Open to opportunities

Esteban Alberto Huenteleo Subiabre

@estebanalbertohuente

Full Stack Developer at Cygnus building Trazo, an e-signature platform taken from product definition to pilot-ready release.

Chile

Message

What I'm looking for

I'm open to remote work and relocation.

At Cygnus, I took Trazo from product definition to a pilot-ready release as its sole developer. I own the e-signature platform end to end, using Angular, .NET, and SQL Server.

At Cygnus, I was also a core team member of KLOC, an attendance-tracking SaaS authorized by Chile's Labor Directorate and used by 5,000+ people. I built its public API single-handedly in one month and contributed to its backend foundations and core features.

At Conavicoop, I took part in migrating a legacy platform with 30+ modules and approximately 10,000 users to .NET Core. I also optimized SQL Server stored procedures, reducing execution times from up to 30 seconds to about one second.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer (AI)

Current

Cygnus

Oct 2026 - Present (0 months)

End-to-end owner of Trazo, an e-signature platform, from product definition to pilot-ready release in 2 months. Applied agentic AI development, orchestrated multiple agents, and built a reusable application template.

Angular TypeScript C#.NET 10 Entity Framework Core SQL Server Docker CI CD Claude Code Codex MCP Storybook Git

Backend Developer

Cygnus

Nov 2024 - Oct 2026 (1 year 11 months)

Developed KLOC, a geolocated attendance-tracking SaaS with 5,000+ users, building backend foundations and system core. Single-handedly built the public API in 1 month using AI-assisted development.

C#.NET 8+.NET Core Web API Dapper LINQ SQL Server T SQL Stored Procedures Scalar OpenAPI Bruno HTML CSS Git Agile

Full Stack Developer

Conavicoop

Apr 2023 - Sep 2024 (1 year 5 months)

Participated in migrating a legacy platform of 30+ modules from PHP to .NET Core, optimizing SQL Server stored procedures and building interfaces with Razor and JavaScript.

C#.NET Core ASP.NET Core MVC Entity Framework Core LINQ Razor SQL Server T SQL JavaScript jQuery AJAX Bootstrap HTML5 CSS Git PHP

Junior Full Stack Developer

Puente Sur GTR

Jan 2022 - Sep 2022 (8 months)

Migrated employee records to BUK HR platform via REST API and developed features for corporate intranet. Built frontend views and backend endpoints for a PWA for shoppers.