Software Engineer
Back-end Engineer
Available for hire
Years of
experience
5+ years
Experience
level
Mid-level
Available
for
Full-time, Part-time, Contract, Freelance
• Seasoned Software Engineer with +5 years of experience in different industries such as sportstechs, telecommunications and game-commerce.
• Main technologies include JavaScript, TypeScript, Node.js, NestJS and MongoDB.
• Served as a Software Engineer at DashSkins, specialized in developing and maintaining applications that are used by +300k users.
• Regarding soft skills, usually described by co-workers as a creative and communicative person who stays curious and has a high capacity for fast-paced learning.
• Notable achievements include architecting a messaging system for 30M+ users, handling millions of daily messages. Using NestJS, Kafka, MongoDB, OpenShift and Azure, I eliminated processing bottlenecks and ensured stability during massive traffic spikes.
Skills
Languages
Employment History
Software Engineer - Back-end at
Dashskins
2024
-
2026
• Reduced by 43% (from ~350 to ~200 USD) the external API cost by implementing a custom
system that I structured using NestJS, Typescript and PostgreSQL, thus leading to a better
structure, reliability and response time.
• Reduced by 75% (from ~2 to ~0.5 GB) the RAM consumption on AWS EC2 instances by
optimizing the Node.js (V8) engine through batch processing and implementing a streaming
architecture using NestJS, TypeScript, and Node.js Events, thus improving overall performance and increasing tolerance to "heap out of memory" errors.
• Reduced by 56% (from ~9000 to ~4000 ms) the backend API response time by implementing a
caching layer and architecting a data ranking system with SQL views over history and assets tables, using NestJS, TypeScript and PostgreSQL, thus significantly improving latency and reducing the query load on external systems.
• Reduced by 54% (from ~55 to ~25 ms) the autocomplete query latency by implementing fuzzy
search and tokenization methods using NestJS, TypeScript, and MongoDB, thus considerably
improving response times and user experience.
Software Engineer - Back-end at
Tatic
2022
-
2024
• Increased from ~50% to ~90% the test coverage across projects by implementing automated unit tests using Jest, NestJS, and TypeScript, thus ensuring function output reliability and preventing regressions during code maintenance.
• Reduced by ~40% the system coupling and latency by architecting a microservices-based
communication layer using Kafka, NestJS and TypeScript, replacing synchronous REST calls with event-driven patterns, thus ensuring high data consistency and system resilience.
• Increased by ~55% the notification delivery speed across SMS, email, WhatsApp, and Push App by implementing a centralized multichannel system using NestJS and TypeScript reducing the time-to-delivery for critical alerts and improving overall user engagement.
• Reduced by ~60% the occurrence of production bugs by integrating SonarQube into the CI/CD pipeline, enforcing strict code quality gates and automated security scanning for Node.js services, leading to more reliable and secure deployments.
Software Developer - Back-end at
DevMagic
2021
-
2022
• Increased by ~30% the system processing speed migrating a legacy PHP system to Node.js
(Express) and TypeScript, creating a more scalable architecture with lower latency.
• Increased by ~25% the transaction success rate by implementing Stripe and PayPal gateways using Node.js (Express) and TypeScript, ensuring secure webhook handling and a reliable checkout.
• Reduced by ~38% the monthly infrastructure costs by deploying serverless functions via AWS Lambda using Node.js and TypeScript, automating background tasks and replacing always-on servers with on-demand executions.
• Reduced by ~70% the time spent on manual data migrations by creating custom JavaScript scripts to automate the parsing of Excel files and their insertion into Firebase, ensuring 100% data integrity.
Education
Bacharelor's Degree in Computer Science at
University Center of Formiga (UNIFOR-MG)
2016
-
2020