DT

Open to opportunities

Diego Tafur

@diegotafur

I build and modernize production web applications across React, Node.js, .NET, and SQL.

What I'm looking for

I'm looking to build and modernize production web applications, improve legacy systems through phased delivery, and collaborate closely through code reviews, testing, CI/CD, and stable releases.

I've delivered and modernized production web platforms at Eastwall, Branex, PAQT, and Zenotec, building across React, Node.js, .NET, C#, and SQL-based backends.

At Eastwall, I led React and Node.js delivery for a production platform, shipped 8 major features through modular releases, and reduced regression fixes by 34% through unit and integration coverage for critical user journeys. I also designed service-layer and data-access components, modernized legacy screens and APIs incrementally, and supported production validation before rollout.

At Branex, I supported 14 release cycles across product modules, built REST APIs and backend services for workflow updates, data synchronization, and third-party integrations, and improved SQL Server access patterns to reduce slow-running transactions by 27%.

Throughout my work, I keep legacy systems stable while introducing new components in phases. I document technical decisions, review code across frontend and backend workstreams, and use CI/CD, testing, and production troubleshooting to make releases predictable.

Experience

Work history, roles, and key accomplishments

EA

Senior Full-Stack Engineer

Eastwall

Aug 2025 - Jun 2026 (10 months)

Led React and Node.js delivery for a production platform, shipping 8 major features through modular releases and coordinated QA sign-off. Designed service-layer and data-access components that simplified backend flows and reduced duplicate logic across core workflows.

React Node TypeScript JavaScript SQL REST APIs CI CD Git Unit Testing Integration Testing Debugging AI Coding Assistants

BR

Full-Stack Developer

Branex

Mar 2020 - Aug 2025 (5 years 5 months)

Built and maintained customer-facing features in a mixed React and .NET environment, supporting 14 release cycles across product modules. Developed REST APIs and backend services that handled workflow updates, data sync, and third-party integration calls.

React .NET C#SQL Server REST APIs CI CD Git Unit Testing Integration Testing Debugging Documentation

PA

Full-Stack Developer

PAQT

Mar 2016 - Mar 2020 (4 years)

Delivered full-stack enhancements for internal and client-facing applications, including UI updates, API changes, and database work. Created reusable service modules and database procedures that reduced duplicated implementation across several features.

.NET C#SQL REST APIs Git Unit Testing Debugging Database Optimization

ZE

Full-Stack Developer

Zenotec

Sep 2012 - Mar 2016 (3 years 6 months)

Developed web application features across frontend, backend, and SQL layers for business systems with long-lived production support. Maintained ASP.NET and relational database codebases while extending functionality for new operational needs.

ASP.NET C#SQL REST APIs Git Debugging Documentation

Education

Degrees, certifications, and relevant coursework

UN

University of Northampton

Bachelor of Science, Computer Science

2007 - 2012

Bachelor in Computer Science degree from the University of Northampton from 2007 to 2012.

Tech stack

Software and tools used professionally

Node.js

.NET

Web Components

JavaScript

ASP.NET

SQL

Availability

Open to opportunities

Location

Colombia

Authorized to work in

Job categories

Full Stack Engineer Frontend Engineer Backend Engineer Software Engineer Web Developer Full Stack Engineering Full Stack Developer Full Stack Software Engineering Full Stack Software Developer

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