Ramon Oliveira
Stone
Eunápolis
3
Languages
4
years of professional experience
Software Engineer with ~4 years of experience building high-scale financial systems in regulated fintech environments. Experienced in backend and distributed systems, building and evolving event-driven architectures and high-volume processing pipelines using C#/.NET, Node.js, Kafka, RabbitMQ, AWS, and Azure. Contributed to platforms processing millions of financial transactions daily, including systems handling ~10M events/day, reducing peak processing time by ~60%, and leading large-scale platform migrations that improved data reliability and reduced operational costs.
Work History
Software Engineer III
1 Year 5 Months- Contributed to the design and development of a high-scale financial registry platform acting as an abstraction layer over an external regulatory system, supporting the lifecycle of receivables, contracts, and settlement reporting (C#, .NET, Azure, SQL Server, MongoDB).
- Scaled and improved an event-driven architecture using MassTransit and RabbitMQ to process ~10M daily webhook events and millions of receivables and contract effects, increasing throughput and reliability across distributed systems.
- Eliminated processing delays and regulatory penalties by redesigning the receivables registration workflow to pre-process non-business day transactions, reducing total processing time by ~60% during peak periods following non-business days and ensuring compliance with strict deadlines.
Software Engineer II
1 Year 1 Month- Designed and developed core services orchestrating the end-to-end settlement lifecycle, including settlement generation, batching, external payment execution, and reconciliation of underlying receivables across multiple payment products.
- Re-architected contract validation for settlement flows by implementing an event-driven pipeline handling ~10M daily webhook events, leveraging AWS Lambda and asynchronous workers, and deploying via shadow-mode and progressive rollout, increasing contract compliance accuracy by ~70%.
- Led the migration from a duplicated contract-processing pipeline to a centralized and reliable data source, using progressive rollout strategies to eliminate redundant processing, reduce infrastructure costs, and improve data reliability for settlement systems.
Software Engineer I
1 Year 6 Months- Optimized large-scale financial processing by redesigning aggregation workflows, eliminating memory bottlenecks, and ensuring reliable processing of millions of daily transactions (Node.js, PostgreSQL).
- Improved system scalability by decoupling synchronous operations into asynchronous event-driven pipelines, significantly increasing throughput and reducing execution time during peak settlement cycles.
Education
Bootcamp - Full-Stack Web Development
Bachelor's Degree - Electrical Engineering
Skills
Backend Development (C# .NET / Node.js)
Cloud Platforms (AWS / Azure)
Distributed Systems
Event-Driven Architecture
High-Scale Data Processing
Microservices
Kafka
RabbitMq
CI/CD
Testing
Fault Tolerance
Data Consistency
Languages
English
C1
Advanced
Spanish
B2
Upper intermediate
Portuguese
C2
Bilingual or Proficient
Timeline
Software Engineer III
Stone
03.2025 - CurrentRead More
Software Engineer II
Stone
02.2024 - 03.2025Read More
Software Engineer I
Stone
08.2022 - 02.2024Read More
Driven Education
Bootcamp from Full-Stack Web Development
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Fluminense Federal University
Bachelor's Degree from Electrical Engineering
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