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isac oliveira

@isacoliveira

Backend Software Engineer at Trustly, delivering security remediation for merchant authentication and modernizing payment platforms.

Brazil

Message

At Trustly, I provide technical leadership for the Backoffice team while developing merchant-facing and internal payment platforms. I delivered security remediation across merchant login and password-reset flows and diagnosed production data-integrity issues through log analysis.

At PagoNxt (a Santander company), I built and maintained backend APIs and integrations for a high-availability fintech platform, and developed RabbitMQ processing pipelines to support data consistency across distributed services. I also created Cliniq, a healthcare SaaS project, and starter kits for Node.js and Go services.

Experience

Work history, roles, and key accomplishments

Current

Backend Software Engineer

Current

Trustly

May 2026 - Present (4 months)

Provide technical leadership for the Backoffice team, combining hands-on backend development with technical strategy and architectural decision-making for merchant-facing and internal payment platforms. Lead technical discovery and drive modernization of legacy platform components.

Java Spring Boot Go NodeJS TypeScript PostgreSQL MongoDB MySQL RabbitMQ AWS Docker Microservices

Backend Software Engineer

PagoNxt

Dec 2022 - May 2026 (3 years 5 months)

Built and maintained backend APIs and integrations using Golang and Node.js for a high-availability fintech platform processing over $90B in annual transactions. Investigated complex production and integration issues and developed asynchronous processing pipelines using RabbitMQ and event-driven architecture.

Go NodeJS TypeScript MongoDB MySQL RabbitMQ Docker AWS

Product Engineer

Alubar

Mar 2021 - Dec 2022 (1 year 9 months)

Developed backend systems and API integrations for process automation, building data extraction and automation solutions interacting with web-based systems. Investigated API communication issues and system failures, optimizing PostgreSQL, MySQL, and MongoDB workflows and schemas.

PostgreSQL MySQL MongoDB API Integration Automation

Software Engineering Intern

Equatorial Energia

Oct 2019 - Mar 2021 (1 year 5 months)

Developed monitoring dashboards and automation solutions, supporting system architecture design and technical documentation. Participated in Agile ceremonies and contributed to modernizing legacy processes with structured documentation.

Monitoring Automation Agile Documentation

Education

Degrees, certifications, and relevant coursework

Fundação Getulio Vargas – FGV

MBA, Project Management

MBA in Project Management with Agile Methodologies specialization, focusing on stakeholder management, Scrum, budget control, risk management, PMBOK, conflict resolution, and KPI-driven decision making.

Federal University of Pará – UFPA

Bachelor of Science, Electrical Engineering

Activities and societies: Volunteer tech instructor teaching computer literacy to seniors and underprivileged children.

B.Sc. in Electrical Engineering with Software Engineering specialization. Collaborated with cross-functional teams to develop automation solutions and volunteered as a tech instructor teaching computer literacy to seniors and underprivileged children.