Open to opportunities

bel de Leon

@beldeleon

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Software developer specializing in .NET Core and NodeJs, building real-time, scalable, secure applications.

Philippines

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What I'm looking for

I seek a role building backend or full-stack systems using .NET Core and NodeJs, in a collaborative, customer-focused team that values automation, scalability, and continuous improvement.

I am a software developer focused on .NET Core and NodeJs, with experience delivering real-time, scalable, and secure applications for enterprise clients.

I have built API backends, email notification integrations, warehouse and inbound management systems, and traffic monitoring solutions using C#, .NET Core, NodeJs, React, Typescript and SQL databases.

I modernized legacy codebases, implemented RPA and desktop conversion tools, and developed web and desktop utilities that improved automation, reduced operating costs, and streamlined workflows.

I collaborate across the SDLC, use Jira and Git-based workflows, and value building customer-centric software that drives business value and enhances user experience.

Experience

Work history, roles, and key accomplishments

Software Engineer (.NET)

Yondu Inc.

May 2025 - Nov 2025 (6 months)

Developed M-Files email notification API and backend services using .NET Core 8 and C#, automating client claim notifications and integrating SMTP/ZeptoMail to improve notification reliability. Coordinated with Pacific Cross stakeholders and used SQL Server and PowerShell for operational automation.

C++.NET 8+M Files SQL Server PowerShell API Development SMTP Zepto Mail

ReactJS Developer

Systemantech

Feb 2024 - May 2025 (1 year 3 months)

Built full-stack traffic, inbound, and warehouse management applications for S&R using React TypeScript and .NET Core 6, delivering real-time monitoring, role-based access, and reporting to optimize distribution center operations.

React TypeScript .NET Core C++Material UI SQL Server Responsive Design Reporting

Automation Developer

RELX

Jun 2018 - May 2023 (4 years 11 months)

Modernized legacy codebases and developed RPA and desktop tools (PDF-to-eBook converter, PDF comparison) using C#, UiPath and Python, reducing manual processing and improving document workflows for publishing teams.

C++Python RPA Automation PostgreSQL SQL Server

Developer

Philippines Shared Services

Aug 2016 - May 2018 (1 year 9 months)

Automated team trackers and file conversion tools, and developed web and desktop utilities using PHP/Laravel, JQuery, Bootstrap, and various testing frameworks to streamline internal operations.