Micael Santana

Micael Santana

Senior Software Engineer

📍 Santa Catarina, Brazil | 📞 +55 47 99642 8339

📧 micaelparadox@gmail.com | 🔗 linkedin.com/in/micasan | 🌐 micasan.com.br | 🧭 Para empresas

Summary

Senior Software Engineer with over 12 years of experience in cloud computing, data engineering, cybersecurity, and legacy system modernization. Specialist in designing secure and scalable systems, delivering value-driven solutions in high-complexity environments. Strong background in multi-cloud (AWS, Azure, GCP, Kubernetes), data pipelines (Kafka, Spark), and modernizing COBOL/Mainframe applications to Java/Cloud. Passionate about mentorship, open source, and knowledge sharing in technical communities.

Technical Skills

Languages

Java, TypeScript, JavaScript, Python, PHP, SQL, Bash, Go

Frameworks

Spring Boot, Angular, Vue.js, React.js, Laravel, Node.js, Flask, FastAPI

Databases/Storage

PostgreSQL, MySQL, Cassandra, Redis, IBM Db2, DynamoDB, MongoDB

Cloud & Tools

AWS, Azure, GCP, Kubernetes, Docker, GitLab CI/CD, Kafka, Spark, Grafana, Dynatrace, Sentry, JBoss EAP

Other

Microservices, Cybersecurity, Legacy Modernization, Accessibility (WCAG, VLibras), Government Compliance

Professional Experience

BNDES

2025 - Present

Remote

  • Improved GHG emission calculations by 95%, integrating CO₂, CH₄, and N₂O tracking into frontend APIs.
  • Developed full integrations in Java (Spring MVC) with PostgreSQL and JPA.
  • Built a platform compliant with government requirements for integrating LCA modules with certification systems.
  • Structured CI/CD pipelines in GitLab, accelerating deployments and increasing reliability.
  • Delivered secure and efficient applications in Angular 20, TypeScript, and RxJS aligned with GOV.BR standards.
  • Created an administrative platform with RBAC for certifying bodies and stakeholders.
  • Ensured accessibility compliance with WCAG and VLibras.

Technologies: Angular 20, TypeScript, RxJS, GOV.BR Design System, Java, Spring Boot/MVC, PostgreSQL, JPA, REST APIs, GitLab

SAP

2023 - 2025

United States – Remote

  • Optimized financial transaction processing and risk assessment by 75%, integrating middleware with SAP S/4HANA Finance and SAP FSCM (Financial Supply Chain Management)
  • Developed scalable APIs to enable seamless communication between SAP ERP modules and external banking systems
  • Implemented CI/CD pipelines, streamlining deployments for SAP-based applications and enhancing system reliability
  • Ensured secure and efficient operations using JBoss EAP, SSH, and Bash, improving integration with SAP's enterprise landscape
  • Monitored and optimized system performance using Dynatrace, ensuring stability and responsiveness of critical SAP financial applications

Technologies: Java, Spring Framework, SAP S/4HANA, SAP FSCM, API Development, CI/CD, JBoss EAP, SSH, Bash, Dynatrace

Zup Innovation

07/2023 - 09/2023

Remote

  • Developed microservices for fintech using Spring Boot, PostgreSQL, and Kafka integrated with Angular front-ends.
  • Implemented idempotent endpoints and PCI-compliant logging.

Technologies: Spring Boot, PostgreSQL, Kafka, Angular

T-Systems do Brasil

10/2022 - 06/2023

Remote

  • Integrated corporate SAP modules via Spring Cloud Gateway.
  • Implemented SSO authentication with Keycloak (OIDC) and Vue.js dashboards for administrators.

Technologies: Spring Cloud, Keycloak (OIDC), Vue.js, PostgreSQL

Fidela

01/2022 - 12/2022

Ontario, Canada – Remote

  • Developed RESTful educational microservices with Spring Boot, JPA/Hibernate, PostgreSQL, and Redis.
  • Implemented distributed caching with TTL, invalidation policies, and asynchronous processing.
  • Built dashboards in Angular (RxJS, NgRx, D3.js/Chart.js) with RBAC for user profiles.

Technologies: Spring Boot, JPA/Hibernate, PostgreSQL, Redis, Angular, RxJS, NgRx, D3.js, Chart.js

Wiser Educação

06/2022 - 07/2022

Remote

  • Implemented backend features for e-learning (Node.js + PostgreSQL).
  • Integrated React.js dashboards with caching and prefetching; introduced GitOps practices for K8s.

Technologies: Node.js, PostgreSQL, React.js, Kubernetes, GitOps

Bagy

11/2021 - 07/2022

Remote

  • Developed scalable REST APIs for e-commerce in Laravel + AWS.
  • Supported stores in Vue.js, applying rate limiting and distributed tracing.
  • Created Python scripts for domain reports.

Technologies: Laravel, AWS, Vue.js, PHP, Python (scripting), PostgreSQL

Mercedes-Benz AG

2017 - 2023

United States – Remote

  • Automated deployment processes across 100+ microservices, increasing productivity by 25%
  • Spearheaded the migration of legacy COBOL systems to Java, reducing downtime and enhancing operational processes
  • Implemented robust security protocols and compliance standards (SOC2, GDPR) across microservices architecture, reducing vulnerability risks by 40%
  • Led a team of 5 engineers in developing cloud-native applications, improving service reliability from 99.5% to 99.9%
  • Collaborated with cross-functional teams to integrate automotive systems with cloud services, enhancing vehicle connectivity features

Technologies: Java, Spring Boot, Docker, Cassandra, Apache Spark, Python, API Development, Bash, Git, Kubernetes, AWS, GCP, Azure, Kafka, Grafana, Dynatrace, Sentry

QAT Global

02/2018 - 03/2021

USA, Brazil & Costa Rica – Remote

  • Maintained Java enterprise systems and Angular portals.
  • Optimized database performance with indexes and lazy loading.

Technologies: Java, Angular, PostgreSQL, SQL

Grupo Dataclick

10/2015 - 11/2017

Itajaí, Brazil

  • Designed and deployed a secure internal payment gateway, improving transaction success rates by 40%
  • Enhanced customer satisfaction, leading to the adoption of the solution by over 1,500 clients
  • Built and optimized robust APIs, integrating banking applications and payment systems
  • Optimized data pipelines with Apache Airflow, reducing data processing latency

Technologies: PHP, PostgreSQL, Slim Framework, AngularJS, Java, Docker, React Native, Angular, Apache

CTIS Tecnologia

01/2013 - 10/2015

Brazil

  • Delivered full-stack development for web-based applications, utilizing Java, JSP, and MySQL
  • Improved user experience by implementing modern HTML and CSS standards, increasing system usability
  • Supported the development of critical enterprise systems, ensuring high-quality code and performance

Technologies: Java, JSP, JSF, JPA, IBM Db2, MySQL, jQuery, JavaScript, HTML, CSS, JBoss EAP, Red Hat Linux

Education

Bachelor of Computer Science

Universidade do Vale do Itajaí, Santa Catarina, Brazil · 2019 - 2026

Technologist in Information Technology

Instituto Federal de Brasília (IFB) · 2013 - 2016

Certifications

AWS Certified Solutions Architect – Associate (04/2024)

Languages

Portuguese: Native

English: C1 Level (Full Professional)

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