João Barbosa
software engineer · goiânia, br
Building things that scale. Currently refactoring critical systems and shipping payment features at Payevo. Check out my blog to see what I'm thinking about.
I'm a FullStack Software Engineer at Payevo, a payment gateway evolving into a fintech. I specialize in refactoring critical systems and scaling features using Next.js and Supabase. My journey includes a high-impact residency at BRISA & UFG building healthcare mobile software, and a solid foundation in IT infrastructure. I'm pursuing my degree in Software Engineering while exploring complex architectures through personal projects and engaging in innovation programs like Campus Mobile.
FullStack Software Engineer at an expanding payment gateway transitioning into a Fintech, leveraging a modern stack based on Next.js and Supabase (TypeScript). Responsible for identifying, prioritizing, and executing critical refactoring of legacy modules, implementing complex integrations for acquirers and checkouts, and developing advanced auditing tools for transaction monitoring.
Backend Developer in a high-impact technology residency program, responsible for modernizing the "Mamãe Pingo" mobile ecosystem. Led the technical restructuring of a legacy system, implementing automated testing standards and containerized development environments that boosted team productivity and software reliability for healthcare stakeholders.
Strategic role within the infrastructure department, ensuring high availability and stability for public management systems across on-premise and cloud (AWS) environments. Responsible for proactive monitoring of critical services and automating update routines on Linux servers.
Experience in managing customer relationships and translating business needs into technical solutions. Developed communication and negotiation skills that facilitate requirements gathering and direct interface with stakeholders.
Focused on critical diagnostics and resolution of hardware and software failures. Provided a solid understanding of computer architecture and the physical processing layer — fundamental skills for writing performant code.
Personal containerized infrastructure used as an experimentation environment for DevOps practices, observability, and secure networking. The environment replicates production-inspired tooling — monitoring stacks, automated updates, and zero-trust service exposure without open ports.
Fullstack application developed as a technical challenge to manage clients and credit card data through a structured REST API and relational database model. Focused on type safety, schema validation, and modern frontend development practices.
Participation in Brazil's leading mobile innovation program, promoted by Instituto Claro. Development of technology solutions with social impact, collaborating with multidisciplinary teams in a high technical and creative-demand environment.
Active member of Breaking Tech, an academic group with professional-level output under faculty supervision. The group develops real software projects, integrating academic knowledge with market practices — prototyping, code review, and professional-quality deliverables.
Participated as a partner community representative at Campus Party Goiás, one of the world's largest technology and innovation festivals. Networking with industry leaders and immersion in trends across technology, entrepreneurship, and digital culture.
Let's talk.
Reach me at joao1barbosa@hotmail.com or via the social links below. Always open to interesting projects and conversations. You can also browse my blog and notebook.