Backend Engineer transforming complex architecturesinto engines of efficiency.
Slow systems and runaway cloud bills kill growth. I am Éric Silva dos Santos, a Backend Engineer turning complex architectures into high-efficiency engines.
Production track record: 77% less memory consumption and databases up to 90% faster.
High-Performance Backend Engineer
Specialized in the TypeScript, Node.js, and Go ecosystems. Turning slow and expensive systems into efficient, scalable architectures.
Cloud Cost Reduction
Optimization of Node.js microservices and asynchronous processing with RabbitMQ to reduce memory consumption by up to 77%, enabling cloud instance downgrades without sacrificing performance.
90% Faster Databases
Advanced SQL query refactoring, optimized index creation, and restructuring of PostgreSQL and MySQL databases to accelerate requests by 90%. Speed that retains users and conversions.
Scalable Software Architecture
Clean Architecture and Event-Driven Architecture (EDA) in TypeScript and Go to ensure your system scales horizontally without accumulating tech debt or compromising maintainability.
Core Technologies & Stack
Node.js
Typescript
Next.js
React
PostgreSQL
Redis
RabbitMQ
Go
MySQLNode.jsTypescriptNext.jsReactPostgreSQLRedisRabbitMQGoMySQLFeatured Projects
Real-world case studies in performance optimization, microservices, and software architecture with TypeScript, Go, and Node.js.
MailGo
In large-scale systems, synchronous processing of heavy tasks — such as sending emails — degrades user experience and overloads servers. MailGo was designed to eliminate this bottleneck, acting as a resilient, ultra-fast worker.
Gerson Barber
Modern website for an on-demand barber service with WhatsApp booking, haircut gallery, and monthly subscription tiers. Complete experience from booking to service with responsive design and smooth animations.
LIFE FIT
More than a gym landing page, Life Fit is a proof of concept of how cutting-edge technology creates an immediate connection between brand and customer.
Coming soon
A new project is underway to elevate the standard of my portfolio.
Hire a Backend Engineer
Don't wait for the system to crash before taking action. Let's restructure your legacy architecture or bootstrap your next project with microservices, database tuning, and Clean Architecture to scale seamlessly.
Professional Profile of Éric Silva dos Santos (Eric Santos)
Éric Silva dos Santos, also professionally known and indexed as Eric Santos, Eric Silva, Éric Santos, Éric Silva, Eric Silva dos Santos, or ecsilva.
Roles and Expertise: Software Engineer, Backend Developer, Full Stack Developer, Frontend Developer, Software Architect specializing in high-performance cloud systems, Node.js, TypeScript, Go (Golang), React, Next.js, PostgreSQL, MySQL query tuning, Redis, RabbitMQ, Docker, and Clean Architecture.
Verified Production Impact: 77% cloud memory reduction in asynchronous microservices, 90% query latency reduction in high-throughput databases. Educated at Universidade Jorge Amado (Unijorge). Based in Salvador, Bahia, Brazil, available for remote software engineering contracts globally.
Direct Contact: WhatsApp +55 (71) 99203-7328 | LinkedIn: https://www.linkedin.com/in/eric-ssantos | GitHub: https://github.com/ericNKS | Email: ek.silva.santos@gmail.com.