Software Engineer Web Developer

Roberto Andres Sanchez Sampayo

Hometown: Winder, GA, EEUU

Phones: +1-305-***-****

E-mail: ****************@*****.***

GitHub: github.com/robertosampayo

LinkedIn: https://www.linkedin.com/in/roberto-sanchez-b71348a2/ Information technologies skills

Software Development

Databases

DataBases MySQL (3 years of experience): Intermediate. DataBases PostgreSQL (1 year of experience): Basic. Agil Software Development

Experience in team projects: Intermediate.

Git & GitHub (5 year of experience): Intermediate. Experience in Freelance projects (5 year of experience): Intermediate. Academic Formation

College University: URBE University

Degree: Informatics Engineer

Website: urbeuniversity.edu

Reactjs (5 years of experience).

Nodejs/Express (4 years of experience).

Typescript (3 years of experience).

Javascript (6 years of experience).

Graphql (1 year of experience).

Nextjs/Reactjs (4 years of experience).

UI/JS development (3 years of experience).

UX development (3 years of experience).

GSAP Animations (2 years of experience).

Cordova/Android (1 year of experience).

Testing Library/Jest (3 years of experience).

Employment

Frontend Developer at Caesars Sportsbook (2022-2024) Technologies: React.js, SASS, Node, Express, TypeScript, Cordova/Android Rol description:

● Conceptualized and designed an intuitive user interface for the New Sportsbook app.

● Implemented robust security measures for user data protection.

● Prioritized scalability to handle a large user base and diverse betting options.

● Managed and optimized existing legacy systems.

● Gradually modernized systems to meet evolving business needs.

● Designed flexible and well-documented APIs for internal and external use.

● Collaborated with different teams to address diverse integration needs.

● Ensured high service availability and minimal downtime during integration. Frontend Developer Freelance (2022)

Technologies: React.js, SASS, Node, Express, TypeScript Rol description:

● Implemented new modules in applications.

● Created new projects from scratch.

● Updated, maintained, and refactored legacy applications to improve scalability.

● Led the product until launch in production.

Senior Frontend Developer at Mercadolibre / Shipping (2021-2022) Technologies: React.js, SASS, Node, Express, TypeScript Rol description:

● Developed client-side features for an internal backoffice that improved warehouse productivity.

● Improved legacy code and application performance.

● Reduced bundle size with Webpack.

● Implemented new APIs and redesigned data presentation.

● Participated in technical discussions and task estimations.

● Reviewed metrics for application stability and health.

● Delegated tasks to junior developers and promoted best practices. Senior JavaScript Developer at Ego Agency / Supervielle Bank (2020-2021) Technologies: React.js, Next.js, styled-components, Node, Express Rol description:

● Developed client-side features for an internal backoffice used for new client rollouts.

● Improved legacy code and performance.

● Implemented new APIs and data presentation.

● Maintained web application parity with mobile app features.

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