Open to opportunities

Nicolas Selicki

@nicolasselicki

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Semi-Senior Full Stack Developer with banking application experience.

Argentina

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What I'm looking for

I seek a full-stack or backend role in a collaborative, agile team working on scalable, secure web or banking applications with growth opportunities.

I am a Semi-Senior Full Stack Developer with over three years of experience building web and mobile banking applications for major financial institutions. I bring critical thinking, rapid learning, and autonomy to every project.

I have contributed to highly scalable home-banking systems, creating complex reusable frontend components and optimizing application performance using JavaScript, React, LitElement, and web best practices. My frontend work emphasized fluidity and rapid response for large user bases.

On the backend I design and maintain services and APIs using Java Spring Boot, Node.js, Express and TypeScript, and I work with MySQL, Sequelize and Firestore to ensure efficient, secure, and scalable data handling. I have implemented authentication and authorization mechanisms, including JWT-based approaches.

I collaborate within Agile Scrum teams, using Git, Jira, Confluence and Slack, and I continually expand my skills through intensive bootcamps and formal diplomas in Full Stack and Java/React technologies.

Experience

Work history, roles, and key accomplishments

Fullstack Developer

FactorIT

Aug 2024 - Aug 2025 (1 year)

Designed and maintained scalable, secure banking applications using Java Spring Boot for backends and React/LitElement for interactive frontends, improving integrations and user experience.

Java Spring Boot React LitElement JavaScript MySQL API Design Backend Integrations

Backend Developer

Kiura

Mar 2024 - Aug 2024 (5 months)

Designed and maintained server-side logic and databases, built RESTful APIs with Node.js/Express and Sequelize, and implemented authentication/authorization to ensure scalable, secure performance.

Node Express TypeScript Sequelize MySQL RESTful APIs API Design

Frontend Developer

GlobalLogic

Jun 2021 - Nov 2022 (1 year 5 months)

Contributed to a highly scalable Home Banking system for Banco Credicoop, building complex reusable frontend components that improved application fluidity and response times for all bank customers.

JavaScript React Component Design Git MySQL Agile Scrum

Education

Degrees, certifications, and relevant coursework

HEDY Bootcamp

Certificate, Full Stack Development

2024 - 2024

Completed the Full Stack Developer NextJS bootcamp focused on Next.js and modern full stack development.

Universidad Tecnológica Nacional - Buenos Aires (UTN Buenos Aires)

Diploma, Full Stack Web Development

2023 - 2024

Completed a Full Stack Web Development Diploma program at UTN Buenos Aires from November 2023 to December 2024 focusing on full stack technologies and software development practices.