Jean Espinoza
Photo of Jean Espinoza

Software Engineer · Integrations

I design andbuild softwarethat solvesreal-worldproblems.

Over 3 years of experience building with Python, Django, React, Next.js, Java, and AWS. I turn ideas and complex challenges into scalable technology solutions that deliver value.

Experience

  1. Full-Stack Developer

    Current · Sep 2026 — present

    Olimpo Bet

    • Designed the software architecture for the Casino Battles product, defining domain boundaries, service interactions, and event-driven communication flows to build a scalable and maintainable gaming competition platform.
    ReactNext.jsDjangoJAVAAWS
  2. Salesforce Developer

    Nov 2025 — Oct 2026

    NTT DATA

    • Designed the Salesforce ↔ SharePoint integration with LWC and Apex: architecture, data flow and design patterns.
    • Built REST and SOAP services for secure data exchange with external systems.
    ApexLWCRESTSOAP
  3. Full-Stack Developer

    Jul 2025 — Feb 2026

    Olimpo Bet

    • Optimized frontend components in React and Next.js.
    • Implemented Next.js middleware to secure data handling.
    • Built the user-roles system in the Django backend.
    ReactNext.jsDjangoAWS
  4. IT Developer

    Mar 2024 — Jun 2025

    WIN Empresas

    • Automated CRM notifications and document delivery to Sales Specialists, BDMs and managers.
    • Cut document review times and increased the number of requests handled.
    CRMAutomationODOOLinux
  5. Back-office Assistant

    Jan 2023 — Mar 2024

    Migraciones

    • Automated file deployment across the network: from 2 days to half a day.
    • Built an access-request generator integrated with digital signature.
    AutomationDigital signature

Projects

ShortLink

Link shortener with real-time visit tracking. React frontend and a custom REST API.

React · Node.js · Express · PostgreSQL

PhraseForge

English practice app: generates phrases with the OpenAI API and keeps your history. Flask API with JWT authentication.

React · Python · Flask · PostgreSQL · OpenAI

Certifications

2026

Software Architecture

TECSUP

POOSOLID

Skills

Software Architecture

TECSUP

  • POO
  • SOLID
  • Design Patterns
  • Clean Architecture
  • Microservices
2024

Web Development with Java

TECSUP

JavaPostgreSQL

Skills

Web Development with Java

TECSUP

  • Java
  • PostgreSQL
  • JavaScript
  • Spring Boot
  • Spring Security
  • React
2023

Databases

TECSUP

PostgreSQLSQL

Skills

Databases

TECSUP

  • PostgreSQL
  • SQL
  • MySQL
  • SQL Server
2023

Full-Stack Web Development

TECSUP

PythonPostgreSQL

Skills

Full-Stack Web Development

TECSUP

  • Python
  • PostgreSQL
  • JavaScript
  • Flask
  • React
2022

Mechatronics Engineer

National University of Trujillo

AlgorithmsPOO

Skills

Mechatronics Engineer

National University of Trujillo

  • Algorithms
  • POO
  • Data structures
  • Computational thinking
  • Systems modeling and analysis
  • Problem-solving

Stack

Languages

  • Python
  • Java
  • JavaScript
  • SQL
  • Apex

Backend

  • Django
  • Flask
  • Node.js
  • Express
  • Spring Boot

Frontend

  • React
  • Next.js
  • LWC

Data & cloud

  • PostgreSQL
  • AWS
  • Odoo
  • Salesforce

Let’s talk

I'm open to new opportunities and projects where I can contribute technological solutions and make a real impact.