Gustavo Barca

CTO & Software Architect

I'm a software architect focused on designing scalable and well-crafted systems. Bridging business and technology, i turn complex ideas into effective digital products with a pragmatic and results-driven approach. Passionate about technology since I was 12.

+7 years building
+5 products shipped
+14 projects worked

Projects

Expertise

Architecture & Design

There's no silver bullet. Effective systems require a broad toolkit and to choose the right approach for real-world problems.

DDD Clean Architecture Microservices Design Patterns Testing Distributed Systems

Project Management

I lead projects and teams by adapting methodologies to the context, considering team maturity, project scope and business impact.

Agile Scrum XP Waterfall Gitflow KPI OGSM Trunk-Based Development

Observability & Monitoring

I create strategies to enable faster diagnosis. It's better to find issues before users.

Grafana Metabase Prometheus Grafana Tempo OpenTelemetry Azure Monitor

Cloud & DevOps

I drive scalability, reliability and delivery speed.

Kubernetes GCP Azure Serverless Firebase Terraform Pulumi CI/CD

Databases

I choose and design data solutions based on performance and scale.

PostgreSQL SQL Server pgvector MongoDB

Languages

I apply the right language to solve each problem effectively.

C# JavaScript TypeScript VB.NET Java SQL PHP

Mobile

I build performant cross-platform mobile applications.

React Native

Web

I build scalable web applications across solid stacks.

.NET Framework .NET Core Fastify NestJS Node.js React JS Razor Express Next JS

Experience

Pump faviconPump

Marketplace to find health professionals.

CTO

2024 - Present

Responsible for architecting and developing the entire initial product from scratch, ensuring it is performant, cost-efficient, and built to scale. Created a full owned and independent markeplace payment architecture. I led the development of AI semantic search algorithms, distributed systems, and multi-platform apps. Drove the technical roadmap, set engineering standards, and supported hiring and team growth to align technology with the startup's business goals.

Payment Systems Google Cloud .NET React Native gRPC Microservices Semantic search Lexical algorithms AI Unit testing Integration testing PostgreSQL DDD OGSM Framework

Cubos Academy faviconCubos Academy

Online IT courses platform and AI educational tools.

Engineering Lead

2023 - 2024

Led three squads technically, ensuring architectural alignment and delivery standards while coordinating roadmaps, deadlines, and releases. Managed stakeholder relationships across product and leadership, translated goals into execution, and monitored progress. Owned delivery performance and was accountable for hitting KPIs defined by the company’s heads and management.

KPI Tracking Kubernetes Google Cloud Risk Management Trunk-Based Development Microservices

Tech Leader

2021 - 2024

Led a team of developers as a technical reference, making product decisions, planning roadmaps, designing systems and new features. Collaborating with other non-tech teams to ensure dealines and product directions.

Domain-Driven Design Distributed Systems Agile (Scrum) Google Cloud Kubernetes TypeScript Node.js NestJS PostgreSQL Redis Jest GitLab CI/CD

Fullstack Software Developer

Started developing end to end features for the main product, an online teaching platform. Introduced and helped implement improved architectural practices. Contributed heavily to increase the quality of the product, and led a performance optimization of legacy code that was impacting directly the customers with downtimes and slowness.

2021 - 2021

Fitcard faviconFitcard

Benefits and fleet management solutions.

Software Analyst

2020 - 2021

Worked as a mobile developer using React Native and as a UI/UX designer. I reviewed the backlog with a UI/UX lens, designed solutions using wireframes and prototypes, and leveraged a mobile design system in Figma before implementing in React Native. I proposed and built a custom React Native component library based on that design system to reuse across apps, reduce duplicated code, and simplify maintenance.

React Native UI/UX Figma Design System Wireframes Prototypes

Junior Software Analyst

2019 - 2020

Started developing large applications for fleet management and benefits solutions across Brazil. Worked on multiple projects using ASP.NET WebForms and ASP.NET Framework (C# and VB.NET), with a fullstack focus that included legacy frontend with HTML, CSS, and JavaScript with jQuery, plus SQL Server databases. Daily work included production support, planning new projects, and contributing to architecture, modeling, and technology choices.

ASP.NET WebForms ASP.NET Framework C# VB.NET HTML CSS JavaScript jQuery SQL Server

Education

Bachelor's, Computer Science

Faculdade de Americana - 2019 - 2022

Undergraduate degree focused on software development and computer science fundamentals.

Technician, Systems Development

ETEC Polivalente - 2016 - 2018

Technical program in software development and systems foundations.

Get in Touch

Have a project in mind or just want to connect? Reach out through any of these.