Software Engineer

Diego Steven Gallegos Carvajal

Temenos T24 integration, backend development, full stack applications, and quality engineering.

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Profile

Software engineer with experience across core banking, backend and full stack development, retail systems, QA automation, and production support. I build Java and Python services and APIs, work with Temenos Transact (T24), and develop web applications with Spring Boot, Django, Angular, and Vue.js.

Professional experience

Software Engineer · NTT DATA

Current role

Technical expert in Temenos Transact (T24), Temenos Data Hub (TDH), and Workbench for banking projects in Mexico, Peru, Panama, Spain, and other countries.

  • Design integration architecture and develop T24 routines and interfaces for core banking systems.
  • Support cloud deployments, technical integration, and troubleshooting across banking environments.

Software Engineer · Nagarro

Previous role

Worked on Temenos T24 and Temenos Data Hub integrations for G&T Continental and BCI.

  • Developed Java and Python backend components, core banking routines, and integration APIs.
  • Supported TDH data synchronization using Outbox and Data Event Streaming approaches.
  • Performed testing, deployment support, incident analysis, and production stabilization.

Functional Software Analyst and QA · NuoCorp

Nov 2021 – Nov 2022

Gathered requirements, developed test cases, automated testing, and supported retail and e-commerce applications.

Selected projects

Consubanco / ION · SPEI banking integration

Temenos Transact (T24), SPEI, banking transactions

Worked on Temenos Transact integrations supporting Mexican banking operations and SPEI transaction flows.

G&T Continental · Core banking integration

Temenos T24, TDH, Java, Python, SQL Server, Azure

Developed backend services and APIs, supported TDH synchronization, validated SQL Server data, and helped stabilize production services.

BCI · Core banking integration

Temenos T24, TDH, DES, Java, Python, Kubernetes

Developed banking integration services and supported data event streaming, technical validation, deployment, and troubleshooting.

Hitell · QA automation

Selenium, Cucumber, Gherkin, Postman, JMeter

Designed and executed manual and automated tests, documented defects, and worked with developers to improve quality.

Retail and e-commerce systems · NuoCorp

Angular, PHP, PostgreSQL, TCx Sky

Contributed to supermarket system migration, an e-commerce platform, a point-of-sale suite, and warehouse management software.

Public procurement BPM and electronic signature · F.A.E.

Spring Boot, Vue.js, PostgreSQL

Designed and developed a web application to automate procurement workflows, including an electronic signature module.

JungleGym · Inventory and customer management

Django, PostgreSQL, JavaScript

Built a web application for inventory and customer control with fingerprint-based identification.

Poultry management system · Mr. Lomas

C# ASP.NET, SQL Server

Developed a system for poultry control, inspection, and quality assurance.