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Julio González
From Ecuador 10:07 AM (GMT-05:00)
$41/hr or $85,000/yr
Active 2 hours ago

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Senior Full-Stack Engineer

Full-Stack Engineer
Available for hire
Years of experience
7+ years
Experience level
Staff
Available for
Full-time, Part-time, Contract
Available from
11 Oct 2026

Senior Fullstack Engineer with 7+ years of experience building production systems in TypeScript, Node.js (NestJS), React/Next.js, PostgreSQL, MongoDB and AWS. Currently at Globant, embedded with a US edtech client, and previously at Galileo Financial Technologies (fintech), where I worked on secure, high-reliability platforms including OAuth 2.0 flows and real-time event-driven architectures (WebSockets, Kafka).

Over the past year I've focused on AI-native engineering: building LLM-powered and multi-agent applications with Python (FastAPI, LangGraph) and using AI-assisted, spec-driven workflows in day-to-day development. I also hold an ISO 27001:2022 Internal Auditor certification, so I bring a strong security and compliance mindset to the products I build.

I'm looking for a remote Senior Fullstack or AI Engineer role (contract or full-time, USD) with a US or global team, ideally on products that put AI into production. Based in Ecuador (UTC-5), with full overlap with US time zones.

Skills

JavaScript TypeScript React.js Next.js NestJS Express.js GraphQL AWS Zod Lambda Supabase Socket.io MERN stack MongoDB PostgreSQL TypeORM SQS Agile FastAPI Apache Kafka

Languages

English Spanish

Employment History

Senior Software Engineer at Globant Current 2024 - Now
• Designed and built a real-time market data fan-out service using Kafka topics and WebSockets, delivering low-latency streaming updates to concurrent clients. • Implemented authentication and authorization layers using Express.js and Nest.js, including full OAuth 2.0 flows, JWT-based session handling, and role-based access control, protecting APIs against OWASP Top 10 vulnerabilities. • Develop scalable backend services and web applications using Node.js and React with TypeScript, applying clean architecture principles, design patterns, and industry best practices. • Built features powered by LLM APIs, improving response quality through prompt engineering and enabling real-time tool integrations. • Work daily with AI-assisted development tools (Cursor, Claude Code) using refined workflows for code generation, review, and debugging within large existing codebases. • Design and manage relational and NoSQL databases, ensuring performance, scalability, and efficient data access patterns. • Develop comprehensive automated tests including unit, integration, and end-to-end tests using Jest, Sinon.js for mocking, and Cypress for test automation.
Software Engineer at Galileo Financial Technologies 2022 - 2024
• Built and maintained backend services in Node.js and Express.js for a regulated financial services platform, where correctness and auditability of every transaction took precedence over delivery speed. • Diagnosed and resolved production incidents in financial systems, working within established compliance and change-management processes to restore service without compromising data integrity. • Owned application deployments across multiple AWS environments, coordinating release sequencing and rollback readiness for services handling financial data. • Containerized backend services using Docker to improve modularity, portability, and environment parity between development and production. • Developed and maintained frontend applications in Angular, delivering interfaces for internal operations workflows. • Contributed across the full software development lifecycle, from planning and development to deployment and maintenance, for services consumed by financial institutions and card programs.
Full-stack developer at Initgrammers 2019 - 2022
• Designed and implemented scalable backend architectures and APIs based on business requirements using Node.js, Express.js, GraphQL, and TypeScript. • Maintained and optimized cloud-native applications on AWS using serverless architecture with SST, implementing Lambda functions, event-driven workflows, and API Gateway integrations to ensure scalability and high availability. • Developed scalable applications using Firebase and Google Cloud Platform, implementing real-time databases, cloud storage, and secure user authentication while leveraging Firebase Functions for event-driven processing. • Led application support at the code level, implementing automated testing with Jest and integrating backend APIs with React applications using server-side rendering (SSR) with Next.js.

Education

Master´s degree in Software Engineering and Informatics Systems at UNIR 2022 - 2024
Information Network Engineering Degree at Escuela Politecnica Nacional 2012 - 2019
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