projects in this role

    • Angular
    • TypeScript
    • Micro-site architecture
    • Python
    • Django
    • HTML5
    • CSS / SCSS
    • Bootstrap
    • RBAC

  3. 2022 – 2023

    Frontend Developer

    IA Interactive · Morelia, Michoacán, Mexico

    Built reusable React component architectures for dynamic, high-conversion landing pages supporting international film releases across LATAM.

    • Implemented scalable SCSS theming systems, keeping visual consistency across multiple concurrent projects.
    • Applied technical SEO and performance optimization (Core Web Vitals), cutting load times and improving retention.
    • Worked with multicultural design (Figma) and marketing teams to turn complex mockups into high-fidelity interactive code.

    Projects in this role

    • React
    • JavaScript (ES6+)
    • CSS / SCSS
    • Technical SEO
    • Core Web Vitals
    • Responsive design
    • Figma
    • Git / GitFlow

04 Projects

Real work, real users.

Professional work

01

NEN

National Education Payroll

Role
Frontend development lead
Context
SEP · Nayarit · 2024 – 2026

Large-scale institutional payroll and HR system. I defined the frontend architecture, the modular component structure and the project’s quality standards.

users
50,000+
Angular components
80+
  • WCAG-focused accessibility across complex institutional workflows.
  • Advanced validation that reduced critical production incidents.
  • REST API integration with a Java backend and multiple database engines.
Architecture
  1. 01 Institutional users
  2. 02 Angular frontend
  3. 03 REST API
  4. 04 Java backend
  5. 05 Data
  • Angular
  • TypeScript
  • REST APIs
  • Java
  • Oracle
  • PostgreSQL
  • SQL Server
  • Accessibility (WCAG)
  • Docker
  • Git / GitFlow

02

RNP

National Registry of Professionals

View RNP live (opens in a new tab)
Role
Frontend development & leadership
Context
SEP · Mexico City

Nationally critical platform for validating and managing professional records and licenses, serving real users and institutional workflows.

  • Micro-site frontend architecture built for high national demand.
  • PDF generation and CSV exports.
  • Token-based authentication, reCAPTCHA and Google Analytics.
  • Technical coordination of a small development team.
Architecture
  1. 01 Citizens
  2. 02 Angular micro-sites
  3. 03 REST API · token auth

03

SIISEP

Institutional SEP web application

Role
Frontend development
Context
SEP

Institutional application built on an enterprise Angular frontend architecture: forms, data management and institutional workflows with responsive interfaces.

  • Angular
  • TypeScript
  • Component architecture
  • Responsive design

04

SEP Leasing

National leased-property catalog

Role
Full-stack design & development
Context
SEP · Mexico City · internal network

Centralized system for managing the national catalog of leased properties, digitizing internal operational processes.

  • Role-based access control (RBAC).
  • Admin CRUD modules and advanced filtering over large record sets.
Architecture
  1. 01 Administrative staff
  2. 02 Presentation
  3. 03 Django services · RBAC
  • Python
  • Django
  • HTML5
  • CSS / SCSS
  • Bootstrap
  • RBAC

05

Cinematic landing pages

International film releases in LATAM

View Cinematic landing pages live (opens in a new tab)
Role
Frontend developer
Context
IA Interactive · Morelia

Immersive, reusable web components with high visual demands for international theatrical release campaigns.

  • Scalable SCSS theming across concurrent projects.
  • Technical SEO and Core Web Vitals optimization.

Products & own work

02

Kiln Coffee Roasters

Subscription site for a coffee roaster

View Kiln Coffee Roasters live (opens in a new tab)
Role
Frontend development
Context
Live site

Editorial site for a specialty roaster: flexible subscriptions, a weekly catalog, transparent producer pricing and a 3D coffee bean on the landing page.

  • Angular 16 with a Three.js 3D element as the landing centerpiece.

04

ECHOBOUND

Adventure video game · Echoes of the Shattered Isles

Watch trailer — ECHOBOUND (opens in a new tab)
Role
Creator: design, programming and art
Context
Brújula Labs · Windows & macOS

An exploration adventure across floating islands: pixel-art characters in a stylized 3D world, eight Echoes that change the world (wind, stone, light, tide…) to open paths and solve puzzles, five dungeons with their guardians and a story told through places and memories.

  • Component-based Unity architecture with ScriptableObject data and state-driven world objects.
  • Local saves, Spanish/English localization, options menu and full controller support.
  • Custom tooling for automated Play Mode tests, trailer capture and store art.

05

Ikigai

Holistic health ecosystem

Role
Full-stack development
Context
Personal project

Holistic health ecosystem (mental health, nutrition and fitness) powered by multimodal AI assistants and real-time voice control.

  • React Native
  • Django
  • Python
  • Gemini API
  • AssemblyAI

05 Beyond the code

How I work with teams.

  1. 01

    Constructive code reviews

    Clean-code and readability standards through reviews aimed at growing the team.

  2. 02

    Technical leadership

    Mentoring junior and mid-level developers and defining modular frontend architectures.

  3. 03

    Composure under pressure

    Calm, critical decisions in high-visibility environments with strict deadlines.

  4. 04

    Effective communication

    A bridge between technical (backend, QA) and non-technical (functional stakeholder) profiles.

  5. 05

    Analytical thinking

    Breaking complex problems into viable, clean and maintainable solutions.

  6. 06

    Results-driven

    Self-organized with Scrum and Kanban, prioritizing business value and production stability.

06 Contact

Let’s build something solid.

Available for frontend leadership roles, architecture and performance consulting, or key positions on national and international teams.

Based in
Mexico · Nayarit / Mexico City / Morelia
Languages
Native Spanish · Technical English B1/B2

Briefly tell me about your project or role.