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Esteban Misas

@estebanmisas

Backend software developer at Coopetraban building REST APIs, core-banking modules, and debit and credit card processing.

Colombia

Message

At Coopetraban, I design and build REST APIs and transactional processes for core financial operations. I also implement card processing and maintain core-banking modules and the members' virtual branch.

For FONDOSUMA, FEDIN, and FONDELCO, I delivered account-statement and member self-service applications, and built LLM-powered WhatsApp bots for customer service and query automation.

On my independent project SGF Web, I designed and built a multi-tenant SaaS core-financial platform that modernized a legacy VB6 system with Angular and .NET. Its modules cover member onboarding, savings and teller operations, credit origination, account statements, and self-service.

Experience

Work history, roles, and key accomplishments

Current

Senior Developer / Analyst

Current

Coopetraban

Oct 2022 - Present (4 years 1 month)

Design and build REST APIs and transactional processes powering the cooperative's core financial operations. Implemented and integrated debit and credit card processing, and developed core-banking modules and the members' virtual branch.

C#.NET Java PHP Laravel C++SQL REST APIs SQL Server PostgreSQL Core Banking Card Processing Virtual Branch

Current

Backend / Full-Stack Developer

Current

FONDOSUMA, FEDIN, FONDELCO

Jan 2022 - Present (4 years 10 months)

Delivered account-statement and member self-service applications for financial entities. Built AI-powered WhatsApp bots for customer service and query automation, and developed administrative and payroll modules with secure data migrations.

Angular .NET LLM AI Agents WhatsApp Bot SQL Data Migration Payroll Systems

Junior Developer & Support

Algar Tech

Mar 2020 - Oct 2022 (2 years 7 months)

Developed and maintained e-commerce applications. Provided technical support, incident handling, and SQL database operations.

Ecommerce SQL Technical Support Incident Management

Full-Stack Developer

Independent Project

Designed and built a multi-tenant SaaS core-financial platform, modernizing a legacy VB6 system to an Angular + .NET architecture. Delivered modules including member onboarding, savings/teller operations, credit origination, and self-service virtual office.

Angular .NET SaaS Multi Tenant Environments Financial Platforms VB6 Migration SMS OTP Mass Communications