Open to opportunities

Starlyn Fernández Marte

@starlynfernndezmarte

I am Senior Systems Engineer with over 5 years of experience developing, implementing applications in React, js , ts and python

Dominican Republic

Message

What I'm looking for

I’m looking for a role building secure, scalable enterprise apps where I can own React/Node architecture, integrate Azure SSO/RBAC, and improve performance with strong DevOps practices—so users get reliable, high-quality experiences.

Senior Systems Engineer with over 5 years of experience developing, implementing, and supporting high-quality enterprise applications in high-security environments. Expert in the JavaScript/TypeScript ecosystem (React/Node.js) with professional experience applying Python for backend logic and process automation. Proven track record of architecting scalable frontend solutions and ensuring technical standards through clean, testable code and DevOps best practices, including Docker and CI/CD. Strong focus on system integration and user satisfaction. Technical English proficiency (Advanced)

Experience

Work history, roles, and key accomplishments

Current

Web Developer

Current

WEPSYS

Dec 2024 - Present (1 year 6 months)

Designed and implemented high-quality, responsive React interfaces to streamline complex enterprise workflows. Maintained clean, testable, and reliable codebases by adhering to internal standards and best practices.

React Responsive Web Design TypeScript Coding Standards

Current

Software Developer

Current

Worldwide Seguros

May 2024 - Present (2 years 1 month)

Designed and implemented modular enterprise architecture for claims, treasury, and subscription portals using React 18 and TypeScript. Integrated Azure MSAL for enterprise SSO and optimized server-state performance with TanStack Query.

React 18+TypeScript SSO Tanstack Query Enterprise Architecture

Software Engineer

Concentra

Nov 2021 - Apr 2024 (2 years 5 months)

Optimized React applications for enterprise clients, improving page load speeds and state management efficiency. Architected scalable UI components with Redux and React Context and delivered cross-platform interfaces with 100% responsiveness across desktop and mobile.

React Redux UI Components Responsive Design State Management

Technical Support & Developer

Tecnocom (Indra)

Jul 2018 - Nov 2021 (3 years 4 months)

Modernized legacy user interfaces into React components, improving accessibility and task completion rates. Delivered full-stack enterprise solutions including an ERP insurance workflow and secure portals using Python, Node.js/Prisma, Azure MSAL (RBAC), AWS S3, and OWASP-aligned security, including 99.9% uptime monitoring with Sentry and Pino.

React Python RBAC Prisma AWS S3 Sentry & Pino Logging

Education

Degrees, certifications, and relevant coursework

UNICARIBE University

Bachelor's degree, Systems Engineering

Activities and societies: Courses: C# (Auxiliar Programador de Computadoras), React, Angular, JavaScript (ES6+), Python (all referenced as Udemy courses).

Completed a bachelor’s degree in Systems Engineering at UNICARIBE University. Coursework included C#, React, Angular, JavaScript (ES6+), and Python.