Diego Santana
Diego Santana

Senior Backend and Full-Stack Software Engineer

Actively looking · Member since 6 Nov 2026
Location
Salvador, Brazil
Desired salary
100k–150k USD/yearly
Work preference
Remote Only / Full Time, Part Time, Freelance
Experience level
Senior

About

Professional summary

Software Engineer with 11+ years in software development, including 7+ years delivering backend and full-stack systems in product and consulting environments. Specialized in Java and Node.js microservices and distributed systems, deployed cloud-native on Kubernetes across Azure and AWS. Currently on the Web Checkout team at Mercado Livre, working on payment operations across Latin America for a platform serving millions of users per day. Combines production observability (OpenTelemetry, Datadog) with AI-assisted development (Claude, Codex, MCP servers and agents).

Skills

32 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Data Stores

Experience

Career history

Software Engineer, Web Checkout Mercado Livre Brasil

I support payment operations across Latin America on the Web Checkout team, building service integrations for checkout and subscription platforms. I develop and maintain a high-volume user activity platform for purchase and subscription history that serves millions of users per day.

I use OpenTelemetry and Datadog for tracing, metrics, and monitoring of production services, and BigQuery for business and product analysis. I participate in on-call response and root-cause analysis, use Claude and Codex in daily development, and am building a PostgreSQL and pgvector RAG pipeline for team knowledge management.

Senior Software Engineer CI&T

I progressed from Software Engineer I to Senior Software Engineer in under two years. As a senior engineer, I acted as a technical reference on enterprise client projects and contributed across feature development, deployment, monitoring, and the broader software delivery lifecycle.

I delivered Java and TypeScript features as part of distributed consulting teams. I also implemented and improved CI/CD pipelines using GitHub Actions, SonarCloud, Harbor Registry, and XL Release to improve build quality and release reliability.

Systems Analyst, Pleno Cronapp

I worked on the team building Cronapp's low-code application platform, which was designed to accelerate delivery of custom business applications. My responsibilities included front-end development using AngularJS.

I worked with Google Blockly to support visual, block-based application modeling. I also delivered features backed by MySQL and PostgreSQL databases running on AWS infrastructure.

Systems Analyst WEX Brasil

I developed software for a credit card issuance company supporting benefits and travel card product lines. I worked on business-critical financial products with direct operational impact on card issuance.

I owned the development flow end to end, from requirements and implementation through production delivery and support. I held junior and mid-level Systems Analyst responsibilities during this period.

Java Developer Indra

I worked in software development consultancy, delivering enterprise applications for client projects in multidisciplinary teams. I built and evolved corporate systems using Java, JSF, and related enterprise web technologies.

I progressed from an internship into a full Java Developer role. My work covered the full development lifecycle for enterprise software solutions.

Web Development Intern ZCR Informática

I completed a web development internship at ZCR Informática. I gained early professional experience in software and web development.

The resume does not provide further details about the technologies, projects, or responsibilities for this role.

Web Systems Development Intern Caixa Econômica Federal

I developed web systems using PHP and performed database modeling with Microsoft SQL Server. I contributed to the implementation of internal software solutions.

I also conducted requirements gathering and prepared technical documentation. This role provided foundational experience in analysis, development, and documentation practices.

Education

Learning history

Universidade Salvador (UNIFACS)

Postgraduate, Big Data

Postgraduate studies in Big Data.

Unijorge

Bachelor of Science, Systems Analysis

Bachelor's degree in Systems Analysis (Análise de Sistemas de Computação).

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