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Daniel Fe

@danielfe

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I build and modernize full-stack SaaS platforms with Ruby on Rails, Node.js, microservices, and AI workflows.

Argentina

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What I'm looking for

I'm looking to build and modernize production SaaS systems across the full stack, especially with Ruby on Rails, Node.js, microservices, and thoughtful AI-assisted development practices. I value collaborative teams, strong specifications, and opportunities to mentor engineers.

At GlobalLogic, I work on a SaaS platform’s legacy Ruby on Rails core and BFF microservices, covering full-stack development, monitoring, data migrations, infrastructure changes, and developer-experience improvements.

I use Claude and Codex daily for implementation planning, code review, and edge-case discovery. By adopting detailed, spec-driven development practices, my team improved delivery performance and consistency in production systems.

Previously at WeDevelop, I helped Compass—an NY-based Fortune 500 real estate brokerage supporting 25,000+ agents—decompose a Rails monolith into Ruby on Rails and Go microservices while contributing to existing Java services. I also performed end-to-end integration testing and mentored engineers across distributed, multi-country teams.

Across more than 10 years, I’ve delivered Rails APIs, React Native projects, e-commerce features, infrastructure deployments, and web platforms in sectors ranging from real estate and expense management to cannabis production tracking. I keep learning, particularly where AI tooling can responsibly improve engineering workflows.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

GlobalLogic

Jul 2025 - Present (1 year 2 months)

Working on a SaaS platform's legacy Ruby on Rails core, BFF microservices, monitoring, data migrations, infrastructure changes, and developer-experience improvements. Using AI tools daily to draft implementation plans, review code, and surface edge cases, with a shift to spec-driven development that improved delivery performance.