Hi, I'm Diego Santos

Open to work Available for Remote

Professional Experience

1. 2024 — Present

   Full Stack Engineer · Chicksgold (Contract)

   Architect and scale mission-critical backend services and robust financial transactional workflows using C#, .NET 8, and ASP.NET Core for a high-traffic e-commerce marketplace. Engineered high-performance RESTful Web APIs, optimized complex MySQL schemas and indexing strategies to eliminate transaction latencies, and streamlined cross-cloud deployments leveraging AWS, Azure, and automated CI/CD pipelines.

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2. 2024

   Full Stack Developer · MTS Group (Project-based)

   Engineered secure backend architectures and data-processing pipelines utilizing Python and Django. Optimized relational MySQL databases to guarantee multi-service data consistency, implemented enterprise-grade JWT authentication mechanisms, and managed cloud provisioning across AWS (EC2, S3) ensuring 99.9% uptime for production environments.

3. 2024

   Full Stack Developer · Dream Junk Studios (Contract)

   Developed highly available APIs and user management systems using Node.js, Express, and TypeScript. Substantially reduced API latency overhead by redesigning database query filters and schema configurations under PostgreSQL, ensuring optimal high availability and system reliability.

4. 2023 — 2024

   Backend Developer · Argatio (Project-based)

   Successfully decoupled a legacy monolithic platform into a distributed Node.js microservices architecture, driving massive gains in scalability and system observability. Modeled mixed database layers using MySQL and MongoDB, built fault-tolerant integrations, and implemented structured logging pipelines.

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Projects

Tracli — Developer Time Tracking Ecosystem

Code

An enterprise-grade, offline-first CLI tooling suite engineered for frictionless developer workflows. Built following Domain-Driven Design (DDD) and Clean Architecture across four strictly decoupled layers (Domain, Application, Infrastructure, and Interface). Features a secure Express REST API backend for automated cloud synchronization and a polished React/Tailwind analytics dashboard. Distributed and published as a modular package via GitHub Packages.

• TypeScript
• Node.js
• React

BlockBeat — Cryptocurrency Real-Time Tracker

Code

A high-performance cryptocurrency tracking platform built with .NET 8 and React. Engineered to seamlessly ingest, process, and map real-time market data directly via the CoinCap API. Implements optimized responsive historical data charts and an efficient data-mapping layer to guarantee smooth, low-latency UI rendering under frequent state updates.

• Dotnet
• React
• TypeScript

Feature Flag Platform — Low-Latency Monorepo

Code

A production-ready feature flag ecosystem architected as a monorepo, pairing a robust REST API (Express + Prisma + MySQL) with a custom, zero-dependency TypeScript SDK. Implements a Redis caching layer for ultra-low latency environment-scoped flag lookups (dev/qa/prod), guaranteeing sub-millisecond execution times (`isEnabled()`, `getFlag()`) ready to be dropped into distributed Node.js microservices.

• TypeScript
• Node.js
• Prisma
• Redis
• Next.js

Skills

About me

My name is Diego, but most in the engineering field call me Santos. I’m a Full Stack Engineer focused on architecting resilient backend ecosystems, optimizing high-volume databases, and building maintainable web applications using modern cloud technologies.

Currently, I scale backend services, RESTful Web APIs, and financial transactional workflows at Chicksgold for a high-traffic e-commerce marketplace. My day-to-day involves solving concurrency challenges, ensuring strict data integrity under heavy transaction flows, and streamlining cross-cloud deployment pipelines across AWS and Azure.

Throughout my career collaborating with distributed tech teams and startups across Latin America, I’ve specialized in migrating legacy monolithic systems into cloud-native microservices architectures. I’m a strong advocate for SOLID principles, automated workflows, and clean software patterns that allow engineering teams to ship code to production with total confidence.

I don’t just write code; I design systems that scale alongside the business while continuously evolving my engineering and infrastructure skills.