Felipe – Java, React, Typescript

Built banking and fintech integrations for mission-critical financial systems, focusing on cloud-native architecture, legacy system modernization, security, and scalable backend services.

• Designed and developed fintech integrations involving core banking, loans, payments, onboarding, open finance, and data integration flows using Java, Spring Boot, and Spring Cloud;
• Contributed to legacy system modernization initiatives, including migration of secrets and configuration management to HashiCorp Vault;
• Designed and maintained AWS infrastructure using Terraform, EKS, Secrets Manager, SNS, and SQS to support scalable and secure cloud-native services;
• Acted as a technical reference for architecture decisions, code reviews, project estimates, and mentoring across small engineering teams;
• Worked on mission-critical, revenue-impacting banking systems under regulatory and security constraints, including US banking requirements.

Worked on a gaming marketplace platform, contributing to backend services, React-based frontend development, cloud infrastructure, observability, automation, and scalable marketplace features.

• Built and maintained backend APIs for a gaming assets marketplace using Kotlin and Spring Boot;
• Developed serverless components using Python and AWS services, including Lambda, Step Functions, S3, SNS, and SQS;
• Designed and deployed observability and SRE features to improve tracing, monitoring, and metrics across distributed systems;
• Supported marketplace platform capabilities related to gaming asset catalog management, automation, and cloud infrastructure;
• Collaborated with cross-functional teams to deliver scalable backend and infrastructure improvements under project deadlines.

Led architecture and product engineering for a healthcare startup focused on helping physicians improve diagnostics and patient treatment follow-up.

• Designed the end-to-end solution architecture for a healthcare SaaS product, covering backend, frontend, cloud infrastructure, authentication, and deployment;
• Developed backend services using Kotlin and Node.js serverless components on AWS;
• Built frontend features using React, Material UI, Context API, and Redux;
• Implemented cloud infrastructure using Terraform and AWS services, including ECS, RDS, S3, Cognito, and SNS;
• Led a small engineering team through technical decisions, code reviews, 1:1 meetings, onboarding, hiring support, performance feedback, and software development KPIs;
• Worked in a HIPAA-sensitive environment, considering healthcare privacy, security, and compliance requirements during product and architecture decisions.

Worked on modernizing a vehicle remarketing platform, supporting the migration of client account functionality from a legacy monolith to Salesforce and new cloud-native services.

• Designed and contributed to the migration of client account capabilities to Salesforce, improving customer account management and integration with new sales workflows;
• Applied event-driven architecture and anti-corruption layer patterns to isolate the legacy monolith while enabling new microservices;
• Designed cloud-native microservices and integrations using AWS services, including S3, Lambda, API Gateway, SQS, Kafka, and DynamoDB;
• Led requirements gathering, solution architecture design, proof-of-concept development, and domain-driven design activities;
• Collaborated directly with technical and business stakeholders to align architecture decisions with modernization goals and delivery deadlines.

Developed cloud-native financial infrastructure for a Brazilian open banking startup, contributing to scalable backend systems, microservices architecture, and secure financial services.

• Designed, developed, and deployed cloud-native systems and scalable backend services;
• Improved Node.js application performance, reliability, and maintainability;
• Enhanced application observability through distributed tracing, monitoring, and performance analysis;
• Built and maintained microservices-based architectures;
• Developed secure banking integrations and strengthened security architecture for financial systems.