Marcus Santos

I’m a Senior Software Engineer with 9+ years of experience building scalable web, mobile and cloud-based applications across SaaS, e-commerce and distributed systems. I focus on scalability, performance optimization, and long-term maintainability, and I enjoy modernizing legacy systems into reliable architectures. In practice, I deliver solutions that balance product delivery with engineering excellence in fast-paced remote environments.

Across my roles, I’ve helped improve application performance by 30–45%, reduced deployment cycles by 40%, supported platforms scaling to 2–3× traffic growth, and improved production reliability through CI/CD automation and infrastructure optimization. I build scalable backend services and distributed systems, and I bring strong cloud infrastructure ownership across AWS, GCP, and Azure.

On the engineering side, I develop and integrate REST APIs and backend workflows using Microservices patterns, while also enhancing frontend functionality with React and modern web technologies. I integrate cross-platform Android and iOS mobile application features with scalable backend services so everything communicates cleanly with cloud-based production systems.

I’m also deeply hands-on with DevOps practices: Dockerized CI/CD pipelines, monitoring and observability, and deployment automation that speeds up issue investigation and strengthens operational consistency. I collaborate closely with cross-functional engineering and product teams using agile workflows, contributing to scalable software delivery and technical architecture planning.