Senior Software Engineer
Software Engineer
Available for hire
Years of
experience
9+ years
Experience
level
Senior
Available
for
Full-time, Part-time, Contract, Freelance
Available from
22 Sep 2026
I'm a senior software engineer with over 8 years of experience specializing in backend architecture, API design, and event-driven systems. My story is built on solving complex integration challenges—building robust microservices with Node.js, TypeScript, and Redis that handle high-volume data processing while maintaining absolute data integrity.
What makes me unique is my combination of deep technical expertise and strategic career focus. I don't just write code; I architect solutions that scale, secure APIs with JWT and API-key authentication, and debug production issues systematically. I've worked as a consultant delivering enterprise-grade solutions for major retail clients, managing multiple roles simultaneously while maintaining code quality.
I'm currently looking for a remote Software Engineer role focused on integrations, ETL pipelines, and API development—ideally in fintech, payroll, or benefits where complex external record-keeper integrations matter. I want to join a team where I can leverage my Node.js/TypeScript expertise, AWS deployment experience, and production troubleshooting skills while continuing to grow as a software architect. Full professional English proficiency, Argentina (GMT-3) availability, and 100% remote work alignment make me a strong fit for global teams.
Skills
JavaScript
CSS
TypeScript
Solidity
React.js
Next.js
NestJS
Vue.js
Node.js
Express.js
Tailwind CSS
SQL
Redis
Kafka
Elasticsearch
Web sockets
GraphQL
Cypress.js
Docker
AWS
Vercel
Blockchain
GitLab
Redux.js
Zod
Software as a Service
Web components
NoSQL
REST
Lambda
JIRA
Kubernetes
Web3
Microservices
Supabase
jQuery
Swagger
JSON
Jest
npm
Vite.js
Mongoose
React Query
JWT
Socket.io
Vitest
Puppeteer
Zustand
NextAuth
SCSS
Material UI
PostCSS
Mobile-first design
BEM
MERN stack
MongoDB
PostgreSQL
MySQL
Dynamodb
SQLite
TypeORM
RabbitMQ
SQS
Cloudflare
Git
GitHub
Prisma
CI/CD
MVC
Test Driven Development
Web accessibility
Styled components
Web services
ChatGPT
Webhook
Serverless
OAuth
E-commerce
Domain Driven Development
Server Side Rendering
Server Side Generation
Infrastructure as a Service
Smart Contract
Crypto
Large Language Models
HTML
Rust
MS SQL Server
MariaDB
Cloudwatch
Message queues
Cargo
pnpm
Employment History
SENIOR FULLSTACK ENGINEER at
Xebia
Current
2025
-
Now
- Build and evolve features for Levi's e-commerce platform across a React / Next.js / TypeScript frontend and a Node / GraphQL backend, from Figma handoff through production
release.
- Develop and maintain reusable React components as part of the platform's design system, keeping visual and behavioral consistency across the storefront and reducing duplicated UI code.
- Implement pixel-perfect, responsive interfaces validated across desktop, tablet and mobile breakpoints, working directly with Design to resolve spec gaps and edge cases.
Manage complex client-side state and server-data caching with GraphQL / Relay, cutting redundant network requests and simplifying data flow between components.
- Apply accessibility criteria — semantic HTML, ARIA attributes, keyboard navigation and color contrast — during feature development and code reviews.
- Resolved frontend visual defects and GraphQL performance bottlenecks, reducing average response times in the affected endpoints by an estimated 15–20% and improving overall UX.
- Designed a Kafka integration in AWS Lambda functions for asynchronous event handling, instrumented with structured logging and CloudWatch metrics and alarms to surface failures early and reduce manual intervention during incidents.
- Refactored PostgreSQL schemas by adding and migrating attributes between tables and updating seed data, improving data consistency and simplifying future schema evolution.
- Expanded automated coverage with Cypress and unit/integration tests, and identified refactor opportunities to reduce technical debt in legacy components and GraphQL resolvers.
- Review pull requests and take part in refinement and planning, contributing to higher code quality and clearer technical decisions within the team.
Software Engineer at
Qubika
2025
-
2026
OnePay (Backend engineer)
- Designed and implemented new NestJS microservices from scratch, including REST endpoints and automated tests, with clear contracts documented in Swagger and reliable behavior validated through WireMock-based integrations.
- Implemented resilient integration patterns: centralized exception handling with NestJS filters, request validation through DTOs, timeouts, retries with backoff and fallback responses for unstable third-party services.
- Instrumented services with structured logging and correlation IDs, making failures traceable across microservices and shortening incident investigation.
- Consolidated multiple endpoints into fewer aggregated APIs to support evolving mobile app requirements, reducing network calls and simplifying client integration.
- Improved backend responsiveness under concurrent load by leveraging async/await and Promise-based patterns.
- Contributed to infrastructure-as-code deployments with Terraform and AWS services, keeping environments consistent and reducing manual configuration drift.
Powered AI (AI & Workflow Automation)
- Built an onboarding automation workflow using n8n, Google Sheets, Apps Script and Gmail that handles roughly 70–75% of the process, saving the team 2–3 hours per cycle.
- Developed an interview transcript automation where recorded tech interviews are processed and used to auto-populate standardized report templates, reducing documentation time
and improving consistency.
- Integrated multiple Google Workspace tools and internal services into event-driven flows, decreasing repetitive manual tasks.
React and Node Developer at
Distillery
2022
-
2025
- Optimized application functionality and data processing, improving performance by 30% and 40% respectively through efficient coding and asynchronous Realm cloud functions in
MongoDB.
- Reduced deployment time by 25% by building scalable, reusable code in a Serverless SAM architecture with Node.js / TypeScript and optimizing CI/CD pipelines with parallel testing and caching.
- Built and documented reusable React components and shared utilities, improving UI consistency across features and speeding up delivery of new screens.
- Mentored engineers on coding practices and communication, and produced project documentation that gave stakeholders and product owners clearer visibility over scope and progress.
Fullstack Developer at
FPay
2021
-
2022
- Accelerated development speed by 30% and reduced bugs by 20% by writing reusable and scalable Node.js code.
- Designed features with scalability and cost in mind, lowering development effort for subsequent iterations and improving the end-user experience.
- Identified roadblocks early during planning and refinement and proposed solutions, helping keep project timelines on track.
Fullstack Developer at
SoulIT Solutions
2018
-
2021
- Built a scalable REST API using Slim (PHP) and NestJS (Node.js), reducing development time by 30%.
- Developed a responsive web application with React.js, leading to a 25% increase in user engagement.
- Integrated and optimized MySQL databases, improving data retrieval efficiency by 50% through indexing enhancements.
- Created thorough development documentation, cutting onboarding time for new team members.
Web Programmer at
Union Personal
2017
-
2018
- Enhanced the frontend user experience using JavaScript and jQuery, while building a robust backend with PHP and MySQL.
- Developed reusable, modular components that shortened delivery time for new features.
- Automated repetitive tasks with Bash scripts and played an active role in Agile Scrum sprint planning and execution.
Education
Informatic Engineer at
Universidad Nacional de La Matanza
2012
-
2021