Carlos Tangarife | Senior Software Engineer & Cloud Architecture Expert

Who I Am

Modernizing Legacy Systems, Accelerating Business Growth

I'm a Senior Software Engineer from Manizales, Colombia, with a proven track record of transforming complex legacy systems into modern, scalable solutions for US-based companies.

My approach combines technical excellence with business understanding, ensuring that solutions are not only functional but sustainable, scalable, and aligned with organizational goals.

My Professional Philosophy

Code as Communication: Writing code that speaks to both machines and humans
Architecture as Business Enabler: Technical decisions driven by business value
Quality as Continuous Process: Not a final step, but an ongoing commitment
AI-Augmented Development: Leveraging AI tools while maintaining human expertise

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Core Expertise

Cloud Architecture (AWS, Azure), Full-Stack Development, DevOps/CI-CD, and Legacy System Modernization

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Innovation Leader

Pioneering AI-assisted development using Cursor and ChatGPT, increasing delivery speed by 40%

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Global Impact

Delivered solutions for US companies serving millions of active users across multiple industries

Measurable Results

Impact & Achievements

Quantifiable improvements that drive business value and technical excellence

70%

AWS Infrastructure Reduction

Reduced 200 AWS Lambda functions to 60 while improving overall performance and reducing costs

AWS Lambda · Serverless · Cost Optimization

96%

Performance Improvement

Optimized database operations from 2 days to 2 hours through strategic query optimization

PostgreSQL · Query Optimization · Indexing

47%

Technical Debt Reduction

Reduced 160 .NET legacy projects to 85 through systematic refactoring and clean architecture

.NET Core · Clean Architecture · SOLID

40%

Delivery Speed Increase

Accelerated development cycles through AI-assisted coding and workflow automation

Cursor · ChatGPT · DevOps Automation

3M+

Users Served

Built and optimized applications serving millions of active users across multiple platforms

React · Angular · Ionic · Scalability

95%+

Code Coverage Achievement

Established CI/CD culture with automated testing achieving exceptional code quality standards

Jest · Cypress · SonarQube · Jenkins

Professional Journey

Experience Timeline

November 2024 - Present

Senior Software Engineer

Sombra · Client: CampMinder (USA)

Leading modernization initiatives for legacy camp management platform serving diverse subscriptions with complex role-based permissions and feature flag configurations.

Reduced 160 legacy .NET projects to 85 (~47% reduction) through systematic refactoring
Architected Communication Hub (CMS platform) for multi-channel messaging via Twilio
Pioneered AI adoption initiative increasing delivery speed by 40%
Built internal package ecosystem with Turborepo enabling code reuse across 10+ applications

React TypeScript Vite Chakra UI .NET 8 Azure DevOps Docker Cursor AI

2022 - 2024

Senior Full Stack Engineer

Avenue Code · Client: Blink Fitness (USA)

Developed mission-critical mobile and web applications for nationwide gym chain serving 3+ million active users, managing memberships, training, and real-time facility tracking.

Reduced 200 AWS Lambda functions to 60 (~70% reduction) while improving performance
Built Crowd Tracker feature for real-time gym occupancy monitoring
Architected dual-CMS platform (WordPress + Contentful) for dynamic content delivery
Implemented comprehensive test automation with 85%+ code coverage

Angular Ionic Node.js AWS Lambda DynamoDB TypeScript Serverless

2019 - 2021

Developer and Architect

CEIBA SOFTWARE · Medellín

Evolved into client-facing technical leader for large-scale enterprise projects. Led front-end architecture standardization, mentored teams on Angular/TypeScript best practices, and established enterprise architectural principles (DI, IoC, SOLID) across the organization.

🔹 PROJECT: VENNDELO (2020-2021)

Web marketplace for product sales and supplier distribution replacing legacy PHP systems.

Mastered Webpack at native level combining legacy AngularJS with Vue.js frontend built entirely with Web Components
Established NestJS backend with Clean Architecture and TypeORM, drastically improving performance and stability
Implemented automated E2E testing with Twine and Gherkin establishing shared understanding between developers, QA, and business
Packaged every UI element as reusable Web Component for seamless legacy system embedding

Webpack Vue.js Web Components NestJS TypeORM PostgreSQL Storybook

🔹 PROJECT: RENTING COLOMBIA (2019-2020)

Leading vehicle leasing provider - unified ecosystem of 15 interconnected Angular applications.

Led standardization effort creating shared Angular library with Material Design centralizing rendering logic and permissions
Improved performance by 80% implementing infinite scrolling, lazy loading, and OnPush change detection for pages with 20,000+ elements
Redesigned cross-application authentication with Azure AD B2C and MSAL providing unified login across all 15 applications
Reduced development time by 50% through shared component library becoming reference architecture within Ceiba

Angular TypeScript .NET Core Azure AD B2C MSAL SignalR Microservices Azure DevOps

2018 - 2019

Developer

XPERTGROUP · Medellín · Client: CFA (Credit Scoring Platform)

Built dynamic credit scoring platform with runtime-configurable variables and formulas. Led DevOps automation initiative establishing CI/CD practices from ground up.

Designed configurable scoring engine allowing stakeholders to define variables and formulas without developer intervention
Proactively promoted Agile and Scrum practices, transforming legacy documentation-driven process into incremental development cycles
Established DevOps automation framework with Jenkins and SonarQube when CI/CD was emerging in organization
Achieved 95%+ code coverage and reduced bug rate by 70% through continuous quality analysis

C# .NET Core Angular TypeScript Jenkins SonarQube EasyChart

2017 - 2018

Advanced Developer

NewShore · Clients: Vueling, Volotea Airlines

Built highly configurable flight booking platforms for European low-cost airlines with dynamic pricing and business rules.

Developed configurable search engine adaptable for multiple airlines
Integrated Umbraco CMS enabling real-time business rule changes without deployments
Established foundation in Clean Architecture and SOLID principles

C# .NET Framework Angular Umbraco CMS

2015 - 2017

SQL Developer & Database Administrator

DataSoft · Government SaaS Platform

Managed databases for Colombian government financial systems. Promoted to DBA within 3 months.

Optimized critical query from 2 days to 2 hours (96% improvement)
Implemented automated backup strategy with Google Drive API integration
Successfully performed full disaster recovery simulation

PostgreSQL PL/SQL Query Optimization PHP

Technical Arsenal

Skills & Technologies

A comprehensive toolkit built over 11+ years of hands-on experience

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Frontend Engineering

React TypeScript Angular Vue Vite Webpack Chakra UI Ionic SASS/SCSS Storybook Web Components

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Backend Engineering

Node.js C# .NET Core NestJS Express Clean Architecture SOLID Microservices CQRS SignalR

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Cloud & Infrastructure

AWS Lambda API Gateway DynamoDB S3 CloudFront Azure DevOps Azure App Service Cognito CloudWatch SNS/SQS

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Database & Data

PostgreSQL SQL Server MongoDB Oracle TypeORM Query Optimization Indexing PL/SQL

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Testing & Quality

Vitest Cypress Playwright Jest SpecFlow SonarQube BDD/TDD E2E Testing

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DevOps & Tools

Docker CI/CD Pipelines Azure DevOps GitHub Actions Jenkins Serverless Framework Git Jira

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AI-Assisted Development

Cursor ChatGPT Automated Workflows Prompt Engineering Gherkin Language

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Methodologies

Agile/Scrum Clean Code DDD Design Patterns Code Review Pair Programming Feature Flags

Senior Software Engineer Transforming Legacy Systems into Modern Solutions